AQU

ACIA

T CA

LEO

10 - 2014

NA 09.159 E

I ns t r uc t i on manua l

CONTENTS PAGE

1 INTRODUCTION 3

2 TRANSPORTING THE UNIT 3

3 RECEIPT OF GOODS 3

3.1 Check on delivery 33.2 Identifying the equipment 3

4 SAFETY INSTRUCTIONS 3

5 DECLARATION OF CONFORMITY 4

6 WARRANTY 4

7 UNIT LOCATION 4

8 HANDLING AND POSITIONING 4

8.1 Close-up view of anchorage point for handling the unit 58.2 Type of shackle recommended for handling the unit 5

9 INSTALLATION 5

9.1 Installation of the unit 59.1.1 Anti-vibration mounts (Supplied as standard) 69.1.2 Ground mounting of base frame 6

9.2 Installing the control terminal 69.2.1 Specifications: 69.2.2 Installation 6

10 MAIN COMPONENTS OF THE REFRIGERATING CIRCUIT 7

11 HYDRAULIC CONNECTIONS 7

11.1 Pipe connections 811.2 Installing the filter 811.3 Installing the flexible connectors 811.4 Safety valve 811.5 Transmission of noise 8

11.5.1 Structure-borne noise 811.5.2 Location 8

11.6 Connection diagrams 911.6.1 Quick diagram selection table 911.6.2 Connection to a new system 911.6.3 Connection to an existing system 11

11.7 Frost protection (for the account of the fitter) 1211.7.1 Protecting your system 1211.7.2 Procedure 1211.7.3 Adjusting settings P1 and P93 based on the glycol content 1211.7.4 Effect of the glycol content on system performance 13

12 ELECTRICAL CONNECTIONS 13

12.1 Wire cross-sections and electrical specifications 1312.2 Connections to be made before commissioning the unit 14

13 COMMISSIONING 14

13.1 Checks 1413.2 Starting the unit 1413.3 Bleeding the air 1413.4 Differential water pressure switch 15

NA 09.159 E EN - 1

FR

DE

ES

IT

14 CONTROL 15

14.1 Overview 1514.2 The terminal and its display 15

14.2.1 Display on the terminal screen 1514-2-2 Position of the dial (No. 14) on the terminal 1614-2-3 Accessing the settings 1614-2-4 Resetting all the settings to their factory-set values 16

14.3 Operating modes 1914.4 Auxiliaries 19

14-4-1 Auxiliary heater P6 = 1 or 2 2014-4-2 Using a boiler as a backup 20

14.5 On/Off control inputs 2114-5-1 Turning off or 'bypassing' your heat pump or the auxiliaries via remote control 2114-5-2 Turning on the frost protection via remote control: P2 = 2 21

14.6 Control board 2214.7 Components 23

14-7-1 Outdoor fan 2314-7-2 Reversing valve 2314-7-3 Circulator 2314-7-4 Steam injection on/off valve 23

14.8 Functions 2314.8.1 Automatic restart 2314.8.2 Short-cycle protection 2314.8.3 Automated self-regulating control 23

14.9 Options 2314.9.1 Swimming pool control 2314.9.2 Domestic hot water heating 23

15 FAULTS 23

15.1 Temporary and permanent 2315.2 Tables 2415.3 Acknowledging faults 2415.4 Sensor values 2415.5 Compressor operating limits 25

16. SPECIFICATIONS 25

16.1 Hydraulic module schematic 2516.2 Available pressure curves (pure water) 2516.3 Technical specifications 26

17. TEST MODE 27

18. CARE AND MAINTENANCE 27

18.1 Aquaciat Caleo operating readings 2718.2 Unit maintenance and servicing 28

18.2.1 Safety instructions 2818.2.2 Readings and checks 2818.2.4 Disassembling the compressor 29

19 ECODESIGN 29

20 TROUBLESHOOTING OPERATING PROBLEMS 30

EN - 2 NA 09.159 E

EN

The TDC series AQUACIAT CALEO heat pumps meet the heating needs of residential housing and the service industry.They are air-cooled condensation units. These heat pumps provide safe and dependable heating in the operating range for which they have been designed.All the units are factory tested and checked. They are supplied with a full refrigerant charge.Every unit meets standards EN 60-204 and EN 378-2 as well as the following European directives: - Machinery 2006/42/EC - EMC 2004/108/EC - LVD 2006/95/EC - PED 97/23/EC-> Category 2Technicians who install, commission, operate and service the unit must possess the necessary training and certifications, understand the instructions given in this manual and be familiar with the specific technical characteristics of the installation site.

1 INTRODUCTION

During shipment, the unit must be securely strapped in place to prevent it moving and protect it from damage.If the unit is shipped in a container, the container must be easily loadable and unloadable.

3.1 Check on deliveryCheck the unit for any damage or missing components upon delivery.Make mention of any damaged or missing parts on the delivery slip.IMPORTANT: you must notify the carrier of any damage and/or missing parts by registered letter within three days of the delivery date. Store at a maximum temperature of 50°C.

3.2 Identifying the equipmentEach unit has a data plate (A) bearing an identification number.Check the plate on the unit to make sure you have received the right model.Please include the identification number in all correspondence with CIAT.

To avoid any risk of accident during installation, commissioning and adjustments, the following equipment specificities must be taken into account: - Pressurised refrigerant circuits - Presence of refrigerant - Presence of electrical voltageOnly experienced and qualified persons may work on such equipment.The recommendations and instructions in this manual and on each drawing provided with the unit must be followed.In the case of units with pressure equipment or components, we recommend that you contact your professional organisation for information on regulations that apply to operators or owners of pressure equipment or components. The specifications of this pressure equipment or these pressure components are given on the data plates or in the regulatory documentation provided with the product.A fire protection device is fitted as standard on all units.

Overpressure protectionEach refrigerating circuit in each unit is protected against the risk of overpressure resulting from fire.

Safety valves- The safety valve or valves protect the HP and LP circuits against overpressure caused by an increase in the outdoor temperature, when the unit is off. (E.g.: external fire)- This safety valve is not considered a safety device as defined in section 2.11 of appendix 1 of the pressure equipment directive.

Allowable pressure (PS) LP side- The LP value (given on the name plate) corresponds to the situation with the unit switched off. This value is given according to the pressure/temperature ratio with an outdoor temperature of 50°C, depending on the unit. These temperatures correspond to the least favourable situation the unit could be subjected to, excluding an external fire. The LP side pipes are sized for the maximum allowable pressure.The LP value is linked to the relevant unit and cannot be exceeded.

IMPORTANT: Make sure the main disconnect switch in the unit's electrical panel is in the OFF position before working on the unit.

4 SAFETY INSTRUCTIONS

2 SHIPMENT OF THE UNIT

3 UNPACKING

A

NA 09.159 E EN - 3

These units are typically used for refrigeration and are not required to withstand earthquakes. Earthquake resistance has therefore not been checked.

The fitter must check the following points before setting up the unit in its intended location:

- Unit designed for outdoor installation.

This unit is designed to be rain resistant, but it may be installed under a shelter with adequate ventilation on all four sides. (Choose a sunny location whenever possible).

- Ductable unit: the room in which the unit is installed must comply with the requirements of EN 378-3 and other specifications applicable on the installation site.

- The surface area of the ground or structure must be strong enough to bear the unit's weight.

- The unit must be perfectly level.

- There must be sufficient clearance around and above the unit to allow servicing and maintenance (see assembly drawing provided with unit).

- Take the precautions required by regulations governing the storage and installation location to ensure adequate stability of the unit (strong winds, earthquakes, etc.) particularly if it is to be installed on a roof. In some cases rooftop installation may be prohibited.

- The unit must be anchored if wind speeds can exceed 120 km/h.

- The intended location must be above flood level.

- Position the unit above the average snow depth in the region where the unit is installed.

Provide a means of draining defrost water and preventing it freezing on the ground.

- Sound level:

Our units are designed to operate quietly.

When designing your system, you should take into consideration how and where it will be placed outdoors in order to limit structure-borne and airborne radiated noise.

To ensure vibrations transmitted by solid materials are reduced as much as possible, fitting anti-vibration mounts between the unit support and frame (see the section on anti-vibration mounts) is strongly recommended, as is fitting flexible couplings on the hydraulic pipes.

Have an analysis carried out by an acoustical engineer.

IMPORTANT: The ambient temperature must not exceed 50°C during the unit's off cycles.

5 DECLARATION OF CONFORMITY

6 WARRANTYSee our general terms and conditions of sale.

See the "Declaration of conformity" document.

Applicable standards and directivesCIAT water chillers comply with:

EUROPEAN DIRECTIVES- PED 97/23/EC- EMC (2004/108/EC)- Machinery 2006/42 )- RoHS 2011/65/EU- Gas appliances 2009/142/EC

EC REGULATION- REACH 1907/2006

HARMONISED STANDARDS- EN 50581 (2012) and EN 378-2 (2012)

7 UNIT LOCATION

8 HANDLING AND POSITIONINGTo raise the unit, attach the slings to the designated lift holes.

The coordinates of the centre of gravity and the positions of the anchorage points are given on the assembly drawing.

The unit may also be lifted and moved using a forklift truck.

If a forklift truck is used, you must take the necessary precautions to prevent the unit sliding on the forks. You must also follow the instructions listed on the label on the unit. Failure to follow these instructions may cause the unit to fall and cause physical injury.

EN - 4 NA 09.159 E

EN

WARNING:

- Attach the slings only to the anchorage points intended for this purpose and which are designated on the unit.

- Use slings with a suitable lifting capacity and follow the lifting instructions on the drawings provided with the unit.

- Caution: the centre of gravity is not necessarily at the middle of the unit and the forces applied to the slings are not always identical.

- Raise and lower the unit carefully. Take care not to tilt it by more than 15° to avoid any subsequent problems with its operation.

- To avoid damaging the casing, use textile slings with shackles.

- Use a frame with an adjustable centre of gravity to spread the slings away from the top of the unit.

- Always protect the unit casing (panels, posts, front access door) from damage during handling. Only the base frame is designed to withstand handling.

