CLIVET WSAT-2 Installation And Use Manual

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Installation and Use Manual

WSAT-2

302-323-404

464-524-564-614

AIR COOLED CHILLER WITH SCROLL COMPRESSORS (WITH PROPELLER FANS)

M91P44E5-05

(R-407C / R-22)

- CONTENTS -

GENERAL INFORMATION

GENERAL WARNINGS ............................................................................... 2

CORRECTION FACTORS ...........................................................................2

OPERATION LIMITS AND USE OF THE EXCHANGERS.......................... 2

GENERAL SPECIFICATIONS .....................................................................3

OPERATING LIMITS .................................................................................... 5

SETTING THE CUT-OUT DEVICES AND CONTROLS ............................. 5

SOUND LEVELS ..........................................................................................6

INTENDED USE........................................................................................... 6

ADDITIONAL SAFETY PRECAUTIONS...................................................... 6

REGULATIONS AND CERTIFICATIONS

UNI EN ISO 9001 CERTIFICATION ............................................................7

CE MARK ..................................................................................................... 7

EUROVENT CERTIFICATION ..................................................................... 7

RECEPTION/POSITIONING

INSPECTION UPON RECEPTION .............................................................. 8

STORAGE ....................................................................................................8

HANDLING USING A FORK LIFT OR SIMILAR ......................................... 8

HOISTING USING A CRANE OR SIMILAR................................................. 8

REMOVING THE PACKING ...................................................................... 10

FUNCTIONAL CLEARANCES ...................................................................10

INSTALLATION OF ANTIVIBRATION MOUNTS ......................................10

DIMENSIONS .............................................................................................11

WEIGHT DISTRIBUTION ...........................................................................12

POSITIONING ............................................................................................12

RESIDUAL RISKS

SAFETY INSTRUCTIONS.......................................................................... 13

DEFINITION OF DANGER AREA.............................................................. 13

SAFETY PRESCRIPTIONS ....................................................................... 13

WARNING!.................................................................................................. 13

DANGER!.................................................................................................... 14

PROHIBITIONS ..........................................................................................14

REFRIGERANT SAFETY CHARTS........................................................... 14

DECOMMISSIONING OF THE UNIT

DISCONNECTING THE UNIT .................................................................... 18

DISMANTLING AND DISPOSAL ............................................................... 18

CONTROL

MAIN CONTROL MODULE KE YPAD........................................................ 28

MEANING OF THE BUTTONS ..................................................................28

UNIT ON/OFF............................................................................................. 28

ALARM DISPLAY .......................................................................................28

ALARM RESET ..........................................................................................28

ALARMS ..................................................................................................... 29

ALARM LOG............................................................................................... 29

SELECTING THE OPERATING MODE..................................................... 30

SETTING THE WORKING SET POINT..................................................... 31

SETTING THE ANTIFREEZE SET POINT ................................................ 31

SETTING THE SECOND SET POINT FOR HEATING AND COOLING...32

SETTING THE MAINTENANCE SET POINT ............................................33

SETTING THE CLOCK .............................................................................. 34

SWITCHING ON AND OFF FROM TIME BANDS..................................... 35

CHANGING THE SET POINT FROM TIME BANDS ................................. 35

COUNTER DISPLAY.................................................................................. 37

LAYOUT OF THE MAIN MODULE ............................................................ 38

READING THE OPERATING STATUS .....................................................39

DIGITAL INPUTS ....................................................................................... 40

DIGITAL OUTPUTS ................................................................................... 40

DEMAND LIMIT .......................................................................................... 41

ANTIFREEZE THERMOREGULATOR...................................................... 41

ANTIFREEZE PRE-ALARM THERMOREGULATOR ............................... 42

HIGH PRESSURE ALARM PREVENTION ............................................... 42

FLUID THERMOREGULATOR .................................................................. 42

FLOW ALARM MANAGEMENT .................................................................42

CIRCULATING PUMP MANAGEMENT..................................................... 42

COIL FAN CONTROLLER ......................................................................... 42

COMPRESSOR ROTATION ......................................................................42

CONNECTING THE UNIT TO SUPERVISORY SYSTEMS ......................43

COMMUNICATION PROTOCOL ............................................................... 45

ROUTINE MAINTENANCE

