cat-acz-4

Catalog Cat ACZ-4

Engineered for flexibility and performance. �

Air-Cooled Scroll Condensing Units ACZ 010A – ACZ 155B, Condensing Units

10 to 155 Tons, (35 to 540 kW)

60 Hertz, R-22

2 ACZ 010A through 155B Catalog ACZ-4

Table of ContentsIntroduction................................................................................................ 3

Features and Benefits................................................................................. 4

Design Features.......................................................................................... 6

Selection Procedure ................................................................................. 13

Performance Data..................................................................................... 14

Part Load Data ......................................................................................... 20

Sound Data............................................................................................... 21

Electrical Data, General........................................................................... 26

Electrical Data, Standard Ambient .......................................................... 27

Electrical Data, High Ambient................................................................. 40

Physical Data ........................................................................................... 49

Dimensional Data .................................................................................... 56

Application Data ...................................................................................... 60

Optional Features..................................................................................... 70

Product Specification............................................................................... 72

"Illustrations and information cover the McQuay International products at the time of publication and we reserve the right to make changes in design and construction at anytime without notice."

®™ The following are trademarks or registered trademarks of their respective companies: BACnet from ASHRAE; LONMARK and LONWORKS from Echelon Corporation; McQuay and MicroTech II from McQuay International;

Copeland's Compliant Scroll® from Copeland Corporation, Sidney, Ohio and ElectroFin from AST ElectroFin Inc.

Controllers are LONMARK certified with an

optional LONMARK communication module

Document Number: Catalog ACZ-4 Issued: June 2005 Replaces: PM ACZ-3

Manufactured in an ISO certified facility

Controllers are BACnet certified with an

optional BACnet communication module

Catalog ACZ-4 ACZ 010A through 155B 3

Introduction The ACZ family of air-cooled scroll condensing units offers a wide selection of units from 10 to 155 tons. The ACZ-A series has capacities from 10 to 39 tons with a single refrigerant circuit using a set of tandem scroll compressors. The ACZ-B series has capacities from 30 to 155 tons with dual refrigerant circuits with either two or three scroll compressors in each of two circuits.

The ACZ series of air-cooled scroll condensing units continues McQuay’s legacy of high quality, high efficiency, latest technology and quiet operation. These features make the ACZ family the best overall value in air-cooled condensing units available today.

Efficient Operation The ACZ units utilize R22 to meet the efficiency requirements of ASHRAE 90.1. With either two or three scroll compressors for each of two refrigerant circuits, excellent part load performance is achieved.

Latest Control Technology These units have the latest control technology through utilization of McQuay’s new MicroTech II™ microprocessor. Integrating with your building automation system is easy with the Protocol Selectability™ feature using LONMARK®, BACnet® or Modbus® network communication, requiring only the addition of a small communication module to the unit controller.

Compact Size Our reputation for compact designs with small footprints to minimize space requirements continues to be a primary feature.

Quiet Operation The ACZ units further enhance McQuay’s reputation for low operating sound levels to make these condensing units “neighborhood friendly”.

Figure 1, ACZ 130 (130 Tons) with Optional Full Louver Package


Features and Benefits

ACZ-A, Single Circuit, 10 to 39 Tons Great values also come in small packages. The ACZ-A units have a single refrigerant circuit with capacities from 10 to 39 tons. Customer benefits include high efficiency operation, low sound levels, scroll compressor technology and MicroTech II™ controls.

High Efficiency Operation The ACZ-A units operate at high efficiency with IPLVs up to 14.5 EER. Through the use of tandem scroll compressors and the latest control technology, excellent part load performance occurs.

Quiet Operation ACZ-A units have low sound ratings through the use of scroll compressors. These compressors are housed in a sheet metal enclosure to further reduce the levels. All units have a sound power rating of 90 dBA or less.

Superior Control With MicroTech II™ The MicroTech II™ controller is provided on the ACZ-A models providing control strategies expected of much larger condensing units.

Building Automation System Integration The MicroTech II™ controller allows for easy BAS integration through our Protocol Selectability™ feature using LONMARK, BACnet or Modbus communications. This is another advanced feature typical of larger condensing units.

Figure 2, Model ACZ 033, 30 ton Condensing Unit


ACZ-B Condensing Units, Dual Circuits, 30 to 155 Tons The ACZ-B units with dual refrigerant circuits from 30 to 155 tons offer outstanding benefits that make this product effect for a variety of applications. High Efficiency Full Load Operation ��Lower Energy Costs For High Loads Utilizing the new scroll compressor technology, the ACZ-B condensing units have high full load efficiency. All system components are selected for optimum performance including the large condenser coil areas and compressors. Full load EERs range up to 12.3 at ARI Standard Conditions (45°F saturated suction temperature, 95°F ambient temperature, sea level). Excellent Part Load Performance��Lower Energy Costs for Most for the Year By using either four or six compressors on each condensing unit, unloading characteristics and part load performance are outstanding. The IPLV part load values for our scroll units range up to 14.6 EER. Integrated part load value (IPLV) is a part load performance indicator as outlined in ARI Standard 365. The IPLV rating compares the performance of different condensing units under identical conditions. When the IPLV is listed in EER (Energy Efficiency Ratio), a higher EER will indicate that the chiller’s overall performance is better. Compact Design with Small Footprint��Installation Flexibility and Lower Cost Again, McQuay ACZ-B series condensing units have a reputation for a compact design and small footprint. A small footprint can save installation costs by minimizing the size of the concrete mounting pad or reduces the amount of structural steel if the unit is mounted on the roof. Quiet Operation -- “Neighborhood friendly”��Installation Flexibility The ACZ condensing units are designed with quiet scroll compressors. Fans are selected for good performance and lower sound levels. The attention to detail with sound in mind is critical in the design. Paying attention to small issues such as refrigerant piping, supports for piping, and securing component to the structure are all important to making a quiet product. We proudly publish our sound performance. Superior Controls -- MicroTech II™��Efficient, Reliable Operation Once again, McQuay has provided the latest technology in controlling the ACZ-B condensing units. The new MicroTech II™ controller provides a “user friendly” environment for the operator. The control logic is designed to provide maximum efficiency, to help provide continuing operation in unusual operating conditions through proactive controls and to provide a history of conditions to aid in problem resolutions. Perhaps the greatest benefit is Protocol Selectability™ for integrating the unit with your building automation system (BAS). MicroTech II™ allows interfacing into the BAS directly through LONTALK®, BACnet® or Modbus®. See the complete control description on page 7 in this catalog.


Design Features

The McQuay ACZ Air-Cooled Condensing Unit is a product of the McQuay commitment to offer quiet, reliable, energy efficient equipment. An approach incorporating high quality compressors, state-of-the-art coil design, and innovative packaging.

Construction Factory assembled and mounted on a heavy-gauge steel channel base. The base rails, supports and cabinetry are powder-coat painted. The base distributes the unit weight for roof loading. Varied and convenient installation is possible by virtue of the unit's small footprint.

Compressors Copeland’s Compliant Scroll™ tandem or triple compressors are used. These rugged hermetic compressors are constructed with an integral cast iron frame, cast iron scrolls, three Teflon impregnated bearings, and three oil filtration devices for each compressor.

Using Copeland's Compliant Scroll tandem compressors provides two, four or six steps of capacity modulation depending on unit model size. One compressor can run alone, depending on the load of the system, resulting in excellent part-load efficiency. Each refrigerant circuit has specially designed oil and gas equalization lines to control oil migration.

The design also offers radial and axial compliance (no tip seals), a large internal volume for liquid handling, a removable suction screen, and a rotary dirt trap and oil screen. In addition, the compressor is self-compensating for wear, handles liquid and debris, and inherently yields the highest efficiency for its class.

This well protected compressor includes a solid-state motor protection module, 4 individual motor-winding sensors, a patented internal discharge temperature probe, and a patented shutdown feature that prevents reverse rotation. An internal discharge check valve helps prevent shutdown noise and comes standard with high and low pressure taps with Schrader valves, a sight glass, an oil level adjustment valve, and an off cycle crankcase heater.

Units are available in 60 Hertz electrical voltage configurations from 208 to 575 volt operating at 3500 rpm.

Condenser Coils Condenser coils have internally enhanced seamless copper tubes arranged in a staggered row pattern. The coils are mechanically expanded into McQuay lanced and rippled aluminum fins with full fin collars. A variety of optional coil material and coatings are available for corrosive atmospheres. An integral subcooler circuit provides subcooling to greatly reduce the possibility of liquid flashing. The external condenser coils are fitted with a protective wire mesh guard as standard equipment.

Condenser Fans and Motors Multiple direct drive dynamically balanced propeller fans operate in formed venturi openings at low tip speeds for maximum efficiency and minimum noise and vibration. A heavy-gauge vinyl-coated fan guard protects each fan.

Each condenser fan motor is heavy-duty, 3-phase, Totally Enclosed Air Over (TEAO) with permanently lubricated ball bearings and inherent overload protection. SpeedTrol option includes a single-phase motor with fan speed control on the lead fan for each circuit.


Figure 3, ACZ-B Typical Condensing Unit Piping Schematic

NOTES: 1. A shell-and-tube water chiller is shown. A wide variety of evaporator types can be used. 2. The filter-drier, solenoid valve, sight glass and TXV must be located as close to the evaporato Electrical Control Center Operating and equipment protection controls and motor starting components are separately housed in a centrally located, weather resistant control panel with hinged and key locked doors. In addition to the MicroTech II™ controller described in the next sections, the following components are housed in the panel: • Power terminal block, single point connection standard • Control, input, and output terminal block • Control transformer • Phase voltage monitor with under/over voltage and phase reversal protection • Fan contactors with short circuit protective devices • Optional ground fault protection • The standard FanTrol™ head pressure control system controls refrigerant discharge

pressure by fan staging. The FanTrol system cycles condenser fans based on discharge pressure and outdoor temperature and is designed for operation down to 35°F (1.7°C).

• Models 010A through 039A have the optional SpeedTrol control using both fan cycling and fan speed control on the lead fan per circuit and allows operation to 0°F (-18°C) outdoor temperature. Models 030B through 155B use fan VFD for operation between 35°F and 0°F (1.7°C and -18°C).

• Mechanical high pressure cutout

• Power connections are per following table:

Power Connection Power Block

Disc. Swt.

Comp. Circuit

Breakers

Circuit Breakers w/ High Interr.

Capacity

Panel High Short Circuit

Current Rating ACZ 010-039, Single-Point, (Std.) Std. Opt Not Avail. Opt. Not Avail ACZ 030-155, Single Point, (Std ) Std Opt. Std Opt. Opt ACZ 030-155, Multi-Point, (Opt.) Std Opt. Not Avail. Opt. Opt.

Definitions on the following page.


Definitions: 1. Power Block, An electrical device to directly accept field wiring without any

disconnecting means. 2. Disconnect Switch, A molded case switch that accepts field wiring and disconnects

main power to the entire unit or each main power supply if the multi-point power supply option is selected. This option does not provide overcurrent protection.

3. Compressor Circuit Breakers, A manually reset circuit breaker for each compressor, providing compressor only protection and located ahead of the contactor. Provides overcurrent protection for each compressor.

4. Unit Circuit Breaker with High Interrupting Capacity, A molded case circuit breaker acting as the main disconnect switch with short circuit current rating (formally known as “withstand”). Capacities are shown on page 71. One circuit breaker is provided with each electrical circuit. The circuit breaker provides overcurrent protection for each power supply.

5. Control Panel High Short Circuit Current Rating, (Previously known as “withstand rating”). The entire control panel is designed for short circuit current rating as shown on page 71. In the event of a short circuit, the damage is contained within the control panel enclosure.

Control System The MicroTech II™ advanced DDC unit controller surpasses all other microprocessor-based unit control systems available today. This powerful, user-friendly control system provides the flexibility and performance needed for either stand-alone unit operation or the controller can be easily tied into your building automation system of choice using McQuay’s exclusive Protocol Selectability™ feature. Protocol Selectability™ allows you to choose from open standard protocols such as BACnet®, Modbus®, and LONTALK® to communicate easily with the Building Automation System that best meets your facility requirements. These optional communications modules are available factory-installed or can be easily field installed. MicroTech II™’s state-of-the-art design will not only permit the unit to run more efficiently, but will also simplify troubleshooting if a system failure occurs. Every MicroTech II controller is programmed and tested prior to shipment to help provide a trouble-free start-up. Operator-friendly The MicroTech II control menu structure is separated into four distinct categories that provide the operator or service technician with a full description of current unit status, control parameters, and alarms. Security protection helps prevent unauthorized changing of the setpoints and control parameters. MicroTech II continuously performs self-diagnostic checks, pressures and protection devices, monitoring system temperatures, and it will automatically shutdown a compressor, a refrigerant circuit or the entire unit if a fault occurs. The cause of the shutdown will be retained in memory and can be easily displayed in plain English or metric units for operator review. The MicroTech II unit controller can also retain and display the time the fault occurred and the operating conditions that were present at the time of the fault, which is an extremely useful feature for troubleshooting. In addition to displaying alarm diagnostics, the MicroTech II controller also provides the operator with a warning of pre-alarm conditions. Alarm notification data can also be passed to your BAS through an optional communications module.


Staging Temperature control for the evaporator is provided by the installer through a field supplied temperature controller. The field supplied staging signals are provided to the MicroTech II controller which correspondingly activates and deactivates the scroll compressors. The temperature controller is required to close normally-open 24 volt contacts on a demand for cooling. These closure signals are field wired to the terminal strip (TB2) in the condensing unit. Refer to the typical field wiring diagram for details. The following control staging is required:

Condensing Unit Model Number of Capacity Steps

Number of Required Contact Closure Signals

ACZ-010A through 039A 2 2 ACZ-030B through 110B 4 4 ACZ-120B through 155B 6 6

Lead/lag is automatic and switched based on operating hours and compressor starts.

Equipment Protection The unit is protected in two ways: (1) by alarms that shut the unit down and require manual reset to restore unit operation and (2) by limit alarms that reduce unit operation in response to some out-of-limit condition. Shut down alarms can activate a remote alarm signal. Limit alarms activate a signal on the controller.

Shutdown Alarms

• High condenser pressure • Motor protection system • Phase voltage protection (Optional on ACZ-B only) • Outside ambient temperature • Sensor failures

Limit Alarms • Condenser pressure stage down, unloads unit at high discharge pressures • Low ambient lockout, shuts off unit at low ambient temperatures • Low evaporator pressure hold, holds stage #1 until pressure rises • Low evaporator pressure unload, shuts off stage #2

Unit Enable Selection • Enables unit operation from either local keypad, digital input, or BAS

Unit Mode Selection • Selects standard cooling, or test operation mode

Digital Inputs • Unit off switch

• Remote start/stop

• Flow switch

Digital Outputs • Shutdown alarm; field wired, activates on an alarm condition, off when alarm is

cleared • Evaporator pump or air handler fan motor; field wired, starts when unit is set to

start


Condenser fan control The MicroTech II™ controller provides control of condenser fans. The controller stages condenser fans based on discharge pressure.

Building Automation System (BAS) Interface The following BAS standard protocols are supported through McQuay’s Protocol Selectability™ option:

• BACnet/IP® • BACnet MS/TP® • BACnet Ethernet® • LONTALK ® • Modbus®

The following functions are generally available depending on the application and protocol in use:

• Enable/disable operation • Select operating mode • Set the network limit variable • Read all digital and analog inputs and outputs • Read operating mode and status • Send a description of each alarm when it occurs

Keypad/Display A 4-line by-20 character/line liquid crystal display and 6-key keypad is mounted on the unit controller. Its layout is shown below.

Figure 4, MicroTech II™ Keypad

The four arrow buttons (UP, DOWN, LEFT, RIGHT) have three modes of use. • Scroll between data screens as indicated by the arrows (default mode). • Select a specific data screen in a hierarchical fashion using dynamic labels on the right

side of the display (this mode is entered by pressing the MENU button). • Change field values in edit mode.

Menu Button

"Enter" Button


Figure 5, ACZ-B Control Panel

Figure 6, ACZ-A Control Panel

Optional Remote Interface Panel The ACZ units can be individually equipped with a remote user interface. It provides convenient access to unit diagnostics and control adjustments, remote from the condensing unit panel. A separate remote panel is required for each chiller on a job site. Each remote user interface is similar to its unit-mounted counterpart and offers the same functionality, including: • Touch sensitive keypad with a 4 line

by 20-character display format. • Digital display of messages in English

language. • All operating conditions, system

alarms, control parameters.


Features • Can be wired up to 1,640 feet (500 meters) from the unit for flexibility in placing each

remote user interface within your building. • The main control is isolated from the remote user interface wiring so that wiring problems

are less likely to damage the unit user interface. • Can be placed on a desk or surface or recessed wall mounted. Benefits • Allows you to access the user interface for each unit from one location, inside the building. • Users need to learn one format because the remote user interface is identical to the unit-

mounted version. • No additional field commissioning is required for the remote user interface. • Can be retrofit after unit installation. • All the BAS communications options are still available with the remote interface panel.

Cable and Wiring Recommendations

No more than 1,640 feet (500 meters) of wiring can be used to connect the remote user interface to the unit.

Power: AWG 22 twisted pair cable.

Communications: Belden 9841 or equal AWG 22 twisted pair.

A separate small communication terminal board is used at the unit and at the remote panel.

Figure 8, Remote User Interface Wiring Diagram

Figure 7, Remote Interface Panel Dimensions

0 1 2 3 4 5 6 sc

Chiller Terminal Board

0 1 2 3 4 5 6 sc

Display Terminal Board

30 Vdc +

Power Common

RX+/Tx+

Rx-/Tx-

Shield

A

pLAN phone stylecable to J10 ofchiller Unit control

A

pLAN phone stylecable to Remote

Display

Communications cable isBelden 9841 or equivalent

AWG22 twisted pair

Power is supplied throughAWG22 twisted pair cable

Note:Maximum distance between terminalblocks is 1640 feet (500 m)


Selection Procedure ACZ condensing units are selected in conjunction with some kind of evaporator equipment. The ACZ ratings are based on saturated suction temperature at the compressor inlet and on ambient air dry-bulb temperature. For a system selection, the ACZ condensing unit is usually selected first, then the line loss added to the condensing unit saturated suction temperature to determine the saturated evaporating temperature. This temperature is then used for the selection of the evaporator, whether it is a DX coil or shell and tube heat exchanger. The pipe size can be determined from procedures and data in the Refrigerant Piping Section. For selection purposes, the tubing size is based on a pressure equivalent of a two-degree F line loss (equal to about 3-psi pressure drop).

The correction for altitude found in Table 1 is applied, if applicable, by dividing the required job capacity by the correction factor to ascertain the necessary unit capacity in the Capacity Tables.

ACZ performance is found in Table 2 through Table 8 (I-P and SI) covering the normal range of saturated suction temperatures and ambient air temperatures.

Selection example, Inch-Pound units Given: Dual refrigeration circuits are required

400 Mbh job requirement 95°F ambient temperature 40°F saturated suction temperature 2,000 foot altitude

1. Correct for altitude by dividing the required capacity by the correction factor found in Table 1.

400 Mbh required / 0.986 factor = 406 mbh corrected requirement. 2. From Table 3, ACZ 030B through 065B, an ACZ 040 at the given conditions will

produce 410 Mbh with a unit power input of 41.3 kW and a unit EER of 9.9. 3. Correct for altitude:

Capacity: 410 Mbh x 0.986 = 404 Mbh Power: 41.3 kW x 1.009 = 41.7 kW EER: 9.9 EER x 0.986/1.009 = 9.7 EER

4. An evaporator would be selected at 42°F saturated evaporating temperature.

Selection example-SI units Use the same procedure as for Inch-Pounds but use SI tables and units.

Application Adjustment Factors Altitude Correction Factors Performance tables are based at sea level. Elevations other than sea level affect the performance of the unit. The decreased air density will reduce condenser capacity consequently reducing the unit's performance.

Table 1, Altitude Correction Factors Altitude Capacity Power

Sea Level 1.000 1.000 2000 ft (610 m) 0.986 1.009

4000 ft (1220) m 0.973 1.021 6000 ft (1830) m 0.959 1.031


Performance Data I-P Units Table 2, ACZ 010A through 039A

80°F 85°F 95°F 105°F 115°FUnit PWR Unit Unit PWR Unit Unit PWR Unit Unit PWR Unit Unit PWR Unit

ACZ Unit Size

Sat Suct. Temp (°F)

Fan & Control Power (kW) Mbh kWi EER Mbh kWi EER Mbh kWi EER Mbh kWi EER Mbh kWi EER

30 1.8 86.4 8.0 10.9 85.2 8.3 10.2 80.4 8.9 9.0 75.6 9.7 7.8 70.8 10.5 6.8 35 1.8 96.0 8.1 11.8 93.6 8.4 11.1 88.8 9.1 9.8 84.0 9.8 8.5 78.0 10.6 7.4 40 1.8 105.6 8.3 12.7 103.2 8.6 12.0 97.2 9.2 10.6 92.4 10.0 9.2 86.4 10.8 8.0 45 1.8 115.2 8.4 13.7 112.8 8.7 12.9 106.8 9.4 11.4 100.8 10.1 10.0 94.8 11.0 8.7 50 1.8 126.0 8.6 14.6 123.6 8.9 13.8 117.6 9.6 12.2 110.4 10.3 10.7 104.4 11.2 9.3

010A

55 1.8 136.8 8.9 15.5 134.4 9.2 14.6 127.2 9.8 13.0 121.2 10.6 11.4 114.0 11.4 10.030 1.8 111.6 10.4 10.7 108.0 10.9 10.0 103.2 11.8 8.7 97.2 12.9 7.5 91.2 14.1 6.4 35 1.8 124.8 10.7 11.7 121.2 11.1 11.0 115.2 12.1 9.6 109.2 13.2 8.3 102.0 14.4 7.1 40 1.8 139.2 10.9 12.7 135.6 11.4 11.9 129.6 12.3 10.5 122.4 13.4 9.1 115.2 14.7 7.8 45 1.8 154.8 11.3 13.7 151.2 11.7 12.9 144.0 12.6 11.4 135.6 13.7 9.9 128.4 15.0 8.5 50 1.8 170.4 11.6 14.7 166.8 12.0 13.9 158.4 13.0 12.3 151.2 14.1 10.7 141.6 15.3 9.3

013A

55 1.8 187.2 11.9 15.7 183.6 12.4 14.8 175.2 13.3 13.1 165.6 14.4 11.5 156.0 15.7 10.030 1.8 148.8 13.6 10.9 145.2 14.2 10.2 138.0 15.5 8.9 130.8 17.0 7.7 123.6 18.5 6.6 35 1.8 164.4 13.9 11.8 159.6 14.5 11.1 152.4 15.7 9.7 144.0 17.2 8.4 135.6 18.8 7.2 40 1.8 180.0 14.1 12.8 176.4 14.7 12.0 168.0 16.0 10.5 159.6 17.5 9.1 150.0 19.1 7.8 45 1.8 198.0 14.4 13.7 193.2 15.0 12.9 184.8 16.3 11.3 175.2 17.8 9.8 164.4 19.4 8.5 50 1.8 217.2 14.7 14.7 212.4 15.3 13.8 201.6 16.6 12.1 192.0 18.1 10.6 180.0 19.7 9.1

016A

55 1.8 237.6 15.1 15.7 232.8 15.7 14.8 220.8 17.0 13.0 210.0 18.5 11.3 198.0 20.1 9.8 30 1.8 178.8 16.8 10.7 175.2 17.5 10.0 165.6 19.1 8.6 156.0 20.9 7.5 146.4 22.7 6.4 35 1.8 196.8 17.2 11.5 192.0 17.9 10.7 182.4 19.5 9.3 171.6 21.3 8.1 160.8 23.2 6.9 40 1.8 216.0 17.6 12.3 211.2 18.3 11.5 199.2 20.0 10.0 188.4 21.8 8.7 176.4 23.7 7.5 45 1.8 236.4 18.0 13.1 230.4 18.8 12.3 218.4 20.4 10.7 206.4 22.2 9.3 193.2 24.2 8.0 50 1.8 256.8 18.5 13.9 250.8 19.3 13.0 237.6 20.9 11.4 224.4 22.7 9.9 211.2 24.7 8.5

020A

55 1.8 279.6 19.0 14.7 272.4 19.8 13.8 258.0 21.4 12.0 243.6 23.3 10.5 229.2 25.3 9.1 30 2.7 232.8 21.8 10.7 228.0 22.7 10.0 216.0 24.7 8.8 202.8 26.8 7.6 189.6 29.2 6.5 35 2.7 256.8 22.3 11.5 250.8 23.2 10.8 237.6 25.2 9.4 224.4 27.4 8.2 210.0 29.8 7.0 40 2.7 282.0 22.8 12.4 274.8 23.8 11.6 261.6 25.8 10.1 246.0 28.0 8.8 230.4 30.4 7.6 45 2.7 308.4 23.4 13.2 301.2 24.3 12.4 285.6 26.3 10.8 270.0 28.6 9.4 253.2 31.1 8.2 50 2.7 337.2 24.1 14.0 328.8 25.0 13.2 312.0 27.0 11.6 294.0 29.2 10.1 276.0 31.7 8.7

025A

55 2.7 366.0 24.7 14.8 357.6 25.7 13.9 339.6 27.7 12.3 320.4 29.9 10.7 301.2 32.5 9.3 30 2.7 254.4 24.3 10.5 248.4 25.3 9.8 235.2 27.4 8.6 220.8 29.8 7.4 206.4 32.4 6.4 35 2.7 280.8 24.9 11.3 273.6 25.9 10.6 259.2 28.1 9.2 243.6 30.5 8.0 228.0 33.1 6.9 40 2.7 307.2 25.6 12.0 300.0 26.6 11.3 284.4 28.8 9.9 267.6 31.2 8.6 250.8 33.9 7.4 45 2.7 336.0 26.3 12.8 327.6 27.3 12.0 310.8 29.5 10.5 294.0 32.0 9.2 274.8 34.7 7.9 50 2.7 366.0 27.1 13.5 357.6 28.1 12.7 339.6 30.3 11.2 320.4 32.8 9.8 300.0 35.5 8.4

028A

55 2.7 398.4 27.9 14.3 388.8 28.9 13.4 368.4 31.1 11.8 348.0 33.6 10.3 326.4 36.4 9.0 30 2.7 318.0 28.0 11.4 310.8 29.3 10.6 295.2 32.1 9.2 278.4 35.1 7.9 261.6 38.3 6.8 35 2.7 350.4 28.8 12.2 342.0 30.0 11.4 324.0 32.8 9.9 306.0 35.9 8.5 288.0 39.2 7.4 40 2.7 384.0 29.5 13.0 374.4 30.8 12.2 355.2 33.7 10.6 336.0 36.7 9.2 315.6 40.1 7.9 45 2.7 418.8 30.4 13.8 409.2 31.7 12.9 388.8 34.5 11.3 367.2 37.7 9.8 345.6 41.1 8.4 50 2.7 456.0 31.3 14.6 445.2 32.6 13.7 423.6 35.5 11.9 400.8 38.7 10.4 376.8 42.1 8.9

033A

55 2.7 495.6 32.3 15.3 483.6 33.6 14.4 459.6 36.5 12.6 434.4 39.7 10.9 408.0 43.2 9.5 30 2.7 393.6 36.7 10.7 384.0 38.2 10.1 363.6 41.5 8.8 340.8 45.0 7.6 315.6 48.7 6.5 35 2.7 433.2 37.7 11.5 422.4 39.3 10.7 399.6 42.7 9.4 374.4 46.3 8.1 348.0 50.1 7.0 40 2.7 474.0 38.9 12.2 462.0 40.5 11.4 436.8 43.9 9.9 410.4 47.6 8.6 381.6 51.5 7.4 45 2.7 516.0 40.1 12.9 502.8 41.8 12.1 476.4 45.2 10.5 447.6 49.0 9.1 417.6 52.9 7.9 50 2.7 560.4 41.5 13.5 547.2 43.1 12.7 517.2 46.6 11.1 487.2 50.4 9.7 453.6 54.5 8.3

039A

55 2.7 608.4 42.9 14.2 592.8 44.6 13.3 560.4 48.1 11.6 526.8 52.0 10.1 492.0 56.1 8.8 NOTES: 1. Ratings based on HCFC-22, and sea level altitude. 2. Interpolation is allowed; extrapolation is not permitted. Consult McQuay for performance outside the cataloged ratings. 3. KWi and EER are for the entire unit, including compressors, fan motors and control power. 4. Shaded ratings are ARI Standard 365-2002 standard rating of 95°F ambient air temperature and 45°F suction with 15 degrees superheat.