- Safety during lifting can be ensured only if all these instructions are followed.

Failure to do so may result in damage to the equipment and physical injury.

Models TDC 80Z TDC 100Z TDC 120Z TDC150Z

Empty weight (kg) 398 465 482 497

8.1 Close-up view of anchorage point for handling the unit

8.2 Type of shackle recommended for handling the unit

We recommend using shackles to handle the unit.

- The unit must be loaded and unloaded by an equipment handling firm using appropriate, standardised tools and materials.

STAS forged steel bow shackle with pin

- STAS code: 130D

- Working load limit: 630 kg

This diagram is provided for illustrative purposes only. Always refer to the pictograms on the unit.

A = 1100

min

. 250

0

20.5 mm lifting holes

9.1 Location of the unit

Clearances to be maintained

There are two reasons why it is important that the units are installed with the necessary clearances:

Sothatairdischargedbythefanisnotdrawninthroughtheintakeandrecirculated.

Toallowsufficientroomformaintenanceontheunit.

Two units: A = 2 mThree or more units: A = 3 m

For information on the dimensions, weight, anchorage points and centre of gravity, refer to the drawings provided with the unit.

9 LOCATION

Top view

NA 09.159 E EN - 5

9.1.1 Anti-vibration mounts (Supplied as standard)Anti-vibration mounts must be installed beneath the unit for applications that generate extremely low vibrations.

The mounts must be placed at the locations illustrated below.

Models A B C

TDC 80Z 300 1147 50 x 100

TDC 100Z - TDC 120Z - TDC 150Z 300 1147 50 x 120

9.1.2 Ground mounting of base frameThe frame may be affixed to the ground. (Mounts with bolts not supplied by CIAT). The hardness is defined by the unit's weight and centre of gravity.

Models L1 L2 L3 L4 L5

TDC 80Z to TDC 150Z 1987 1044 316 1355 30

9.2 Installing the control terminal At delivery, the control terminal is located inside the machine, near the electrical box.

9.2.1 Specifications:

- Settings stored in memory for two hours following a power cut

- Blue backlit digital display

- Maximum dimensions: 128 x 85 x 31 mm

- Wall mounting plate

- Protection rating: IP 30

- Operating temperature limits: -15°C to +50°C

- Power supply: 12 V DC +/- 0.5 V

- Maximum consumption: 25 mA

- Class II insulation

9.2.2 Installation- Choice of locationIn most cases, the control terminal should be placed in the room in which the atmosphere is to be controlled.

This is because the terminal also works as a room thermostat and thus plays an active role in controlling the unit.

However, special applications (e.g. industrial, processes) may require water temperature control. If so, the terminal may be located anywhere without affecting control (see paragraph under the table in section 14.3).

- Location in room.As shown in Figure 1, the terminal should be installed at a recommended height of 1.5 m and at an accessible location away from sources of heat (e.g. chimney, sunlight) and draughts (windows, doors).

- MountingFirst detach the terminal from its mounting plate, as shown in Fig. 2.

Then attach the mounting plate to a wall using the screws and anchor bolts or a flush-mount box (60 mm centre distance) using the holes 1 ( Fig. 2).

To do so, loosen the screw 2 (Fig. 3) and remove the terminal block cover 5.

If necessary, remove the knockouts 3 provided (Fig. 3) to allow the connection cable to be routed through.

- Connection1) Attach the two wires to the terminal (Fig. 4).

2) Replace the terminal block cover 5 and fasten it in place with the screw 2 (Fig. 3).

3) Place the thermostat on its mounting plate by first inserting the tabs 4 (Fig. 3) and then pushing down on the thermostat until it snaps into place.

4) Connect the two wires between the thermostat and the control board on terminal block J2 on the unit's control board (Fig. 5).

5) Cable length < 50 m maximum

Cable cross section: AWG 16 to 28; 0.2 mm² < S < 1.5 mm²

1.50

m

Min. 20 cm

Fig.1 Fig.2 Fig.3 Fig.4 Fig.5

Control board

Terminal block J2

2-wire cable

1.5 mm250 m max.

EN - 6 NA 09.159 E

EN

- The pipes and tubes should not transmit any axial or radial forces to the exchangers or any vibrations.

- The water used must be analysed and, if necessary, treated (we recommend contacting a qualified water treatment specialist).

The analysis will reveal whether the water is suitable for use with the various materials it will come into contact with and prevent the formation of electrolytic couples:

99.9%coppertubesbrazedwithcopperandsilver

Threadedbronzecouplingsorflatsteelflanges,dependingon the unit model

PlateheatexchangersandconnectionsmadeofAISI316/DIN 1.4401 stainless steel brazed with copper and silver

- The water circuit should have the least possible number of elbows and horizontal sections at different levels.

- Install shut-off valves near the water inlets and outlets in order to be able to isolate the exchangers.

- Install manual or automatic bleeder valves at circuit high point(s).

- The manual or automatic bleed valves fitted on the machine are not intended to be used to bleed air from the rest of the water circuit.

- A static pressure of 1 bar must be maintained at all times (machine and pump off or on) on the pump intake.

- Install drain connections at all circuit low point(s).

- Insulate the pipes and tubes (after performing leak tests) in order to reduce heat losses and prevent damage from frost.

- Install heating elements on all pipes that could be exposed to freezing temperatures.

- The fitter must provide the necessary systems for filling and draining the coolant.

- To keep the pressure in the coolant circuit below the intended operating pressure, avoid introducing static or dynamic pressure into the circuit.

Scale, algae or sludge deposits may form and corrode and wear away the pipework if untreated or incorrectly treated water is used. CIAT shall not be held liable for damage resulting from the use of untreated or incorrectly treated water or of seawater or brackish water.

Heat pump for boiler back up operation: It is highly recommended to install a mixing tank on the water circuit between the heat pump and the boiler.

Check the compatibility of the boiler with the heat pump control. If the boiler has a steel heating source, the heat pump should not run at the same time as the boiler if the conditions require a water control setpoint below +40°C. The heat pump should therefore operate alternately with the boiler and the boiler corrosion protection should prevent the circulator operating unless the water is heated to above around +40°C by the burner.

NOTE: Do not exceed the maximum service pressure of 4 bar.- The unit is supplied fitted with a water flow rate sensor.

If the system is not to be used for an extended period of time, drain the entire water circuit and fill it with nitrogen to prevent any risk of corrosion.

10 MAIN COMPONENTS OF REFRIGERATION CIRCUITCompressorAquaciat Caleo units use hermetically sealed scroll compressors.

OilThe compressor is lubricated with Copeland 3MAF (32 cSt) polyol ester (POE) oil on units charged with R407C refrigerant. If 3MAF oil is unavailable, ICI Emkarate RL 32 CF oil or Mobil EAL Arctic 22 CC oil may be used top up the compressor.

RefrigerantAquaciat Caleo units use R407C refrigerant.

Global Warming Potential of R407C = 1520 GWP, in compliance with standard EN 378-1

ExchangersThe condensers are single-circuit brazed-plate heat exchangers.

They are heat-insulated with 10 mm thick polyurethane foam.

The coolant must be filtered and the inside of the condenser inspected.

Repairs or changes of any kind to the plate heat exchangers is prohibited. Only replacement of the heat exchanger by another original heat exchanger and by a qualified technician is authorised. If the heat exchanger is replaced, this must be noted in the servicing booklet.

Thermostatic expansion valveEvery unit is fitted with one-piece hermetically-sealed thermostatic expansion valves that are set in the factory to maintain superheat of 5-7°C under all operating conditions.

DryerEvery unit is fitted as standard with a filter dryer to keep the refrigeration circuit clean and free of moisture. The filter dryer consists of a molecular sieve that neutralises any acids in the refrigeration circuit.

Liquid sight glassLocated on the liquid line just after the filter dryer, the liquid sight glass is used to monitor the charge in the unit and check for moisture in the circuit. Bubbles in the sight glass mean that the refrigerant load is insufficient or that non-condensable gases are in the refrigeration circuit.

If the sight glass indicator turns yellow, there is moisture in the circuit.

11 HYDRAULIC CONNECTIONSHydraulic connections must be made in accordance with the diagram delivered with the unit. This diagram shows the positions and dimensions of the water inlets and outlets on the exchangers.

Also follow the requirements below when making these connections:

- Connect the inlet and outlet pipes to the corresponding ports shown on the unit.

- In order to meet the operating conditions (flow rates and pressure losses) a sizing calculation must be performed.

The diameters of the pipes may therefore be different from those of the exchanger.

NA 09.159 E EN - 7

11.1 Pipe connections Water connectionsSupply pipe connections: use two spannersto tighten the couplings.

Models TDC 80Z TDC 100Z TDC 120Z TDC 150Z

dia. (male gas) 1" 1/2

Water flow rates and pipe fittings:

Models Minimum flow rate (m3/h)

Nominal flow rate (m3/h)

Hot water production

Customer hydraulic connections

copper tube steel tube PE tube (polyethylene)

TDC 80Z 3.1 4.2 42 x 1 – DN40 40 x 49 – DN40 - 1’’1/2 40 x 3.7

TDC 100Z 4.0 6.0 50 x 1 - DN50 50 x 60 - DN50 - 2'' 50 x 4.6

TDC 120Z 5.1 7.0 50 x 1 - DN50 50 x 60 - DN50 - 2'' 50 x 4.6

TDC 150Z 5.7 8.4 50 x 1 - DN50 50 x 60 - DN50 - 2'' 50 x 4.6

Minimum diameters calculated for a water connection for your machine 25 m away from its connection to the system.

11.2 Installing the filter Installation of filter ==> mandatoryTo protect against the risk of clogging in or damage to the plate heat exchanger, a screen filter kit must be installed on the water return. The filter should be as close as possible to the exchangers and be easy to access for disassembly and cleaning.Insulate the filter or install it indoors (protect from freezing temperatures).

Install in the direction of flow.