GENERAL................................................................................................... 50

ROUTINE MAINTENANCE ........................................................................50

STRUCTURE.............................................................................................. 50

ELECTRICAL SYSTEM .............................................................................. 50

WATER SYSTEM .......................................................................................50

EXCHANGE COIL ......................................................................................50

WATER EXCHANGER ............................................................................... 50

REFRIGERANTS........................................................................................ 50

TROUBLESHOOTING

GENERAL................................................................................................... 53

FLOW ALARM ............................................................................................53

HIGH PRESSURE ALARM ........................................................................ 53

LOW PRESSURE ALARM ......................................................................... 53

ANTIFREEZE ALARM ................................................................................53

COMPRESSOR THERMAL OVERLOAD ALARM..................................... 53

FAN THERMAL OVERLOAD A LARM........................................................ 53

THE UNIT DOES NOT START .................................................................. 53

THE UNIT IS NOISY................................................................................... 54

WATER/AERAULIC CONNECTIONS

GENERAL................................................................................................... 19

EVAPORATOR PRESSURE DROPS (WATER SIDE) ............................. 20

EVAPORATOR ANTIFREEZE SOLUTIONS ............................................. 20

PUMP PERFORMANCE RELATED TO THE EFFECTIVE PLANT HEAD20

WATER FLOW LIMITS .............................................................................. 21

ELECTRICAL CONNECTIONS

GENERAL................................................................................................... 22

PRELIMINARY OPERATIONS .................................................................. 22

CONNECTING THE MACHINE TO THE MAINS POWER SUPPLY ... 22

FUNCTIONAL CONNECTIONS ................................................................. 22

ENABLING THE SECOND SET POINT FROM DIGITAL INPUT ............. 23

DEMAND LIMIT .......................................................................................... 23

ELECTRICAL DATA ................................................................................... 23

START-UP

GENERAL................................................................................................... 25

PRELIMINARY CHECKS ........................................................................... 25

PRELIMINARY CHECKS: ELECTRICAL SYSTEM .................................. 25

PRELIMINARY CHECKS: REFRIGERANT CIRCUIT ...............................25

PRELIMINARY CHECKS: WATER SYSTEM ............................................ 26

CHECKS ON SAFETY DEVICES, WATER SIDE (DIFFERENTIAL

PRESSURE SWITCH / FLOW SWITCH)............................................. 26

START-UP .................................................................................................. 26

ELECTRICAL CHECKS ............................................................................. 27

REFRIGERANT CIRCUIT CHECKS ..........................................................27

WATER SYSTEM CHECKS ....................................................................... 27

All technical specifications and images presented in this manual are not binding and subject to c hange without notice. Forbidden any reproduction.

F1 = Cooling capacity correction factors FK1 = Compressors' input power correction factors

GENERAL WARNINGS

This manual has been designed to enable the unit to be installed, started up and maintained correctly, making it essential to observe the following points:

- these instructions should be read carefully;

- the unit must be installed, tested and maintained by expert personal who meet the relevant legal requirements (Italian law No. 46 of 5/3/1990).

- The manufacturer declines all liability for any electrical and/or mechanical changes to the unit, which also invalid its guarantee. Any operations whatsoever that have not been expressly authorised and do not respect the information in this manual shall invalidate the guarantee.

- Observe the local safety regulations in force when installing the unit.

- Make sure the power supply conforms to the data on the unit’s rating plate, located inside the door of the main electrical panel.

- This manual and the unit’s wiring diagram should be carefully stored so that they are readily available to the operator when required.

- The packaging material (plastic bags, polystyrene foam, nails, etc.) is potentially dangerous and should therefore be kept away from children and recycled in compliance with the local regulations in force.

- The unit must only be used for the specific purpose it was designed, as described in the paragraph GENERAL TECHNICAL SPECIFICATIONS Any use other than that specified does not imply any commitment or constraint by the manufacturer in any way whatsoever.

- Switch off the unit in the event of faults or poor operation.

- Only have repairs carried out by a service centre authorised by the manufacturer, and insist on the use of original spare parts only. Failure to comply with the above may compromise the safety of the unit.

The manufacturer declines all liability for any damage that may be caused whether directly or indirectly to persons or things if these instructions are not heeded.

CORRECTION FACTORS

The performance data described in the general technical specifications is based on an evaporator fouling factor of 0.44x10-4 m2 x°C/ W and perfectly clean finned coils. For different value fouling factors, the performance data must be multiplied by the following correction coefficients.