Table 3, ACZ 030B through 065B Ambient Air Temperature (°F)

75 85 95 105 115 Unit PWR Unit Unit PWR Unit Unit PWR Unit Unit PWR Unit Unit PWR Unit

ACZ Unit Size

Fan & Control Power (kW)

Sat. Suct. Temp.

(°F) Mbh kWi EER Mbh kWi EER Mbh kWi EER Mbh kWi EER Mbh kWi EER 30 306 27.2 11.2 290 29.7 9.8 276 32.6 8.5 261 35.9 7.3 243 39.5 6.2 35 338 27.6 12.2 321 30.2 10.6 305 33.1 9.2 288 36.4 7.9 270 40.1 6.7 40 372 28.1 13.3 354 30.6 11.6 337 33.6 10.0 318 36.9 8.6 298 40.7 7.3 45 410 28.6 14.3 391 31.2 12.5 371 34.2 10.9 351 37.6 9.3 328 41.3 7.9 50 451 29.2 15.5 430 31.8 13.5 409 34.9 11.7 386 38.3 10.1 361 42.0 8.6

030B 5.6

55 496 29.9 16.6 473 32.6 14.5 449 35.6 12.6 425 39.1 10.9 397 42.9 9.3 30 341 30.0 11.3 323 32.9 9.8 306 36.2 8.5 288 39.8 7.2 269 43.9 6.1 35 376 30.5 12.3 357 33.5 10.7 339 36.8 9.2 319 40.5 7.9 298 44.6 6.7 40 415 31.1 13.3 394 34.1 11.6 373 37.5 10.0 352 41.2 8.5 329 45.4 7.2 45 456 31.8 14.4 433 34.8 12.5 411 38.2 10.8 387 42.0 9.2 362 46.2 7.8 50 500 32.5 15.4 476 35.5 13.4 451 39.0 11.6 425 42.9 9.9 398 47.2 8.4

035B 5.6

55 548 33.3 16.5 522 36.4 14.3 495 39.9 12.4 466 43.8 10.6 437 48.2 9.1 30 376 32.8 11.4 357 36.1 9.9 337 39.8 8.5 316 43.8 7.2 295 48.2 6.1 35 415 33.5 12.4 394 36.8 10.7 372 40.5 9.2 349 44.6 7.8 326 49.1 6.6 40 457 34.2 13.4 434 37.6 11.5 410 41.3 9.9 385 45.5 8.5 360 50.1 7.2 45 502 34.9 14.4 476 38.4 12.4 450 42.2 10.7 424 46.5 9.1 397 51.2 7.7 50 550 35.8 15.4 522 39.3 13.3 494 43.2 11.4 465 47.5 9.8 435 52.3 8.3

040B 5.6

55 601 36.7 16.4 571 40.2 14.2 540 44.2 12.2 508 48.6 10.5 476 53.5 8.9 30 436 37.4 11.7 414 41.1 10.1 391 45.2 8.7 367 49.7 7.4 343 54.6 6.3 35 482 38.0 12.7 458 41.8 11.0 433 45.9 9.4 407 50.5 8.1 380 55.6 6.8 40 531 38.7 13.7 504 42.5 11.9 477 46.7 10.2 449 51.4 8.7 420 56.5 7.4 45 583 39.4 14.8 554 43.3 12.8 524 47.5 11.0 493 52.3 9.4 462 57.5 8.0 50 639 40.3 15.9 607 44.1 13.8 575 48.5 11.9 541 53.3 10.2 507 58.6 8.7

045B 5.6

55 699 41.2 17.0 664 45.1 14.7 629 49.5 12.7 592 54.3 10.9 555 59.8 9.3 30 484 42.5 11.4 460 46.7 9.9 434 51.3 8.5 406 56.4 7.2 376 62.0 6.1 35 535 43.4 12.3 508 47.6 10.7 480 52.3 9.2 449 57.5 7.8 417 63.3 6.6 40 589 44.3 13.3 560 48.5 11.5 529 53.3 9.9 496 58.7 8.5 461 64.6 7.1 45 647 45.3 14.3 615 49.6 12.4 581 54.4 10.7 546 59.9 9.1 508 65.9 7.7 50 708 46.3 15.3 673 50.7 13.3 637 55.6 11.4 598 61.2 9.8 558 67.4 8.3

050B 5.6

55 774 47.5 16.3 736 51.9 14.2 696 56.9 12.2 654 62.6 10.5 611 68.9 8.9 30 534 45.7 11.7 509 50.1 10.2 480 55.0 8.7 449 60.5 7.4 415 66.6 6.2 35 590 46.6 12.7 562 51.0 11.0 531 56.0 9.5 498 61.6 8.1 462 67.8 6.8 40 650 47.5 13.7 619 51.9 11.9 586 57.0 10.3 550 62.7 8.8 511 69.1 7.4 45 714 48.5 14.7 680 52.9 12.8 643 58.0 11.1 605 63.9 9.5 563 70.4 8.0 50 783 49.6 15.8 745 54.0 13.8 705 59.2 11.9 663 65.1 10.2 619 71.7 8.6

055B 5.7

55 856 50.8 16.9 814 55.2 14.7 771 60.4 12.8 726 66.4 10.9 678 73.2 9.3 30 593 50.8 11.7 564 55.8 10.1 534 61.5 8.7 501 67.7 7.4 466 74.5 6.3 35 655 51.9 12.6 623 57.0 10.9 590 62.7 9.4 554 69.1 8.0 516 76.1 6.8 40 720 53.1 13.6 686 58.3 11.8 649 64.1 10.1 611 70.6 8.6 570 77.8 7.3 45 791 54.4 14.5 753 59.7 12.6 713 65.6 10.9 671 72.2 9.3 627 79.6 7.9 50 866 55.9 15.5 824 61.2 13.5 781 67.2 11.6 735 74.0 9.9 687 81.5 8.4

060B 5.7

55 945 57.5 16.4 900 62.8 14.3 853 69.0 12.4 803 75.8 10.6 752 83.5 9.0 30 652 55.8 11.7 620 61.6 10.1 587 67.9 8.6 552 74.9 7.4 517 82.4 6.3 35 719 57.2 12.6 684 63.0 10.9 648 69.5 9.3 610 76.7 8.0 571 84.4 6.8 40 791 58.7 13.5 753 64.6 11.6 713 71.3 10.0 671 78.6 8.5 629 86.6 7.3 45 867 60.4 14.4 826 66.4 12.4 783 73.2 10.7 737 80.6 9.1 690 88.8 7.8 50 949 62.2 15.3 904 68.3 13.2 856 75.2 11.4 807 82.9 9.7 756 91.2 8.3

065B 5.7

55 1034 64.2 16.1 986 70.5 14.0 935 77.5 12.1 881 85.3 10.3 826 93.8 8.8 NOTES: 1. Ratings based on HCFC-22 and sea level altitude. 2. Interpolation is allowed; extrapolation is not permitted. Consult McQuay for performance outside the cataloged ratings. 3. KWi and EER are for the entire unit, including compressors, fan motors and control power. 4. Shaded ratings are ARI Standard 365-2002 standard rating of 95°F ambient air temperature and 45°F suction with 15 degrees

superheat.


Table 4, ACZ 070B through 155B Ambient Air Temperature (°F)

75 85 95 105 115 Unit PWR Unit Unit PWR Unit Unit PWR Unit Unit PWR Unit Unit PWR Unit

ACZ Unit Size


Sat. Suct. Temp.

(°F) Mbh kWi EER Mbh kWi EER Mbh kWi EER Mbh kWi EER Mbh kWi EER 35 773 61.8 12.5 736 67.8 10.9 697 74.5 9.4 656 81.9 8.0 613 90.2 6.8 40 851 63.4 13.4 810 69.5 11.7 768 76.3 10.1 723 84.0 8.6 677 92.4 7.3 45 934 65.3 14.3 890 71.4 12.5 844 78.4 10.8 795 86.2 9.2 745 94.8 7.9 50 1022 67.3 15.2 974 73.5 13.3 924 80.6 11.5 872 88.6 9.8 817 97.4 8.4

070B 7.3

55 1117 69.5 16.1 1065 75.8 14.0 1011 83.1 12.2 954 91.2 10.5 894 100.2 8.9 30 748 65.8 11.4 711 72.1 9.9 672 79.2 8.5 631 87.1 7.2 587 96.0 6.1 35 825 67.6 12.2 784 74.1 10.6 742 81.3 9.1 698 89.4 7.8 651 98.5 6.6 40 907 69.6 13.0 864 76.2 11.3 818 83.6 9.8 770 91.9 8.4 719 101.2 7.1 45 997 71.8 13.9 949 78.5 12.1 899 86.1 10.4 847 94.6 9.0 792 104.1 7.6 50 1092 74.2 14.7 1040 81.1 12.8 986 88.8 11.1 930 97.5 9.5 870 107.2 8.1

080B 7.3

55 1195 76.9 15.5 1138 83.9 13.6 1080 91.7 11.8 1018 100.6 10.1 954 110.6 8.6 30 850 73.3 11.6 810 79.7 10.2 767 86.9 8.8 721 95.2 7.6 672 104.6 6.4 35 938 75.2 12.5 894 81.6 11.0 848 88.9 9.5 799 97.3 8.2 747 106.9 7.0 40 1034 77.1 13.4 986 83.6 11.8 936 91.1 10.3 883 99.6 8.9 827 109.3 7.6 45 1137 79.2 14.4 1085 85.8 12.6 1030 93.4 11.0 973 102.0 9.5 913 111.8 8.2 50 1250 81.5 15.3 1192 88.2 13.5 1133 95.9 11.8 1071 104.6 10.2 1006 114.6 8.8

090B 10.9

55 1372 84.0 16.3 1308 90.8 14.4 1243 98.6 12.6 1176 107.5 10.9 1106 117.6 9.4 30 937 80.2 11.7 891 87.2 10.2 844 95.1 8.9 794 103.9 7.6 743 113.8 6.5 35 1034 82.3 12.6 984 89.4 11.0 933 97.4 9.6 879 106.4 8.3 824 116.6 7.1 40 1138 84.6 13.5 1084 91.7 11.8 1029 99.8 10.3 971 109.0 8.9 911 119.5 7.6 45 1251 87.1 14.4 1192 94.3 12.7 1132 102.5 11.0 1070 111.9 9.6 1005 122.6 8.2 50 1372 89.9 15.3 1309 97.1 13.5 1243 105.4 11.8 1176 115.0 10.2 1106 125.9 8.8

100B 10.9

55 1502 92.9 16.2 1434 100.1 14.3 1363 108.6 12.6 1290 118.3 10.9 1215 129.5 9.4 30 1024 87.0 11.8 973 94.7 10.3 920 103.2 8.9 867 112.6 7.7 814 123.1 6.6 35 1129 89.4 12.6 1074 97.1 11.1 1017 105.8 9.6 959 115.5 8.3 901 126.3 7.1 40 1243 92.1 13.5 1183 99.8 11.9 1121 108.6 10.3 1059 118.5 8.9 996 129.7 7.7 45 1364 95.0 14.4 1300 102.7 12.7 1234 111.6 11.1 1166 121.8 9.6 1097 133.3 8.2 50 1494 98.3 15.2 1426 105.9 13.5 1354 114.9 11.8 1281 125.3 10.2 1207 137.2 8.8

110B 10.9

55 1633 101.8 16.0 1560 109.5 14.2 1483 118.6 12.5 1404 129.2 10.9 1324 141.3 9.4 30 1131 96.6 11.7 1077 105.5 10.2 1019 115.5 8.8 959 126.9 7.6 895 139.5 6.4 35 1247 98.8 12.6 1189 107.8 11.0 1127 118.0 9.5 1061 129.5 8.2 992 142.5 7.0 40 1373 101.3 13.6 1309 110.3 11.9 1242 120.7 10.3 1171 132.4 8.8 1097 145.6 7.5 45 1508 103.9 14.5 1439 113.1 12.7 1366 123.6 11.1 1290 135.5 9.5 1209 148.9 8.1 50 1653 106.8 15.5 1578 116.1 13.6 1499 126.7 11.8 1416 138.8 10.2 1329 152.5 8.7

120B 14.5

55 1809 110.0 16.4 1727 119.4 14.5 1641 130.2 12.6 1552 142.5 10.9 1458 156.4 9.3 30 1273 110.5 11.5 1212 120.4 10.1 1147 131.6 8.7 1076 144.4 7.5 1000 159.1 6.3 35 1404 113.6 12.4 1338 123.6 10.8 1268 135.0 9.4 1193 148.0 8.1 1112 162.9 6.8 40 1547 116.8 13.2 1474 127.0 11.6 1398 138.6 10.1 1318 151.9 8.7 1232 167.0 7.4 45 1701 120.4 14.1 1622 130.8 12.4 1539 142.6 10.8 1453 156.1 9.3 1361 171.5 7.9 50 1869 124.3 15.0 1782 134.8 13.2 1692 146.9 11.5 1598 160.6 9.9 1499 176.3 8.5

130B 14.5

55 2050 128.5 16.0 1954 139.2 14.0 1856 151.6 12.2 1754 165.6 10.6 1647 181.6 9.1 30 1402 121.5 11.5 1332 132.3 10.1 1260 144.5 8.7 1185 158.3 7.5 1108 173.6 6.4 35 1546 125.0 12.4 1471 136.0 10.8 1393 148.5 9.4 1312 162.6 8.1 1229 178.4 6.9 40 1702 128.9 13.2 1621 140.0 11.6 1536 152.7 10.1 1449 167.2 8.7 1359 183.5 7.4 45 1870 133.1 14.1 1782 144.4 12.3 1690 157.4 10.7 1596 172.2 9.3 1499 188.9 7.9 50 2051 137.7 14.9 1955 149.2 13.1 1856 162.4 11.4 1754 177.6 9.9 1650 194.8 8.5

140B 14.5

55 2246 142.8 15.7 2142 154.5 13.9 2034 168.0 12.1 1924 183.5 10.5 1812 201.2 9.0 30 1531 132.4 11.6 1453 144.3 10.1 1374 157.5 8.7 1294 172.1 7.5 1216 188.2 6.5 35 1688 136.4 12.4 1604 148.5 10.8 1518 162.0 9.4 1432 177.1 8.1 1346 193.9 6.9 40 1858 140.9 13.2 1767 153.0 11.5 1674 166.8 10.0 1580 182.4 8.7 1486 199.9 7.4 45 2039 145.7 14.0 1942 158.0 12.3 1841 172.2 10.7 1740 188.2 9.2 1638 206.3 7.9 50 2234 151.1 14.8 2129 163.5 13.0 2021 178.0 11.4 1911 194.5 9.8 1801 213.3 8.4

155B 14.5

55 2442 157.1 15.5 2329 169.7 13.7 2213 184.4 12.0 2095 201.4 10.4 1976 220.8 8.9 NOTES: 1. Ratings based on HCFC-22 and sea level altitude. 2. Interpolation is allowed; extrapolation is not permitted. Consult McQuay for performance outside the cataloged ratings. 3. KWi and EER are for the entire unit, including compressors, fan motors and control power. 4. Shaded ratings are ARI Standard 365-2002 standard rating of 95°F ambient air temperature and 45°F suction with 15 degrees

superheat.


SI Units Table 5, ACZ 010A - ACZ 039A

Ambient Air Temperature (°C)24°C 30°C 35°C 41°C 47°C

Unit PWR Unit Unit PWR Unit Unit PWR Unit Unit PWR Unit Unit PWR Unit

ACZ Unit Size

Sat Suct. Temp (°C)

Fan & Control Power (kW) kW kWi COP kW kWi COP kW kWi COP kW kWi COP kW kWi COP

-1 1.8 26.1 7.7 3.4 24.8 8.4 3.0 23.6 8.9 2.6 22.1 9.7 2.3 20.6 10.6 1.9 2 1.8 29.0 7.9 3.7 27.6 8.5 3.2 26.3 9.1 2.9 24.7 9.9 2.5 23.0 10.8 2.1 5 1.8 32.1 8.0 4.0 30.6 8.7 3.5 29.1 9.3 3.1 27.4 10.1 2.7 25.6 11.0 2.3 8 1.8 35.4 8.2 4.3 33.7 8.9 3.8 32.2 9.5 3.4 30.3 10.3 3.0 28.4 11.2 2.5 11 1.8 38.9 8.5 4.6 37.1 9.1 4.1 35.4 9.7 3.7 33.4 10.5 3.2 31.3 11.4 2.7

010A

13 1.8 41.4 8.6 4.8 39.4 9.2 4.3 37.7 9.8 3.8 35.5 10.7 3.3 33.3 11.6 2.9 -1 1.8 33.5 10.0 3.3 31.8 11.0 2.9 30.3 11.8 2.6 28.5 13.0 2.2 26.5 14.4 1.8 2 1.8 37.9 10.3 3.7 36.0 11.2 3.2 34.4 12.1 2.8 32.4 13.3 2.4 30.1 14.7 2.1 5 1.8 42.6 10.6 4.0 40.5 11.5 3.5 38.7 12.4 3.1 36.5 13.6 2.7 34.1 15.0 2.3 8 1.8 47.6 11.0 4.3 45.3 11.9 3.8 43.4 12.7 3.4 40.9 13.9 2.9 38.2 15.3 2.5 11 1.8 52.9 11.3 4.7 50.4 12.2 4.1 48.2 13.1 3.7 45.5 14.3 3.2 42.7 15.7 2.7

013A

13 1.8 56.5 11.6 4.9 53.9 12.5 4.3 51.6 13.3 3.9 48.7 14.5 3.4 45.7 15.9 2.9 -1 1.8 44.8 13.1 3.4 42.4 14.4 3.0 40.6 15.5 2.6 38.3 17.1 2.2 35.8 18.8 1.9 2 1.8 49.8 13.4 3.7 47.2 14.6 3.2 45.2 15.8 2.9 42.6 17.4 2.5 39.9 19.1 2.1 5 1.8 55.1 13.7 4.0 52.4 14.9 3.5 50.1 16.1 3.1 47.3 17.7 2.7 44.3 19.4 2.3 8 1.8 61.0 14.0 4.4 57.9 15.2 3.8 55.5 16.4 3.4 52.4 18.0 2.9 49.0 19.8 2.5 11 1.8 67.3 14.3 4.7 64.0 15.6 4.1 61.2 16.8 3.6 57.8 18.4 3.1 54.1 20.2 2.7

016A

13 1.8 71.7 14.6 4.9 68.2 15.9 4.3 65.3 17.0 3.8 61.6 18.7 3.3 57.6 20.4 2.8 -1 1.8 54.0 16.1 3.3 51.1 17.7 2.9 48.7 19.1 2.5 45.6 21.0 2.2 42.5 23.1 1.8 2 1.8 59.8 16.5 3.6 56.7 18.1 3.1 54.0 19.6 2.8 50.7 21.5 2.4 47.3 23.6 2.0 5 1.8 66.1 17.0 3.9 62.6 18.6 3.4 59.6 20.1 3.0 56.0 22.0 2.5 52.3 24.1 2.2 8 1.8 72.6 17.5 4.2 68.8 19.1 3.6 65.6 20.6 3.2 61.6 22.5 2.7 57.5 24.7 2.3 11 1.8 79.6 18.0 4.4 75.4 19.6 3.8 71.9 21.1 3.4 67.5 23.1 2.9 63.1 25.3 2.5

020A

13 1.8 84.4 18.3 4.6 80.0 20.0 4.0 76.2 21.5 3.5 71.6 23.5 3.0 66.9 25.7 2.6 -1 2.7 70.2 21.0 3.3 66.6 22.9 2.9 63.5 24.7 2.6 59.5 27.0 2.2 55.2 29.6 1.9 2 2.7 77.9 21.5 3.6 74.0 23.5 3.2 70.5 25.3 2.8 66.1 27.6 2.4 61.5 30.3 2.0 5 2.7 86.2 22.1 3.9 81.8 24.1 3.4 78.0 25.9 3.0 73.2 28.3 2.6 68.2 31.0 2.2 8 2.7 94.9 22.8 4.2 90.1 24.7 3.6 85.9 26.5 3.2 80.7 29.0 2.8 75.3 31.7 2.4 11 2.7 104. 23.5 4.4 98.8 25.4 3.9 94.3 27.2 3.5 88.6 29.7 3.0 82.7 32.4 2.6

025A

13 2.7 110. 24.0 4.6 104.9 25.9 4.1 100.0 27.7 3.6 94.0 30.2 3.1 87.8 32.9 2.7 -1 2.7 76.7 23.4 3.3 72.8 25.5 2.9 69.3 27.5 2.5 64.7 30.0 2.2 59.8 32.8 1.8 2 2.7 85.0 24.1 3.5 80.7 26.2 3.1 76.9 28.2 2.7 72.0 30.8 2.3 66.7 33.7 2.0 5 2.7 93.9 24.8 3.8 89.2 26.9 3.3 85.0 28.9 2.9 79.7 31.6 2.5 74.0 34.5 2.1 8 2.7 103. 25.6 4.0 98.1 27.7 3.5 93.5 29.7 3.1 87.7 32.4 2.7 81.6 35.4 2.3 11 2.7 113. 26.5 4.3 107.5 28.6 3.8 102.5 30.6 3.3 96.2 33.3 2.9 89.6 36.3 2.5

028A

13 2.7 120. 27.1 4.4 113.9 29.2 3.9 108.6 31.2 3.5 102.0 33.9 3.0 95.1 36.9 2.6 -1 2.7 95.8 26.9 3.6 90.9 29.6 3.1 86.7 32.1 2.7 81.6 35.3 2.3 76.3 38.8 2.0 2 2.7 106. 27.7 3.8 100.8 30.4 3.3 96.2 32.9 2.9 90.5 36.2 2.5 84.6 39.8 2.1 5 2.7 117. 28.5 4.1 111.3 31.3 3.6 106.2 33.8 3.1 99.9 37.2 2.7 93.4 40.8 2.3 8 2.7 128. 29.4 4.4 122.3 32.2 3.8 116.8 34.8 3.4 109.9 38.2 2.9 102.7 41.9 2.5 11 2.7 140. 30.4 4.6 133.9 33.2 4.0 127.9 35.9 3.6 120.3 39.3 3.1 112.5 43.1 2.6

033A

13 2.7 149. 31.2 4.8 141.9 34.0 4.2 135.5 36.6 3.7 127.5 40.1 3.2 119.2 43.9 2.7 -1 2.7 118. 35.3 3.4 112.5 38.6 2.9 107.0 41.6 2.6 99.7 45.4 2.2 91.7 49.3 1.9 2 2.7 131. 36.4 3.6 124.4 39.8 3.1 118.4 42.8 2.8 110.5 46.7 2.4 101.9 50.8 2.0 5 2.7 144. 37.7 3.8 137.0 41.1 3.3 130.4 44.2 2.9 121.8 48.2 2.5 112.6 52.4 2.1 8 2.7 158. 39.0 4.1 150.3 42.5 3.5 143.0 45.6 3.1 133.7 49.7 2.7 123.8 54.0 2.3 11 2.7 173. 40.5 4.3 164.2 44.0 3.7 156.2 47.2 3.3 146.1 51.3 2.8 135.4 55.7 2.4

039A

13 2.7 183. 41.5 4.4 173.8 45.0 3.9 165.3 48.2 3.4 154.6 52.4 3.0 143.4 56.9 2.5 NOTES: 1. Ratings based on HCFC-22 and sea level altitude. 2. Interpolation is allowed; extrapolation is not permitted. Consult McQuay for performance outside the cataloged ratings. 3. KWi and COP are for the entire unit, including compressors, fan motors and control power.