Filter mesh: 600 µm maximum

11.3 Installing the flexible connectors The pipes and tubes should not transmit any forces.

Flexible connectors must be used to connect the water pipes to limit as much as possible the transmission of vibrations indoors. It is essential that they be fitted if the unit is installed on anti-vibration mounts. Insulate the pipes and hoses carefully to prevent heat loss and condensation.

Precaution:

As the flexible connections are insulated, ensure they are not bent too acutely to avoid pinching the inner tube and restricting the flow of water.

Always maintain the appropriate straight sections (L) and bend radii (R).Min. L > 4 x dia. - R flexible connectors: 1 1/2" - Uninsulated, R ≥ 392 mm - Insulated, R ≥ 350 mm

11.4 Safety valve Aquaciat Caleo is fitted with a 4 bar hydraulic valve.

Important: to protect against damage and injury, keep all shut-off valves open. Cut off the valve on the heating equipment (Aquaciat Caleo, electric heater, boiler, domestic hot water tank) when the equipment is powered on.

11.5 Transmission of noise 11.5.1 Structure-borne noise

To avoid transmitting noise indoors, make sure that hoses and flexible connectors passing through walls are not in direct contact with any masonry and are fitted with pipe supports lined with vibration-damping material. Pipe supports must be fitted with anti-vibration material. This will prevent unwanted noise form being transmitted into the building.

11.5.2 LocationThe predominant problem with outdoor units is disturbance caused to the neighbourhood because of noise.

This can be minimised by following two rules:- Use natural barriers wherever possible (e.g. mound of earth, opaque wall) to separate the equipment as much as possible from your neighbours.- As far as possible, avoid placing equipment adjacent to walls. Walls can increase noise levels considerably and reflect noise in various directions.For your own comfort, avoid locating the equipment too close to sensitive areas (such as bedroom windows).

EN - 8 NA 09.159 E

EN

11.6.2 Connection to a new system

System without a boiler:

One emitter type (underfloor heating system or radiators or fan coil units) Options:- 9 or 15 kW loop heaterProvides auxiliary electric power and ensures minimal heating in the event of a failure.or- 9 kW electric auxiliary unitProvides auxiliary electric power and ensures minimal heating in the event of a failure.Install inside eight-connection mixer tank.

Connection possibilities (optional)- Swimming pool heating- Production of domestic hot water (DHW)

11.6 Connection diagrams 11.6.1 Quick diagram selection table

System

One emitter type Two emitter types

Without options

With options

Without options

With options

Loop heater

Auxiliary heating

device in tank

Loop heater only

Auxiliary heating

device in tank

Loop heater + DUO module

Auxiliary heating

device in tank +DUO

module

DUO module

only

NewHeat pump without boiler Diagram 1 Diagram 1 Diagram 1 Diagram 2 Diagram 2 Diagram 2 Diagram 3 Diagram 3 Diagram 3

NewHeat pump + Boiler Diagram 4 - - Diagram 5 - - - - Diagram 6

ExistingHeat pump +

Boiler

3-way valve Diagram 7 - - - - - - - Diagram 9

4-way valve Diagram 8 - - - - - - - Diagram 10

ABB

AAB

B

A

Loop heater (option)

Diagram 1

Pool heating (option)

DHW heating (option)

200 l or 400 l MIXER TANK

(option)

Auxiliary heaters

HEAT PUMPFilter

Flexible connections

FillingRadiators

Fan coil units

Radiant floor

Two emitter types (underfloor heating system with three-way valve and radiators or fan coil units)Options:- 9 or 15 kW loop heaterProvides auxiliary electric power and ensures minimal heating in the event of a failure.or- 9 kW electric auxiliary unitProvides auxiliary electric power and ensures minimal heating in the event of a failure.Install inside eight-connection mixer tank.

Connection possibilities (optional)- Swimming pool heating- Production of domestic hot water (DHW)

ABB

AAB

B

A

Loop heater (option)Diagram 2

Pool heating (option)

DHW heating (option)

200 l or 400 l MIXER TANK

(option)Auxiliary heaters

HEAT PUMPFilter Flexible

connections

Filling

Radiators

Radiant floor

NA 09.159 E EN - 9

Two emitter types (underfloor heating system with three-way valve and radiators or fan coil units)

Underfloor heating system with a DUO hydraulic module kitThis kit allows independent control of two types of emitter with different water temperatures. Kit contents: Insulated pressure-relief tank, Three-way valve, Circulator for radiant floor, etc.Options:- 9 or 15 kW loop heaterProvides auxiliary electric power and ensures minimal heating in the event of a failure.or- 9 kW electric auxiliary unitProvides auxiliary electric power and ensures minimal heating in the event of a failure.Install inside eight-connection mixing tank. Connection possibilities (optional)- Swimming pool heating- Production of domestic hot water (DHW)

Installation with a new boiler:

One emitter type (underfloor heating system or radiators or fan coil units) Heat pump + boiler installed upline of mixing tank

Options:- Swimming pool heating- Production of domestic hot water (DHW)

Two emitter types (underfloor heating system with three-way valve and radiators or fan coil units) Heat pump + boiler installed upline of mixing tankOptions:- Swimming pool heating- Production of domestic hot water (DHW)

Two emitter types (underfloor heating system with three-way valve and radiators or fan coil units) Heat pump + boiler installed upline of mixing tank

Underfloor heating system with a DUO hydraulic module kitThis kit allows independent control of two types of emitter with different water temperatures. Kit contents: Insulated pressure-relief tank, Three-way valve, Circulator for radiant floor, etc.Options:- Swimming pool heating- Production of domestic hot water (DHW)

ABB

AAB

B

A

Loop heater (option)

Diagram 3

Pool heating (option)

DHW heating (option)

200 l or 400 l MIXER TANK

(option)DUO

MODULEElectric auxiliary

heaters

HEAT PUMPFilter Flexible

connections

Filling

Radiators

Radiant floor

ABB

AAB

B

A

Diagram 4Pool

heating (option)

DHW heating (option)

200 l or 400 l MIXER TANK

(option)

HEAT PUMPFilter

Flexible connections

Filling

Radiators

Radiant floor

Fan coil units

BOILER

ABB

AAB

B

A

Diagram 5Pool

heating (option)

DHW heating (option)

200 l or 400 l MIXER TANK

(option)

BOILER

HEAT PUMPFilter

Flexible connections

Filling

Radiators

Radiant floor

ABB

AAB

B

A

ABB

A

Diagram 6Pool

heating (option)

DHW heating (option)

200 l or 400 l MIXER TANK

(option)

BOILER

HEAT PUMPFilter

Flexible connections

Filling

Radiators

Radiant floorDUO MODULE

EN - 10 NA 09.159 E

EN

11.6.3 Connection to an existing system

Existing installation: Boiler and domestic hot water tank:

One emitter type (underfloor heating system or radiators or fan coil units)Existing system with a three-way valve

Options:- Swimming pool heating- Production of domestic hot water (DHW)

One emitter type (underfloor heating system or radiators or fan coil units)Existing system with a four-way valve

Options:- Swimming pool heating- Production of domestic hot water (DHW)

Two emitter types (underfloor heating system and radiators or fan coil units) Existing system with a three-way valve

Underfloor heating system with a DUO hydraulic module kit allowing independent control of two types of emitter with different water temperatures. Kit contents: Insulated pressure-relief tank, Three-way valve, Circulator for radiant floor, etc.

Options:- Swimming pool heating- Production of domestic hot water (DHW)

ABB

AAB

B

A

Diagram 8

Pool heating (option)

DHW heating (option)

200 l or 400 l MIXER TANK

(option)

HEAT PUMP

Filter

Flexible connections

Filling

Radiators

Radiant floor

Fan coil unitsDHW tank with boiler BOILER

ABB

AAB

B

A

Diagram 9

Pool heating (option)

DHW heating (Option)

200 l or 400 l MIXER TANK

(option)

HEAT PUMPFilter

Flexible connections

Filling

Radiators

Radiant floor

DHW tank with boiler BOILER

ABB

AAB

B

A

Diagram 7

Pool heating (option)

DHW heating (option)

200 l or 400 l MIXER TANK

(option)

HEAT PUMP

Filter

Flexible connections

Filling

Radiators

Radiant floor

Fan coil unitsDHW tank with boiler

BOILER

DUO MODULE

3-way valve

4-way valve

3-way valve

NA 09.159 E EN - 11

Two emitter types (underfloor heating system and radiators or fan coil units) Existing system with a four-way valve

Underfloor heating system with a DUO hydraulic module kit allowing independent control of two types of emitter with different water temperatures. Kit contents: Insulated pressure-relief tank, Three-way valve, Circulator for radiant floor, etc.

Options:- Swimming pool heating- Production of domestic hot water (DHW)

Legend to diagrams: Control valve Circulating pump

Shut-off valve Check valve

3-way valve 4-way valve

ABB

AAB

B

A

Diagram 10

Pool heating (option)

DHW heating (Option)

200 l or 400 l MIXER TANK

(option)

HEAT PUMPFilter

Flexible connections

Filling

Radiators

Radiant floor

DHW tank with boiler

BOILER

DUO MODULE

4-way valve

11.7 Frost protection (for the account of the fitter)

Depending on whether you live in your home year-round or seasonally (principal or secondary residence) and on its location (e.g. hot, temperate or cold climate, high altitude), your system may be subject to freezing temperatures.

There is no need to add glycol to your system if you are absolutely sure that there is no risk of freezing in your area.

If this is not the case, follow the procedure below:

11.7.1 Protecting your systemTo protect your system and avoid all risks of it freezing should it be intentionally or unintentionally turned off, we strongly advise that you: Either drain the water circuit (by uncoupling the unit inlet and outlet)

Or take the following precautionsProtect your indoor water circuit with a mix of water, antifreeze and corrosion inhibitor (and, possibly, a biocide). Using a corrosion inhibitor will also prevent the formation of sludge caused primarily by corrosion.You may use refrigerants made with monopropylene

glycol or a natural compound containing one or more corrosion inhibitors (never use monopropylene glycol by itself; always mix it with corrosion inhibitors).

