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Form No. S3426-1213Supersedes S3426-813Page 3 of 8

Electr ic Heat Table

Electr ical Specif icatio ns

Heater Packages - Field Instal led

1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.

2 Based on 75C copper wire. All wiring must conform to the National Electrical Code and all local codes.

3 These Minimum Circuit Ampacity values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 forpower conductor sizing.

Caution: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of Table 310 regarding

Ampacity Adjustment Factors when more than three (3) current carrying conductors are in a raceway.

* Top outlet supply option is available only factory installed and only on the selected models.

IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the

National Electrical Code and all local codes.

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DIGITAL THERMOSTAT/CONTROLLER

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8403-066 DIGITALCONTROLLER

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ECU OPERATING CONTROL SYSTEM

The W3R/LV1 through W6R/LV1 variable capacity air

conditioners utilize dedicated controllers and components

to optimize this unit for cooling operation from -40 degrees

F up to 131 degrees F (-40 degrees C to +55 degrees C).

These units are dual rated for 200-240V operation on both

50 and 60 Hz. Please read the following sequence of

operation before attempting any troubleshooting or repair.

Troubleshooting and repair procedures will be outlined

later (Page 5).

These models use a digital compressor and variable speed

indoor and outdoor motors. The motors and compressor

must be replaced with the exact same component to

maintain the above stated temperature and voltage ranges of

operation. The units are controlled by a Bard digital

thermostat/controller. This thermostat/controller contains

proprietary programming and must be placed with the exact

same component to ensure proper operation.

13-conductor 18 gauge control cable should be used for

making connections from thermostat/controller to the ECU.

Lead/Lag sequence available by special application of the8403-066 Digital Controllers. Consult ECU Installation

Instructions.

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SEQUENCE OF OPERATION

MODES OF OPERATION

Cool Only Mode:

Compressor will modulate from 100% down to 20%.

Compressor will cycle off if thermostat/controller set-point is

reached.

Heat Only Mode:

Electric heat Stage 1 operates at 1st-stage heating set-point.

Electric heat Stage 2 (if equipped) operates on 2nd-stage (-2F

below heating set-point).

Auto Mode:

Cooling or heating automatically selected based on building

temperature vs. thermostat/controller set-points and operates as

described above.

CCVC (Continuous Compressor Variable Capacity):

Compressor will modulate from 100% down to 20%.

Compressor will not cycle off if thermostat/controller set-point is

reached, and would stay running at the 20% minimum capacity.

If space temperature drops -2F below cooling set-point electric

heat Stage 1 will then cycle to maintain that condition.

If Stage 2 electric heat is installed, and if required, will cycle at -

4F below cooling set-point to maintain that condition.

If CCVC is terminated the controller will revert to Cool or

Auto operation.

CCVC would be an Operating Mode for all applications where

continuous run of the compressor is a requirement.

CCFC (Continuous Compressor Fixed Capacity):

The compressor is turned ON and locked ON as long as the

thermostat/controller is in CCFC.

When in CCFC the compressor does not modulate but will be

locked ON at 100% capacity.

If space temperature drops -2F below cooling set-point electric

heat Stage 1 will then cycle to maintain that condition.

If Stage 2 electric heat is installed, and if required, will cycle at -4F below cooling set-point to maintain that condition.

If CCFC is terminated the controller will revert to Cool or

Auto operation.

CCFC would not be considered an Operating Mode and should

only be used for system testing as required.

Indoor Blower Operation

The indoor blower speed will modulate with the compressor

operation from 50% to 100% of operation. Once compressor

operation is at 50 or below, percent airflow will be at 50% and no

further reduction of airflow will occur. Modulation is

accomplished by modulating a 0-10 volt signal from OUT 7 to the

indoor blower control board which then sends a PWM signal to

the indoor blower motor.

An additional option to maintain airflow at 100% is also available.

Outdoor Fan Motor Operation

The outdoor fan motor speed is varied in response to outdoor air

temperature and pressure. The fan motor will cycle on and off

with the compressor when not in a CCVC or CCFC. At all times

above 122 degrees OAT, the outdoor fan, OUT 9, will be

energized at high speed. From 122 degrees to 55 degrees the

outdoor fan, OUT 9, will be set at normal outdoor airflow. Below

55 degrees the outdoor fan will modulate to maintain a 300 psi

head pressure. This will act as a low ambient fan cycling control.

The output may go to zero output to maintain the 300 PSI. The

outdoor ECM motor will be programmed with a minimum

RPM allowed to protect the bearing system. Any signal that is

less than the percent torque required to maintain the minimum

RPM will cause the motor to shut off. Once head pressure rise

the motor will restart.