Table 6, ACZ 030B - ACZ 065B

Ambient Air Temperature (°C) 25 30 35 40 45


ACZ Unit Size


Sat Suct. Temp (°C) KW kWi COP KW kWi COP KW kWi COP KW kWi COP KW kWi COP-1.0 89.1 27.7 3.2 85.0 30.0 2.8 81.1 32.6 2.5 77.1 35.6 2.2 72.7 38.8 1.9 2.0 99.2 28.2 3.5 94.8 30.5 3.1 90.5 33.1 2.7 86.1 36.1 2.4 81.1 39.4 2.1 5.0 110.2 28.7 3.9 105.4 31.0 3.4 100.7 33.7 3.0 95.8 36.7 2.6 90.3 40.0 2.3 8.0 122.3 29.3 4.2 117.1 31.7 3.7 111.9 34.4 3.3 106.4 37.4 2.9 100.3 40.8 2.5 11.0 135.6 30.0 4.5 129.9 32.4 4.0 124.1 35.1 3.5 117.9 38.2 3.1 111.2 41.6 2.7

030B 5.6

13.0 144.9 30.5 4.8 138.8 32.9 4.2 132.7 35.7 3.7 126.1 38.8 3.3 118.9 42.2 2.8 -1.0 99.2 30.6 3.3 94.7 33.3 2.9 90.1 36.2 2.5 85.3 39.5 2.2 80.3 43.1 1.9 2.0 110.5 31.2 3.6 105.5 33.9 3.1 100.4 36.9 2.7 95.2 40.2 2.4 89.7 43.9 2.1 5.0 122.7 31.8 3.9 117.2 34.6 3.4 111.6 37.6 3.0 105.8 41.0 2.6 99.7 44.7 2.2 8.0 135.9 32.6 4.2 129.8 35.3 3.7 123.7 38.4 3.2 117.4 41.9 2.8 110.6 45.6 2.4 11.0 150.2 33.4 4.5 143.6 36.2 4.0 136.8 39.3 3.5 129.8 42.8 3.0 122.4 46.7 2.6

035B 5.6

13.0 160.2 34.0 4.7 153.1 36.8 4.2 146.0 40.0 3.7 138.5 43.5 3.2 130.6 47.4 2.8 -1.0 109.4 33.5 3.3 104.3 36.5 2.9 99.0 39.8 2.5 93.6 43.4 2.2 87.9 47.3 1.9 2.0 121.8 34.2 3.6 116.2 37.3 3.1 110.4 40.6 2.7 104.3 44.3 2.4 98.2 48.3 2.0 5.0 135.1 35.0 3.9 128.9 38.1 3.4 122.5 41.5 3.0 115.9 45.3 2.6 109.2 49.4 2.2 8.0 149.4 35.9 4.2 142.6 39.0 3.7 135.5 42.5 3.2 128.3 46.3 2.8 121.0 50.5 2.4 11.0 164.8 36.8 4.5 157.2 40.0 3.9 149.5 43.5 3.4 141.6 47.5 3.0 133.6 51.8 2.6

040B 5.6

13.0 175.5 37.5 4.7 167.4 40.7 4.1 159.2 44.3 3.6 150.9 48.3 3.1 142.4 52.6 2.7 -1.0 127.1 38.2 3.3 121.2 41.5 2.9 115.2 45.2 2.6 108.8 49.3 2.2 102.4 53.7 1.9 2.0 141.5 38.9 3.7 135.0 42.3 3.2 128.3 46.0 2.8 121.4 50.2 2.4 114.3 54.7 2.1 5.0 157.0 39.6 4.0 149.9 43.1 3.5 142.5 46.9 3.0 134.9 51.1 2.6 127.2 55.7 2.3 8.0 173.7 40.4 4.3 165.9 43.9 3.8 157.8 47.8 3.3 149.4 52.1 2.9 141.0 56.8 2.5 11.0 191.7 41.4 4.6 183.0 44.9 4.1 174.1 48.8 3.6 165.0 53.2 3.1 155.7 58.0 2.7

045B 5.6

13.0 204.2 42.0 4.9 194.9 45.6 4.3 185.5 49.5 3.7 175.8 53.9 3.3 166.0 58.8 2.8 -1.0 141.1 43.4 3.3 134.6 47.2 2.9 127.7 51.3 2.5 120.2 55.9 2.2 112.3 60.9 1.9 2.0 157.1 44.3 3.6 149.9 48.2 3.1 142.3 52.4 2.7 134.3 57.1 2.4 125.7 62.3 2.0 5.0 174.2 45.3 3.9 166.3 49.2 3.4 158.0 53.5 3.0 149.2 58.4 2.6 140.0 63.7 2.2 8.0 192.7 46.4 4.2 183.9 50.4 3.7 174.8 54.8 3.2 165.3 59.7 2.8 155.3 65.1 2.4 11.0 212.5 47.6 4.5 202.8 51.6 3.9 192.8 56.1 3.4 182.4 61.1 3.0 171.6 66.7 2.6

050B 5.6

13.0 226.2 48.5 4.7 215.9 52.5 4.1 205.3 57.0 3.6 194.3 62.1 3.1 182.9 67.8 2.7 -1.0 155.6 46.6 3.3 148.8 50.6 2.9 141.4 55.0 2.6 133.2 60.0 2.2 124.2 65.4 1.9 2.0 173.3 47.6 3.7 165.8 51.6 3.2 157.6 56.1 2.8 148.8 61.1 2.4 139.2 66.7 2.1 5.0 192.3 48.6 4.0 183.9 52.6 3.5 175.0 57.2 3.1 165.4 62.3 2.7 155.1 68.1 2.3 8.0 212.8 49.7 4.3 203.5 53.7 3.8 193.6 58.4 3.3 183.2 63.6 2.9 172.1 69.5 2.5 11.0 234.8 50.9 4.6 224.4 55.0 4.1 213.6 59.6 3.6 202.2 65.0 3.1 190.3 70.9 2.7

055B 5.7

13.0 250.1 51.7 4.8 238.9 55.8 4.3 227.4 60.5 3.8 215.4 65.9 3.3 202.8 71.9 2.8 -1.0 172.9 51.8 3.3 165.2 56.4 2.9 157.0 61.5 2.6 148.4 67.1 2.2 139.2 73.2 1.9 2.0 192.3 53.1 3.6 183.8 57.7 3.2 174.9 62.9 2.8 165.4 68.7 2.4 155.4 74.9 2.1 5.0 213.2 54.4 3.9 203.8 59.1 3.5 194.0 64.4 3.0 183.6 70.3 2.6 172.8 76.7 2.3 8.0 235.6 55.9 4.2 225.3 60.7 3.7 214.5 66.0 3.3 203.2 72.1 2.8 191.3 78.6 2.4 11.0 259.6 57.5 4.5 248.2 62.4 4.0 236.4 67.8 3.5 224.1 74.0 3.0 211.1 80.7 2.6

060B 5.7

13.0 276.2 58.7 4.7 264.2 63.6 4.2 251.6 69.1 3.6 238.5 75.3 3.2 224.9 82.1 2.8 -1.0 190.1 57.0 3.3 181.5 62.3 2.9 172.7 68.0 2.5 163.6 74.2 2.2 154.2 81.0 1.9 2.0 211.3 58.5 3.6 201.9 63.9 3.2 192.1 69.7 2.8 182.0 76.2 2.4 171.6 83.1 2.1 5.0 234.0 60.2 3.9 223.7 65.7 3.4 213.0 71.7 3.0 201.9 78.3 2.6 190.4 85.4 2.2 8.0 258.4 62.1 4.2 247.1 67.6 3.7 235.4 73.7 3.2 223.2 80.5 2.8 210.5 87.8 2.4 11.0 284.3 64.2 4.4 272.1 69.8 3.9 259.3 76.0 3.4 245.9 83.0 3.0 232.0 90.5 2.6

065B 5.7

13.0 302.3 65.6 4.6 289.4 71.3 4.06 275.8 77.7 3.55 261.6 84.7 3.09 246.9 92.3 2.68NOTES: 1. Ratings based on HCFC-22 and sea level altitude. 2. Interpolation is allowed; extrapolation is not permitted. Consult McQuay for performance outside the cataloged ratings. 3. KWi and COP are for the entire unit, including compressors, fan motors and control power.


Table 7, ACZ 070B - 155B

Ambient Air Temperature (°C) 25 30 35 40 45


ACZ Unit Size


Sat Suct. Temp (°C) KW kWi COP KW kWi COP KW kWi COP KW kWi COP KW kWi COP-1.0 204.4 61.5 3.3 195.2 66.9 2.9 185.7 72.8 2.6 175.8 79.4 2.2 165.4 86.6 1.9 2.0 227.2 63.2 3.6 217.2 68.6 3.2 206.7 74.7 2.8 195.8 81.4 2.4 184.5 88.8 2.1 5.0 251.8 65.0 3.9 240.8 70.6 3.4 229.4 76.7 3.0 217.5 83.6 2.6 205.1 91.2 2.3 8.0 278.3 67.1 4.2 266.3 72.7 3.7 253.8 79.0 3.2 240.8 86.1 2.8 227.2 93.8 2.4

11.0 306.7 69.3 4.4 293.6 75.1 3.9 280.0 81.5 3.4 265.7 88.7 3.0 250.9 96.6 2.6

070B 7.3

13.0 326.4 70.9 4.6 312.6 76.7 4.1 298.2 83.3 3.6 283.1 90.6 3.1 267.4 98.6 2.7 -1.0 217.8 67.1 3.3 208.0 72.9 2.9 197.7 79.3 2.5 186.8 86.4 2.2 175.3 94.3 1.9 2.0 242.2 69.2 3.5 231.4 75.0 3.1 220.2 81.6 2.7 208.3 88.9 2.4 195.8 97.0 2.0 5.0 268.5 71.4 3.8 256.8 77.4 3.3 244.5 84.1 2.9 231.6 91.6 2.5 218.0 99.9 2.2 8.0 297.0 73.9 4.0 284.1 80.0 3.6 270.7 86.8 3.1 256.6 94.5 2.7 241.8 103.0 2.4

11.0 327.8 76.6 4.3 313.6 82.8 3.8 298.9 89.8 3.3 283.5 97.7 2.9 267.5 106.4 2.5

080B 7.3

13.0 349.2 78.5 4.5 334.2 84.9 3.9 318.6 92.0 3.5 302.3 100.0 3.0 285.3 108.8 2.6 -1.0 247.9 74.7 3.3 237.1 80.5 3.0 225.8 87.0 2.6 213.7 94.4 2.3 200.7 102.8 2.0 2.0 275.8 76.7 3.6 263.9 82.6 3.2 251.7 89.2 2.8 238.6 96.7 2.5 224.7 105.2 2.1 5.0 306.2 78.8 3.9 293.2 84.8 3.5 279.8 91.5 3.1 265.6 99.2 2.7 250.7 107.8 2.3 8.0 339.4 81.2 4.2 325.0 87.3 3.7 310.3 94.1 3.3 295.0 101.9 2.9 278.8 110.6 2.5

11.0 375.6 83.7 4.5 359.7 89.9 4.0 343.6 96.8 3.6 326.8 104.8 3.1 309.2 113.7 2.7

090B 10.9

13.0 401.0 85.5 4.7 384.1 91.8 4.2 366.9 98.8 3.7 349.1 106.8 3.3 330.5 115.8 2.9 -1.0 273.1 81.7 3.4 260.9 88.1 3.0 248.3 95.2 2.6 235.2 103.1 2.3 221.7 112.0 2.0 2.0 303.7 84.0 3.6 290.4 90.4 3.2 276.7 97.6 2.8 262.4 105.8 2.5 247.8 114.9 2.2 5.0 337.0 86.5 3.9 322.5 93.0 3.5 307.5 100.3 3.1 292.0 108.7 2.7 276.1 118.0 2.3 8.0 373.0 89.3 4.2 357.2 95.9 3.7 340.9 103.3 3.3 324.0 111.8 2.9 306.7 121.3 2.5

11.0 412.0 92.4 4.5 394.8 99.0 4.0 377.0 106.5 3.5 358.7 115.2 3.1 339.9 125.0 2.7

100B 10.9

13.0 439.3 94.6 4.7 421.0 101.2 4.2 402.2 108.8 3.7 382.9 117.6 3.3 363.0 127.5 2.9 -1.0 298.3 88.6 3.4 284.7 95.6 3.0 270.8 103.3 2.6 256.6 111.8 2.3 242.7 121.1 2.0 2.0 331.7 91.3 3.6 317.0 98.3 3.2 301.7 106.1 2.8 286.3 114.9 2.5 270.8 124.5 2.2 5.0 367.8 94.2 3.9 351.8 101.2 3.5 335.2 109.2 3.1 318.4 118.2 2.7 301.5 128.2 2.4 8.0 406.7 97.5 4.2 389.3 104.5 3.7 371.4 112.5 3.3 353.1 121.7 2.9 334.7 132.1 2.5

11.0 448.5 101.1 4.4 429.8 108.1 4.0 410.4 116.3 3.5 390.5 125.7 3.1 370.5 136.3 2.7

110B 10.9

13.0 477.6 103.7 4.6 457.9 110.7 4.1 437.6 118.9 3.7 416.7 128.5 3.3 395.5 139.2 2.9 -1.0 329.6 98.5 3.4 315.1 106.6 3.0 300.0 115.6 2.6 284.0 125.8 2.3 267.2 137.1 2.0 2.0 366.5 100.9 3.6 350.7 109.1 3.2 334.2 118.3 2.8 316.9 128.7 2.5 298.6 140.2 2.1 5.0 406.5 103.6 3.9 389.2 111.9 3.5 371.2 121.3 3.1 352.3 131.8 2.7 332.5 143.6 2.3 8.0 449.7 106.6 4.2 430.8 115.0 3.8 411.2 124.5 3.3 390.6 135.2 2.9 369.0 147.2 2.5

11.0 496.3 109.8 4.5 475.7 118.4 4.0 454.3 128.0 3.6 431.8 138.9 3.1 408.4 151.1 2.7

120B 14.5

13.0 528.9 112.1 4.7 507.0 120.8 4.2 484.3 130.5 3.7 460.6 141.6 3.3 435.8 153.9 2.8 -1.0 371.0 112.6 3.3 354.7 121.6 2.9 337.4 131.7 2.6 318.9 143.3 2.2 299.0 156.3 1.9 2.0 412.6 116.0 3.6 394.8 125.1 3.2 376.1 135.4 2.8 356.2 147.2 2.4 334.9 160.4 2.1 5.0 458.1 119.6 3.8 438.4 128.9 3.4 418.1 139.4 3.0 396.5 151.4 2.6 373.7 164.9 2.3 8.0 507.6 123.6 4.1 486.0 133.1 3.7 463.7 143.8 3.2 440.2 156.0 2.8 415.6 169.8 2.5

11.0 561.5 127.9 4.4 537.6 137.6 3.9 513.2 148.6 3.5 487.6 161.0 3.0 460.9 175.1 2.6

130B 14.5

13.0 599.3 131.0 4.6 573.9 140.8 4.1 547.8 151.9 3.6 520.8 164.6 3.2 492.6 178.8 2.8 -1.0 408.4 123.8 3.3 390.0 133.7 2.9 370.8 144.7 2.6 351.1 157.1 2.2 330.7 170.7 1.9 2.0 454.2 127.7 3.6 434.1 137.7 3.2 413.2 149.0 2.8 391.7 161.7 2.4 369.7 175.8 2.1 5.0 503.9 131.9 3.8 481.9 142.2 3.4 459.2 153.7 3.0 435.8 166.7 2.6 411.9 181.3 2.3 8.0 557.7 136.6 4.1 533.7 147.0 3.6 509.0 158.8 3.2 483.6 172.2 2.8 457.5 187.2 2.5

11.0 615.9 141.8 4.4 589.7 152.4 3.9 562.8 164.4 3.4 535.2 178.2 3.0 506.9 193.6 2.6

140B 14.5

13.0 656.6 145.5 4.5 628.8 156.2 4.0 600.4 168.4 3.6 571.2 182.4 3.1 541.3 198.2 2.7 -1.0 445.9 134.9 3.3 425.3 145.8 2.9 404.3 157.7 2.6 383.2 170.8 2.3 362.5 185.2 2.0 2.0 495.7 139.4 3.6 473.3 150.4 3.2 450.4 162.6 2.8 427.3 176.2 2.4 404.4 191.2 2.1 5.0 549.6 144.3 3.8 525.3 155.4 3.4 500.4 167.9 3.0 475.2 182.0 2.6 450.1 197.7 2.3 8.0 607.8 149.7 4.1 581.4 161.0 3.6 554.3 173.8 3.2 526.9 188.4 2.8 499.5 204.6 2.5

11.0 670.2 155.8 4.3 641.7 167.2 3.8 612.5 180.3 3.4 582.7 195.3 3.0 552.8 212.2 2.6

155B 14.5

13.0 713.8 160.1 4.5 683.8 171.6 4.0 653.0 184.9 3.5 621.6 200.3 3.1 590.1 217.5 2.7 NOTES: 1. Ratings based on HCFC-22 and sea level altitude. 2. Interpolation is allowed; extrapolation is not permitted. Consult McQuay for performance outside the cataloged ratings. 3. KWi and COP are for the entire unit, including compressors, fan motors and control power.


Part Load Data

Table 8, ACZ 010A through 155B Unit

Size % Load Capacity Mbh

Power kWi EER IPLV

Unit Size % Load Capacity

Mbh Power

kWi EER IPLV

100 126 8.6 14.6 100 918 65.0 14.1 010A 53 62 5.2 12.1

12.9 76 694 47.8 14.5

100 170.4 11.6 14.7 50 459 33.0 13.9 013A 54 85 6.4 13.3

13.8

065B

26 235 15.9 14.8

14.4

100 217 14.7 14.7 100 984 69.9 14.1 016A 54 109 7.9 14.0

14.3 70 692 47.5 14.6

100 257 18.5 13.9 47 458 32.2 14.2 020A 56 132 9.3 14.2

14.2

070B

24 234 16.3 14.4

14.5

100 337.2 24.1 14.0 100 1047 77.0 13.6 025A 50 156 11.0 14.2

14.2 72 757 54.4 13.9

100 366 27.1 13.5 50 524 39.0 13.4 028A 55 187 13.5 13.9

13.9

080B

22 233 16.4 14.2

13.9

100 456 31.3 14.6 100 1198 84.3 14.2 033A 55 233 15.3 15.2

15.1 76 905 64.0 14.1

100 569 41.5 13.5 50 599 42.6 14.1 039A 56 292 19.3 15.1

14.8

090B

26 306 22.3 13.7

14.1

100 437 30.4 14.4 100 1316 92.8 14.2 76 330 23.2 14.2 73 964 67.6 14.3 50 219 15.7 13.9 46 599 42.6 14.1

030B

26 112 8.5 13.1

13.9

100B

23 306 22.3 13.7

14.2

100 484 33.9 14.3 100 1434 101.3 14.2 73 355 24.5 14.5 75 1082 76.1 14.2 45 219 15.7 13.9 50 717 51.1 14.0

035B

23 112 8.5 13.1

14.1

110B

25 365 25.9 14.1

14.2

100 532 37.4 14.2 100 1587 110.7 14.3 76 403 28.0 14.4 71 1130 82.9 13.6 50 266 19.2 13.9 44 691 46.9 14.7

040B

26 137 9.8 14.0

14.2

120B

19 306 23.6 13.0

14.1

100 619 42.1 14.7 100 1792 128.6 13.9 76 468 31.9 14.7 67 1202 87.4 13.8 50 309 21.5 14.4 50 896 64.8 13.8

045B

26 159 11.3 14.0

14.5

130B

17 306 23.6 13.0

13.7

100 683 48.3 14.1 100 1967 142.3 13.8 73 501 34.3 14.6 70 1378 101.1 13.6 45 309 21.5 14.3 46 896 64.8 13.8

050B

23 158 11.3 14.0

14.4

140B

19 365 27.2 13.5

13.8

100 753 51.5 14.6 100 2143 156.0 13.7 76 569 38.8 14.7 67 1437 104.6 13.7 50 376 26.3 14.3 50 1071 78.5 13.6

055B

26 193 13.6 14.2

14.5

155B

17 365 27.2 13.5

13.7

100 836 58.3 14.3 73 611 41.1 14.9 45 376 26.3 14.3

060B

23 193 13.6 14.2

14.6

NOTE: Certified according to ARI Standard 365-2002. For IPLV calculations, the full load and part load ratings are at 80°F ambient air temperature and 50°F suction temperature, with 15 degrees F superheat.


Sound Data Table 9, ACZ 010A-155B Sound Pressure, w/o Sound Insulation

Octave Band at Center Frequency ACZ Unit Model 63 125 250 500 1000 2000 4000 8000

Overall A-Weighted

010A 52 52 52 54 48 46 44 42 55 013A 52 52 52 54 48 46 44 42 55 016A 53 54 54 55 48 47 45 42 56 020A 58 56 55 53 52 50 48 48 57 025A 58 57 56 54 52 50 48 48 58 028A 58 58 56 55 52 50 48 48 58 033A 59 59 61 58 54 53 51 50 61 039A 61 62 63 59 55 54 53 51 63 030B 65 64 61 60 56 51 46 41 61 035B 65 64 61 60 56 51 46 41 61 040B 65 64 62 60 56 51 46 41 61 045B 65 64 63 61 57 52 47 42 62 050B 66 65 64 62 58 52 47 42 63 055B 66 66 64 62 58 52 47 42 63 060B 66 66 66 62 59 54 49 44 64 065B 67 66 67 62 59 54 49 44 64 070B 68 67 67 62 60 54 49 44 65 080B 68 68 67 62 60 54 49 44 65 090B 68 68 68 62 60 54 49 44 65 100B 67 65 65 64 62 56 54 54 66 110B 67 66 66 64 62 56 54 54 66 120B 66 68 65 65 62 56 56 55 67 130B 66 69 66 65 62 56 56 55 67 140B 67 68 66 65 62 58 59 56 68 155B 67 69 67 65 62 59 59 56 68

Note: Data at: 1. 30 feet (9m) from side of unit. 2. Q=2, unit on a flat roof or ground with no adjacent wall. 3. Octave band readings are flat dB, overall is “A” weighted.

Table 10, ACZ 010A-155B Sound Power, w/o Sound Insulation Octave Band at Center Frequency (per ARI Standard 370) ACZ Unit

Model 63 125 250 500 1000 2000 4000 8000 Overall

A-Weighted 010A 79 79 79 81 75 73 71 69 82 013A 79 79 79 81 75 73 71 69 82 016A 80 81 81 82 75 74 72 69 83 020A 85 83 82 80 79 77 75 75 84 025A 85 84 83 81 79 77 75 75 85 028A 85 85 83 82 79 77 75 75 85 033A 86 86 88 85 81 80 78 77 88 039A 88 89 90 86 82 81 80 78 90 030B 92 91 88 87 83 78 73 68 88 035B 92 91 88 87 83 78 73 68 88 040B 92 91 89 87 83 78 73 68 88 045B 92 91 90 88 84 79 74 69 89 050B 93 92 91 89 85 79 74 69 90 055B 93 93 91 89 85 79 74 69 90 060B 93 93 93 89 86 81 76 71 91 065B 94 93 94 89 86 81 76 71 91 070B 95 94 94 89 87 81 76 71 92 080B 95 95 94 89 87 81 76 71 92 090B 95 95 95 89 87 81 76 71 92 100B 94 92 92 91 89 83 81 81 93 110B 94 93 93 91 89 83 81 81 93 120B 93 95 92 92 89 83 83 82 94 130B 93 96 93 92 89 83 83 82 94 140B 94 95 93 92 89 85 86 83 95 155B 94 96 94 92 89 86 86 83 95

Sound data for units with sound insulation are on the next page.


Table 11, ACZ 010A-1550B Sound Pressure w/ Sound Insulation ACZ Unit Octave Band at Center Frequency Overall

Model Number of

Comp. Number of

Fans 63 125 250 500 1000 2000 4000 8000 A-Weighted010A 2 2 52 52 51 52 46 45 43 41 53 013A 2 2 52 52 51 52 46 45 43 41 53 016A 2 2 52 53 51 53 47 45 43 41 54 020A 2 2 52 53 53 54 47 45 44 42 55 025A 2 3 43 54 54 55 48 46 45 43 56 028A 2 3 54 54 54 55 48 46 45 43 56 033A 2 3 54 54 55 56 49 47 46 43 57 039A 2 3 55 55 56 57 50 48 47 43 58 030B 4 4 57 57 57 59 52 49 48 44 59 035B 4 4 57 57 56 57 50 48 47 43 58 040B 4 4 57 57 56 57 50 48 47 43 58 045B 4 4 57 57 56 57 50 48 47 43 58 050B 4 4 58 58 58 59 53 50 48 43 60 055B 4 4 58 58 58 59 53 50 48 43 60 060B 4 4 58 58 58 59 53 50 48 43 60 065B 4 4 58 58 58 59 53 50 48 43 60 070B 4 4 59 58 58 59 53 50 48 43 60 080B 4 4 61 58 58 59 53 50 48 43 60 090B 4 6 61 58 59 59 54 54 50 43 61 100B 4 6 61 59 59 59 56 53 50 44 61 110B 4 6 61 59 59 59 56 53 50 44 61 120B 6 6 63 59 59 59 56 53 50 44 61 130B 6 6 63 59 59 59 56 53 50 44 61 140B 6 6 63 59 60 59 56 53 50 44 61 155B 6 6 63 59 60 60 57 53 50 44 62

Notes: Data at: 1. 30 feet (9m) from side of unit. 2. Q=2, unit on a flat roof or ground with no adjacent wall. 3. Octave band readings are flat dB, overall is “A” weighted.