Do not use products containing monoethylene glycol, which is toxic.

You may use: Ready-to-use solutions Dilutable products

If you use a concentrated dilutable solution, following the instructions below: Always dilute the antifreeze with water before adding it to the system. Never add them separately. Always mix the correct amounts of water, antifreeze and corrosion inhibitor in a container before adding them to the system.

11.7.2 Procedure1- Rinse and drain the system: Always flush the system completely and blow it out to remove any remaining water. Washing the system with a suitable cleaner is recommended (use a cleaner compatible with the system's materials). Follow up the final rinse with a complete drain of the system.

If you have an underfloor heating system, only use pressurised neutral gas (compressed air, nitrogen) to blow out the water remaining in the water loops.

2- Add the water, antifreeze, corrosion inhibitor and pressurise with the hydraulic pump: Drain the system thoroughly. Allow the mixture to run through the entire system for at least 2 hours before starting the heat pump. Use a hydrometer or a refractometer to check the final proportion obtained. Use litmus paper or a pH meter to check the pH obtained.

4- Affix, in a visible location, a label stating : That the system contains antifreeze, The name of the product and its supplier, The proportion and the pH at system start-up.

When necessary, always top up with the same type of mix initially used.

Annual maintenance: check the proportion and the pH.

11.7.3 Adjusting settings P1 and P93 based on the glycol contentTable of correspondences for the:Outdoor design temperature at installation site / Monopropylene glycol (MPG) content / Adjustment values for settings P1 and P93

Outdoor design temperature

MPG content to be used Freezing temperature Adjusting setting P1 Adjusting setting P93

-5°C 20% -8°C 1 0

-10°C 30% -15°C 1 -5

-15°C 40% -25°C 1 -10* Soft Start system optional*

EN - 12 NA 09.159 E

EN

11.7.4 Effect of the glycol content on system performance

20% concentration by weight of monopropylene glycol

40% concentration by weight of monopropylene glycol

Corrected heating capacity 1 x pure water heating capacity 1 x pure water heating capacity

Corrected water flow 1.02 x pure water flow 1.07 x pure water flow

System pressure drop 1.15 x pure water delta P 1.30 x pure water delta P

Glycol/water mixture factors

- The units are designed in accordance with the requirements of European standard EN 60204-1.- They comply with the requirements of the machinery and EMC directives.- All the wiring must meet the requirements of current regulations governing the place of installation(For France, NF C 15100).- Always refer to the wiring diagram provided with the unit.- Follow the electrical power supply specifications indicated on the data plate.- The voltage must remain within the range indicated: Power circuit: 400V(+10%/-10%)-three-phase-50Hz+Earth 230V(+6%/-10%)-three-phase-50Hz+Earth * Regulated system in France-Phaseunbalancemustnotexceed2%and10%forvoltageandcurrent,respectively.If any of the above requirements are not met, immediately contact your power supplier and make sure the unit is not turned on until the necessary corrective actions have been taken. Failure to do so will automatically void the CIAT warranty.Wiring is to be sized by the fitter to suit the characteristics of the installation site and comply with applicable regulations. Once the size of the wires has been selected, the fitter must determine any changes needed on site to facilitate wiring.- Wiring must be selected based on: The maximum nominal current (refer to the specifications in section 16.3). The distance between the unit and its power supply. The protection to be placed at the power source. The neutral operating conditions. The electrical connections (refer to the wiring diagram provided with the unit).- The electrical connections are to be made as follows: Connect the power circuit first. Then connect the protective conductor to the earth terminal. Connect the general fault alarm potential-free (dry) contact and the automatic operation control (where applicable). Interlock the compressors with the circulation pump.- The external control must be connected using a potential-free (dry) contact.- The motor disconnect switch has a breaking capacity of 15 kA. - The switch handle is supplied in the electrical cabinet to avoid damage in transit. It is your responsibility to fit it to the door.

It is your responsibility to protect the unit from mains voltage spikes and voltage spikes caused by lightning. Depending on the geographic location and the type of mains network (buried or overhead), you may have to install a lightning rod. Check your local electrical codes and regulations. Failure to comply with the requirements of standards in force in the country of installation (e.g. NF C 15100 in France) will void the CIAT warranty.

12.1 Wire cross-sections and electrical specifications The cross-section of the cable must be selected with care based on:- the maximum current rating of the unit (see electrical specifications table below),- the distance between the electrical box and the Aquaciat Caleo, - the room temperature

Models TDC 80Z TDC 100Z TDC 120Z TDC 150Z

Rated voltage of unit V 400 V / 50 Hz 3-ph + N + E

Compressor

Maximum operating current A 18.3 23.2 26.7 32

Starting current A 99 127 167 198

Starting current with Soft Start system* A 59 76 100 119

FanMaximum operating current A 1.5 1.5 1.5 1.5

Power W 860 860 860 860

PumpOutput power W 550 550 750 750

Rated current A 1.7 1.7 2.1 2.1

Current of entire unit A 22.2 27.1 31.7 36.3

D curve thermal-magnetic circuit breaker (not supplied) Am 25 32 40 40

(1) Electrical wiring (not supplied) - Electrical power supply mm2 10 16 25 25

(2) V2-K PVC cables mm2 4 6 10 10

(1) PVC cable with 2 or 3 charged conductors for temperatures < 60°C(2) PVC cable with 2 or 3 charged V2-K conductors (high temperature)Note: for other conditions, refer to French standard NF C 15-100.

12 ELECTRICAL CONNECTIONS

NA 09.159 E EN - 13

12.2 Connections to be made before commissioning the unit

It is advisable not to connect gauges to the refrigeration circuit when starting up the unit (except in the case of incidents).Taking temperature readings is sufficient in most cases.

13.1 Checks- Check for any refrigerant leaks.- Open the valves on the water circuits and make sure water is flowing through the heat pump.- Bleed all the air out of the water circuits.- Check for loose electrical connections.- Make sure that the power supply voltage is the same as the unit voltage and that it remains within the allowable limits (compared to the rated voltages).

13.2 Starting the unit1 - Turn on the unit.2 - Turn the dial on the terminal to the desired operating mode.3 - Using the + and - buttons, adjust the setpoint temperature to well above room temperature in heating mode.The compressor will start up after a few seconds.4 - Check the direction of rotation of the compressor in three-phase mode.If the direction of rotation is incorrect: fault d1.1 appears (low input current, hot crankcase, unusual noise, see section 16.2). To solve the problem, swap the two power supply phases.

13.3 Bleeding the airTo keep your system running smoothly and, more specifically, if your Aquaciat Caleo is installed at a high point, you must bleed the air contained inside it at the time of commissioning. This can be done by opening the manual bleed valve (located near the expansion vessel, compressor compartment) when turning the unit on or by using a section of the water line and an automatic bleed valve at a level above the Aquaciat Caleo.

Heating mode

Control terminal

TERMINAL BLOCK J2

Frost protection

Bypass

Shared

TERMINAL BLOCK J1

Stage 2

Stage 1 or boiler

Check the position:

(same as photo)

54

322

15

43

1

Electronic control board with daughter board

Fault reporting output

Phase input (J2 terminal box

PSU board)

CA

UT

ION

: con

tact

un

der

volta

ge 2

30V

In bypass only mode: remove the jumper between

terminals 4 and 5

J2

J1

44 33 22TERMINAL

BLOCK J15

Customer wiring

1

J15

1

54

322

15

43

1

13 COMMISSIONING

EN - 14 NA 09.159 E

EN

13.4 Differential water pressure switchAir in the differential water pressure switches could cause malfunctions to occur.It may be wise to bleed this air. To do this, simply loosen the nut at the bottom of the pressure switch (approximately 1/2 a turn until the air is purged) then retighten it. Next, check for leaks.

The differential water pressure switch is a safety component. Bypassing it is therefore strictly prohibited; doing so will create a safety hazard to property and people.

Control terminal

with display

Electronic control board with

daughter board

Nut at bottom

Out

In

For further information on reading and programming the terminal, refer to the manual provided with it.

Indicator 6: Compressor operationIndicator 5: Stage-1 electric auxiliary unit operationIndicator 4: Stage-2 electric auxiliary unit operationIndicator 3: Frost protection

Indicator 2: Pool heating: - Steady = pool heating on - Flashing = off, waiting for synchronised operation with filter pump

Indicator 1: Access to level-1 (customer) settingsIndicator 0: Access to level-2 (fitter) settings

14.2 The terminal and its display14.2.1 Display on the terminal screen

Screen

OK

1 Current day2 . Display of temperature setting, time or fault code. 3 Daily programme bar ( : Comfort, : Economy). 4 Compressor operation status indicator. 5 Operating status indicator for auxiliary heaters (option). 6 Operating status indicator for the boiler (option). 7 Pool heating operation status indicator (option). 8 Parameter access mode status indicator (see

terminal manual).9 Test mode operation symbol.10 Up/down buttons. 11 Room temperature display, when and are

pressed together. 12 Change modes (comfort, economy, programmed), confirm selection or cancel faults.

13 Dial selection dot. 14 8-position operation mode dial. 15 Defrost mode. 16 Bypass.

14 CONTROL14.1 OverviewThe unit is controlled by the following components:

NA 09.159 E EN - 15

14-2-3 Accessing the settingsYou will have to adjust a number of settings to suit your particular system and requirements. These settings (identified by the letter 'P' followed by a digit) will help you to keep your unit operating at peak performance.The complete table of settings is given on the following page.

To access the settings, do as follows:

Turn the terminal dial to one of the following positions:

- Access customer level parameters : press OK and + simultaneously for 3 seconds

- Access fitter settings: press OK and + simultaneously for 5 seconds.

Changing the settings- Press + or - to display the desired setting.

- Press OK to display the value of the setting

- Press + or - to change the value of the setting.

- Press OK to confirm the change and go back to the settings numbers.

Exiting parameters mode: press and hold OK for 3 seconds or wait 1 hour.

14-2-4 Resetting all the settings to their factory-set values- Turn the dial to Off.

- Display setting P80 (software version)

- Press + and - for 5 seconds (the display does not change).