COOLING SEQUENCE

Compressor Operation

The cooling capacity of the WV series is controlled by loading or

unloading the compressor. On a call for cooling, the unloader

solenoid is energized for one second to ensure pressureequalization in the compressor. The compressor contactor, RLY

2, is then energized and the compressor will start. A PI control

loop then calculates the compressor capacity needed to reach set

point and modulates the compressor . Modulation range is from

20% to 100% capacity. Modulation is accomplished by a pulse

width modulated signal from OUT 8 which energizes the solid

state relay (SSR) and energizes or de-energizes the unloader

solenoid. The required compressor capacity is calculated every

15 seconds.

20% loadmeans 0 VDC for 3.0 seconds and 5 VDC for 12.0

seconds from OUT 8.

30% loadmeans 0 VDC for 4.5 seconds and 5 VDC for 10.5seconds from OUT 8.


seconds from OUT 8.


seconds from OUT 8.


seconds from OUT 8.


seconds from OUT 8.


seconds from OUT 8.

90% loadmeans 0 VDC for 13.5 seconds and 5 VDC for 1.5seconds from OUT 8.

100% loadmeans 0 VDC for 15 seconds and 5 VDC for 0.0

seconds from OUT 8.

HEATING SEQUENCE

On a call for heating, if the space temperature falls 1F below

setpoint, the first stage of heating, RLY 4, will cycle ON. If the

space temperature falls 3F below setpoint, the second stage of

heating, RLY 5, will cycle ON. Indoor Blower airflow is

maintained at the Rated unit airflow at all times during heating.

ADDITIONAL SOFTWARE FEATURESCOOLING MODE

High ambient operation mode- Unit will modulate capacity

down above 125 degrees outdoor temperature. The thermostat/controller display will indicate high ambient operation mode

when this occurs.

High head pressure operation mode- When the unit head

pressure exceeds 610 PSI, the Unit will modulate capacity

pressure down until it is at or below 600 psi. Controls will

indicate head pressure control mode on the display when this

occurs.

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1Return air temperature at 50% R.H.

2Application data based on compressor at 100% capacity operating as CCFC up to 125F. Above 125F compressor capacity will modulate lower

as required to stay below 610 PSIG and stay on-line.


2Application data based on compressor at 100% capacity operating as CCFC; see description page 5.