Table 12, ACZ 010A-155B Sound Power w/ Sound insulation ACZ Unit Octave Band at Center Frequency (per ARI Standard 370) Overall

Model Number of

Comp. Number of

Fans 63 125 250 500 1000 2000 4000 8000 A-Weighted010A 2 2 79 79 78 79 73 72 70 68 80 013A 2 2 79 79 78 79 73 72 70 68 80 016A 2 2 79 80 78 80 74 72 70 68 81 020A 2 2 79 80 80 81 74 72 71 69 82 025A 2 3 80 81 81 82 75 73 72 70 83 028A 2 3 81 81 81 82 75 73 72 70 83 033A 2 3 81 81 82 83 76 74 73 70 84 039A 2 3 82 82 83 84 77 75 74 70 85 030B 4 4 84 84 84 86 79 76 75 71 86 035B 4 4 84 84 83 84 77 75 74 70 85 040B 4 4 84 84 83 84 77 75 74 70 85 045B 4 4 84 84 83 84 77 75 74 70 85 050B 4 4 85 85 85 86 80 77 75 70 87 055B 4 4 85 85 85 86 80 77 75 70 87 060B 4 4 85 85 85 86 80 77 75 70 87 065B 4 4 85 85 85 86 80 77 75 70 87 070B 4 4 86 85 85 86 80 77 75 70 87 080B 4 4 88 85 85 86 80 77 75 70 87 090B 4 6 88 85 86 86 81 81 77 70 88 100B 4 6 88 86 86 86 83 80 77 71 88 110B 4 6 88 86 86 86 83 80 77 71 88 120B 6 8 90 86 86 86 83 80 77 71 88 130B 6 8 90 86 86 86 83 80 77 71 88 140B 6 8 90 86 87 86 83 80 77 71 88 155B 6 8 90 86 87 87 84 80 77 71 88

Note: Octave band readings are flat dB, overall is “A” weighted.


Sound levels can be as important as unit cost and efficiency, and must be addressed before the start of any development program. Efforts by McQuay Design Engineers to design units that are sensitive to the sound requirements of the market, combined with inherently quiet scroll compressors, have paid off.

Background Information Sound is a vibration in an elastic medium and is essentially a pressure and particle displacement phenomena. A vibrating body produces compression waves, and as the waves are emitted from the vibrating body, molecules are ultimately compressed. These values are transmitted through gas, liquid, solid⎯anything which is elastic or viscous.

The sound data provided in this section is presented with both sound pressure and sound power levels. Sound power is the total sound energy radiated by a source per unit of time integrated over the surface through which the sound is radiated. Sound power is a calculated quantity and cannot be measured directly like sound pressure. Sound power is not dependent on the surrounding environment or distance from the source, as is sound pressure.

Sound pressure varies with the distance from the source and is dependent on its surroundings. For example, a brick wall located 10 feet from a unit will affect the sound pressure measurements differently than a brick wall at 20 feet. Sound pressure is measured in decibels (dB), which is a dimensionless ratio (on a logarithmic scale) between measured sound pressure and a reference sound pressure level.

Sound Pressure Levels - Full Load All sound pressure tables give the overall "A" weighted sound pressure levels which are considered typical of what can be measured in a free field with a hand held sound meter, in the absence of any nearby reflective surfaces. The sound pressure levels are measured at 30 feet (10 meters) from the side of the unit at 100% unit load and ARI conditions. 95°F (35°C) ambient air temperature and 50°F suction temperature.

Sound Power Levels Acoustical consultants can require sound power octave band data to perform a detailed acoustical analysis. The tables present sound power levels per ARI Standard 370, “Sound Rating of Large Outdoor Refrigerating and Air Conditioning Equipment”. These standards were developed to establish uniform methods of determining the sound power radiated by large outdoor and indoor equipment. The aforementioned methods are based on providing sound power levels by octave band and the overall ‘A’ weighted value. Measurements are taken over a prescribed area around the unit and the data is mathematically calculated to give the sound power, dB. Sound power can be thought of as basic sound level emanating from the unit without consideration of distance or obstructions.

Sound Reduction due to Distance from the Unit The distance between a source of sound and the location of the sound measurement plays an important role in minimizing sound problems. The equation below can be used to calculate the sound pressure level at any distance if the sound power is known. Results for typical distances are tabulated in Table 13. Another way of determining the effect of distance is to work from sound pressure only. “Q”, the directionality factor, is a dimensionless number that compensates for the type of sound reflection from the source. For example, a unit sitting on a flat roof or ground with no other reflective surfaces or attenuation due to grass, snow, etc., between source and receiver: Q=2.


Figure 9, "Q" Definition, Plan View, Unit Located in Center

Uniform Spherical RadiationQ=1 no reflecting surface

Uniform Hemispherical RadiationQ=2 single reflecting surface

Uniform Radiation over ¼ of sphereQ=4 two reflecting surfaces

Sound pressure can be calculated at any distance from the unit if the sound power is known. Lp=Lw-(20 log r) + (10 log Q) - .5

Lp = sound pressure r = distance from unit in feet

Lw = sound power Q = directionality factor

With Q=1, Unit suspended in space (theoretical condition), the equation simplifies to: Lp = Lw – (20)(log r) –0.5

With Q=2, for a unit sitting on a flat roof or ground with no adjacent vertical wall as a reflective surface, the equation simplifies to: Lp = Lw – (20)(log r) + 2.5

With Q=4 for a unit sitting on a flat roof or ground with one adjacent vertical wall as a reflective surface, the equation simplifies to: Lp = Lw – (20)(log r) + 5.5

The equations are reduced to table form in Table 13 for various distances and the two most usual cases of “Q” type of location.

Table 13, dB Conversion of Sound Power to Pressure for Distance dB Reduction from Sound Power at the Source to

Sound Pressure at Referenced Distance Distance from Sound

Source ft. (m) Q=2 Q=4 30 (9) 27.1 24.0

50 (15) 31.6 28.5 75 (23) 35.1 32.0 100 (30) 37.6 34.5 150 (46) 41.1 38.0 200 (61) 43.6 40.5 300 (91) 47.6 44.0


Figure 10, Sound Pressure Attenuation Due to Distance from Unit

Sound Pressure Reduction - Low Ambient Conditions Unit operation at a lower ambient temperature than 95°F (35°C) will also result in lower sound pressure levels. The sound pressure level will decrease 1 dBA for ambient temperatures between 85°F and 94°F (29.4°C and 34.4°C), 2 dBA for ambient temperatures between 75°F and 84°F (23.9°C and 28.9°C), and 3 dBA for ambient temperatures between 65°F and 74°F (18.3°C and 23.3°C).

Figure 11, Model ACZ 155B, Nominal 158 Ton Condensing Unit


Electrical Data, General There are many installations where the expected summer ambient air temperatures will be at 105°F (40.1°C) or less, resulting in smaller unit electrical requirements compared to operation at 106°F (41.1°C) and above. In these lower temperature cases, there can be considerable installation cost savings by using smaller and more appropriate electrical service.

Single circuit models, ACZ-A, are rated to 115°F (46°C) as standard. There is no High Ambient Option.

For two circuit models, ACZ-B, the electrical data is divided into two classifications based on the ambient environment where the unit will operate. “Standard Units” operate in ambient temperatures of 105°F or less. Units with the “High Ambient” option will be for ambient temperatures above 105°F.

The “Standard Ambient” ACZ-B units have lower electrical requirements where possible. This electrical data will be listed on the unit’s nameplate shipping from the factory.

Units with the “High Ambient” option will include not only the addition of a small fan with a filter in the air intake to cool the control panel, but also a different unit nameplate that lists the larger electrical requirements.

Models ACZ 030B – 155B Winter Operation 0°F to 34°F 35°F and Above

Fan Control Optional VFD (1) Standard FanTrol (2)

Design Ambient Air Temperature <105°F >106°F <105°F >106°F

Electrical Data (3) Standard Ambient

High Ambient

Standard Ambient

High Ambient

Panel Fan Required (4) Yes Yes No Yes

Model BC BH BC BH Notes: 1. VFD is variable speed, fan control through the MicroTech II controller. 2. FanTrol is fan cycling off discharge pressure. 3. The VFD option automatically includes the factory-installed panel fan and filter set.


Electrical Data, Standard Ambient

Table 14, ACZ 010A – 039A, Single Point Electrical Data (to 115°F Ambient) Power Supply

Field Wire Hub (Conduit Connection)

Field Fuse Size or HACR (Heating/Air-

Conditioning/Refrigeration) Breaker Size

ACZ Unit Size

Volts

Minimum Circuit

Ampacity (MCA)

Quantity Wire

Gauge 75C

Quantity Nominal

Size In. (mm)

Recommended Maximum

208 45 3 8 1 1.00 (25) 50 50 230 45 3 8 1 1.00 (25) 50 50 460 22 3 10 1 1.00 (25) 25 25

010A

575 18 3 10 1 1.00 (25) 20 20

208 54 3 6 1 1.00 (25) 60 70 230 54 3 6 1 1.00 (25) 60 70 460 26 3 10 1 1.00 (25) 30 35

013A

575 23 3 10 1 1.00 (25) 25 30

208 65 3 6 1 1.00 (25) 80 80 230 65 3 6 1 1.00 (25) 80 80 460 34 3 10 1 1.00 (25) 40 45

016A

575 27 3 10 1 1.00 (25) 30 35

208 79 3 4 1 1.00 (25) 90 100 230 79 3 4 1 1.00 (25) 90 100 460 41 3 8 1 1.00 (25) 45 50

020A

575 33 3 10 1 1.00 (25) 40 40

208 103 3 2 1 1.25 (32) 125 125 230 103 3 2 1 1.25 (32) 125 125 460 53 3 6 1 1.00 (25) 60 70

025A

575 45 3 8 1 1.00 (25) 50 60

208 110 3 2 1 1.25 (32) 125 150 230 110 3 2 1 1.25 (32) 125 150 460 58 3 6 1 1.00 (25) 70 80

028A

575 48 3 8 1 1.00 (25) 60 60

208 127 3 1 1 1.50 (38) 150 175 230 127 3 1 1 1.50 (38) 150 175 460 62 3 6 1 1.00 (25) 70 80

033A

575 58 3 6 1 1.00 (25) 70 70

208 182 3 3/0 1 1.50 (38) 225 250 230 182 3 3/0 1 1.50 (38) 225 250 460 79 3 4 1 1.00 (25) 90 100

039A

575 63 3 6 1 1.00 (25) 80 80

NOTE: See page 46 for all Electrical Data notes.


Table 15, ACZ 030B – 065B, Single Point Power Electrical Data (to 105°F Ambient Temperature)

POWER SUPPLY Field Wire ACZ-B

Unit Size Volts

Minimum Circuit

Ampacity (MCA) Quantity Wire

Gauge

Recomm’d. Fuse

Or HACR Breaker

Size

Max. Fuse Or HACR Breaker

Size

208 133 3 1/0 150 150 230 126 3 #1 150 150 380 80 3 #4 90 90 460 68 3 #4 80 80

030

575 52 3 #6 60 60

208 146 3 1/0 175 175 230 143 3 1/0 175 175 380 88 3 #3 100 100 460 74 3 #4 80 90

035

575 58 3 #6 70 70

208 158 3 2/0 175 175 230 150 3 1/0 175 175 380 96 3 #3 110 110 460 79 3 #4 90 90

040

575 64 3 #6 70 70

208 167 3 2/0 200 200 230 167 3 2/0 200 200 380 113 3 #2 125 125 460 81 3 #4 90 90

045

575 70 3 #4 80 80

208 184 3 3/0 225 225 230 184 3 3/0 225 225 380 121 3 #1 125 125 460 94 3 #3 110 110

050

575 78 3 #4 90 90

208 199 3 3/0 225 225 230 199 3 3/0 225 225 380 127 3 #1 150 150 460 104 3 #2 125 125

055

575 86 3 #3 100 100

208 221 3 4/0 250 250 230 214 3 4/0 250 250 380 145 3 1/0 175 175 460 108 3 #2 125 125

060

575 96 3 #3 110 110

208 248 3 250 300 300 230 228 3 4/0 250 250 380 156 3 2/0 175 175 460 112 3 #2 150 150

065

575 105 3 #2 125 125 NOTES: 1. See page 46 for all other Electrical Data notes. 2. Conduit hubs are not provided.


Table 16, ACZ 070B - 155B 60 Hz, Single Point Electrical Power (to 105°F Ambient Temperature)

POWER SUPPLY Field Wire ACZ-B

Unit Size

Volts

Minimum Circuit

Ampacity (MCA) Quantity Wire Gauge

Recomm’d. Fuse Or HACR

Breaker Size

Max. Fuse Or HACR

Breaker Size

208 281 3 300 350 350 230 281 3 300 350 350 380 162 3 2/0 200 200 460 124 3 #1 150 150

070

575 109 3 #2 125 125

208 301 3 350 350 350 230 301 3 350 350 350 380 168 3 2/0 200 200 460 130 3 #1 150 150

080

575 112 3 #2 125 125

208 358 6 4/0 400 400 230 358 6 4/0 400 400 380 187 3 3/0 225 225 460 150 3 1/0 175 175

090

575 125 3 #1 150 150

208 380 6 250 450 450 230 380 6 250 450 450 380 219 3 250 250 250 460 171 3 2/0 200 200

100

575 136 3 1/0 150 150

208 414 6 300 500 500 230 414 6 300 500 500 380 248 3 250 300 300 460 188 3 3/0 225 225

110

575 146 3 1/0 175 175

208 463 6 350 500 500 230 463 6 300 500 500 380 260 3 300 300 300 460 199 3 3/0 225 225

120

575 171 3 2/0 175 175

208 528 6 - (2) 300 600 600 230 528 6 - (2) 300 600 600 380 282 3 300 300 300 460 220 3 4/0 250 250

130

575 182 3 3/0 200 200

208 613 6 - (2) 350 700 700 230 613 6 - (2) 350 700 700 380 323 3 400 350 350 460 248 3 250 250 250

140

575 198 3 3/0 225 225

208 613 6 - (2) 350 700 700 230 613 6 - (2) 350 700 700 380 361 6 4/0 400 400 460 273 3 300 300 300

155

575 212 3 4/0 225 225 NOTES: 1. See page 46 for all other Electrical Data notes. 2. (2) indicates that two conduits are required. 3. Conduit hubs are not provided.


Table 17, ACZ 010A – 039A Compressor and Condenser Fan Motor Amp Draw Rated Load Amps Locked Rotor Amps

Compressors Compressors Across-The-Line

ACZ Unit Size

Volts Hz. No. 1 No. 2

F.L. Amps Fan

Motor (Each)

No. ofFan Mtrs

L.R.AmpsFan

Motor (Each) No. 1 No. 2

208 14.8 14.8 5.8 2 23.7 91 91 230 14.8 14.8 5.8 2 21.4 91 91 460 7.1 7.1 2.8 2 10.7 50 50

010A

575

60

5.8 5.8 2.5 2 11.0 37 37

208 18.6 18.6 5.8 2 23.7 156 156 230 18.6 18.6 5.8 2 21.4 156 156 460 9.1 9.1 2.8 2 10.7 75 75

013A

575

60

7.4 7.4 2.5 2 11.0 54 54

208 23.7 23.7 5.8 2 23.7 189 189 230 23.7 23.7 5.8 2 21.4 189 189 460 12.5 12.5 2.8 2 10.7 99 99

016A

575

60

9.1 9.1 2.5 2 11.0 74 74

208 29.9 29.9 5.8 2 23.7 232 232 230 29.9 29.9 5.8 2 21.4 232 232 460 15.3 15.3 2.8 2 10.7 125 125

020A

575

60

11.6 11.6 2.5 2 11.0 100 100

208 33.6 41 5.8 3 23.7 278 350 230 33.6 41 5.8 3 21.4 278 350 460 16.5 21.8 2.8 3 10.7 127 158

025A

575

60

13.7 17.3 2.5 3 11.0 100 125

208 41.0 41.0 5.8 3 23.7 350 350 230 41.0 41.0 5.8 3 21.4 350 350 460 21.8 21.8 2.8 3 10.7 158 158

028A

575

60

17.3 17.3 2.5 3 11.0 125 125

208 48.5 48.5 5.8 3 23.7 425 425 230 48.5 48.5 5.8 3 21.4 425 425 460 23.7 23.7 2.8 3 10.7 187 187

033A

575

60

21.7 21.7 2.5 3 11.0 148 148

208 73.1 73.1 5.8 3 23.7 505 505 230 73.1 73.1 5.8 3 21.4 505 505 460 31.0 31.0 2.8 3 10.7 225 225

039A

575

60

24.4 24.4 2.5 3 11.0 180 180



Table 18, ACZ 030B - 065B, Compressor And Condenser Fan Motor Amp Draw Rated Load Amps Locked Rotor Amps


ACZ-B Unit Size

Volts No. 1 No. 3 No. 5 No. 2 No. 4 No. 6

F.L.AmpsFan

Motors (Each)

No. Of Fan

Motors Fan

Motors(Each) No.1 No. 3 No. 5 No.2 No.4 No. 6

208 25.7 25.7 - 25.7 25.7 - 5.8 4 23.3 189 189 - 189 189 - 230 24.2 24.2 - 24.2 24.2 - 5.8 4 26.1 189 189 - 189 189 - 380 14.9 14.9 - 14.9 14.9 - 4.1 4 20.0 112 112 - 112 112 - 460 13.4 13.4 - 13.4 13.4 - 2.8 4 13.0 99 99 - 99 99 -

030

575 9.3 9.3 - 9.3 9.3 - 3.0 4 14.0 74 74 - 74 74 -

208 25.7 25.7 - 31.8 31.8 - 5.8 4 23.3 189 189 - 232 232 - 230 24.2 24.2 - 31.8 31.8 - 5.8 4 26.1 189 189 - 232 232 - 380 14.9 14.9 - 18.6 18.6 - 4.1 4 20.0 112 112 - 144 144 - 460 13.4 13.4 - 16.0 16.0 - 2.8 4 13.0 99 99 - 125 125 -

035

575 9.3 9.3 - 12.2 12.2 - 3.0 4 14.0 74 74 - 100 100 -

208 31.8 31.8 - 31.8 31.8 - 5.8 4 23.3 232 232 - 232 232 - 230 29.9 29.9 - 29.9 29.9 - 5.8 4 26.1 232 232 - 232 232 - 380 18.6 18.6 - 18.6 18.6 - 4.1 4 20.0 144 144 - 144 144 - 460 16.0 16.0 - 16.0 16.0 - 2.8 4 13.0 125 125 - 125 125 -

040

575 12.2 12.2 - 12.2 12.2 - 3.0 4 14.0 100 100 - 100 100 -

208 33.8 33.8 - 33.8 33.8 - 5.8 4 23.3 278 278 - 278 278 - 230 33.8 33.8 - 33.8 33.8 - 5.8 4 26.1 278 278 - 278 278 - 380 22.8 22.8 - 22.8 22.8 - 4.1 4 20.0 151 151 - 151 151 - 460 16.5 16.5 - 16.5 16.5 - 2.8 4 13.0 127 127 - 127 127 -

045

575 13.7 13.7 - 13.7 13.7 - 3.0 4 14.0 100 100 - 100 100 -

208 33.8 33.8 - 41.4 41.4 - 5.8 4 23.3 278 278 - 350 350 - 230 33.8 33.8 - 41.4 41.4 - 5.8 4 26.1 278 278 - 350 350 - 380 22.8 22.8 - 26.0 26.0 - 4.1 4 20.0 151 151 - 195 195 - 460 16.5 16.5 - 21.8 21.8 - 2.8 4 13.0 127 127 - 158 158 -

050

575 13.7 13.7 - 17.3 17.3 - 3.0 4 14.0 100 100 - 125 125 -

208 41.4 41.4 - 41.4 41.4 - 5.8 4 23.3 350 350 - 350 350 - 230 41.4 41.4 - 41.4 41.4 - 5.8 4 26.1 350 350 - 350 350 - 380 26.0 26.0 - 26.0 26.0 - 4.1 4 20.0 195 195 - 195 195 - 460 21.8 21.8 - 21.8 21.8 - 2.8 4 13.0 158 158 - 158 158 -

055

575 17.3 17.3 - 17.3 17.3 - 3.0 4 14.0 125 125 - 125 125 -

208 41.0 41.0 - 51.3 51.3 - 5.8 4 23.3 350 350 - 425 425 - 230 41.0 41.0 - 48.1 48.1 - 5.8 4 26.1 350 350 - 425 425 - 380 26.0 26.0 - 33.8 33.8 - 4.1 4 20.0 195 195 - 239 239 - 460 21.8 21.8 - 23.7 23.7 - 2.8 4 13.0 158 158 - 187 187 -

060

575 17.3 17.3 - 21.8 21.8 - 3.0 4 14.0 125 125 - 148 148 -

208 52.8 52.8 - 52.8 52.8 - 5.8 4 23.3 425 425 - 425 425 - 230 48.1 48.1 - 48.1 48.1 - 5.8 4 26.1 425 425 - 425 425 - 380 32.7 32.7 - 32.7 32.7 - 4.1 4 20.0 239 239 - 239 239 - 460 23.7 23.7 - 23.7 23.7 - 2.8 4 13.0 187 187 - 187 187 -

065

575 21.8 21.8 - 21.8 21.8 - 3.0 4 14.0 148 148 - 148 148 -



Table 19, ACZ 070B - 155B, Compressor And Condenser Fan Motor Amp Draw Rated Load Amps Locked Rotor Amps


ACZ-B Unit Size


F.L. Amps Fan

Motors(Each)

No. OfFan

Motors Fan

Motors(Each) No.1 No. 3 No. 5 No.2 No.4 No. 6

208 52.8 52.8 - 52.8 73.1 - 7.8 4 31.7 425 425 - 425 505 - 230 52.8 52.8 - 52.8 73.1 - 7.8 4 35.6 425 425 - 425 505 - 380 32.7 32.7 - 32.7 38.2 - 4.1 4 20.0 239 239 - 239 280 - 460 23.7 23.7 - 23.7 30.1 - 3.6 4 17.8 187 187 - 187 225 -

070

575 21.8 21.8 - 21.8 25.2 - 3.0 4 14.0 148 148 - 148 180 -

208 52.8 73.1 - 52.8 73.1 - 7.8 4 31.7 425 505 - 425 505 - 230 52.8 73.1 - 52.8 73.1 - 7.8 4 35.6 425 505 - 425 505 - 380 32.7 38.2 - 32.7 38.2 - 4.1 4 20.0 239 280 - 239 280 - 460 23.7 30.1 - 23.7 30.1 - 3.6 4 17.8 187 225 - 187 225 -

080

575 21.8 25.2 - 21.8 25.2 - 3.0 4 14.0 148 180 - 148 180 -

208 73.1 73.1 - 73.1 73.1 - 7.8 6 31.7 505 505 - 505 505 - 230 73.1 73.1 - 73.1 73.1 - 7.8 6 35.6 505 505 - 505 505 - 380 38.2 38.2 - 38.2 38.2 - 4.1 6 20.0 280 280 - 280 280 - 460 30.1 30.1 - 30.1 30.1 - 3.6 6 17.8 225 225 - 225 225 -

090

575 25.2 25.2 - 25.2 25.2 - 3.0 6 14.0 180 180 - 180 180 -

208 73.1 73.1 - 83.3 83.3 - 7.8 6 31.7 505 505 - 500 500 - 230 73.1 73.1 - 83.3 83.3 - 7.8 6 35.6 505 505 - 500 500 - 380 38.2 38.2 - 52.5 52.5 - 4.1 6 20.0 280 280 - 305 305 - 460 30.1 30.1 - 39.0 39.0 - 3.6 6 17.8 225 225 - 250 250 -

100

575 25.2 25.2 - 30.0 30.0 - 3.0 6 14.0 180 180 - 198 198 -

208 86.4 86.4 - 86.4 86.4 - 7.8 6 31.7 500 500 - 500 500 - 230 86.4 86.4 - 86.4 86.4 - 7.8 6 35.6 500 500 - 500 500 - 380 52.5 52.5 - 52.5 52.5 - 4.1 6 20.0 305 305 - 305 305 - 460 39.0 39.0 - 39.0 39.0 - 3.6 6 17.8 250 250 - 250 250 -

110

575 30.0 30.0 - 30.0 30.0 - 3.0 6 14.0 198 198 - 198 198 -

208 52.8 52.8 52.8 74.5 74.5 74.5 7.8 8 31.7 425 425 425 505 505 505 230 52.8 52.8 52.8 74.5 74.5 74.5 7.8 8 35.6 425 425 425 505 505 505 380 32.7 32.7 32.7 39.8 39.8 39.8 4.1 8 20.0 239 239 239 280 280 280 460 23.7 23.7 23.7 30.6 30.6 30.6 3.6 8 17.8 187 187 187 225 225 225

120

575 21.8 21.8 21.8 25.2 25.2 25.2 3.0 8 14.0 148 148 148 180 180 180

208 74.5 74.5 74.5 74.5 74.5 74.5 7.8 8 31.7 505 505 505 505 505 505 230 74.5 74.5 74.5 74.5 74.5 74.5 7.8 8 35.6 505 505 505 505 505 505 380 39.8 39.8 39.8 39.8 39.8 39.8 4.1 8 20.0 280 280 280 280 280 280 460 30.6 30.6 30.6 30.6 30.6 30.6 3.6 8 17.8 225 225 225 225 225 225

130

575 25.2 25.2 25.2 25.2 25.2 25.2 3.0 8 14.0 180 180 180 180 180 180

208 87.9 87.9 87.9 88.0 88.0 88.0 7.8 8 31.7 505 505 505 500 500 500 230 87.9 87.9 87.9 88.0 88.0 88.0 7.8 8 35.6 505 505 505 500 500 500 380 39.8 39.8 39.8 52.5 52.5 52.5 4.1 8 20.0 280 280 280 305 305 305 460 30.6 30.6 30.6 39.0 39.0 39.0 3.6 8 17.8 225 225 225 250 250 250

140

575 25.2 25.2 25.2 30.0 30.0 30.0 3.0 8 14.0 180 180 180 198 198 198

208 88.0 88.0 88.0 88.0 88.0 88.0 7.8 8 31.7 500 500 500 500 500 500 230 88.0 88.0 88.0 88.0 88.0 88.0 7.8 8 35.6 500 500 500 500 500 500 380 52.5 52.5 52.5 52.5 52.5 52.5 4.1 8 20.0 305 305 305 305 305 305 460 39.0 39.0 39.0 39.0 39.0 39.0 3.6 8 17.8 250 250 250 250 250 250