Only qualified personnel may access the settings.

14-2-2 Position of the dial (No. 14) on the terminal

Dial positionKey on keypad

Mode Display

Clock

Advance the minutes.

Minutes move quickly when pressed and held.

Reverse the minutes.

Minutes move quickly when pressed and held

Go to following day Time and day adjustment, unit off

Cooling mode programming

Not used Not used Not used Not used

Cooling mode

Not used Not used Not used Not used

On/off

4 cursor display

4 cursor display -------------------

Off and reset mode

permanent fault

Frost protection

mode

Raise the frost protec-tion setpoint

Lower the frost protec-tion setpoint -------------------

Frost protection modeUnit on

in hot water production mode

Heating mode

Raise the heating setpoint

Lower the heating setpoint

Go to Comfort mode, Economy mode then Programmed mode.

Heating modeUnit on

in hot water production

mode

Heating

programming

Place cursor on comfort = sun

Place cursor on economy = moon Go to following day

Weekly programming in heating mode

Unit on in hot water production mode using

programmed setpoint

Pool

Raise the setpoint Lower the setpoint -------------------

Swimming pool heatingUnit on

in hot water production mode

+ - OK

EN - 16 NA 09.159 E

EN

The unit has been reset to its factory values when four dashes appear (-- .--).

Parameter No. Word sequence Setting value Factory

setting

00 Machine type 0 = Aqualis Caleo1 = Aquaciat Caleo 1

01 Glycol content 0 = pure water1 = glycol/water mix 0

02 On/Off input on J2 terminals 3-5

0 = control via terminal - this input has no effect on control2 = input used to place unit in frost protection mode by remote control 0

03 Heating terminal units0 = Radiators/fan coil units1 = Underfloor heating system2 = (empty)

0

04 Ambient temperature compensation factor

0 = setpoint adjusted to water≠ 0 = Setpoint adjusted to air 2

06 Auxiliary units and bypassing possibility

0 = heat pump only (bypassing of heat pump possible)1 = heat pump + electric auxiliary heaters (bypassing of auxiliaries possible) 2 = heat pump + electric auxiliary heaters (bypassing of heat pump and auxiliaries possible)3 = heat pump or boiler backup (bypassing of heat pump possible)4 = heat pump or boiler backup (bypassing of heat pump and boiler possible)5 = heat pump + boiler backup (bypassing of heat pump possible)

0

07 Auxiliary units authorisation outdoor temperature From P9 to 24°C -10°C

08 Compressor confirmation 0 = compressor not allowed to run1 = compressor allowed to run 1

09 Heating operation low limit (air) -20°C to 24°C -20°C

Comfort Unit (CU) Underfloor Heating System (UHS) CU UHS

15 Water supply comfort setpoint in heating mode 20°C to P19 -- 30°C 20°C

16 Water supply economy setpoint in heating mode 20°C to P19 Empty 30°C Empty

17 Outdoor air temp at start of drift in heating mode -15°C to 45°C 17°C to 45°C 20°C 20°C

18 Outdoor air temp at end of drift in heating mode -20°C to P17-5 °C -20°C to 8°C -7°C -7°C

19 Max. setpoint at end of drift in heating mode

20°C to 60°C if P06 = 0,20°C to 65°C if P6 = 1 or 2

20°C to 70°C if P6 = 3, 4 or 520°C to 40°C 50°C 35°C

20 Stage differential 0.5°C to 5°C 2°C 2°C

21 Interstage differential 0.5°C to 10°C 2°C

22 Pool option configuration 0 = no option1 = pool management 0

23 Pool water setpoint 20°C to 35°C 28°C

24 Self-regulating frosting time 0 = No / 1 = Yes 1

25 Temperature of time-delay coil before defrosting -5°C to 0°C -2°C

Comfort Unit (CU) Underfloor Heating System (UHS)

26 Minimum water return defrost authorisation

25°C if P1 = 010°C if P1 = 1

20°C if P1 = 05°C if P1 = 1 20°C

27 Defrosting end temperature 10 to 45°C 15°C

28 Frosting time 10 to 90 min. 30 min.

29 Minimum frosting time with max ∆T > 15 0 to P28 10 min.

30 Test mode 0 = No / 1 = Yes 0

31 Frost protection mode setpoint 8°C to 15°C air setpoint (or water if P4 = 0) 10°C

32 Maximum exchanger freon temperature change for frost protection 0°C to 5°C 1°C

33 Maximum water outlet temperature change for frost protection 0°C to 1°C 0.3°C

34 Accelerator pump operation control

0 = off if boiler on1 = continuous operation

2 = economy mode; circulator off if boiler on3 = economy mode

1

36 Injection valve operation 0: injection valve closed1: normal management of injection valve via control 1

37 Coil frosting factor 0 to 2 (adjustable) 0.2°C

NA 09.159 E EN - 17

Parameter No. Word sequence Setting value Factory

setting

38Coil cleaning

by defrost if high risk of freezing

If -2°C ≤ outdoor temperature ≤ -6°CDefrost cycle authorisation:

0: freon temperature factored in1: freon temperature not factored in (more frequent defrosting)

0

39 Correction factor for ∆TD°C based on the change in the air inlet temperature (optimised frosting time) 0 to 0.5 (resolution: 0.1) 0.2

40 Water return temperature Value read

41 Water supply temperature Value read

42 Calculated water setpoint Value read

43 Corrected stage differential Value read

44 Freon temperature in outdoor coil Value read

45 Freon temperature in exchanger Value read

46 Short-cycle protection time delay Value read

47 Remaining frosting time Value read

48 Outdoor temperature Value read

49 Fault reset counter Value read

50 Pool temperature Value read

51 Discharge temperature Value read

52 Transmitter pressure Value read

54 Fault number d5.3 Value read

55 Number of compressor starts < 10,000 Value read

56 Number of compressor starts > 10,000 / 10,000 Value read

57 Compressor runtime (h) < 10,000 Value read

58 Compressor runtime > 10,000 / 10,000 Value read

60 Domestic hot water production option

0 = domestic hot water preheating1 = heating of domestic hot water tank with one cycle per day2 = heating of domestic hot water tank with two cycles per day

3 = DHW option controlled by closing of contact on J2 (3-5)0

61 Cycle 1 start time: domestic hot water 0:00 to 23:30 (adjustable) 1h30

62 Cycle 2 start time: domestic hot water Adjustable from P61 + 6 hours to 23:30 12h30

63 Maximum DHW duration with heat pump operating in heating mode. 30 min. to 2 hours (adjustable) 2h00

70 Minimum fans speed 0 to 5 V 1 V

71 Maximum fan speed 5 to 10 V 8.4 V

80 Control card version number Value read

81 Terminal version number Value read

93 Exchanger frost protection limit for water supply

Fixed if P1 = 0Adjustable between -10°C and +3°C if P1 = 1

+3°C if P1 = 00 °C if P1 = 1

94 Maximum water outlet temperature 60°C to 65.5°C (adjustable) 65.5°C

95 Compressor discharge temperature upper limit 60°C to 140°C (adjustable) 132°C

96 Low limit in heating mode (water inlet)

10°C if P1 = 05°C if P1 = 1 10°C

101 Fan control voltage reading Value read

102 HP setpoint for defrosting 10 to 30 bar 23 bar

103 Defrosting HP differential 1 to 10 bar 5 bar

104 Reference ∆T reading (optimised frosting time) Value read

105 Measured ∆T reading (optimised frosting time) Value read

107 ∆TD reading (optimised frosting time) Value read

108 Minimum outdoor temperature below which the fan voltage = P71 15 to 25°C 18°C

109Differential in relation to P108, maximum outdoor

temperature above which the fan voltage = f (outdoor temperature and water outlet)

1 to 5°C 2°C

110 Maximum low pressure before steam injection valve operation (> than this value, the valve is supplied) 3.5 bar (-0.6°C) to 7.0 bar (16.9°C) in increments of 0.1 bar 6.0 bar

(12.6°C)

EN - 18 NA 09.159 E

EN

14.3 Operating modesAdjust setting P3 as shown in the table below for your system and the desired operating mode

TU system TU + RF system (with DUO module) RF system

P03 = 0 P03 = 1

HEATING mode

The room temperature setpoint is displayed on the terminal

P18

P19

P17

Water return (°C)

Outdoor temperature (°C)

P15orP16 if economy setpoint

The maximum water return setpoint is limited to 60°C without back-up heating, 60°C with auxiliary heaters and 70°C with an auxiliary boiler

The maximum water return setpoint is limited to 40°C

FROST PROTECTION

mode

This mode is activated when the outdoor temperature drops below 10°C. Heating is maintained until the frost protection setpoint is reached.

This heating is guaranteed primarily by the heat pump (auxiliary units are also authorised)

Heating provided by auxiliaries. If no auxiliaries are used, heating is provided by the heat pump with a minimum water

return temperature of 21°C and using the economy setpoint if P1 = 0

TU = Terminal Units such as fan coil units and radiators UHS = Underfloor Heating SystemIn the case of specific applications (industrial, process) or to disable adjustment of the system based on the room temperature, adjust setting P4 to '0'. In a CU or CU+UHS configuration (P3 = 0) the setpoint displayed will therefore be a water return setpoint.Note: changing modes will cause the compressor to turn off first.

14.4 AuxiliariesSetting P6 is used to configure the type of auxiliary unit installed. Setting P6 also is used to define the type of bypass (see "Bypass via On/Off input" section).