Coo ling App lication Data 60 Hz - Outd oo r Temp erature BTUH (KW) 22222



Coo ling App lication Data 50 Hz - Outd oo r Temp erature BTUH (KW) 22222

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)97.51()85.9(

524,04525,42

)48.11()91.7(

SLEDOM .B.W/.B.D 33333 .H.R% yticapaCgnilooC )C05(F221 )C55(F131

1VL3W/1VR3W F56/58

)C3.81/4.92( 53

latoTelbisneS

)51.8(008,72)51.8(008,72

)40.6(006,02)40.6(006,02

1VL5W/1VR5W F56/58

)C3.81/4.92( 53

latoTelbisneS

)08.31(001,74)08.31(001,74

)57.21(005,34)57.21(005,34

1VL6W/1VR6W F56/58

)C3.81/4.92( 53

latoTelbisneS

)30.61(007,45)30.61(007,45

)49.41(000,15)49.41(000,15

SLEDOM .B.W/.B.D 33333 .H.R% yticapaCgnilooC )C05(F221 )C55(F131

1VL3W/1VR3W F56/58

)C3.81/4.92( 53

latoTelbisneS

)81.7(005,42)81.7(005,42

)84.5(007,81)84.5(007,81

1VL5W/1VR5W F56/58

)C3.81/4.92( 53

latoTelbisneS

)82.21(009,14)82.21(009,14

)15.11(002,93)15.11(002,93

1VL6W/1VR6W F56/58

)C3.81/4.92( 53

latoTelbisneS

)33.41(009,84)33.41(009,84

)17.31(008,64)17.31(008,64

8/12/2019 Bard s3426

7/8


)mm(sehcnI-stnemeriuqeRnoitallatsnIdnalarutcetihcrAroftinUcisaBfosnoisnemiD

LEDOM HTDIW

)W(HTPED

)D(THGIEH

)H(

YLPPUS NRUTER

A B C B E F G I J K L M N O P Q R 1S 2S T

1VR3W1VL3W

002.83)079(

521.71)534(

365.07)2971(

88.7)002(

88.72)807(

88.31)353(

88.72)807(

00.04)6101(

88.01)672(

57.52)456(

39.71)554(

83.62)076(

57.82)037(

52.92)347(

00.72)686(

57.2)07(

91.93)699(

57.22)875(

41.9)232(

91.4)601(

00.21)503(

00.21)503(

00.5)721(

1VR5W1VL5W

570.24)9601(

234.22)075(

578.48)6512(

88.9)152(

88.92)957(

88.51)304(

88.92)957(

88.34)5111(

65.31)443(

66.13)408(

00.03)267(

13.23)028(

49.62)486(

96.43)188(

34.23)428(

73.3)68(

88.24)9801(

88.32)706(

00.01)452(

44.1)73(

00.61)604(

00.61)604(

88.1)84(

1VR6W1VL6W

570.24)9601(

234.22)075(

578.49)0142(

88.9)152(

88.92)957(

88.51)304(

88.92)957(

88.34)5111(

65.31)443(

66.14)6501(

00.03)267(

13.24)4701(

49.63)939(

96.44)5311(

34.24)8701(

73.3)68(

88.24)9801(

88.33)168(

00.01)452(

44.1)73(

00.61)604(

00.12)335(

88.1)84(

W*RV

RIGHT

UNIT

W*LV

LEFTUNIT

Dimensional drawings are not to scale.

MIS-3076

EntrancesElectrical

Side Wall

Brackets

LocationShipping

(Built In)

Return Air OpeningOptional

Supply Air OpeningMounting

Top RainFlashing

BottomInstallationBracket

Back View

P

L

O

E

R

S1

M

S1

S2

S2

T

N

S1

Q

B

PanelAccess

Cond.

Heat

Heater

(Lockable)Access Panel

Low Voltage

AirInlet

Entrance

Electric

Electrical

Rain Hood4 Pitch

Built In

Disconnect

Entrance

C. Breaker/

High VoltageElectrical

DrainSide View

C H

K

J

I

D

2.13

A

Panel

DoorVent Option

CondenserAir Outlet

Filter Access

VentilationAir

Front View

5.75

F

W

G

D

A

C

K

2.13

I

J

2.63

9.06

P

M

L

O

E

.44 W

5.75

F

G

R

S1

S1

S1

S2

S2

T

H

Panel

Condenser

Return Air Opening

Back ViewMIS-3077

Heater

Drain

AirAir Outlet

Front View

Cond.

Access

Side View

Inlet

InstallationBottom

Panel

Bracket

MountingSide Wall

Electric

Brackets

Heat

FlashingShippingLocation

OptionalElectricalEntrances

High VoltageElectrical

ElectricalEntrance

VentilationAir

Vent OptionDoor

Entrance

(Built In)

Top Rain

Low Voltage

Access Panel(Lockable)

Filter Access

DisconnectC. Breaker/

Built InRain Hood4 Pitch

Supply Air Opening

Note 1:Extreme Duty control panel door is shown and is standard. For optional flush Moderate Duty Control Panel

Cover, order Control Cover option M. See Nomenclature on Page 8.

See

Note 1

See

Note 1

sseccAecivreSrofderiuqeRsecnaraelCwolfriAresnednoCetauqedAdna

SLEDOM EDISTFEL EDISTHGIR

1VR3W "51 "02

1VL3W "02 "51

1VR6W,1VR5W "02 "02

1VL6W,1VL5W "02 "02

otderiuqeRsecnaraelCmuminiMslairetaMelbitsubmoC

SLEDOM TCUDRIAYLPPUS

TEEFEERHTTSRIF TENIBAC

1VL/R3W "4/1 "0

1VL/R5W1VL/R6W

"4/1 "0

NOTE: For side by side installation of two (2) W*RV models there must be 20" between

units. This can be reduced to 15" by using a W*LV model (left side compressor and

controls) for the left unit and W*R (right side compressor and controls) for right unit.

8/12/2019 Bard s3426

8/8


Bard Manufacturing Company, Inc.

Bryan, Ohio 43506

www.bardhvac.com

Since 1914 . . . Moving ahead, just as planned.

Due to our continuous product improvement policy,

all specifications subject to change without notice.

ynarof"seraps"saderedisnocebyehttahtdednemmocersiti,eroferehT.yllacoldnuofebtonyamdnangisedtcudorpsihtoteuqinuerastrapgniwollofehT

.liatederomrofstsilstrapetelpmocotrefeR.deriuqerebreveecivresdluohselbaliavayletaidemmiebdluowyehtosnoitallatsnilacitircnoissim