155

575 30.0 30.0 30.0 30.0 30.0 30.0 3.0 8 14.0 198 198 198 198 198 198



Table 20, ACZ 010A – 039A, Field Wiring Data, Single Point Power Wiring to

Standard Power Block TerminalWiring to

Optional Disconnect Switch ACZ UNIT SIZE

Volts Maximum Terminal

Amps

Connector Wire Range

(Copper Wire Only)

Disconnect Size

Factory Option Connector Wire Range

(Copper Wire Only) 208 175 14 GA – 2/0 100 #8-1/0 230 175 14 GA – 2/0 100 #8-1/0 460 175 14 GA – 2/0 63 #1-#14

010A

575 175 14 GA – 2/0 63 #1-#14

208 175 14 GA – 2/0 100 #8-1/0 230 175 14 GA – 2/0 100 #8-1/0 460 175 14 GA – 2/0 63 #1-#14

013A

575 175 14 GA – 2/0 63 #1-#14

208 175 14 GA – 2/0 100 #8-1/0 230 175 14 GA – 2/0 100 #8-1/0 460 175 14 GA – 2/0 63 #1-#14

016A

575 175 14 GA – 2/0 63 #1-#14

208 175 14 GA – 2/0 100 #10-1/0 230 175 14 GA – 2/0 100 #10-1/0 460 175 14 GA – 2/0 63 #1-#14

020A

575 175 14 GA – 2/0 63 #1-#14

208 175 14 GA – 2/0 225 #2-4/0 230 175 14 GA – 2/0 225 #2-4/0 460 175 14 GA – 2/0 100 #8-1/0

025A

575 175 14 GA – 2/0 100 #10-1/0

208 175 14 GA – 2/0 225 #2-4/0 230 175 14 GA – 2/0 225 #2-4/0 460 175 14 GA – 2/0 100 #8-1/0

028A

575 175 14 GA – 2/0 100 #10-1/0

208 175 14 GA – 2/0 225 #2-4/0 230 175 14 GA – 2/0 225 #2-4/0 460 175 14 GA – 2/0 100 #8-1/0

033A

575 175 14 GA – 2/0 100 #10-1/0

208 335 6 GA – 400 kcmil 225 #2-4/0 230 335 6 GA – 400 kcmil 225 #2-4/0 460 175 14 GA – 2/0 125 #3-3/0

039A

575 175 14 GA – 2/0 100 #10-1/0



Table 21, ACZ 030B – 065B, Field Wiring Data, Single Point Power Wiring to Standard

Power Block Wiring to Optional

Non-Fused Disconnect Switch ACZ Unit Size

Volts Terminal

Amps


(Copper Wire Only)

Disconnect Size

Connector Wire Range(Copper Wire Only)

208 175 14 GA – 2/0 225 # 4 - 300 kcmil 230 175 14 GA – 2/0 225 # 4 - 300 kcmil 380 175 14 GA – 2/0 150 # 4 - 300 kcmil 460 175 14 GA – 2/0 150 # 4 - 300 kcmil

030B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil

208 380 #4 – 500 kcmil 225 # 4 - 300 kcmil 230 380 #4 – 500 kcmil 225 # 4 - 300 kcmil 380 175 14 GA – 2/0 150 # 4 - 300 kcmil 460 175 14 GA – 2/0 150 # 4 - 300 kcmil

035B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil


040B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil


045B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil


050B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil

208 380 #4 – 500 kcmil 250 #6 - 350 kcmil 230 380 #4 – 500 kcmil 250 #6 - 350 kcmil 380 175 14 GA – 2/0 150 # 4 - 300 kcmil 460 175 14 GA – 2/0 150 # 4 - 300 kcmil

055B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil

208 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 230 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 380 175 14 GA – 2/0 250 #6 - 350 kcmil 460 175 14 GA – 2/0 150 # 4 - 300 kcmil

060B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil

208 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 230 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 380 380 #4 – 500 kcmil 250 #6 - 350 kcmil 460 175 14 GA – 2/0 150 # 4 - 300 kcmil

065B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil



Table 22, ACZ 070B - 155B, 60 Hz, Field Wiring Data, Single Point Wiring to Standard


Non-Fused Disconnect Switch ACZ Unit Size

Volts Terminal

Amps


(Copper Wire Only)

Disconnect Size

Connector Wire Range(Copper Wire Only)

208 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 230 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 380 380 #4 – 500 kcmil 250 #6 - 350 kcmil 460 175 14 GA – 2/0 250 # 4 - 300 kcmil

070B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil

208 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 230 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 380 380 #4 – 500 kcmil 250 #6 - 350 kcmil 460 380 #4 – 500 kcmil 250 # 4 - 300 kcmil

080B

575 175 14 GA – 2/0 150 # 4 - 300 kcmil

208 760 2 GA – 500 kcmil 600 (2) 250 kcmil -500 kcmil230 760 2 GA – 500 kcmil 600 (2) 250 kcmil -500 kcmil380 380 #4 – 500 kcmil 250 #6 - 350 kcmil 460 380 #4 – 500 kcmil 250 #6 - 350 kcmil

090B

575 380 #4 – 500 kcmil 250 #6 - 350 kcmil

208 760 2 GA – 500 kcmil 600 (2) 250 kcmil -500 kcmil230 760 2 GA – 500 kcmil 600 (2) 250 kcmil -500 kcmil380 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 460 380 #4 – 500 kcmil 250 #6 - 350 kcmil

100B

575 380 #4 – 500 kcmil 250 #6 - 350 kcmil

208 760 2 GA – 500 kcmil 600 (2) 250 kcmil -500 kcmil230 760 2 GA – 500 kcmil 600 (2) 250 kcmil -500 kcmil380 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 460 380 #4 – 500 kcmil 250 #6 - 350 kcmil

110B

575 380 #4 – 500 kcmil 250 #6 - 350 kcmil

208 760 2 GA – 500 kcmil 600 (2) 250 kcmil -500 kcmil230 760 2 GA – 500 kcmil 600 (2) 250 kcmil -500 kcmil380 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 460 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil

120B

575 380 #4 – 500 kcmil 250 #6 - 350 kcmil

208 760 2 GA – 500 kcmil 800 (2) 250 kcmil -500 kcmil230 760 2 GA – 500 kcmil 800 (2) 250 kcmil -500 kcmil380 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 460 380 #4 – 500 kcmil 400 (2) 3/0-250 kcmil

130B

575 380 #4 – 500 kcmil 400 (2) 3/0-250 kcmil

208 760 2 GA – 500 kcmil 800 (2) 250 kcmil -500 kcmil230 760 2 GA – 500 kcmil 800 (2) 250 kcmil -500 kcmil380 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil 460 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil

140B

575 380 #4 – 500 kcmil 400 (2) 3/0-250 kcmil

208 760 2 GA – 500 kcmil 800 (2) 250 kcmil -500 kcmil230 760 2 GA – 500 kcmil 800 (2) 250 kcmil -500 kcmil380 760 2 GA – 500 kcmil 600 (2) 3/0-250 kcmil 460 380 #4 – 500 kcmil 400 250 kcmil -500 kcmil

155B

575 380 #4 – 500 kcmil 400 (2) 3/0-250 kcmil


.


Table 23, ACZ 030B - 065B, 60 Hz, Multi-Point, Power Electrical Data (to 105°F Ambient Temperature)

Electrical Circuit #1 Electrical Circuit #2

Power Supply Power Supply

Field Wire Field Wire

ACZ Unit Size

Volts Minimum

Circuit Ampacity

(MCA) Qty Wire Gauge

Recomm’d Fuse

or HACR Breaker

Size

Max. Fuse

or HACRBreaker

Size

Minimum Circuit

Ampacity (MCA) Qty Wire

Gauge

Recomm’d Fuse

or HACR Breaker

Size

Max. Fuse or HACR Breaker

Size

208 70 3 #4 80 90 70 3 #4 80 90 230 66 3 #4 80 90 66 3 #4 80 90 380 42 3 #8 50 50 42 3 #8 50 50 460 36 3 #8 45 45 36 3 #8 45 45

030B

575 27 3 #10 35 35 27 3 #10 35 35

208 70 3 #4 80 90 83 3 #4 100 110 230 66 3 #4 80 90 83 3 #4 100 100 380 42 3 #8 50 50 50 3 #8 60 60 460 36 3 #8 45 45 42 3 #8 50 50

035B

575 27 3 #10 35 35 34 3 #10 40 45

208 83 3 #4 100 110 83 3 #4 100 110 230 79 3 #4 100 100 79 3 #4 100 100 380 50 3 #8 60 60 50 3 #8 60 60 460 42 3 #8 50 50 42 3 #8 50 50

040B

575 34 3 #10 40 45 34 3 #10 40 45

208 88 3 #3 110 110 88 3 #3 110 110 230 88 3 #3 110 100 88 3 #3 110 100 380 60 3 #6 70 80 60 3 #6 70 80 460 43 3 #8 50 50 43 3 #8 50 50

045B

575 37 3 #8 45 50 37 3 #8 45 50

208 88 3 #3 110 110 105 3 #2 125 125 230 88 3 #3 110 110 105 3 #2 125 125 380 60 3 #6 70 80 67 3 #4 80 80 460 43 3 #8 50 50 55 3 #6 70 70

050B

575 37 3 #8 45 50 45 3 #8 50 60

208 105 3 #2 125 125 105 3 #2 125 125 230 105 3 #2 125 125 105 3 #2 125 125 380 67 3 #4 80 80 67 3 #4 80 80 460 55 3 #6 70 70 55 3 #6 70 70

055B

575 45 3 #8 50 60 45 3 #8 50 60

208 105 3 #2 125 125 130 3 #1 150 175 230 105 3 #2 125 125 120 3 #1 150 150 380 67 3 #4 80 80 82 3 #3 100 110 460 55 3 #6 70 70 59 3 #6 70 80

060B

575 45 3 #8 50 60 55 3 #6 70 70

208 130 3 #1 150 175 130 3 #1 150 175 230 120 3 #1 150 150 120 3 #1 150 150 380 82 3 #3 100 110 82 3 #3 100 110 460 59 3 #6 70 80 59 3 #6 70 80

065B

575 55 3 #6 70 70 55 3 #6 70 70



Table 24, ACZ 070B - 155B, 60 Hz, Multi-Point, Power Electrical Data (to 105°F Ambient Temperature)

Electrical Circuit #1 Electrical Circuit #2 Power Supply

Power Supply

Field Wire Field Wire

ACZ Unit Size

Volts Minimum

Circuit Ampacity

(MCA) Qty Wire Gauge

Recomm’d Fuse

or HACR Breaker

Size

Max. Fuse

or HACRBreaker

Size

Minimum Circuit

Ampacity (MCA) Qty Wire

Gauge

Recomm’d Fuse

or HACR Breaker

Size

Max. Fuse

or HACRBreaker

Size

208 135 3 1/0 175 175 160 3 2/0 200 225 230 135 3 1/0 175 175 160 3 2/0 200 225 380 82 3 #4 100 110 89 3 #3 110 125 460 61 3 #6 70 80 69 3 #4 90 100

070B

575 55 3 #6 70 70 59 3 #6 70 80

208 160 3 2/0 200 225 160 3 2/0 200 225 230 160 3 2/0 200 225 160 3 2/0 200 225 380 89 3 #3 110 125 89 3 #3 110 125 460 69 3 #4 90 100 69 3 #4 90 100

080B

575 59 3 #6 70 80 59 3 #6 70 80

208 188 3 3/0 225 250 188 3 3/0 225 250 230 188 3 3/0 225 250 188 3 3/0 225 250 380 98 3 #3 110 125 98 3 #3 110 125 460 79 3 #4 90 110 79 3 #4 90 110

090B

575 66 3 #4 80 90 66 3 #4 80 90

208 188 3 3/0 225 250 218 3 4/0 250 300 230 188 3 3/0 225 250 218 3 4/0 250 250 380 98 3 #3 110 125 130 3 #1 150 175 460 79 3 #4 90 110 99 3 #3 125 125

100B

575 66 3 #4 80 90 77 3 #4 90 100

208 218 3 4/0 250 300 218 3 4/0 250 300 230 218 3 4/0 250 250 218 3 4/0 250 250 380 130 3 #1 150 175 130 3 #1 150 175 460 99 3 #3 125 125 99 3 #3 125 125

110B

575 77 3 #4 90 100 77 3 #4 90 100

208 203 3 4/0 250 250 273 3 300 300 300 230 203 3 3/0 225 225 273 3 300 300 300 380 123 3 #1 150 150 146 3 1/0 175 200 460 92 3 #3 110 110 114 3 #1 150 175

120B

575 83 3 #4 100 100 94 3 #3 110 125

208 273 3 300 300 300 273 3 300 300 300 230 273 3 300 300 300 273 3 300 300 300 380 146 3 1/0 175 175 146 3 1/0 175 175 460 114 3 #1 125 125 114 3 #1 125 125

130B

575 94 3 #3 110 110 94 3 #3 110 110

208 317 3 300 400 400 317 3 400 400 400 230 317 3 300 400 400 318 3 400 400 400 380 146 3 1/0 175 175 187 3 2/0 225 225 460 114 3 #1 125 125 141 3 1/0 175 175

140B

575 94 3 #3 110 110 110 3 #2 125 125

208 317 3 400 400 400 317 3 400 400 400 230 318 3 400 400 400 318 3 400 400 400 380 187 3 2/0 225 225 187 3 2/0 225 225 460 141 3 1/0 175 175 141 3 1/0 175 175

155B

575 110 3 #2 125 125 110 3 #2 125 125



Table 25, ACZ 030B - 065B, Multi-Point, Field Wiring Data Wiring to Standard


Non-Fused Disconnect Switch Terminal

Amps Connector Wire Range

(Copper Wire Only) Disconnect

Size Connector Wire Range

(Copper Wire Only)

ACZ Unit Size

Volts

Cir #1 Cir #2 Cir #1 Cir #2 Cir #1 Cir #2 Cir #1 Cir #2 208 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0 230 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0 380 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0 460 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

030B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

208 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0 230 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0 380 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0 460 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

035B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0


040B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0


045B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0


050B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0


055B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0


060B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0


065B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0



Table 26, ACZ 070B - 155B, Multi-Point, Field Wiring Data Wiring to Standard


Non-Fused Disconnect Switch Terminal

Amps Connector Wire Range

(Copper Wire Only) Disconnect

Size Connector Wire Range

(Copper Wire Only)

ACZ Unit Size

Volts

Cir #1 Cir #2 Cir #1 Cir #2 Cir #1 Cir #2 Cir #1 Cir #2 208 380 380 #4 – 500 kcmil #4 – 500 kcmil 225 225 #4 – 300 kcmil #4 – 300 kcmil 230 380 380 #4 – 500 kcmil #4 – 500 kcmil 225 225 #4 – 300 kcmil #4 – 300 kcmil 380 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0 460 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

070B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

208 380 380 #4 – 500 kcmil #4 – 500 kcmil 225 225 #4 – 300 kcmil #4 – 300 kcmil 230 380 380 #4 – 500 kcmil #4 – 500 kcmil 225 225 #4 – 300 kcmil #4 – 300 kcmil 380 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0 460 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

080B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

208 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 250 #4 – 300 kcmil #4 – 300 kcmil 230 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 250 #4 – 300 kcmil #4 – 300 kcmil 380 175 175 14 GA – 2/0 14 GA – 2/0 250 250 #4 – 300 kcmil #4 – 300 kcmil 460 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

090B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0


100B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0


110B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

208 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 400 #4 – 300 kcmil 250 – 500 kcmil 230 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 400 #4 – 300 kcmil 250 - 500 kcmil 380 175 175 14 GA – 2/0 14 GA – 2/0 150 250 #14 - 1/0 #4 – 300 kcmil 460 175 175 14 GA – 2/0 14 GA – 2/0 150 250 #14 - 1/0 #4 – 300 kcmil

120B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

208 380 380 #4 – 500 kcmil #4 – 500 kcmil 400 400 250 – 500 kcmil 250 – 500 kcmil 230 380 380 #4 – 500 kcmil #4 – 500 kcmil 400 400 250 – 500 kcmil 250 - 500kcmil 380 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 250 #4 – 300 kcmil #4 - 300kcmil 460 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 250 #4 – 300 kcmil #4 - 300kcmil

130B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

208 380 380 #4 – 500 kcmil #4 – 500 kcmil 400 400 250 – 500 kcmil 250 - 500 kcmil 230 380 380 #4 – 500 kcmil #4 – 500 kcmil 400 400 250 – 500 kcmil 250 – 500 kcmil 380 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 250 #4 – 300 kcmil #4 – 300 kcmil 460 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 250 #4 – 300 kcmil #4 – 300 kcmil

140B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0

208 380 380 #4 – 500 kcmil #4 – 500 kcmil 400 400 250 – 500 kcmil 250 – 500 kcmil 230 380 380 #4 – 500 kcmil #4 – 500 kcmil 400 400 250 – 500 kcmil 250 – 500 kcmil 380 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 250 #4 – 300 kcmil #4 – 300 kcmil 460 380 380 #4 – 500 kcmil #4 – 500 kcmil 250 250 #4 – 300 kcmil #4 – 300 kcmil

155B

575 175 175 14 GA – 2/0 14 GA – 2/0 150 150 #14 - 1/0 #14 - 1/0



Electrical Data, High Ambient

Table 27, ACZ 030BH – 065BH, Electrical Data, Single Point (Above 105°F to 115°F)

Power Supply Field Wire ACZ Unit

Size Volts

Minimum Circuit

Ampacity (MCA) Quantity

Wire Gauge

75C


Size

208 147 3 1/0 175 230 133 3 1/0 150 380 80 3 #4 90 460 68 3 #4 80

030B

575 53 3 #6 60 208 158 3 2/0 175 230 144 3 1/0 175 380 88 3 #3 100 460 74 3 #4 90

035B

575 59 3 #6 70 208 168 3 2/0 200 230 155 3 2/0 175 380 96 3 #3 110 460 80 3 #4 90

040B

575 64 3 #6 70 208 187 3 3/0 200 230 167 3 2/0 200 380 113 3 #2 125 460 84 3 #4 90

045B

575 70 3 #4 80 208 207 3 4/0 225 230 188 3 3/0 225 380 123 3 #1 125 460 94 3 #3 110

050B

575 78 3 #4 90 208 226 3 4/0 225 230 207 3 3/0 225 380 132 3 1/0 150 460 104 3 #2 125

055B

575 86 3 #3 100 208 249 3 250 250 230 229 3 4/0 250 380 147 3 1/0 175 460 115 3 #2 125

060B

575 96 3 #3 110 208 270 3 300 300 230 248 3 250 250 380 160 3 2/0 175 460 124 3 #1 150

065B

575 105 3 #2 125 NOTES: 1. See page 46 for all Electrical Data notes. 2. Conduit hubs are not provided.


Table 28, ACZ 030BH – 065BH, Compressor & Fan Motor Amps, Single & Multi-Point Rated Load Amps Locked Rotor Amps


ACZ Unit Size

Volts No. 1 No. 3 No. 2 No. 4

Fan Motors (Each)

No. Of Fan

Motors Fan

Motors (Each) No. 1 No. 3 No. 2 No. 4

208 29.0 29.0 29.0 29.0 5.8 4 23.3 189 189 189 189 230 25.7 25.7 25.7 25.7 5.8 4 26.1 189 189 189 189 380 14.9 14.9 14.9 14.9 4.1 4 20.0 112 112 112 112 460 13.4 13.4 13.4 13.4 2.8 4 13.0 99 99 99 99

030B

575 9.5 9.5 9.5 9.5 3.0 4 14.0 74 74 74 74 208 29.0 29.0 34.0 34.0 5.8 4 23.3 189 189 232 232 230 25.7 25.7 30.9 30.9 5.8 4 26.1 189 189 232 232 380 14.9 14.9 18.6 18.6 4.1 4 20.0 112 112 144 144 460 13.4 13.4 16.2 16.2 2.8 4 13.0 99 99 125 125

035B

575 9.5 9.5 12.2 12.2 3.0 4 14.0 74 74 100 100 208 34.0 34.0 34.0 34.0 5.8 4 23.3 232 232 232 232 230 30.9 30.9 30.9 30.9 5.8 4 26.1 232 232 232 232 380 18.6 18.6 18.6 18.6 4.1 4 20.0 144 144 144 144 460 16.2 16.2 16.2 16.2 2.8 4 13.0 125 125 125 125

040B

575 12.2 12.2 12.2 12.2 3.0 4 14.0 100 100 100 100 208 38.5 38.5 38.5 38.5 5.8 4 23.3 278 278 278 278 230 33.8 33.8 33.8 33.8 5.8 4 26.1 278 278 278 278 380 22.8 22.8 22.8 22.8 4.1 4 20.0 151 151 151 151 460 17.0 17.0 17.0 17.0 2.8 4 13.0 127 127 127 127

045B

575 13.7 13.7 13.7 13.7 3.0 4 14.0 100 100 100 100 208 38.5 38.5 47.6 47.6 5.8 4 23.3 278 278 350 350 230 33.8 33.8 43.3 43.3 5.8 4 26.1 278 278 350 350 380 22.8 22.8 27.2 27.2 4.1 4 20.0 151 151 195 195 460 17.0 17.0 21.8 21.8 2.8 4 13.0 127 127 158 158

050B

575 13.7 13.7 17.3 17.3 3.0 4 14.0 100 100 125 125 208 47.6 47.6 47.6 47.6 5.8 4 23.3 350 350 350 350 230 43.3 43.3 43.3 43.3 5.8 4 26.1 350 350 350 350 380 27.2 27.2 27.2 27.2 4.1 4 20.0 195 195 195 195 460 21.8 21.8 21.8 21.8 2.8 4 13.0 158 158 158 158

055B

575 17.3 17.3 17.3 17.3 3.0 4 14.0 125 125 125 125 208 47.6 47.6 58.1 58.1 5.8 4 23.3 350 350 425 425 230 43.3 43.3 52.8 52.8 5.8 4 26.1 350 350 425 425 380 27.2 27.2 33.8 33.8 4.1 4 20.0 195 195 239 239 460 21.8 21.8 26.5 26.5 2.8 4 13.0 158 158 187 187

060B

575 17.3 17.3 21.8 21.8 3.0 4 14.0 125 125 148 148 208 58.1 58.1 58.1 58.1 5.8 4 23.3 425 425 425 425 230 52.8 52.8 52.8 52.8 5.8 4 26.1 425 425 425 425 380 33.8 33.8 33.8 33.8 4.1 4 20.0 239 239 239 239 460 26.5 26.5 26.5 26.5 2.8 4 13.0 187 187 187 187

065B

575 21.8 21.8 21.8 21.8 3.0 4 14.0 148 148 148 148 NOTE: See page 46 for all Electrical Data notes.


Table 29, ACZ 070BH – 155BH, Compressor and Fan Motor Amps, Single and Multi-Point (Above 105°F to 125°F)

Rated Load Amps Locked Rotor Amps Compressors Compressors

Across-The-Line ACZ Unit Size


F.L.AmpsFan

Motors (Each)

No. of

Fan Motors

R.L.Amps Fan

Motors (Each) No.1 No. 3 No. 5 No.2 No.4 No. 6

208 58.1 58.1 - 58.1 78.0 - 7.8 4 31.7 425 425 - 425 505 - 230 52.8 52.8 - 52.8 74.1 - 7.8 4 35.6 425 425 - 425 505 - 380 32.7 32.7 - 32.7 39.8 - 4.1 4 20.0 239 239 - 239 280 - 460 25.5 25.5 25.5 37.5 - 3.6 4 17.8 187 187 - 187 225 -

070B

575 21.8 21.8 - 21.8 29.9 - 3.0 4 14.0 148 148 - 148 180 - 208 58.1 78.0 - 58.1 78.0 - 7.8 4 31.7 425 505 - 425 505 - 230 52.8 74.1 - 52.8 74.1 - 7.8 4 35.6 425 505 - 425 505 - 380 32.7 39.8 - 32.7 39.8 - 4.1 4 20.0 239 280 - 239 280 - 460 25.5 37.5 - 25.5 37.5 - 3.6 4 17.8 187 225 - 187 225 -

080B

575 21.8 29.9 - 21.8 29.9 - 3.0 4 14.0 148 180 - 148 180 - 208 78.0 78.0 78.0 78.0 - 7.8 6 31.7 505 505 - 505 505 - 230 74.1 74.1 - 74.1 74.1 - 7.8 6 35.6 505 505 - 505 505 - 380 39.8 39.8 - 39.8 39.8 - 4.1 6 20.0 280 280 - 280 280 - 460 38.8 38.8 - 38.8 38.8 - 3.6 6 17.8 225 225 - 225 225 -

090B

575 29.9 29.9 - 29.9 29.9 - 3.0 6 14.0 180 180 - 180 180 - 208 78.0 78.0 - 86.9 86.9 - 7.8 6 31.7 505 505 - 500 500 - 230 74.1 74.1 - 83.3 83.3 - 7.8 6 35.6 505 505 - 500 500 - 380 39.8 39.8 - 57.6 57.6 - 4.1 6 20.0 280 280 - 305 305 - 460 38.8 38.8 - 44.5 44.5 - 3.6 6 17.8 225 225 - 250 250 -

100B

575 29.9 29.9 - 32.5 32.5 - 3.0 6 14.0 180 180 - 198 198 - 208 86.9 86.9 - 86.9 86.9 - 7.8 6 31.7 500 500 - 500 500 - 230 83.3 83.3 - 83.3 83.3 - 7.8 6 35.6 500 500 - 500 500 - 380 57.6 57.6 - 57.6 57.6 - 4.1 6 20.0 305 305 - 305 305 - 460 44.5 44.5 44.5 44.5 - 3.6 6 17.8 250 250 - 250 250 -

110B

575 32.5 32.5 - 32.5 32.5 - 3.0 6 14.0 198 198 - 198 198 - 208 58.1 58.1 58.1 87.9 87.9 87.9 7.8 8 31.7 425 425 425 505 505 505 230 52.8 52.8 52.8 74.2 74.2 74.2 7.8 8 35.6 425 425 425 505 505 505 380 32.7 32.7 32.7 43.8 43.8 43.8 4.1 8 20.0 239 239 239 280 280 280 460 25.5 25.5 25.5 37.5 37.5 37.5 3.6 8 17.8 187 187 187 225 225 225

120B

575 21.8 21.8 21.8 29.9 29.9 29.9 3.0 8 14.0 148 148 148 180 180 180 208 87.9 87.9 87.9 87.9 87.9 87.9 7.8 8 31.7 505 505 505 505 505 505 230 74.2 74.2 74.2 74.2 74.2 74.2 7.8 8 35.6 505 505 505 505 505 505 380 43.8 43.8 43.8 43.8 43.8 43.8 4.1 8 20.0 280 280 280 280 280 280 460 37.5 37.5 37.5 37.5 37.5 37.5 3.6 8 17.8 225 225 225 225 225 225

130B

575 29.9 29.9 29.9 29.9 29.9 29.9 3.0 8 14.0 180 180 180 180 180 180 208 87.9 87.9 87.9 88.0 88.0 88.0 7.8 8 31.7 505 505 505 500 500 500 230 74.2 74.2 74.2 88.0 88.0 88.0 7.8 8 35.6 505 505 505 500 500 500 380 43.8 43.8 43.8 57.6 57.6 57.6 4.1 8 20.0 280 280 280 305 305 305 460 37.5 37.5 37.5 44.5 44.5 44.5 3.6 8 17.8 225 225 225 250 250 250

140B

575 29.9 29.9 29.9 32.5 32.5 32.5 3.0 8 14.0 180 180 180 198 198 198 208 88.0 88.0 88.0 88.0 88.0 88.0 7.8 8 31.7 500 500 500 500 500 500 230 88.0 88.0 88.0 88.0 88.0 88.0 7.8 8 35.6 500 500 500 500 500 500 380 57.6 57.6 57.6 57.6 57.6 57.6 4.1 8 20.0 305 305 305 305 305 305 460 44.5 44.5 44.5 44.5 44.5 44.5 3.6 8 17.8 250 250 250 250 250 250

155B

575 32.5 32.5 32.5 32.5 32.5 32.5 3.0 8 14.0 198 198 198 198 198 198 NOTE: See page 46 for all Electrical Data notes.