Adjusting setting P6

P6 Auxiliary configuration Bypass type (by opening of contact on terminal block J2 - terminals 4 and 5)

0 No auxiliary heaters Heat pump turned off

1 Electric auxiliary heaters Only electric auxiliary heaters turned off

2 Electric auxiliary heaters Heat pump and electric auxiliary heaters turned off

3 Boiler auxiliary Heat pump turned off and boiler turned on (e.g. offsetting of peak days scheme in France)

4 Boiler auxiliary Heat pump and boiler turned off(e.g. turning off entire heating system by remote control)

5 Boiler auxiliary unit controlled by the microconnect control unit Heat pump turned off and boiler turned on in control stage 1 (e.g. peak-day offsetting scheme in France)

Note:Auxiliary units are not authorised: 1 - if P06 = 0

2 - if the unit is stopped by a water flow rate fault (d3)3 - if there is a water inlet sensor fault (d4.2)

Auxiliary units are authorised: 1 - 80 seconds after the compressor starts2 - if the compressor is not available (above cases excluded)

NA 09.159 E EN - 19

14-4-1 Electrical auxiliary unit P6 = 1 or 2a - Operating limits

Heat pump and auxiliaries off

Heat pump operating low limit (min. value -15°C)

Programmed auxiliary units trigger threshold

Wat

er r

etur

n te

mpe

ratu

re (

°C) Maximum temperature back to heat

pump

Heat pump onlyAuxiliaries onlyHeat pump

+Auxiliary unit

Outdoor temperature in °C

Auxiliary units may be used if the outdoor temperature is < P7 (trigger threshold).Control is carried out on interstage differential P21.Example: P21 = 2°C and water setpoint P42 = 40°C - The compressor starts at 38°C - Electric stage 1 starts at 36°C - Electric stage 2 starts at 34°C

b - Terminal display

14-4-2 Using a boiler as a backup

ForewordCorrosion of heating sourcesHeating sources, such as those made of steel, are susceptible to corrosion. Please contact your boiler manufacturer to determine whether the heating source is compatible with Microconnect control.

A few recommendations- Do not run the burner and the heat pump at the same time when the water temperature is below 40°C. If P6 = 5 and you are in doubt, adjust P7 and P9 to the same value.

- Do not short-circuit the boiler corrosion protection systems (e.g. heating circulator kept off until the burner raises the heating source temperature to over 40°C).

a - Boiler operated by its own control system P6 = 3 or 4Typical application: boiler with an advanced electronic control system.

When P6 is set to 3 or 4, the Microconnect controller only provides a 'boiler On' authorisation contact. This contact (terminal block J1 - terminals 1 and 5) remains closed once the outdoor temperature drops below the value of P9 or a fault occurs on the heat pump. The boiler burner is then controlled by the boiler's control system.

Heat pump and boiler operating ranges:

P9 = P7 P48

P40

70°C70°C

60°C

Outdoor temperature in °C

Heat pump and boiler off

Programmed auxiliary units trigger threshold

(min. value -15°C)

Wat

er r

etur

n te

mpe

ratu

re (

°C)

Heat pump off,

Auxiliary Boiler authorised

Maximum temperature back to heat pump

Heat pump only

Max. heat pump operation authorisation temperature

Time delay of 80 s during shift

Note: the boiler and heat pump are turned off if the outdoor temperature > P9 and if the water return temperature > 60°C.

Terminal display

The control setpoint and, where applicable, the electric stage indicator are displayed

Electric stage 1 on indicatorElectric stage 2 on indicator

EN - 20 NA 09.159 E

EN

Miscellaneous: • Setting P34 may be used to turn off the accelerator pump.

P34 = 0: circulator off if boiler on.Moreover, a d3 fault (water flow rate fault) must not prevent the boiler operating.Accordingly, the boiler is still authorised to come on even if this fault appears.

P34 = 1: default value - continuous circulator operation.

• Maximum water return for back-up boiler: 70°C.

• If P6 = 3 or 4 and if the outdoor temperature is less than P9.

Terminal display when the outdoor temperature is less than P9 and only the boiler is authorised.The control setpoint is displayed in all other cases.

Boiler operation authorised symbol

b - Boiler controlled by the Microconnect microprocessor P6 = 5Typical application: boiler with basic control

When P6 is set to '5', the burner and the heat pump are controlled by the Microconnect microprocessor using the water formula entered in the terminal unit (settings P15 to P19). the Microconnect terminal manages the room temperature.

Heat pump and boiler operating ranges

Outdoor temperature in °C

Heat pump and auxiliaries off

Auxiliary boiler only

Heat pump operating low limit (min. value -15°C)

Programmed auxiliary units trigger threshold

Wat

er r

etur

n te

mpe

ratu

re (

°C)

Heat pump+

Boiler authorised

Maximum temperature back to heat pump

Heat pump only

Max. heat pump operation authorisation temperature

Heat pump off, boiler authorised

Heat pump and boiler off

The control setpoint and, where applicable, the boiler operation authorisation symbol are displayed

Boiler operation authorised symbol

14.5 On/Off control inputs 14-5-1 Turning off or 'bypassing' your heat pump or the auxiliaries via remote control

To shut down the heat pump and/or terminals by remote control, remove the jumper on connector J2 terminals 4 and 5 from the Microconnect board. Connect your contact between these two terminals.

Contact quality: compatible with a 10 mA current at 24 V.

1: contact closed: normal operation

2: contact open: € symbol appears and bypass as indicated below.

HEATING MODE: the bypass depends on setting P6 (see the “Auxiliaries” section above).

FROST PROTECTION MODE: no bypass.

14-5-2 Turning on the frost protection via remote control: P2 = 2

To place your system in frost protection mode by remote control, adjust setting P2 to '2'. Connect a contact to connector J2 terminals 3 and 5 on your unit's Microconnect board.

Contact quality: compatible with a 10 mA current at 24 V.

1: contact closed: unit operates at the mode selected with the dial

2 : contact open: system forced to frost protection mode and the following is displayed:

NA 09.159 E EN - 21

TERMINAL BLOCK J31-2 Discharge sensor3-4 HP1 + QG1 + QC01 + Fan thermal cut-out + compressor internal protection

TERMINAL BLOCK J71-2 Water inlet sensor (water return)

TERMINAL BLOCK J61-2 Plate exchanger freon sensor

TERMINAL BLOCK J81-2 Water outlet sensor (water supply)TERMINAL BLOCK J91-2 Outdoor air sensorTERMINAL BLOCK J101-2 Coil freon sensorTERMINAL BLOCK J111 to 4 Daughter board

TERMINAL BLOCK J5Pressure sensor

TERMINAL BLOCK J16Program loading

TERMINAL BLOCK J12 Control board supply from PSU board

(neutral and phase)

14.6 Control boardCPU board descriptionLocations of connector and terminal blocks

5 4 3 2 1 5 4 3 2 1

Provide a good-quality contact compatible with a current of

10 mA at 12 V (Nos. 5, 4 and 3)Flashing green LED- Terminal/control board communication

Flashing red LED- Temporary fault

Steady red LED- Permanent fault

¤Green LED

¤Red LED

S1

10 kΩ discharge sensor position

50 kΩ discharge sensor position

12

12

34

TERMINAL BLOCK J41-2 Water flow switch

The potential-free contacts operate correctly if:Outputs (): below max 230V-5 A AC1Inputs (): below min 24V-10 mA

max 230V-5 A

EARTH

N Ph

3-4 OutputsAlarm signal (220V)

1-2 Valve pressure balancing outputs

4321

4

3

2

1

4 Cycle reversing valve control

3 Compressor switch control

2 Pump switch control

1

Fan contactor control

TERMINAL BLOCK J21-2 Control terminal (12V)3 Unoccupied mode control4 Bypass control5 Shared

TERMINAL BLOCK

J14

TERMINAL BLOCK

J15

TERMINAL BLOCK

J13

123

TERMINAL BLOCK J11 Auxiliary output 12 Auxiliary output 23 Injection valve outlet4-5 230V phase inputs

EN - 22 NA 09.159 E

EN

- Compressor stop for at least 5 seconds and

- Thumbwheel in off position.

If the machine is stopped with a water inlet temperature above 65.5°C, if an HP fault appears, the balancing valve is supplied. If the HP fault disappears, the supply to the valve is cut.

Max. supply time for the valves:To prevent a permanent supply to the coils (if the pressure sensor is defective and the unit is off), the maximum time for the valve to run for evacuation is set at 2 hours.

14.8 Functions14.8.1 Automatic restart

In the event of a power cut, the unit automatically resumes the mode it was in after a period of 3 minutes.

14.8.2 Short-cycle protectionThe unit is allowed to start back up if the compressor is turned off for at least 3 minutes.

14.8.3 Automated self-regulating controlThis function adjusts the compressor running time or the stage differential to best adapt the operation of the unit to the type of installation.

14.9 Options14.9.1 Swimming pool control

This option allows you to heat your swimming pool.

Kit contents:

- Pool kit installation instructions (with adjustment values for settings and an electrical wiring diagram).

- Three-way valve

- 10 k sensor

- A table listing the recommended types of exchanger to install (Exchanger to be provided by the client )

14.9.2 Domestic hot water heatingThis option allows you to produce domestic hot water with a hot-water tank with coil.

Kit contents:

- Specific installation instructions (with adjustment values for settings).

- One or two tanks.

14.7 Components14-7-1 Outdoor fan

Heating mode

1 - Fan starts at high speed max 5 seconds before the compressor starts.

14-7-2 Reversing valveNot supplied during hot water production or when the unit is off. Activates only during the defrost cycle.

14-7-3 Circulator

Automatic seizure protection

To prevent the circulator seizing while it is off, the control system turns it on for one minute once every week.

Circulator

Operates continuously in most cases.

Turned off in the following three cases:

- When the unit is off - In frost protection mode when the outdoor temperature is above +10°C

- In heating mode with the boiler if P34 is set to '0'

In all three cases, the circulator can be started back up to protect the exchanger from frost. It will start up if the water supply temperature is below 30°C.

14-7-4 Steam injection on/off valve

In order to limit the discharge temperatures, an On/Off solenoid valve is

Controlled by dry contact J1 (3-5)

Contact open = Valve not supplied = valve closed

Contact close = Valve supplied = Valve open.

- At start-up

Valve closed for 45s

" Pump Down" operation to protect the compressor

- When off Valve closed 45s before the compressor stops to protect the compressor

- In hot water production mode(heating, pool, frost protection or DHW modes):Valve openIf the LP exceeds P110 the valve closes and if it drops below P110-1, the valve opens.