lacitirCnoissiMstnenopmoC noitpircseD ledoMtinU

.oNtraPdraB R-1VL/R3W S-1VL/R3W T-1VL/R3W R-1VL/R5W S-1VL/R5W T-1VL/R5W S-1VL/R6W T-1VL/R6W

553-0008 031-VFP-E5K43DPZrosserpmoC X

653-0008 031-5FT-E5K43DPZrosserpmoC X

753-0008 031-DFT-E5K43DPZrosserpmoC X

253-0008 031-VFP-E5K45DPZrosserpmoC X

063-0008 031-5FT-E5K45DPZrosserpmoC X

163-0008 031-DFT-E5K45DPZrosserpmoC X

853-0008 031-5FT-ECK27DPZrosserpmoC X

953-0008 031-DFT-ECK27DPZrosserpmoC X

6700-740-6018S lortnoCdemmargorP/wrotoMresnednoCMCEPH2/1 X X X

0800-740-6018S lortnoCdemmargorP/wrotoMresnednoCMCEPH2/1 X X X X X

5700-250-6018S lortnoCdemmargorP/wrotoMrewolBMCEPH2/1 X X XA9700-710-7018S lortnoCdemmargorP/wrotoMrewolBMCEPH4/3 X X X X X

412-1565 VXTgnilooC X X X

512-1565 VXTgnilooC X X X

312-1565 VXTgnilooC X X

940-0565 evlaVdioneloS X X X X X X X X

2640-4081 sdaeLdeReralFOC#056hctiwSerusserPhgiH X X X X X X X X

6830-4081 sdaeLeulBeralFIC#54OC#23hctiwSerusserPwoL X X X X X X X X

930-8048 tatsomrehTeniLegrahcsiD X X X X X X X X

821-6048 CDV5ISP007-0recudsnarTerusserP X X X X X X X X

840-7048 AV56V42-V802/032remrofsnarT X X X X X

050-7048 AV56V42-V084remrofsnarT X X X

520-1048 A04eloP-2rotcatnoCrosserpmoC X X

720-1048 A03eloP-3rotcatnoCrosserpmoC X X X X X X

880-1028 eludoMlortnoCrosserpmoC X X X X X X X X

621-1028 rotinoMesahP X X X X X X421-1028 draoBlortnoCrewolB X X X X X X X X

140-1038 ylppuSCDV5 X X X X X X X X

321-1028 yaleRetatSdiloS X X X X X X X X

410-1038 rosneSriAroodtuO X X X X X X X X

660-3048 rellortnoCtatsomrehT X X X X X X X X

111KS tiKtratSdraH 1

dellatsnIdleiFlanoitpO X X

Form No.

S3426

December, 2013

Supersedes: S3426-813

1 Vent option X does not have exhaust capability. May require separate field supplied barometric relief in building.

2 Blank-Off Plate recommended whenever maximum requirements against outside air intrusion are needed.

3 Stainless Steel cabinet and coated coils recommended for maximum durability in all harsh environments.

4Moderate Duty Door not recommended for harsh environments where wind and/or very fine dust are prevalent.

5All units equipped with flush Moderate Duty Door can be field retrofitted with the Severe Duty Door.

Order DDD3A-color for W3R, DDD3L-color for W3L, DDD5A-color for W5R or WGR and DDD5L-color for W5L or W6L.

KW

Electric

Heat @Rated

Voltage

MODEL

SERIES

Wall-Mount

OTHER OPTIONS

X - None

S - Hard Start Kit1-Phase Only

ELECTRICAL RATING

R - 230/208-60-1 & 220/200-50-1

S - 230/208-60-3 & 220/200-50-3

T - 460-60-3 & 400-50-3

REVISIONS

VENTILATION OPTIONS

X - Barometric Fresh Air Damper (Std.)1

B - Blank-off Plate2

FILTER OPTIONS

X - One Inch Throwaway (Standard)

W - One Inch Washable

P - Two Inch Pleated (MERV 8)

COLOR OPTIONS

X - Beige (Standard)

1 - White4 - Buckeye Gray

5 - Desert Brown6 - Dark Bronze

A - Aluminum

S - Stainless Steel3

COIL OPTIONSX - Standard Copper Tube/Aluminum Fin

1 - Phenolic Coated Indoor Coil2 - Phenolic Coated Outdoor Coil

3 - Phenolic Coated Indoor & Outdoor Coil

CONTROL COVER DOOR

X - Extreme Duty Door (Standard)

M - Moderate Duty Door45

NOMINAL TONS

3 - 3 Ton (37,000 on 60Hz; 33,700 on 50Hz)

5 - 5 Ton (54,000 on 60Hz; 49,200 on 50Hz)

6 - 6 Ton (68,000 on 60Hz; 61,900 on 50Hz)

COMPRESSOR &

CONTROLS LOCATIONR - Right Side

L - Left Side

SYSTEM DESIGN

Variable Capacity

(Digital Compressor) ECU

W 3 R V 1 R 10 X X S X 3 X

Enviro nmental Control Unit (ECU) Wall-Mount Mod el Nomenclature

SPECIAL

FEATURES

1 Factory standard PTCR motor starting device must be removed if optional SK111 hard start kit is field installed.

bard s3426

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