Table 30, ACZ 030BH - 065BH, Electrical Data, Multi-Point (Above 105°F to 125°F)

Electrical Circuit #1 Electrical Circuit #2 Power Supply Power Supply

Field Wire Field Wire ACZ Unit Size

Volts Minimum

Circuit Ampacity

(MCA) Qty Wire

Gauge75C


Size

MinimumCircuit

Ampacity(MCA) Qty

Wire Gauge

75C


Size

208 77 3 #4 100 77 3 #4 100 230 70 3 #4 90 70 3 #4 90 380 42 3 #8 50 40 3 #8 50 460 36 3 #8 45 36 3 #8 45

030B

575 27 3 #10 35 27 3 #10 35 208 77 3 #4 100 88 3 #3 110 230 70 3 #4 90 81 3 #4 110 380 42 3 #8 50 50 3 #8 60 460 36 3 #8 45 42 3 #8 50

035B

575 27 3 #10 35 34 3 #10 45 208 88 3 #3 110 88 3 #3 110 230 81 3 #4 110 81 3 #4 110 380 50 3 #8 60 50 3 #8 60 460 42 3 #8 50 42 3 #8 50

040B

575 34 3 #10 45 34 3 #10 45 208 98 3 #3 125 98 3 #3 125 230 88 3 #3 110 88 3 #3 110 380 60 3 #6 80 60 3 #6 80 460 44 3 #8 60 44 3 #8 60

045B

575 37 3 #8 50 37 3 #8 50 208 98 3 #3 125 119 3 #1 150 230 88 3 #3 110 109 3 #2 150 380 60 3 #6 80 70 3 #4 90 460 44 3 #8 60 55 3 #6 70

050B

575 37 3 #8 50 45 3 #8 60 208 119 3 #1 150 119 3 #1 150 230 109 3 #2 150 109 3 #2 150 380 70 3 #4 90 70 3 #4 90 460 55 3 #6 70 55 3 #6 70

055B

575 45 3 #8 60 45 3 #8 60 208 119 3 #1 150 142 3 1/0 200 230 109 3 #2 150 130 3 #1 175 380 70 3 #4 90 84 3 #4 110 460 55 3 #6 70 65 3 #4 90

060B

575 45 3 #8 60 55 3 #6 70 208 142 3 1/0 200 142 3 1/0 200 230 130 3 #1 175 130 3 #1 175 380 84 3 #4 110 84 3 #4 110 460 65 3 #4 90 65 3 #4 90

065B

575 55 3 #6 70 55 3 #6 70 Notes: 1. See page 46 for all Electrical Data notes. 2. Conduit hubs are not supplied.


Table 31, ACZ 070BH – 155BH, Electrical Data, Multi-Point (Above 105°F to 125°F)

Electrical Circuit #1 Electrical Circuit #2 Power Supply

Power Supply

Field Wire Field Wire ACZ Unit Size

Volts Minimum

Circuit Ampacity

(MCA) Qty Wire

Gauge75C


Size

MinimumCircuit

Ampacity(MCA) Qty

Wire Gauge

75C


Size

208 146 3 1/0 200 171 3 2/0 225 230 134 3 1/0 175 161 3 2/0 225 380 82 3 #4 110 91 3 #3 125 460 67 3 #6 90 80 3 #4 110

070B

575 55 3 #6 70 65 3 #6 90 208 171 3 2/0 225 171 3 2/0 225 230 161 3 2/0 225 161 3 2/0 225 380 91 3 #3 125 91 3 #3 125 460 80 3 #4 110 80 3 #4 110

080B

575 65 3 #6 90 65 3 #6 90 208 199 3 3/0 250 199 3 3/0 250 230 190 3 3/0 250 190 3 3/0 250 380 102 3 #2 125 102 3 #2 125 460 99 3 #3 125 99 3 #3 125

090B

575 76 3 #4 100 76 3 #4 100 208 199 3 3/0 250 219 3 4/0 300 230 190 3 3/0 250 211 3 4/0 250 380 102 3 #2 125 142 3 1/0 175 460 99 3 #3 125 111 3 #2 150

100B

575 76 3 #4 100 83 3 #3 110 208 219 3 4/0 300 219 3 4/0 300 230 211 3 4/0 250 211 3 4/0 250 380 142 3 1/0 175 142 3 1/0 175 460 111 3 #2 150 111 3 #2 150

110B

575 83 3 #3 110 83 3 #3 110 208 220 3 4/0 250 317 3 400 400 230 203 3 4/0 250 272 3 300 300 380 123 3 #1 150 159 3 2/0 200 460 101 3 #2 125 136 3 1/0 175

120B

575 83 3 #4 100 109 3 #2 125 208 317 3 400 400 317 3 400 400 230 272 3 300 300 272 3 300 300 380 159 3 2/0 200 159 3 2/0 200 460 136 3 1/0 175 136 3 1/0 175

130B

575 109 3 #2 125 109 3 #2 125 208 317 3 400 400 317 3 400 400 230 272 3 300 300 317 3 400 400 380 159 3 2/0 200 204 3 4/0 250 460 136 3 1/0 175 159 3 2/0 200

140B

575 109 3 #2 125 118 3 #1 150 208 317 3 400 400 317 3 400 400 230 317 3 400 400 317 3 400 400 380 204 3 4/0 250 204 3 4/0 250 460 159 3 2/0 200 159 3 2/0 200

155B

575 118 3 #1 150 118 3 #1 150 NOTES: 1. See page 46 for all Electrical Data notes. 2. Conduit hubs are not supplied.


Table 32, ACZ 070BH – 155BH, Electrical Data, Single Point (Above 105°F to 125°F)

Power Supply Field Wire ACZ Unit

Size Volts

Minimum Circuit

Ampacity (MCA) Quantity

Wire Gauge

75C


Size

208 303 3 350 350 230 282 3 300 350 380 164 3 2/0 200 460 138 3 1/0 175

070B

575 115 3 #2 125 208 323 3 400 400 230 304 3 350 350 380 172 3 2/0 200 460 150 3 1/0 175

080B

575 123 3 #1 150 208 378 6 250 450 230 362 6 4/0 400 380 194 3 3/0 225 460 187 3 3/0 225

090B

575 145 3 1/0 175 208 398 6 250 450 230 382 6 250 450 380 234 3 250 250 460 200 3 4/0 225

100B

575 151 3 1/0 175 208 416 6 300 500 230 401 6 350 450 380 270 3 300 300 460 211 3 4/0 250

110B

575 157 3 2/0 175 208 522 6 400 600 230 462 6 350 500 380 273 3 300 300 460 230 3 4/0 250

120B

575 187 3 3/0 200 208 612 6 - (2) 350 700 230 526 6 - (2) 300 600 380 307 3 350 350 460 263 3 300 300

130B

575 211 3 4/0 225 208 612 6 - (2) 350 700 230 571 6 - (2) 350 600 380 352 6 - (2) 4/0 400 460 286 3 350 300

140B

575 219 3 4/0 250 208 613 6 - (2) 350 700 230 613 6 - (2) 350 700 380 393 6 250 450 460 307 3 350 350

155B

575 228 3 250 250 NOTES: 1. See page 46 for all Electrical Data notes. 2. (2) in column with wire qty. indicates that two conduits are required. 3. Conduit hubs are not supplied.


Notes for “Electrical Data Single-and Multi-Point” Power: 1. Unit wire size ampacity (MCA) is equal to 125% of the largest compressor-motor RLA

plus 100% of RLA of all other loads in the circuit including the control transformer. 2. The control transformer is furnished and no separate 115V power is required. On ACZ

030B through 155B, for both single- and multi-point power connections, the control transformer is in circuit #1 with control power wired from there to circuit #2. In multi-point power, disconnecting power to circuit #1 will disconnect all control power to the unit.

3. If a separate 115V power supply is used for the control circuit, then the wire sizing amps is 10 amps for all unit sizes.

4. Recommended power lead wire sizes for 3 conductors per conduit are based on 100% conductor ampacity in accordance with NEC. Voltage drop has not been included. Therefore, it is recommended that power leads be kept short. All terminal block connections must be made with copper (type THW) wire.

5. “Recommended Fuse Sizes” are selected at approximately 150% to 175% of the largest compressor RLA, plus 100% of all other loads in the circuit.

6. “Maximum Fuse or HACR breaker size” is selected at approximately 225% of the largest compressor RLA, plus 100% of all other loads in the circuit.

7. The recommended power lead wire sizes are based on an ambient temperature of 86°F (30°C). Ampacity correction factors must be applied for other ambient temperatures. Refer to the National Electrical Code Handbook.

8. Must be electrically grounded according to national and local electrical codes.

Voltage Limitations: Within ± 10 percent of nameplate rating

Important: Voltage unbalance not to exceed 2% with a resultant current unbalance of 6 to 10 times the voltage unbalance per NEMA MG-1, 1998 Standard. This is an important restriction that must be adhered to.

Notes for “Compressor and Condenser Fan Amp Draw”: 1. Compressor RLA values are for wiring sizing purposes only but do not reflect normal

operating current draw at rated capacity.

Notes for “Field Wiring Data” 1. Requires a single disconnect to supply electrical power to the unit. This power supply

must either be fused or use an HACR type circuit breaker. 2. All field wiring to unit power block or optional non-fused disconnect switch must be

copper. 3. All field wire size values given in table apply to 75°C rated wire per NEC. Circuit Breakers (ACZ 030 to 155 only) Factory installed circuit breakers are standard on units with single point power supply only. This option provides unit installed compressor short circuit protection and makes servicing easier.

Connection Type Power Block Disconnect Swt.

Circuit Breakers

High Short Circuit Current

Single Point (Standard) Std Opt. Std Opt Multi-Point (Optional) Std Opt. Not Avail. Opt.


Figure 12, ACZ 010 – 039A, Typical Single-Point Field Wiring

DWG. 330539401 REV.0B

TO COMPRESSOR(S)AND FAN MOTORS

DISCONNECT(BY OTHERS)

3 PHASEPOWER

120VACCONTROL POWER

GND LUGUNIT MAINTERMINAL

BLOCK

FUSED CONTROLCIRCUIT

TRANSFORMER120

VAC

TB1

TB1-20

CONTROLCIRCUIT

FUSE2

1

NOTE: ALL FIELD WIRINGTO BE INSTALLED AS NECCLASS 1 WIRING SYSTEMWITH CONDUCTOR RATED600 VOLTS

SUPPLY

GND

ALARM BELL RELAY

FACTORY SUPPLIED ALARMFIELD WIRED

ALARM BELLOPTION 11

17

120 VAC


N10A

FUSE

(BY OTHERS)

17

12N

120 VAC

DX EVAP. FAN PUMP RELAY(BY OTHERS)

120 VAC 1.0 AMP MAX

SV514

16

HOT GAS BYPASS SOLENOID120 VAC 1.0 AMP MAX

SV113

120 VAC

120 VAC

LIQUID LINE SOLENOID120 VAC 1.0 AMP MAX

22

31

ALARM BELLRELAY

ALARM BELL OPTION

COM NO

TB2

25

35

AUTOTIME

CLOCK OFF

ON

MANUAL

REMOTE STOPSWITCH

(BY OTHERS)

IF REMOTE STOP CONTROLIS USED, REMOVE LEAD 843FROM TERM. 25 TO 35.

843

BELL

1 2

26

36

EVAP. FLOW SWITCH---MANDATORY–-

(BY OTHERS)

NOR. OPEN PUMP AUX.CONTACTS (OPTIONAL)

23

J5-ID7

STAGE 1 NOR. OPEN CONTACTORS

28

J5-ID8

STAGE 2 NOR. OPEN CONTACTORS

33

34


Figure 13, ACZ 030 – 155B, Field Wiring Diagram

LABEL DWG. 330423201 REV.0D

TO COMPRESSOR(S)AND FAN MOTORS


3 PHASE

POWER

120VACCONTROL POWER

GND LUGUNIT MAIN

TERMINAL BLOCK

FUSED CONTROLCIRCUIT TRANSFORMER

120 VAC

TB1

TB1-20

DX EVAP FAN RELAY(BY OTHERS)

120 VAC 1.0 AMP MAX


N

FIELD SUPPLIEDOPTION

10AFUSE

(BY OTHERS)CONTROLCIRCUITFUSE

120 VAC

GND

ALARM BELL RELAY

FACTORY SUPPLIED ALARMFIELD WIRED

ALARM BELLOPTION

CONTROLLER

34

32

2

1

N

120 VAC

33

35

NOTE 1:ALL FIELD WIRING TO BEINSTALLED AS NEC CLASS 1WIRING SYSTEM WITH CONDUCTORRATED 600 VOLTS

TB2

4-20MA FORDEMAND LIMIT(BY OTHERS)

IF REMOTE STOPCONTROL IS USED,REMOVE LEAD 585FROM TERM. 52 TO 72.

585

AUTO

REMOTE STOP SWITCH(BY OTHERS)

TIMECLOCK

52

72

71

70

OFF

ON

MANUAL

ALARM BELLRELAY

ALARM BELL OPTION1 2

COM NO43

83

EVAP FLOW SWITCH---MANDATORY–-

(BY OTHERS)

NOR. OPEN PUMP AUX.CONTACTS (OPTIONAL)

44

61

GND

N93

91

N97

96

24 VAC

24 VAC

LIQUID LINE #1 SOLENOID24 VAC 1.5 AMP MAX.

HOT GAS BYPASS #2 SOLENOID24 VAC 1.0 AMP MAX.

N97

95 24 VAC

HOT GAS BYPASS #1 SOLENOID24 VAC 1.0 AMP MAX.

N93

92 24 VAC

LIQUID LINE #2 SOLENOID24 VAC 1.5 AMP MAX.

LESS EVAPORATOR ONLY

+-

NOTE 3:WHEN CONNECTED TOEVAPORATORS USINGOPTIONAL CIRCUIT CONTROL,STAGES 1-3 ACTIVATECOMPRESSORS FORCONDENSING UNIT CIRCUIT #1AND STAGES 4-6 ACTIVATECOMPRESSORS FORCONDENSING UNIT CIRCUIT #2.

STAGING OPERATION IN UNITSEQUENCING SETTING

TB3

103

104

101

102

105

106

107

108

109

110

111

112

1ST COMPR. - OPPOSITE CIRCUIT

1ST COMPR. - EITHER CIRCUIT

2ND COMPR. - INITIAL CIRCUIT

2ND COMPR. - OPPOSITE CIRCUIT

3RD COMPR. - INITIAL CIRCUIT

3RD COMPR. - OPPOSITE CIRCUIT

STAGE 2

STAGE 1

STAGE 3

STAGE 4

STAGE 5

STAGE 6

STAGING OPERATION IN CIRCUITSEQUENCING SETTING

UNITCIRCUIT #1

UNITCIRCUIT #2

(SEE NOTE 3)

TB3

103

104

101

102

105

106

107

108

109

110

111

112

2ND COMPR. - CIRCUIT #1

1ST COMPR. - CIRCUIT #1

3RD COMPR. - CIRCUIT #1

1ST COMPR. - CIRCUIT #2

2ND COMPR. - CIRCUIT #2

3RD COMPR. - CIRCUIT #3

STAGE 2

STAGE 1

STAGE 3

STAGE 4

STAGE 5

STAGE 6

54

J20-ID18

(SEE NOTE 2)

NOTE 2:EVAP. AIR FLOW SWITCH ORFAN AUX. CONTACT FORCIRCUIT #2 FAN WHEN UNIT ISSET FOR CIRCUIT SEQUENCINGMODE.


Physical Data

ACZ-A Table 33, Physical Data, ACZ 010A through 020A

ACZ MODEL NUMBER PHYSICAL DATA

010A 013A 016A 020A BASIC DATA

Number Of Refrigerant Circuits 1 1 1 1 Unit Operating Charge, R-22, Lb. (kg) 22.0 (10.0) 22.0 (10.0) 24.0 (10.9) 31.0 (14.1)

Cabinet Dimensions, LxWxH, In. 73.6 x 46.3 x 50.8

73.6 x 46.3 x 50.8

73.6 x 46.3 x 50.8

73.6 x 46.3 x 50.8

Cabinet Dimensions, LxWxH, (mm) (1869) x (1176) x (1289)

(1869) x (1176) x (1289)

(1869) x (1176) x (1289)

(1869) x (1176) x (1289)

Unit Operating Weight, Lbs. (kg) 1000 (454) 1000 (454) 1220 (554) 1340 (608) Unit Shipping Weight, Lbs. (kg) 1080 (490) 1080 (490) 1300 (590) 1420 (645) Add'l Weight If Copper Finned Coils, Lb. (kg) 220 (99.7) 220 (99.7) 220 (99.7) 220 (99.7)

COMPRESSORS Type Scroll Scroll Scroll Scroll Nominal Horsepower 4.0 / 4.0 6.0 / 6.0 7.5 / 7.5 9.0 / 9.0 Oil Charge Per Compressor, Oz. (g) 57 (1616) 60 (1701) 140 (3969) 140 (3969) CAPACITY REDUCTION STEPS - PERCENT OF COMPRESSOR DISPLACEMENT

Standard Staging 0 – 50 – 100 0 – 50 – 100 0 – 50 – 100 0 – 50 – 100

CONDENSERS - HIGH EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area, Sq. Ft. (M2) 30.3 (2.8) 30.3 (2.8) 30.3 (2.8) 30.3 (2.8) Finned Height x Finned Length, In. 84 x 52 84 x 52 84 x 52 84 x 52 Finned Height x Finned Length, (mm) (2134) x (1321) (2134) x (1321) (2134) x (1321) (2134) x (1321) Fins Per Inch x Rows Deep 16 x 2 16 x 2 16 x 3 16 x 3 Pumpdown Capacity lb. (kg) 35.3 (16.0) 35.3 (16.0) 50.3 (22.8) 50.3 (22.8)

CONDENSER FANS - DIRECT DRIVE PROPELLER TYPE Number Of Fans - Fan Diameter, In. (mm) 2 – 26 (660) 2 – 26 (660) 2 – 26 (660) 2 – 26 (660) Number Of Motors - HP (kW) 2 – 1.0 (0.75) 2 – 1.0 (0.75) 2 – 1.0 (0.75) 2 – 1.0 (0.75) Fan And Motor RPM, 60 Hz 1140 1140 1140 1140 60 Hz Total Unit Airflow, CFM (l/s) 13950 (6584) 13950 (6584) 12000 (5664) 12000 (5664)


Table 34, Physical Data, ACZ 025A through 039A ACZ MODEL NUMBER

PHYSICAL DATA 025A 028A 033A 039A

BASIC DATA

Number Of Refrigerant Circuits 1 1 1 1 Unit Operating Charge, R-22, Lb. (kg) 34.0 (15.4) 36.0 (16.3) 47.0 (21.3) 50.0 (22.7)

Cabinet Dimensions, LxWxH, In. 106.2x 46.3 x 50.8

106.2x 46.3 x 50.8

106.2x 46.3 x 58.8

106.2x 46.3 x 58.8

Cabinet Dimensions, LxWxH, (mm) (2697) x (1176) x (1289)

(2697) x (1176) x (1289)

(2697) x (1176) x (1493)

(2697) x (1176) x (1493)

Unit Operating Weight, Lbs. (kg) 1470 (667) 1490 (676) 1760 (799) 1960 (890) Unit Shipping Weight, Lbs. (kg) 1580 (717) 1600 (726) 1890 (858) 2090 (949) Add'l Weight If Copper Finned Coils, Lb. (kg) 350 (159) 350 (159) 435 (197) 435 (197)

COMPRESSORS Type Scroll Scroll Scroll Scroll Nominal Horsepower 10.0 / 13.0 13.0 / 13.0 15.0 / 15.0 20.0 / 20.0 Oil Charge Per Compressor, Oz. (g) 140 (3969) 140 (3969) 140 (3969) 296 (8392)

CAPACITY REDUCTION STEPS - PERCENT OF COMPRESSOR DISPLACEMENT Standard Staging 0 – 45 - 100 0 – 50 – 100 0 – 50 – 100 0 – 50 – 100

CONDENSERS - HIGH EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area, Sq. Ft. (M2) 49.0 (4.6) 49.0 (4.6) 58.3 (5.4) 58.3 (5.4) Finned Height x Finned Length, In. 84 x 84 84 x 84 100 x 84 100 x 84 Finned Height x Finned Length, (mm) (2134) x (2134) (2134) x (2134) (2545) x (2134) (2545) x (2134)Fins Per Inch x Rows Deep 16 x 2 16 x 2 16 x 3 16 x 3 Pumpdown Capacity lb. (kg) 53.1 (24.0) 53.1 (24.0) 90.7 (41.1) 92.8 (42.0)

CONDENSER FANS - DIRECT DRIVE PROPELLER TYPE Number Of Fans - Fan Diameter, In. (mm) 3 – 26 (660) 3 – 26 (660) 3 – 26 (660) 3 – 26 (660) Number Of Motors - HP (kW) 3 – 1.0 (0.75) 3 – 1.0 (0.75) 3 – 1.0 (0.75) 3 – 1.0 (0.75) Fan And Motor RPM, 60 Hz 1140 1140 1140 1140 60 Hz Total Unit Airflow, CFM (l/s) 20925 (9877) 20925 (9877) 19800 (9346) 19800 (9346)


Table 35, ACZ 030B through 040B ACZ MODEL NUMBER PHYSICAL DATA

030B 035B 040B BASIC DATA Ckt.1 Ckt.2 Ckt.1 Ckt.2 Ckt.1 Ckt.2 Number Of Refrigerant Circuits 2 2 2 Unit Operating Charge, R-22, Lbs. 24 24 26 26 29 29 Unit Operating Charge, R-22, (kg) 10 10 11 11 13 13 Cabinet Dimensions, LxWxH, In. 94.4 x 88.0 x 100.4 94.4 x 88.0 x 100.4 94.4 x 88.0 x 100.4Cabinet Dimensions, LxWxH, (mm) 2398 x 2235 x 2550 2398 x 2235 x 2550 2398 x 2235 x 2550Unit Operating Weight, Lb (kg) 3600 (1634) 3600 (1634) 3600 (1634) Unit Shipping Weight, Lb (kg) 3550 (1612) 3550 (1612) 3550 (1612) Add'l Weight If Copper Finned Coils, Lb (kg) 284 (129) 284 (129) 284 (129)

COMPRESSORS Type Tandem Scrolls Tandem Scrolls Tandem Scrolls Nominal tonnage of each Compressor 7.5 7.5 7.5 9.0 9.0 9.0 Number Of Compressors per Circuit 2 2 2 2 2 2 Oil Charge Per Compressor, Oz. 140 140 140 140 140 140 Oil Charge Per Compressor, (g) (496) (496) (496) (496) (496) (496)

CAPACITY REDUCTION STEPS - PERCENT OF COMPRESSOR DISPLACEMENT Staging, 4 Stages, Circuit #1 in Lead 0-25-50-75-100 0-23-50-73-100 0-25-50-75-100 Staging, 4 Stages, Circuit #2 in Lead 0-25-50-75-100 0-27-50-77-100 0-25-50-75-100

CONDENSERS - HIGH EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area, Sq. Ft. 26.3 26.3 26.3 26.3 26.3 26.3 Coil Face Area, (M2) 2.4 2.4 2.4 2.4 2.4 2.4 Finned Height x Finned Length, In. 50x75.6 50x75.6 50x75.6 50x75.6 50x75.6 50x75.6

Finned Height x Finned Length, (mm) 1270 x 1920

1270 x 1920

1270 x 1920

1270 x 1920

1270 x 1920

1270 x 1920

Fins Per Inch x Rows Deep 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 Pumpdown Capacity, 90% Full Lbs. (kg) 49 (22) 49 (22) 49 (22) 49 (22) 49 (22) 49 (22) Maximum Relief Valve Pressure Setting, psig (kPa)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