- During defrosting:valve closed

14-7-5 Pressure balancing on/off valveControlled by dry contact J15 (1-2)

Contact open = Valve not supplied = valve closed

When the unit is running, the pressure balancing valve is supplied at the start of defrosting before the compressor is restarted.

If the Aquaciat is stopped to enable the machine to be evacuated, and if the pressure read by the HP sensor < 1 bar, → the valve is supplied.

Condition for supplying the balancing valve when the system is evacuated (valve open):- Pressure read by the HP sensor < 1 bar and

15.1 Temporary and permanent

There are two types of fault: temporary and permanent.

- Temporary faults cause the unit to enter fault-tolerant mode and the fault type flashes on the terminal LCD. No memorisation of temporary fault or fault relay stuck. (excluding terminal link fault)

- Permanent faults shut down the unit and, depending on the settings, turn on the auxiliaries. The fault type appears on the terminal LCD.

Faults are stored in the memory during power cuts and the fault relay is stuck in a particular position. Fault management remains on during test mode.

15 FAULTS

NA 09.159 E EN - 23

15.2 TablesFault No. Fault description Fault type Possible causes of fault

No display Terminal link Temporary Cut terminal wire; fault on Microconnect control board but heat pump running (operating mode is the last mode displayed)

d1.2High pressure switch

or compressor motor safety devices or fan

TemporaryHP cut off at 32 bar

or compressor circuit breaker or internal protection trippedor fan circuit breaker or internal protection tripped

Permanent Two intermediate d1.2 during the same defrost cycle

d1.2d

High pressure switch or compressor motor safety devices

or fan during the defrosting phase

TemporaryHP cut off at 32 bar

or compressor circuit breaker or internal protection trippedor fan circuit breaker or internal protection tripped

Permanent Two intermediate d1.2d faults

d1.3 Pressure transmitter Temporary Outdoor temperature sensor opened or short-circuited

d3 Differential pressure switch opened Temporary then permanent Low flow rate in water circuit caused by a clogged filter or air in the circuit, or the accelerator pump is either not working or power is not supplied

d4.1 Outdoor temperature sensor

Temporary

Outdoor temperature sensor opened or short-circuited

d4.2 Water inlet temperature sensor Exchanger water inlet temperature sensor opened or short-circuited

d4.3 Water outlet temperature sensor Water outlet temperature sensor on exchanger opened or short-circuited

d4.4 Coil freon temperature sensor Coil freon inlet temperature sensor opened or short-circuited

d4.5 Exchanger freon temperature sensor Exchanger freon inlet temperature sensor opened or short-circuited

d4.6 Terminal sensor Terminal sensor opened or short-circuited

d4.7 Pool temperature sensor Pool temperature sensor opened or short-circuited

d4.8 Compressor discharge freon tempera-ture sensor Permanent Sensor opened or short-circuited

d5.1

Unit outside of usage limits

TemporaryIf condenser water return ≤ P96

or if Outdoor temperature ≤ P09 and if P6 = 0or outside limits of pool operation

d5.2 Permanent or if Water return temperature (P40) < P26 prohibiting defrost

d5.3Temporary Discharge temperature (P51) > P95 number of faults < 5 in 24 hours

Permanent Discharge temperature (P51) > P95 number of faults ≥ 5 in 24 hours

d5.4 Low pressure protectionTemporary LP < 0.7 bar if P00 = 0 or 0.9 bar if P00 = 1 for 30 seconds

Permanent Three intermediate d5.4 faults in 24 hours

d6 Exchanger frost protection set to water Permanent Difference between exchanger freon and water supply temperatures in defrosting mode

d8 Exchanger frost protection set to difference Permanent Difference between exchanger freon and water supply temperatures in

defrosting mode

d9.1 Terminal fault Temporary Terminal fault

d9.2 EEPROM fault Temporary Control board EEPROM fault

15.3 Acknowledging faults

After diagnosing and eliminating the cause of a fault, acknowledge it by pressing OK on the terminal for 3 seconds with the dial turned to Off.

15.4 Sensor valuesNTC type sensors 50 kΩ at 25 °CNTC type sensors 10 kΩ at 25 °C

Temperature(°C) Sensor resistance

(in kΩ)

Temperature(°C) Sensor resistance

(in kΩ)

Temperature (in °C)

Sensor resistance

(in kΩ)

-40 345.3 15 15.58 7 1.724

-35 247.6 20 12.37 75 1.456

-30 179.6 25 10.00 80 1.236

-25 131.8 30 7.958 85 1.053

-20 97.78 35 6.446 90 0.901

-15 73.27 40 5.252 95 0.774

-10 55.44 45 4.305 100 0.667

-5 42.33 50 3.548 105 0.577

0 32.60 55 2.940 110 0.501

5 25.29 60 2.449 115 0.436

10 19.77 60 2.050 120 0.381

Temperature (°C)

Discharge sensor (in kΩ)

-10 /

-5 /

0 162250

5 126977

10 99517

15 78570

20 62468

25 50000

30 40280

35 32650

40 26624

45 21834

50 18005

EN - 24 NA 09.159 E

EN

15.5 Compressor operating limits

16.1 Hydraulic module schematic

HOT WATER PRODUCTIONMinimum water return temperature for warm-up: +5°C

Minimum pure water return temperature during operation:

+20°C (underfloor heating system)

+25°C (CU or radiator)

Maximum water inlet temperature: +60°C

Outdoor temperature

Wat

er o

utle

t tem

pera

ture

(°C

)

Operating zone

P94 (adjustable)

16. CHARACTERISTICS

Brazed plate heat exchanger

Manual air bleed valve

Accelerator pump

Temperature sensors

Differential pressure switch

Screen filterIN

OUT

16.2 Available pressure curves (pure water)The available pressure curves are given for pure water.

Subtract5kPafromtheavailablepressuresinthecaseofsystemsusing40%monopropyleneglycol.

03 4 5 6 7 8 9 10 11 12 13 14

100

50

200

150

TDC 150ZTDC 120Z

TDC 100Z

TDC 80Z

Qv water (m3/h)

Ava

ilabl

e st

atic

pre

ssur

e (k

Pa)

NA 09.159 E EN - 25

16.3 Technical specifications

Model TDC 80Z TDC 100Z TDC 120Z TDC 150Z

Cooling capacity kW 24.7 34.5 40.6 47.1

Power input kW 6.7 9.0 10.2 12.2

COP 3.69 3.83 3.98 3.86

Heating capacity kW 25.1 35.5 35.5 48.8

Power input kW 8.0 10.7 10.7 14.6

COP 3.14 3.31 3.31 3.34

Lw / Lp (High Performance version) dB(A) 77.0 77.0 77.0 77.2

Compressor Hermetic SCROLL (2900 rpm)

Start-up mode Direct in line in series

Quantity 1

Refrigerant oil type POE

Oil capacity l 4.00 4.00 4.14 4.14

No. of refrigerant circuits 1

Refrigerant R407C

Refrigerant content kg 10.0 11.5 18.0 18.0

Electrical power supply ph/Hz/V Three-phase AC - 50 Hz - 400 V (+6%/-10%) + Earth

Machine protection rating IP44

Electrical box protection rating IP22

Control circuit voltage ph/Hz/V Single-phase AC - 50 Hz - 400 V (+6%/-10%) - transformer fitted

Breaking capacity kA 15

Power control % 0.100

Condenser Brazed-plate heat exchanger(s)

Water capacity I 3.66 5.00 5.78 6.67

Hot water outlet temp. (min./max.) °C 26/65°C

Minimum water flow rate m3/h 3.1 4.0 5.1 5.7

Maximum water flow rate m3/h 7.2 8.5 12.2 13.0

Water connections ∅ 1 1/2" Male

Minimum system diameter ∅ DN 50

Max. pressure, water end bar 4 bar

Air-cooled evaporator Finned heat exchanger(s)

Fan diameter mm 800

Rotation speed in High Performance mode rpm 745

Qty x motor power in High Performance mode kW 1 x 0.86

Air flow, High Performance version m3/h 13700 12750 12750 12750

Minimum system water volume l 190 245 276 333

Expansion vessel l 18

Max. system capacity in litres max. 65°C water 450

Pure water max. 90°C water 310

Max. system capacity in litres max. 65°C water 275

glycol/water mix 40% max. 90°C water 210

Standard pump no. 44 45

Max. pump power kW 0.55 0.75

Height (excluding mounts) mm 1423

Length (standard version) mm 1995

Depth mm 1055

Weight (empty) kg 398 465 482 497

Weight (in operation) kg 417 483 503 519

Maximum storage temperature °C + 50

HEATING capacities at outlet of HIGH PERFORMANCE units based on:Hotwateroutletat+35°Candoutdoorairat+7°CDB,86%RHHotwateroutletat+45°Candoutdoorairat+7°CDB,86%RH Gross COP values (excluding pump) Overall sound power level (Lw) overall sound pressure level (Lp) measured at 10 metres in a free field, as per ISO 3744 System capacity depending on expansion vessel fitted on unit

EN - 26 NA 09.159 E

EN

17. TEST MODE

This mode allows you to test the system by reducing the time the safety devices are activated.

Display setting P30 (see the “Accessing the settings” section”)Mode activated when P30 = 1 (cancels after one hour - P30 reverts to 0).

In this case:

- P7 and P9 are cancelled.

- The compressor short-cycle protection is lowered to 60 seconds.

- The 30-minute waiting time following an HP fault (or coil freon sensor fault) is reduced to 30 seconds.

- The auxiliary trigger time delay is reduced from 80 seconds to 5 seconds.

- The frosting time delay is in seconds.

- The time delay for restarting the compressor after a d1.1 fault is reduced from 2 minutes to 30 seconds.

Hourglass symbol appears

18.1 Aquaciat Caleo operating readings

Date/Time

Compressor

Suction pressure bar

Inlet temperature °C

Condensing pressure bar

Condensing temperature °C

Air coil

Gas inlet temperature °C

Gas outlet temperature °C

Air inlet temperature °C

Air outlet temperature °C

Main circuit plate heat exchanger

Water inlet temperature °C

Water outlet temperature °C

Gas inlet temperature °C

Fluid outlet temperature °C

Injection circuit plate heat exchanger

Inlet temperature °C

Outlet temperature °C

Rated voltage V

Terminal voltage V

Compressor input current A

Fan motor input current A

Frost protection temperature (plate heat exchanger water side frost protection) °C

Mechanical inspection: tubes, fastenings

Electrical connection tightness check

Outdoor coil cleaning

Control check

Differential water pressure switch

State of liquid sight glass and sealing test

18. CARE AND MAINTENANCE

INDICATOR 1 (customer level)

INDICATOR 0 (fitter level)

NA 09.159 E EN - 27

18.2 Unit maintenance and servicing18.2.1 Safety instructions

Perform operating inspections in accordance with national regulations.

Do not climb on the machine; use a platform to work at the necessary height.

Do not climb on the copper refrigerant pipes.

All work on the unit's electrical or refrigerant systems must be performed by a qualified authorised technician.

Any opening or closing of a shut-off valve must be performed with the unit off.

The liquid valve (located just before the dryer) must be opened completely when there is refrigerant in the circuit.

Do not work on any electrical components without first turning off the main cutoff switch in the electrical box.

Although the compressor is turned off, the power circuit remains energised until the unit disconnect switch is opened.

Furthermore, there may still be live elements: this is due to external controllers connected to the orange disconnect terminals on the main terminal.

Unplug the removable portion of these terminals before commencing any work.

The surfaces of the compressor and pipes may reach temperatures of over 100°C and cause burns if touched. Likewise, the surfaces of the compressor may in some cases drop to freezing temperatures which can cause frostbite.

It is therefore important to take special care when conducting maintenance work.

Technicians working on the unit must wear the necessary safety gear (e.g. gloves, eye protection, insulating clothing, safety shoes).

Noise

It is also recommended that persons working near significant sources of noise wear ear protection.

This ear protection should not in any way impede the wearing of other protective equipment.

Oil

Refrigeration oils are virtually harmless provided the following precautions for use are followed:

- Avoid unnecessary handling of components lubricated with oil. Use protective creams.

- Oils are flammable and must be stored and handled with care. Disposable rags or cloths used in cleaning must be kept away from open flames and disposed of in the appropriate manner.

- Containers must be stored with their caps on. Avoid using oil from an opened container stored under poor conditions.

Refrigerants - generalAlways remember that refrigeration systems contain pressurised liquids and vapours.

All necessary precautions must be taken when opening the system partially.

A certain amount of refrigerant will be released in the air when the primary refrigeration circuit is partially opened.

It is essential to keep the amount of lost refrigerant as low as possible by pumping the charge and isolating it in another part of the system.

The refrigerant and lubricating oil, and the low-temperature liquid refrigerant in particular, may cause inflammatory lesions similar to burns if they come into contact with the skin or eyes.

Always wear protective eyewear, gloves and other protective equipment when opening pipes or tanks liable to contain liquids.

Store unused refrigerant in the appropriate containers and limit the amounts stored in mechanical rooms.

Cylinders and tanks of refrigerant must be handled with care and signs warning users of the related poisoning, fire and explosion hazards must be posted in conspicuous locations.

Refrigerant that reaches the end of its life must be collected and recycled in accordance with applicable regulations.

Halocarbon and hydrofluorocarbon refrigerantsAlthough non-toxic, vapours from halocarbon and hydrofluorocarbon refrigerants remain hazardous because they are heavier than air and can force the latter out of mechanical rooms.

If refrigerant is accidentally released, ventilate the room with fans. Exposure levels in workplaces must be kept to a practical minimum and must never exceed the recognised limit of 1000 ppm for an 8-hour working day and a 40-hour working week.

Although halocarbon and hydrofluorocarbon refrigerants are not flammable, keep them away from open flames (e.g. cigarettes, etc.), as temperatures of over 300°C cause their vapours to break down and form phosgene, hydrogen fluoride, hydrogen chloride and other toxic compounds. These compounds may produce severe physiological consequences if accidentally inhaled or swallowed.

18.2.2 Readings and checks

- Note down the operating readings and perform the checks indicated in the table on the previous page at least twice a year and each time a unit is started for seasonal use.

Weekly checksWith the unit running at full capacity, check the following values:

- Check the entire system for traces of water or oil under or around the unit and for any unusual noises.

- LP compressor suction pressure,

- HP compressor discharge pressure,

- The water inlet and outlet temperatures in the exchangers,

- The charge via the liquid sight glass and the condition of the charge using the coloured indicator on the sight glass,

EN - 28 NA 09.159 E

EN

- The oil level and its appearance. If the colour changes, check the quality.

- Keep the unit clean.

- To avoid accidents and ensure proper ventilation of the condenser, keep the unit and the space around it clean and free of clutter.

- Remove dust, fibres, leaves and other debris from the coil with a soft brush or a vacuum cleaner. The coil may also be cleaned by spraying it with water:

Low pressure

In the direction of the fins

In the opposite direction to the air

Also check whether the safety devices operate correctly.

Monthly checksCheck all the values listed in the table on the previous page.

Perform a corrosion check on all the metal parts. (Frame, casing, exchangers, electrical boxes etc.)

Make sure that the insulating foam is neither detached nor torn.

Check the coolants for any impurities which could cause wear or corrosion in the exchanger.

Check the circuits for leaks.

Check whether the safety devices and the expansion valve(s) operate correctly.

Annual checksSee the monthly checks listed above.

Test the oil for contaminants: if acid, water or metal particles are detected in the oil, replace it in the corresponding circuit and the dryer.

If all the oil must be emptied, replace it solely with new oil of the same grade as the original oil and stored in a hermetically sealed container until its time of use. (Type of oil: see section 10).

Check the filter dryer for fouling (measure the difference in the temperature of the pipes at the dryer inlet and outlet).

Check the electrical connections to ensure they are tight and in good condition.

Check the motor insulation.

Check the condition of the contacts and the current at full load on all three phases.

Check the electrical box for water seepage.

Clean the water filter and vent air from the circuit.

Clean the exchangers and check the pressure drop in each.

Check the operation of the water flow switch.

Check the water quality or condition of the coolant.

Check the antifreeze concentration (MEG or PEG).

NOTE: the frequency of cleaning is provided for guidance only and should be adapted depending on the conditions.

18.2.3 Disassembling the fan

The fan is anchored to the top by four screws.

18.2.4 Disassembling the compressorThe compressor is fastened to the platform by four dia. 8 mm screws.

Warning: Do not tighten the compressor screws to a torque greater than 13 N·m ± 1 N·m.

If you do not have a torque wrench, tighten them until they are snug then tighten a further ¾ turn.

IMPORTANT:

To ensure your unit runs smoothly and to obtain service under the warranty, take out a maintenance contract with your installer or an approved maintenance company.

19 ECODESIGN

In accordance with Regulation (EC) No. 842/2006 on certain greenhouse gases.

R410A, R134a and R407C are refrigerant gases with the following environmental impacts:

1 No impact on the ozone layer. They have an ODP (Ozone Depletion Potential) of 0.

2 Impact on the greenhouse effect: Global Warming Potential (GWP) of each gas. - R410A----------GWP=2088 - R407C----------GWP=1800 - R134a-----------GWP=1430

- Users must have systems containing refrigerant periodically checked for leaks by qualified personnel. The frequency of checks depends on the refrigerant charge:

- Every 12 months for units containing 3 to 30 kg of refrigerant.(2Kg in France, edict and decree of 7 May 2007)

- Every 6 months for units containing 30 to 300 kg of refrigerant.

- Every 3 months for units containing more than 300 kg of refrigerant.(Implementation of leak detection system)

- Users of any system containing over 3 kg of refrigerant (2 kg in France) are required to keep a log of the quantities and types of refrigerants used, added or recovered, and to include the dates and results of sealing tests, as well as the name of the technician and the technician's company. Identification of technician & of company concerned.

- A leak test must be carried out one month after any leak repairs.

- System users are responsible for collecting used refrigerant and having it recycled, regenerated or destroyed.

NA 09.159 E EN - 29

Initial advice

- Faults detected by the safety devices are not necessarily caused by a sudden change in the magnitude being monitored.

- Taken regularly, readings should make it possible to anticipate future trips.

- Perform the checks listed in the table (below) if you notice that a measurement deviates from its normal value and gradually moves closer to the safety limit.

IMPORTANT:First and foremost, bear in mind that most faults that occur on the units have simple causes that are often the same for all. Look for these causes first.

There are three such causes in particular: Thefoulingleveloftheexchangers Problemswiththefluidcircuits Failuresofelectriccomponentssuchastherelaycoilortheelectricalvalve,etc.

Faults Probable causes Instructions

Suction pressure too low

Expansion valve

Incorrect ventilation

Lack of refrigerant.

Check the operation of the expansion valve.

Check the direction of rotation of the fan.Check the values of P00 (it should be '1') and P71 (it should be 8.4 V).Trace the leak(s) and top up the charge

Excessive discharge pressure

Condenser dirty.

Operation outside limits.

Refrigerant overcharge.

Insufficient water flow rate

Clean the plate heat exchanger to improve itsperformance

Wait for restart.

Check and adjust the charge.

Check the opening of the water circuit valves and check the pumpClean the water circuit filter

Insufficient oil. Oil not topped up after servicing. Top up with oil.

Water flow fault Water flow is either stopped or below the minimum rate.Check the opening of the water circuit valves and check the pumpClean the water circuit filter

Motor winding fault.

Operation outside limits (excessive air inlet temperature).

Overload protection disrupted or defective.

Insufficient or excessive power supply voltage.No phases or phases reversed.

Wait for restart.

Adjust or replace the overload protection.

Check the electrical wiring; if need be, contact yourelectricity supplier

Discharge temperature insufficient and close to

condensation temperatureCompressor draws in too much liquid. Check the pressure-reducing valve.

20 TROUBLESHOOTING OPERATING PROBLEMS

EN - 30 NA 09.159 E

EN

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