CONDENSER FANS - DIRECT DRIVE PROPELLER TYPE Number Of Fans - Fan Diameter, In. (mm) 4 – 30 (762) 4 – 30 (762) 4 – 30 (762) Number Of Motors - HP (kW) (Note 1) 4 – 1.0 4 – 1.0 4 – 1.0 Fan And Motor RPM, 60Hz 1140 1140 1140 60 Hz Fan Tip Speed, FPM (M/Sec) 8950 (4224) 8950 (4224) 8950 (4224) 60 Hz Total Unit Airflow, CFM (M3/sec) 24,316 (11,478) 24,316 (11,478) 24,316 (11,478)

NOTE: Except for 380V/60 & 575V/60, HP = 2.0



045B 050B 055B 060B BASIC DATA Ckt.1 Ckt.2 Ckt.1 Ckt.2 Ckt.1 Ckt.2 Ckt.1 Ckt.2 Number Of Refrigerant Circuits 2 2 2 2 Unit Operating Charge, R-22, lbs. 33 33 34 34 36 36 45 45 Unit Operating Charge, R-22, (kg) 15 15 15 15 16 16 20 20 Cabinet Dimensions, LxWxH, in. 94.4 x 88.0 x 100.4 94.4 x 88.0 x 100.4 94.4 x 88.0 x 100.4 94.4 x 88.0 x 100.4

Cabinet Dimensions, LxWxH, (mm) 2398 x 2235 x 2250

2398 x 2235 x 2250

2398 x 2235 x 2250

2398 x 2235 x 2250

Unit Operating Weight, Lbs. (kg) 3610 (1639) 3650 (1657) 3800 (1725) 3850 (1748) Unit Shipping Weight, Lbs. (kg) 3550 (1612) 3590 (1630) 3730 (1693) 3780 (1716) Add'l Weight If Copper Finned Coils, lbs. (kg) 288 (130) 288 (130) 476 (130) 476 (130)

COMPRESSORS Type Tandem Scrolls Tandem Scrolls Tandem Scrolls Tandem Scrolls Nominal tonnage of each Compressor 10.0 10.0 10.0 13.0 13.0 13.0 130 15.0 Number Of Compressors per Circuit 2 2 2 2 2 2 2 2 Oil Charge Per Compressor, oz. 140 140 140 140 140 140 140 140 Oil Charge Per Compressor, (g) (496) (496) (496) (496) (496) (496) (496) (496)

CAPACITY REDUCTION STEPS - PERCENT OF COMPRESSOR DISPLACEMENT Staging, 4 Stages, Circuit #1 in Lead 0-25-50-75-100 0-22-50-72-100 0-25-50-75-100 0-23-50-73-100 Staging, 4 Stages, Circuit #2 in Lead 0-25-50-75-100 0-28-50-78-100 0-25-50-75-100 0-27-50-77-100

CONDENSERS - HIGH EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area, sq. ft. 26.3 26.3 44.1 44.1 44.1 44.1 44.1 44.1 Coil Face Area (sq. M) 2.4 2.4 4.1 4.1 4.1 4.1 4.1 4.1 Finned Height x Finned Length, in. 50x75.6 50x75.6 42x75.6 42x75.6 42x75.6 42x75.6 42x75.6 42x75.6


1270 x 1920

1067 x 1920

1067 x 1920

1067 x 1920

1067 x 1920

1067 x 1920

1067 x 1920

Fins Per Inch x Rows Deep 16 x 3 16 x 3 16 x 2 16 x 2 16 x 2 16 x 2 16 x 3 16 x 3 Pumpdown Capacity, 90% Full Lbs. (kg) 49 (22) 49 (22) 60(27) 60(27) 60(27) 60(27) 82 (37) 82 (37) Maximum Relief Valve Pressure Setting, psig (kPa)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

CONDENSER FANS - DIRECT DRIVE PROPELLER TYPE Number Of Fans - Fan Diameter, in. (mm) 4 – 30 (762) 4 – 30 (762) 4 – 30 (762) 4 – 30 (762) Number Of Motors - HP (kW) (Note 1) 4 – 1.5 4 – 1.5 4 – 1.5 4 – 1.5 Fan And Motor RPM, 60Hz 1140 1140 1140 1140 60 Hz Fan Tip Speed, FPM (m/sec) 8950 (4224) 8950 (4224) 8950 (4224) 8950 (4224) 60 Hz Total Unit Airflow, CFM (m3/sec) 39,600 (18,692) 39,600 (18,692) 37,228 (17,572) 37,228 (17,572)




065B 070B 080B BASIC DATA Ckt.1 Ckt.2 Ckt.1 Ckt.2 Ckt.1 Ckt.2 Number Of Refrigerant Circuits 2 2 2 Unit Operating Charge, R-22, lbs. 46 46 52 52 59 59 Unit Operating Charge, R-22, (kg) (21) (21) (24) (24) (27) (27) Cabinet Dimensions, LxWxH, in. 94.4 x 88.0 x 100.4 94.4 x 88.0 x 100.4 94.4 x 88.0 x 100.4

Cabinet Dimensions, LxWxH, (mm) 2398 x 2235 x 2550

2398 x 2235 x 2550

2398 x 2235 x 2550

Unit Operating Weight, Lbs. (kg) 4040 (1834) 4070 (1848) 4180 (1898) Unit Shipping Weight, Lbs. (kg) 3820 (1734) 3970 (1802) 4080 (1852) Add'l Weight If Copper Finned Coils, lbs. (kg) 476 (216) 568 (258) 568 (258)

COMPRESSORS Type Tandem Scrolls Tandem Scrolls Tandem Scrolls Nominal tonnage of each Compressor 15.0 15.0 15.0 15 / 20 15 / 20 15 / 20 Number Of Compressors per Circuit 2 2 2 2 2 2 Oil Charge Per Compressor, oz. 140 140 140 140 /148 140 /148 140 /148Oil Charge Per Compressor, (g) (496) (496) (496) 496/ 525 496/ 525 496/ 525

CAPACITY REDUCTION STEPS - PERCENT OF COMPRESSOR DISPLACEMENT Staging, 4 Stages, Circuit #1 in Lead 0-25-50-75-100 0-23-46-77-100 0-25-50-75-100 Staging, 4 Stages, Circuit #2 in Lead 0-25-50-75-100 0-31-46-69-100 0-25-50-75-100

CONDENSERS - HIGH EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area, sq. ft. 44.1 44.1 52.6 52.6 52.6 52.6 Coil Face Area, (m2) 4.1 4.1 4.9 4.9 4.9 4.9 Finned Height x Finned Length, in. 42x75.6 42x75.6 100x75.6 100x75.6 100x75.6 100x75.6


1067 x 1920

2540 x 1920

2540 x 1920

2540 x 1920

2540 x 1920

Fins Per Inch x Rows Deep 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 Pumpdown Capacity, 90% Full Lbs. (kg) 82 (37 82 (37 98 (44 98 (44 98 (44 98 (44 Maximum Relief Valve Pressure Setting, psig (kPa)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

CONDENSER FANS - DIRECT DRIVE PROPELLER TYPE Number Of Fans - Fan Diameter, in. (mm) 4 – 30 (762) 4 – 30 (762) 4 – 30 (762) Number Of Motors - HP (kW) (Note 1) 4 – 1.5 4 – 2.0 4 – 2.0 Fan And Motor RPM, 60Hz 1140 1140 1140 60 Hz Fan Tip Speed, FPM (m/sec) 8950 (4224) 8950 (4224) 8950 (4224) 60 Hz Total Unit Airflow, CFM (m3/sec) 37,228 (17,572 43,452 (20,510) 43,452 (20,510)




090B 100B 110B BASIC DATA Ckt.1 Ckt.2 Ckt.1 Ckt.2 Ckt.1 Ckt.2 Number Of Refrigerant Circuits 2 2 2 Unit Operating Charge, R-22, lbs. 59 59 59 69 69 69 Unit Operating Charge, R-22, (kg) (27) (27 (27 (31) (31 (31 Cabinet Dimensions, LxWxH, in. 134.9 x 88.0 x 100.4 134.9 x 88.0 x 100.4 134.9 x 88.0 x 100.4Cabinet Dimensions, LxWxH, (mm) 3426 x 2235 x 2550 3426 x 2235 x 2550 3426 x 2235 x 2550 Unit Operating Weight, Lbs. (kg) 5630 (2556) 5790 (2629) 5950 (2701) Unit Shipping Weight, Lbs. (kg) 5510 (2502) 5670 (2574) 5830 (2647) Add'l Weight If Copper Finned Coils, lbs. (kg) 870 (395) 870 (395) 870 (395) COMPRESSORS Type Tandem Scrolls Tandem Scrolls Tandem Scrolls Nominal tonnage of each Compressor 20.0 20.0 20.0 25.0 25.0 25.0 Number Of Compressors per Circuit 2 2 2 2 2 2 Oil Charge Per Compressor, oz. 148 148 148 200 200 200 Oil Charge Per Compressor, (g) (525) (525) (525) (709) (709) (709) CAPACITY REDUCTION STEPS - PERCENT OF COMPRESSOR DISPLACEMENT Staging, 4 Stages, Circuit #1 in Lead 0-25-50-75-100 0-22-50-72-100 0-25-50-75-100 Staging, 4 Stages, Circuit #2 in Lead 0-25-50-75-100 0-28-50-78-100 0-25-50-75-100 CONDENSERS - HIGH EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area, sq. ft. 78.8 78.8 78.8 78.8 78.8 78.8 Coil Face Area, (m2) 7.3 7.3 7.3 7.3 7.3 7.3 Finned Height x Finned Length, in. 50 x113.4 50 x113.4 50 x113.4 50 x113.4 50 x113.4 50 x113.4


1270 x 2880

1270 x 2880

1270 x 2880

1270 x 2880

1270 x 2880

Fins Per Inch x Rows Deep 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 Pumpdown Capacity, 90% Full Lbs. (kg) 147 (67) 147 (67) 147 (67) 147 (67) 147 (67) 147 (67)

Maximum Relief Valve Pressure Setting, psig (kPa) 450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

CONDENSER FANS - DIRECT DRIVE PROPELLER TYPE Number Of Fans - Fan Diameter, in. (mm) 6 – 30 (762) 6 – 30 (762) 6 – 30 (762) Number Of Motors - HP (kW) (Note 1) 6 – 2.0 6 – 2.0 6 – 2.0 Fan And Motor RPM, 60Hz 1140 1140 1140 60 Hz Fan Tip Speed, FPM (m/sec) 8950 (4224) 8950 (4224) 8950 (4224) 60 Hz Total Unit Airflow, CFM (m3/sec) 65,178 (30,765) 65,178 (30,765) 65,178 (30,765)




120B 130B 140B 155B BASIC DATA Ckt.1 Ckt.2 Ckt.1 Ckt.2 Ckt.1 Ckt.2 Ckt.1 Ckt.2 Number Of Refrigerant Circuits 2 2 2 2 Unit Operating Charge, R-22, lbs. 76 86 86 86 86 104 104 104 Unit Operating Charge, R-22, (kg) (35) (39) (39) (39) (39) (47) (47) (47) Cabinet Dimensions, LxWxH, in. 173.1 x 88.0 x 100.4 173.1 x 88.0 x 100.4 173.1 x 88.0 x 100.4 173.1 x 88.0 x 100.4Cabinet Dimensions, LxWxH, (mm) 4397 x 2235 x 2550 4397 x 2235 x 2550 4397 x 2235 x 2550 4397 x 2235 x 2550 Unit Operating Weight, Lbs. (kg) 6970 (3164 7230 (3282) 7480 (3396) 7760 (3523) Unit Shipping Weight, Lbs. (kg) 6820 (3096) 7080 (3214) 7360 (3341) 7640 (3469) Add'l Weight If Copper Finned Coils, lbs. (kg) 1155 (524) 1155 (524) 1155 (524) 1155 (524) COMPRESSORS Type Trio Scrolls Trio Scrolls Trio Scrolls Trio Scrolls Nominal tonnage of each Compressor 15.0 20.0 20.0 20.0 20.0 25.0 25.0 25.0 Number Of Compressors per Circuit 3 3 3 3 3 3 3 3 Oil Charge Per Compressor, oz. 140 148 148 148 148 200 200 200 Oil Charge Per Compressor, (g) (496) (525) (525) (525) (525) (709) (709) (709) CAPACITY REDUCTION STEPS - PERCENT OF COMPRESSOR DISPLACEMENT Staging, 6 Stages, Circuit #1 in Lead 0-14-33-48-67-81-100 0-17-33-50-67-83-100 0-15-33-48-67-81-100 0-17-33-50-67-83-100Staging, 6 Stages, Circuit #2 in Lead 0-19-33-52-67-86-100 0-17-33-50-67-83-100 0-19-33-52-67-86-100 0-17-33-50-67-83-100CONDENSERS - HIGH EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area, sq. ft. 105.3 105.3 105.3 105.3 105.3 105.3 105.3 105.3 Coil Face Area, (m2) 9.8 9.8 9.8 9.8 9.8 9.8 9.8 9.8 Finned Height x Finned Length, in. 50 x151.6 50 x151.6 50 x151.6 50 x151.6 50 x151.6 50 x151.6 50 x151.6 50 x151.6


1270 x 3851

1270 x 3851

1270 x 3851

1270 x 3851

1270 x 3851

1270 x 3851

1270 x 3851

Fins Per Inch x Rows Deep 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 16 x 3 Pumpdown Capacity, 90% Full Lbs. (kg) 196 (89) 196 (89) 196 (89) 196 (89) 196 (89) 196 (89) 196 (89) 196 (89) Maximum Relief Valve Pressure Setting, psig (kPa)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

450 (3103)

CONDENSER FANS - DIRECT DRIVE PROPELLER TYPE Number Of Fans - Fan Diameter, in. (mm) 8 – 30 (762) 8 – 30 (762) 8 – 30 (762) 8 – 30 (762) Number Of Motors - HP (kW) 8 – 2.0 8 – 2.0 8 – 2.0 8 – 2.0 Fan And Motor RPM, 60Hz (Note 1) 1140 1140 1140 1140 60 Hz Fan Tip Speed, FPM (m/sec) 8950 (4224) 8950 (4224) 8950 (4224) 8950 (4224) 60 Hz Total Unit Airflow, CFM (m3/sec) 86,904 (41,020) 86,904 (41,020) 86,904 (41,020) 86,904 (41,020)



Dimensional Data Figure 14, ACZ 010A through 020A

CONTROL ELECTRICAL KNOCKOUT

21.32(541.53)

46.23 (1174.24)

49.06 (1246.12)M0UNTING HOLES

QTY. 4 01.00 (25.4)

3.94 (100.08)

73.55 (1868.17)

POWER ENTRY KNOCKOUT (OTHER SIDE)

51.0(1295.40)

46.27(1175.26)

7.55(191.77)

MOUNTING HOLES

31.11 (790.19)

ACCESS DOOR

CONTROL PANEL ACCESS DOORS

POWER ENTRY

LIFTING SLOTS

SUCTION INLET

LIQUID OUTLET

X

Y

Z

HOT GAS BYPASS

6.0(152.4)6.0

(152.4)

6.0(152.4)6.0

(152.4)

Center of Gravity inches (mm) ACZ

Unit Size Liquid Conn. inches (mm)

Suction Conn

inches (mm)

Optional Hot Gas Bypass X Y Z

010A, 013A 7/8 (22.2) 1 1/8 (28.6) 5/8 (15.8) 28 (711.2) 22 (558.8) 23 (584.2) 016A, 020A 7/8 (22.2) 1 5/8 (41.3) 5/8 (15.8) 25 (635.0) 21 (553.4) 23 (584.2)

Figure 15, ACZ 025A - 039A

CONTROL ELECTRICAL KNOCKOUT

21.32(541.53)

46.19 (1173.23)49.06 (1246.12)

MOUNTING HOLES QTY. 6 0 1.00 (25.4)

3.94 (100.08)

105.97 (2691.64)

49.06 (1246.12)

POWER ENTRY KNOCKOUT (OTHER SIDE)

A

46.26(1175.26)

7.55(191.77)

MOUNTING HOLES

31.11 (790.19)

ACCESS DOOR

CONTROL PANEL ACCESS DOORS

POWER ENTRY

SUCTIONINLET

LIQUIDOUTLET

LIFTING SLOTS

X

Z

Y

HOT GAS BYPASS

6.0(152.4)6.0

(152.4)

6.0(152.4)6.0

(152.4)

Center of Gravity inches (mm) ACZ Unit

Size A

inches (mm) Liquid Conn.

inches (mm)

Suction Conn

inches (mm)

Optional Hot Gas Bypass X Y Z

025A, 028A 51 (1295) 7/8 (22.2) 1 5/8 (41.3) 5/8 (15.8) 35 (889.0) 21 (553.4) 23 (584.2) 033A, 039A 59 (1499) 7/8 (22.2) 2 1/8 (53.9) 7/8 (22.28) 35 (889.0) 25 (635.0) 24 (609.6)


Figure 16, Dimensions ACZ 030B through 080B

100.4(2550)

X

88.0 (2335)

25.1(637)

43.8(1111)

6.4 (162) 14.3 (364)

FIELD CONTROLCONNECTION

POWER ENTRY POINT0.875 KNOCK OUT

Y

Z94.4 (2397)

9.1(231)

16.7424)

25.8(656)

19.9(506)

19.9(507)

SUCTION CONN.

HOT GAS CONN.

LIQUIDCONN.

67.8 (1721) 13.3 (338)

2.0(51)

51.2 (1301) 8.9 (226)

25.0(636)

COMPRESSOR CIRCUIT #1

COMPRESSOR CIRCUIT #2

ISOLATOR LOCATIONS ON BOTTOM OF RAIL

DWG. #3305196

CONTROLPANEL

CONTROLPANEL

13.3 (338)

SUCTIONLINE #2

SUCTIONLINE #1

HOT GASBYPASS #1

HOT GASBYPASS #2

LIQUIDLINE #1

LIQUIDLINE #2

REFRIGERANT CONNECTIONS

NOTE: Hail and wind guards add 20 inches to the width of each side.

Center of Gravity in. (mm) Weights lbs. (kg) Suction Conn.

inches ACZ-B Unit Size

Liquid Conn. inches Circuit 1 Circuit 2

Optional HGBP inches X Y Z Shipping Operating

030 (2) 7/8 1 5/8 1 5/8 (2) 7/8 36 (914) 42 (1067) 42 (1067) 3550 (1610) 3600 (1633) 035 (2) 7/8 1 5/8 1 5/8 (2) 7/8 36 (914) 42 (1067) 42 (1067) 3550 (1610) 3600 (1633) 040 (2) 7/8 1 5/8 1 5/8 (2) 7/8 36 (914) 42 (1067) 42 (1067) 3550 (1610) 3600 (1633) 045 (2) 7/8 1 5/8 1 5/8 (2) 7/8 36 (914) 41 (1041) 41 (1041) 3550 (1610) 3610 (1637) 050 (2) 7/8 1 5/8 1 5/8 (2) 7/8 36 (914) 41 (1041) 41 (1041) 3590 (1628) 3650 (1656) 055 (2) 7/8 1 5/8 1 5/8 (2) 7/8 36 (914) 42 (1067) 42 (1067) 3730 (1692) 3800 (1724) 060 (2) 7/8 1 5/8 2 1/8 (2) 7/8 35 (889) 42 (1067) 43 (1092) 3780 (1715) 3850 (1746) 065 (2) 7/8 2 1/8 2 1/8 (2) 7/8 35 (889) 42 (1067) 43 (1092) 3820 (1733) 4040 (1833) 070 (2) 7/8 2 1/8 2 5/8 (2) 7/8 35 (889) 43 (1092) 45 (1143) 3970 (1801) 4070 (1846) 080 (2) 7/8 2 5/8 2 5/8 (2) 7/8 36 (914) 44 (1118) 46 (1168) 4080 (1851) 4180 (1896)


Figure 17, Dimensions, ACZ 090B through 110B

Z

Y

28.5(724)

134.7 (3421)

28.5(724)

12.4(315) 12.4 (315)

2.0 (51)

2.0 (51)

51.3 (1304)

34.3(870)

40.0(1017)

47.9(1218)

53.7(1365)

110.1 (2797)COMPRESSORS CIRC #2

COMPRESSORS CIRC #1


100.4(2550)

X6.4

(162)14.4 (364)

88.0 (2235)

POWER ENTRYPOINT 0.875KNOCK OUTS


Dwg. #3305025-R3

CONTROLPANEL

CONTROLPANEL

SUCTIONLINE #2

SUCTIONLINE #1

HOT GASBYPASS #2

HOT GASBYPASS #1

LIQUIDLINE #2 LIQUID

LINE #1



Center of Gravity Inches (mm) Weights Lbs. (kg) Suction Conn.

inches ACZ Unit Size

Liquid Conn. inches

Circuit 1 Circuit 2

Optional Hot Gas Bypass inches X Y Z Shipping

Weight Operating

Weight

090B (2) 1 1/8 2 5/8 2 5/8 1 1/8 44 (1118)

46 (1168)

58 (1473)

5510 (2499)

5630 (2554)

100B (2) 1 1/8 2 5/8 3 1/8 1 1/8 43 (1092)

44 (1118)

58 (1473)

5670 (2572)

5790 (2626)

110B (2) 1 1/8 3 1/8 3 1/8 1 1/8 44 (1118)

41 (1041)

57 (1448)

5830 (5830)

5950 (2699)


Figure 18, ACZ120B through 155B

82.4 (2093)

34.22(869.2)

39.95(1014.7)

48.00(1319.2)

53.73(1364.7)

67.8 (1721) 12.4(315)

25.2(640)

2.0(51)

2.0(51)

COMPRESSORS CIRC #2

COMPRESSORS CIRC #1


Z

Y

173.1 (4396)

23.9(114)

9.0(229)

17.6(447)

X

100.4(2550)

88.0 (2235)

43.8(1111)

6.4(1624) 14.4 (365)


POWERENTRYPOINT 0.875KNOCK OUTS

DWG. #3305026

23.9(114)

67.8 (1721)

CONTROLPANEL

CONTROLPANEL

SUCTIONLINE #2

SUCTIONLINE #1

HOT GASBYPASS #2 HOT GAS

BYPASS #1

LIQUIDLINE #2 LIQUID

LINE #1



Center of Gravity Inches (mm) Weights Lbs. (kg) Suction Conn. inches

ACZ Unit Size

Liquid Conn. inches Circuit 1 Circuit 2

Optional Hot Gas Bypass X Y Z Shipping

Weight Operating

Weight

120B (2) 1 1/8 2 5/8 3 1/8 1 1/8 43 (1092) 46 (1168) 75 (1905) 6820 (3094) 6970 (3162) 130B (2) 1 1/8 3 1/8 3 1/8 1 1/8 44 (1118) 46 (1168) 73 (1854) 7080 (3211) 7230 (3280) 140B (2) 1 1/8 3 1/8 3 1/8 1 1/8 43 (1092) 63 (1600) 73 (1854) 7360 (3338) 7480 (3393) 155B (2) 1 1/8 3 1/8 3 1/8 1 1/8 44 (1118) 40 (1016) 71 (1803) 7640 (3466) 7760 (3520)


Application Data

Unit Placement ACZ units are for outdoor applications and can be mounted either on a roof or at ground level. For roof mounted applications, install the unit on a steel channel or I-beam frame to support the unit above the roof. For ground level applications, install the unit on a substantial base that will not settle. Use a one-piece concrete slab with footings extended below the frost line. Be sure the foundation is level within 1/2" (13mm) over its length and width. The foundation must be strong enough to support the weights listed in the Physical Data Tables beginning on page 49.

Table 40, Recommended Minimum Clearances

Model Size Coil Side “A” “B” “C” End Opposite

Controls Control Panel

End 010A - 039A 4 (1.2) 8 6 4 (1.2) 4 (1.2) 030B – 080B 4 (1.2) 8 6 4 (1.2) 4 (1.2) 090B – 155B 6 (1.8) 12 8 4 (1.2) 4 (1.2)

NOTE: Dimensions in ft (m). Clearances Do not block the flow of air to and from the condenser coil. Restricting airflow or allowing air recirculation will result in a decrease in unit performance and efficiency because the unit discharge pressure is increased. There must be no obstruction above the unit that would deflect discharge air downward where it could be recirculated back to the inlet of the condenser coil. The condenser fans are propeller type and will not operate with ductwork.

Install the unit with enough side clearance for air entrance to the coil and for servicing. Provide sufficient service access to the compressors, electrical control panel and piping components.

Figure 19, Clearances

4 FT. (1220) CLEARANCE FORSERVICE ACCESS

4 FT. (1220mm)CLEARANCE FORSERVICE ACCESS

SEE TABLE 32DIMENSION “A”

SEE TABLE 32DIMENSION “A”

The recommended minimum side clearance between two unitsis dimension “B’ in Table 32.

The unit must not be installed in a pit or enclosure that isdeeper or taller than the height of the unit unless extra spaceis provided. The minimum clearance on each side of the unit is dimension “C” in Table 32.

AIRDISCHARGE

AIRDISCHARGE

AIRDISCHARGE

AIR FLOW AIR FLOW

AIR FLOW

“B”

AIR FLOW AIR FLOW

“C” “C”


Do not allow debris to accumulate near the unit where it could be drawn into the condenser coil. Keep condenser coils and fan discharge free of snow and other obstructions to permit adequate airflow for proper operation.

Restricted Air Flow

Hail and Wind Guards If hail and wind guards are used, care must be taken when considering air flow clearances. The guards add 20 inches to the width of each side of the unit and essentially increase the total unit width by that amount. Wall spacing in the following discussions must be taken from the outside of the guards, i.e. 20 inches from the side of the unit.

General The clearances required for design-life operation of ACZ air-cooled condensers are described in the previous section. Occasionally, these clearances cannot be maintained due to site restrictions such as units being too close together or a fence or wall restricting airflow, or both.

Fortunately, the McQuay ACZ condensing units have several features that can mitigate the penalties attributable to restricted airflow.

• The condenser section is “W” shaped, as shown below. This allows inlet air for these coils to come in from either side. A vertical coil and its adjacent angled coil are manifolded together to serve one circuit. Every compressor set has its own independent refrigerant circuit.

• The MicroTech II™ control is proactive in response to “off-design conditions”. In the case of single or compounded influences restricting airflow to the unit, the microprocessor will act to keep the unit running (possibly at reduced capacity) rather than allowing a complete shut-off on high discharge pressure.

• The MicroTech II™ control can be programmed to sequence the compressors in the most advantageous way. For example, in the diagram shown below, it might be desirable to program circuit #1 to be the lag circuit (last circuit to reach full load) during periods of high ambient temperatures.

Figure 20, Coil and Fan Arrangement

Build

ing

Circuit #1 Circuit #2

The following sections discuss the most common situations of condenser air restriction and give capacity and power adjustment factors for each. Note that in unusually severe conditions, the MicroTech II™ controller would adjust the unit operation to remain online until a less severe condition is reached.


Case 1, Building or Wall on One Side of One Unit The existence of a screening wall or the wall of a building in close proximity to an air-cooled unit is common in both rooftop and ground level applications. Hot air recirculation on the coils adjoining the wall will increase compressor discharge pressure, decreasing capacity and increasing power consumption. Only the compressor(s) connected to these coils will be affected. Circuits opposite the wall are unaffected.

When close to a wall, it is desirable to place the units on the North or East side of them. It is also desirable to have prevailing winds blowing parallel to the unit’s long axis. The worst case is to have wind blowing hot discharge air into the wall.

Figure 21, Unit Adjacent to Wall

HD

Figure 22, Adjustment Factors

3.0

2.0

1.0

.5

0

ACZ090-155

5 ft.(1.5m)

6 ft.(1.8m)

4.0

3.0

2.0

0

4.5 ft.(1.4m)

ACZ010-080

3.5 ft.(1.0m)

4 ft.(1.2m)

3.0 ft.(0.9m)

ACZ090-155

ACZ010-080

5 ft.(1.5m)

6 ft.(1.8m)

4.5 ft.(1.4m)

3.5 ft.(1.0m)

4 ft.(1.2m)

3.0 ft.(0.9m)


Case 2, Two Units Side By Side Two or more units sited side by side are common. If spaced closer than 12 feet (3.7 meters) or 8 feet (2.5meters) depending on size, it is necessary to adjust the performance of each unit; circuits adjoining each other are affected. NOTE: This case applies only to two units side by side. See Case 3 for three or more parallel units. If one of the two units also has a wall adjoining it, see Case 1. Add the two adjustment factors together and apply to the unit located between the wall and the other unit.

Mounting units end to end will not necessitate adjusting performance. Depending on the actual arrangement, sufficient space must be left between the units for access to the control panel door opening. See “Clearance” section of this guide for requirements for specific units.

Figure 23, Two Units Side by Side

Figure 24, Adjustment Factor

3.0

2.0

1.0

0

ACZ 090-155

ACZ 010-080

9(2.7)6.5

(2.0)

10(3.0)

7(2.1)

11(3.3)7.5

(2.2)

12(3.6)

8(2.4)

6.0

4.0

2.0

0

ACZ 090-155

ACZ 010-080

9(2.7)6.5

(2.0)

10(3.0)

7(2.1)

11(3.3)7.5

(2.2)

12(3.6)

8(2.4)


Case 3, Three or More Units Side By Side When three or more units are side by side, the outside units (1 and 3 in this case) are influenced by the middle unit only on their inside circuits. Their adjustment factors will be the same as Case 2. All inside units (only number 2 in this case) are influenced on both sides and must be adjusted by the factors shown below.

Figure 25, Three or More Units


4.0

3.0

2.0

0

1.0

8.0

6.0

4.0

0

2.0

ACZ 090-155

ACZ 010-080

0(0.0)

0(0.0)

15(4.6)11

(3.3)

16(4.9)12

(3.7)

17(5.2)13

(4.0)

18(5.5)14

(4.3)

ACZ 090-155

ACZ 010-080

0(0.0)

0(0.0)

15(4.6)11

(3.3)

16(4.9)12

(3.7)

17(5.2)13

(4.0)

18(5.5)14

(4.3)


Case 4, Open Screening Walls Decorative screening walls are often used to help conceal a unit either on grade or on a rooftop. These walls should be designed such that the combination of their open area and distance from the unit do not require performance adjustment. It is assumed that the wall height is equal to or less than the unit height when mounted on its base support. This is usually satisfactory for concealment. If the wall height is greater than the unit height, see Case 5, Pit Installation.

The distance from the ends of the unit to the end walls should be sufficient for service and opening control panel doors.

If each side wall is a different distance from the unit, the distances can be averaged providing either wall is not less than 8 feet (2.4 meters) from the unit. For example, do not average 4 feet and 20 feet to equal 12 feet.

Figure 27, Open Screening Walls

,Figure 28, Wall Free Area vs Distance

6(1.8)

5(2.0)

4(1.2)

3(0.9)

4(1.2)

3.5(1.0)

3.0(0.9)

2.5(0.7)

0 10 20 30 40 50

ACZ 090-155ACZ 030-080


Case 5, Pit/Solid Wall Installation Pit installations can cause operating problems and great care should be exercised if they are to be used on an installation. Recirculation and restriction can both occur. A solid wall surrounding a unit is substantially the same as a pit and the data presented here should be used.

Steel grating is sometimes used to cover a pit to prevent accidental falls or trips into the pit. The grating material and installation design must be strong enough to prevent such accidents, yet provide abundant open area or serious recirculation problems will occur. Have any pit installation reviewed by McQuay application engineers prior to installation to make sure it has sufficient air-flow characteristics. The installation design engineer must approve the work to avoid an unreasonable risk of accident.

Figure 29, Pit Installation


ACZ090-155

ACZ010-080

D=6(1.8)

D=8(2.4)

D=4(1.4)

D=5(2.0)

ACZ090-155

ACZ010-080

D=6(1.8)

D=8(2.4)

D=4(1.4)

D=5(2.0)

ACZ090-155

ACZ010-080

D=10(3.1)

D=7(2.1)

ACZ090-155

ACZ010-080

D=10(3.1)

D=7(2.1)


Refrigerant Piping Proper refrigerant piping makes the difference between a reliable or an inefficient problematic system. The primary concerns related to piping are refrigerant pressure drop, a solid liquid feed to the expansion valves, continuous oil return and properly sized refrigerant specialties. The recommended source for refrigerant piping techniques and sizing is the ASHRAE 2002 Refrigeration Handbook, chapter #2. Refrigerant specialties including the expansion valves, solenoid valves, filter drier and sight glasses for use with the remote evaporator applications are supplied and installed by the installing contractor. The remaining components including pipe, insulation, fittings and Schrader valves are also provided and piped by the installer. The optional hot gas bypass valve with solenoid valve can be provided as a field installed or factory installed option. A holding charge of R22 is provided for the unit. The installer must properly evacuate the piping system and provide the operating charge of R22. Although conflicting piping recommendations can be found in different sources, McQuay offers the following recommendations for these controversial issues. The use of double risers for vertical gas risers is generally not required and should be used only as a last resort to maintain the minimum refrigerant flow to carry oil up the vertical risers. Slightly downsizing the vertical riser is a superior option to providing double risers. Slope the refrigerant lines 1” per 10 feet of horizontal run in the direction of refrigerant flow to assist oil return. Resist using hot gas bypass for applications when operation in ambient temperature below 40 degrees is expected. This recommendation helps to maintain adequate condensing pressures and liquid refrigerant at the expansion valve when condenser capacities are at their maximum. Pressure drops in the refrigerant lines should be maintained at or below the ASHRAE recommendations and line lengths should be made as short as possible. Exceeding these recommendations will decrease performance and could impact reliability. Small traps should be provided at the base of each major vertical gas riser to assist in the collection of oil. If vertical risers exceed more than 25 feet, install a small trap at the midpoint and not to exceed more than 20 feet intervals. Use caution in sizing the liquid line in applications where the evaporator is above the outdoor section. The weight of the liquid refrigerant in the vertical column will decrease the pressure at the top of the riser (approximately .5 PSI per foot of vertical rise) allowing some of the refrigerant to flash to a gas. Adequate refrigerant subcooling is needed at the outdoor section to prevent large volumes of refrigerant gas at the expansion valve. It is recommended that the piping systems always extend above the highest component in the refrigeration system before dropping down to make the final refrigerant connections to components. This practice will hinder the draining of condensed refrigerant to the lower component when normal shutdown procedures do not occur (such as a power failure). NOTE: Do not run refrigerant piping underground.

Operating/Standby Limits Maximum standby ambient air temperature, 130°F (5 5°C) Maximum operating ambient air temperature Standard Ambient Unit, 105°F (40.6°C) and below, Models BC High Ambient Unit, above 105°F (40.6°C) to 125°F 51.7°C), Models BH


Minimum operating ambient temperature (standard), 35°F (2°C) Minimum operating ambient temperature (with optional low-ambient control), 0°F (-18°C)

Vibration Isolators Vibration isolators are recommended for all roof-mounted installations or wherever vibration transmission is a consideration. The unit should be initially on shims or blocks at the listed free height. When all piping, wiring, flushing, charging, etc. is completed, the springs are adjusted upward to loosen the blocks or shims that are then removed. A rubber anti-skid pad is part of the isolator. Installation of spring isolators requires flexible piping connections and at least three feet of flexible conduit to avoid straining the piping and transmitting vibration and noise. Isolator Installation The unit should be initially installed on shims or blocks at the listed free height. When all piping, wiring, flushing, charging, etc. is completed, adjust the springs upward to load them and to provide clearance to remove the shims or blocks. Installation of spring isolators requires flexible piping connections and at least three feet of conduit flex tie-ins. Piping and conduit must be supported independently of the unit. Bolting: If the chiller base is to be bolted to the isolators, it is recommended that the short threaded studs usually found on isolators be replaced with eight-inch threaded rod that can extend through the holes on the top of the base and then be bolted. Washers will be required. Models ACZ 010 through 039 cannot be bolted to the isolators. Models ACZ 010 - 039 Corner Operating Weights

ACZ Unit

Model RF LF RB LB Total

010 259 257 243 241 1000 013 259 257 243 241 1000 016 353 360 251 256 1220 020 377 383 288 292 1340 025 498 505 232 235 1470 028 508 515 232 235 1490 033 605 567 304 284 1760 039 712 649 313 286 1960

RP-3, Neoprene-in Shear Isolator CP-1, Spring Isolator

R BI

L BI

R FI

L FI

ControlPanel


Table 41, Isolator Loads At Each Mounting Location (With Aluminum Fins) ACZ-B Model

AGZ-BM Model Shipping

Wt Operating.

Wt Loc. 1 Loc. 2 Loc. 3 Loc. 4 Total (1) Add’l for Copper Fins

lbs 3550 3600 1227 901 849 623 3600 72 ACZ 030 AGZ 026

kg 1608 1631 556 408 385 282 1631 32

lbs 3550 3600 1227 901 849 623 3600 72 ACZ 035 AGZ 030

kg 1608 1631 556 408 385 282 1631 32 lbs 3550 3600 1227 901 849 623 3600 72

ACZ 040 AGZ 035 kg 1608 1631 556 408 385 282 1631 32 lbs 3550 3610 1261 872 873 604 3610 72

ACZ 045 AGZ 040 kg 1608 1635 571 395 395 274 1635 32 lbs 3590 3650 1275 881 883 611 3650 72

ACZ 050 AGZ 045 kg 1626 1653 578 399 400 277 1653 32 lbs 3730 3800 1295 951 896 658 3800 119

ACZ 055 AGZ 050 kg 1690 1721 587 431 406 298 1721 54 lbs 3780 3850 1303 1016 860 671 3850 119

ACZ 060 AGZ 055 kg 1712 1744 590 460 390 304 1744 54 lbs 3820 4040 1367 1066 903 704 4040 142

ACZ 065 AGZ 060 kg 1730 1830 619 483 409 319 1830 65 lbs 3970 4070 1305 1146 862 757 4070 142

ACZ 070 AGZ 065 kg 1798 1844 591 519 390 343 1844 65 lbs 4080 4180 1278 1192 885 825 4180 217

ACZ 080 AGZ 070 kg 1848 1894 579 540 401 374 1894 99

NOTE (1): Additional weight for copper coils is per mounting location.

Table 42, Isolator Loads At Each Mounting Location (With Aluminum Fins)

ACZ Model

AGZ-BM Model Shipping

Wt. Operating

Wt. Loc 1 Loc 2 Loc 3 Loc 4 Loc 5 Loc 6 TOTAL

(1) Add’l

for Copper

Fins lbs 5510 5630 1649 1166 1649 1166 - - 5630 217

ACZ090 AGZ 075 kg 2496 2550 747 528 747 528 - - 2550 99 lbs 5670 5790 1734 1227 1657 1172 - - 5790 217

ACZ100 AGZ 085 kg 2569 2623 786 556 751 531 - - 2623 99 lbs 5830 5950 1770 1205 1770 1205 - - 5950 217

ACZ110 AGZ 090 kg 2641 2695 802 546 802 546 - - 2695 99 lbs 6820 6970 1323 1188 1053 1265 1135 1006 6970 289

ACZ120 AGZ 100 kg 3089 3157 599 538 477 573 514 456 3157 131 lbs 7080 7230 1396 1205 1014 1396 1205 1014 7230 289

ACZ130 AGZ 110 kg 3207 3275 632 546 459 632 546 459 3275 131 lbs 7360 7480 1477 1275 1073 1411 1218 1026 7480 289

ACZ140 AGZ 120 kg 3334 3388 669 578 486 639 552 465 3388 131 lbs 7640 7760 1555 1293 1032 1555 1293 1032 7760 289

ACZ155 AGZ 130 kg 3461 3515 704 586 467 704 586 467 3515 131

NOTE (1): Additional weight for copper coils is per mounting location.


Optional Features Controls

Hot Gas Bypass Hot gas bypass permits unit operation down to 10% of full load capacity. This option includes a factory-installed hot gas bypass valve, solenoid valve, and manual shutoff valve for each circuit. Interconnecting piping to an evaporator is field installed.

Head Pressure Control Optional SpeedTrol head pressure (on ACZ 010A to 039A) or fan VFD control (ACZ 030B to 155B) allows unit operation down to 0°F (-18°C). (Not available on 380 volt, 60 Hertz units.)

Alarm Bell Field installed and wired to the control panel to provide remote indication of unit alarm condition.

Remote Operator Interface Panel A remote interface panel, field wired to the unit, providing all the data viewable on the unit’s controller, including alarm clearing and setpoint change capability. See page 11 for details.

BAS Interface (Protocol Selectability™) A module is factory installed on the MicroTech II™ controller to provide direct interface to the following standard protocols: Also available as a field installed kit.

BACnet/IP BACnet MS/TP BACnet Ethernet

LONTALK (FTT-10A) Modbus

Unit Vibration Isolators Spring or neoprene-in-shear vibration isolators are available for field installation to reduce vibration transmission through the unit base. Protective Base Guards (ACZ 030B to 155B only) Optional factory installed vinyl-coated welded wire base guards provide all-around lower unit protection on ground level installations. Coil guards are standard.

Louvers/Hail Guard/Wind Baffles Available for the upper portion (condenser coils) and/or lower portion of unit on ACZ 030B through 155B. Selecting both will completely enclose the unit with louvers.

Models ACZ 010A through 039A have louvers covering the coil only, which due to the unit design, effectively encloses the entire unit.

The louvers improve unit appearance, protect the coils from hail damage and also stabilize operation during windy, low ambient operation. See page 3 for photograph.

Hail and Wind Guards (ACZ 030B – 155B only) Field-mounted box type hail and wind guards shipped as a kit for field assembly, including panels, fasteners, and instructions. The guards add 20 inches to each side of the unit.


Copper Fin Condenser Coils Copper fin condenser coils are available as an option on all models.

Black Fin Coils Aluminum fin stock precoated with a phenolic coating with 1000-hour salt spray resistance (ASTM B117-90).

Coated Fins Copper or aluminum fins coated with ElectroFin® baked epoxy protective coating with 5000-hour salt spray resistance (ASTM B117-90).

Sound Reduction Acoustical blankets are factory-installed on each compressor. They are also available for retrofit field installation.

Electrical Multi-Point Electrical Connection (ACZ 030B –155B only) Provides a power connection to each of the unit’s two electrical circuits.

Disconnect Switch with Through-the-Door Handle A factory or field installed option for service use, nonfused disconnect switch (mounted inside the power section of the control box) with a through-the-door handle is available with single and multi-point power supply only.

Phase Loss/Voltage Protection (P/N 350015201) Phase loss with under/over voltage protection and multiple LED indication of fault type is available as a factory installed option to guard against compressor motor burnout. Convenience Outlet (ACZ 030B – 155B only) 10.0 amp, 115 volt outlet located in control panel to provide power for servicing unit.

Ground Fault Protection (ACZ 030B – 155B only) Protects equipment from damage from low level line-to-ground fault currents, less than those required for conductor protection and quickly shuts off power.

High Ambient Control Panel Consists of exhaust fan with rain hood, two inlet screens with filters, necessary controls and wiring. The option can be factory installed or field installed as a kit. Must be used for:

• All ambient temperatures above 105°F (40°C) with fan VFD (low ambient option)

• Ambient temperatures above 115°F (46°C) with standard FanTrol control.

High Short Circuit Current Protection Provides control panel protection against short circuit currents per following table:

Voltage 208 240 460 600 Current (kA) 120 100 65 35


Product Specification

Specifications are available in MSWord format. Contact the local McQuay sales office. SECTION 15XXX

AIR-COOLED SCROLL COMPRESSOR CONDENSING UNITS

ACZ 010A-ACZ 155B PART 1 - GENERAL 1.01 SUMMARY

Section includes design, performance criteria, refrigerants, controls, and installation requirements for air-cooled scroll compressor condensing units.

1.02 REFERENCES

Comply with applicable Standards/Codes of ARI 365-94, ANSI/ASHRAE 15, ETL, cETL,

NEC, and OSHA as adopted by the State.

Units shall meet the efficiency standards of ASHRAE Standard 90.1.

1.03 SUBMITTALS

A. Submit shop drawings and product data in accordance with the specifications.

B. Submittals shall include the following:

1. Dimensioned plan and elevation view drawings, required clearances, and

location of all field connections.

2. Summary of all auxiliary utility requirements, such as electricity, water,

compressed air, etc. Summary shall indicate quality and quantity of each

required utility.

3. Single-line schematic drawing of the power field hookup requirements,

indicating all items that are furnished.

4. Schematic diagram of control system indicating points for field

interface/connection.

5. Diagram shall fully delineate field and factory wiring.

6. Installation manuals.

1.04 QUALITY ASSURANCE

A. Qualifications: Equipment manufacturer must specialize in the manufacture of the

type of products specified and have five years experience with similar equipment

and refrigerant offered.

B. Regulatory Requirements: Comply with the codes and standards specified.

C Manufacturer's plant must be ISO Registered.


1.05 DELIVERY AND HANDLING

A. Condensing units shall be delivered to the job site assembled and charged with a

holding charge of refrigerant and full oil charge by the manufacturer.

B. Comply with the manufacturer's instructions for rigging and handling equipment.

1.06. WARRANTY

The refrigeration equipment manufacturer’s guarantee shall be for a period of one year from

date of equipment start-up but not more than 18 months from shipment. The guarantee shall

provide for repair or replacement due to failure by material and workmanship that prove

defective within the above period, excluding refrigerant.

1.07 MAINTENANCE

Maintenance of the units shall be the responsibility of the owner and performed in

accordance with the manufacturer’s instructions.

PART 2--PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS

A. McQuay International

B. (Approved Equal)

2.02 UNIT DESCRIPTION

Provide and install as shown on the plans factory-assembled, air-cooled scroll compressor

condensing units in the size and quantity specified. Each unit shall consist of hermetic

tandem or triple scroll compressor sets, air-cooled condenser section, control system and all

components necessary for controlled unit operation when field piped and wired to low side

equipment specified elsewhere.

2.03 DESIGN REQUIREMENTS

A. General: Provide a complete scroll-compressor condensing unit as specified herein

and as shown on the drawings. The unit shall be in accordance with the standards

referenced in section 1.02 and any local codes in effect.

B. Performance: Refer to the schedule of performance on the drawings. The unit shall

be capable of stable operation to a minimum of 50 percent of full load without hot

gas bypass. Performance shall be in accordance with ARI Standard 365-94.

C. Acoustics: Sound pressure levels for the unit shall not exceed the following

specified levels. The manufacturer shall provide the necessary sound treatment to

meet these levels if required. Sound data shall be provided with the quotation. Test

shall be in accordance with ARI Standard 370.


Octave Band

63 125 250 500 1000 2000 4000 8000 dBA ____ ____ ____ ____ ____ ____ ____ ____ ____ 2.04 CONDENSING UNIT COMPONENTS

A. Compressors: The compressors shall be sealed hermetic scroll type with crankcase

oil heater and suction strainer. Compressor shall have a forced-feed lubrication

system with integral oil pump and oil charge. The compressor motor shall be

refrigerant gas cooled, high torque, hermetic induction type, two-pole, with inherent

thermal protection on all three phases and shall be mounted on RIS vibration

isolator pads.

B. Condenser: The condenser coils shall consist of 3/8 inch (10mm) seamless copper

tubes mechanically bonded into plate-type fins. The fins shall have full drawn

collars to completely cover the tubes. A subcooling coil shall be an integral part of

the main condenser coil. Condenser fans shall be propeller type arranged for

vertical air discharge and individually driven by direct-drive fan motors. They shall

be equipped with a heavy-gauge fan guard. Fan motors shall be TEAO, three-

phase, direct-drive, 1140 rpm.

D. Refrigerant Circuit: Capped connections shall be provided for field connection of

refrigerant piping. Refrigerant specialties shall be field supplied and installed.

E. Control System: A centrally located weatherproof control panel shall contain the

field power connection points, control interlock terminals, and control system.

Power and starting components shall include factory short circuit protection of fan

motors and control circuit, individual contactors for each fan motor, solid-state

compressor three-phase motor overload protection, inherent fan motor overload

protection and unit power connections for connection to remote disconnect switch.

Hinged access doors shall be tool-lockable. Barrier panels or separate doors are

required to protect against accidental contact with line voltage when accessing the

control system.

F. An advanced DDC microprocessor unit controller with a 4-line by 20-character

liquid crystal display provides the operating and protection functions. The

controller shall be capable of receiving a 4 to 20 mA signal for demand limiting and

be remotely enabled with a digital input. The controller shall take pre-emptive

limiting action in case of high discharge pressure or low evaporator pressure.

The controller shall contain the following features as a minimum:

Equipment Protection

The unit shall be protected in two ways: (1) by alarms that shut the unit down

and require manual reset to restore unit operation and (2) by limit alarms that

reduce unit operation in response to some out-of-limit condition. Shut down

alarms shall activate an alarm signal.


Shutdown Alarms • Low evaporator pressure • High condenser pressure • Motor protection system • Phase voltage protection (Optional) • Outside ambient temperature • Sensor failures

Limit Alarms • Condenser pressure stage down, unloads at high discharge pressures • Low ambient lockout, shuts off unit at low ambient temperatures • Low evaporator pressure hold, holds stage #1 until pressure rises • Low evaporator pressure unload, shuts off one compressor

Unit Enable Selection Enables unit operation from either local keypad, digital input, or BAS

Unit Mode Selection Selects standard cooling or test operation mode

Digital Inputs • Unit off switch • Remote start/stop • Motor protection

Digital Outputs • Shutdown alarm; field wired, activates on an alarm condition, off

when alarm is cleared Condenser fan control

The unit controller shall provide control of condenser fans based on compressor discharge pressure.

Building Automation System (BAS) Interface Factory mounted DDC controller(s) shall support operation on a BACnet®, Modbus® or LONMARKS ® network via one of the data link / physical layers listed below as specified by the successful Building Automation System (BAS) supplier.

• BACnet MS/TP master (Clause 9) • BACnet IP, (Annex J) • BACnet ISO 8802-3, (Ethernet) • LONMARKS FTT-10A. The unit controller shall be

LONMARKS® certified. The information communicated between the BAS and the factory mounted unit controllers shall include the reading and writing of data to allow unit monitoring, control and alarm notification as specified in the unit sequence of operation and the unit points list.

For chillers communicating over a LONMARK network, the corresponding LONMARK eXternal Interface File (XIF) shall be provided with the chiller submittal data.

All communication from the chiller unit controller as specified in the points list shall be via standard BACnet objects. Proprietary BACnet objects shall not be allowed. BACnet communications shall conform to the BACnet protocol (ANSI/ASHRAE135-2001). A BACnet Protocol Implementation Conformance Statement (PICS) shall be provided along with the unit submittal.

2.05 OPTIONS AND ACCESSORIES


The following options are to be included:

• Hot gas bypass to allow unit operation to 10 percent of full load

• Low ambient head pressure control to 0°F (-17.8°C)

• Non-fused disconnect switch with through-the-door handle

• Aluminum fins pre-coated with a phenolic epoxy coating with 1000 hour salt spray

rating (ASTM B117-90

• Copper fin condenser coils

• ElectroFin™ baked epoxy coating providing 3000+ hour salt spray resistance (ASTM

B117-90) and is applied to both the coil and the coil frames.

• Spring vibration isolators for field installation

• Neoprene-in-shear vibration isolators for field installation

• Hail and wind guards

• Full louvers for top and bottom of unit

• High short circuit current protection

• Remote operator interface panel

• BAS interface module for standard protocols

• Sound reduction blankets for compressors

• 115V convenience outlet

PART 3 - EXECUTION 3.01 INSTALLATION

A. Install in strict accordance with manufacturer’s requirements, shop drawings, and

contract documents.

B. Adjust and level unit in alignment on supports.

C. Coordinate electrical installation with electrical contractor.

D Coordinate controls with control contractor.

E. Provide all appurtenances required for a fully operational and functional unit.

3.02 START-UP

A. Install proper charge of refrigerant and oil.

B. Provide testing and starting of machine, and instruct the Owner in its proper

operation and maintenance.

�2005 McQuay International • (800) 432-1342 • www.mcquay.com Catalog ACZ-4 (12/05)

This document contains the most current product information as of this printing. For the most up-to-date product information, please go to www.mcquay.com.

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