OPERATION LIMITS AND USE OF THE EXCHANGERS

- GENERAL INFORMATION-

General Information

CORRECTION FACTORS

°C / W

F1 FK1

0.44 x 10-4

1 1

0.88 x 10-4

0.97 0.99

1.76 x 10-4

0.94 0.98

Evaporator

DPr DPw Dteo Dtei

[kPa] [kPa] [°C]

S-B S B (*)

CLIVET C

3450 2500 6 -8 22

PED CE

3450 3450 6 -8 22

UDT U

- - 6 -8 22

[°C]

DPr = Maximum operating pressure at refrigerant side DPw = Maximum operating pressure at water side DTeo = Minimum water temperature at evaporator outlet DTei = Maximum water temperature at evaporator inlet DT = inlet / outlet temperature differential S = Standard B = Brine (*) = Limit for 2 capacity steps unit

GENERAL SPECIFICATIONS

1. Data refer to the following conditions:

- Evaporator water = 12/7°C

- Ambient temperature = 35°C

Version S / Configuration ST

General Information

SIZE

302 323 404 464 524 564 614

Cooling

Cooling capacity (1) [kW] 81.4 93.5 101.5 119.1 134.3 144.0 159.5

Compr.input power (1) [kW] 26.3 28.6 33.1 37.3 42.0 46.7 54.5

Total input power (1) [kW] 30.2 32.5 37.1 43.0 47.7 52.4 60.2

COMPRESSORS

Compressors type scroll scroll scroll scroll scroll scroll scroll

Nr of compressors 2 3 4 4 4 4 4 Capacity control steps (ST) 2 3 4 4 4 4 4 Oil charge (C1) [l] 4.1 6.6 3.3 3.3 3.3 3.3 4.1

Oil charge (C2) [l] 4.1 3.3 3.3 3.3 3.3 3.3 4.1

Oil charge (C3) [l] 0 3.3 3.3 3.3 3.3 6.6 4.1

Oil charge (C4) [l] 0 0 3.3 3.3 3.3 6.6 4.1

Oil type (*)

Copeland

3MA (32 cSt)

Maneurop

160SZ

Polyolester

ISO32

Maneurop

160SZ

Polyolester

ISO32

Maneurop

160SZ

Polyolester

ISO32

Maneurop

160SZ

Polyolester

ISO32

Maneurop

160SZ

Polyolester

ISO32

Copeland

3MA (32 cSt)

Refrigerant charge (C1) [kg] 14.0 14.0 8.5 8.5 10.5 10.5 11.5

Refrigerant charge (C2) [kg] 14.0 8.5 8.5 8.5 10.5 10.5 11.5

Refrigerant charge (C3) [kg] 0 8.5 8.5 10.5 10.5 11.5 11.5

Refrigerant charge (C4) [kg] 0 0 8.5 10.5 10.5 11.5 11.5

Refrigerant circuits 2 2 2 2 2 2 2

EVAPORATORS

Evaporator type (2) PHE PHE PHE PHE PHE PHE PHE

Evaporator number [l/s] 1 1 1 1 1 1 1

Water flow [l/s] 3.9 4.5 4.8 5.7 6.4 6.9 7.6

Pressure drop [kPa] 29.7 23.8 27.7 27.6 34.6 30.9 37.6

Pump available head [kPa] 130 115 100 120 105 120 110

Water volume [l] 5.9 7.8 7.8 9.4 9.4 11.0 11.0

Outdoor Unit Fans

Evaporator type (3) AX AX AX AX AX AX AX Evaporator number 2 2 2 3 3 3 3 Fan diametre [mm] 800 800 800 800 800 800 800

RPM [rpm] 870 870 870 870 870 870 870

Standard air flow [l/s] 9150 11650 11650 16650 16650 16650 16100

Single motor input [kW] 2.0 2.0 2.0 2.0 2.0 2.0 2.0

CONNECTIONS

Water connection ["] 2 " 1/2 2 " 1/2 2 " 1/2 2 " 1/2 2 " 1/2 2 " 1/2 2 " 1/2

STANDARD UNIT WEIGHT

Shipping weight [kg] 1347 1473 1548 1666 1695 1746 1789

Operating weight [kg] 1362 1490 1565 1685 1714 1766 1809

DIMENSIONS

Lenght [mm] 3250 3250 3250 3250 3250 3250 3250

Depth [mm] 1095 1095 1095 1095 1095 1095 1095

High [mm] 2030 2030 2030 2030 2030 2030 2030

Packing volume [m

] 7 7 7 7 7 7 7

EXPANSION / STORAGE TANK

Expans. tank capacity [l] 12 12 16 16 18 18 18

Max pressure water side [kPa] 800 800 800 800 800 800 800

Nitrogen buffer press. [kPa] 150 150 150 150 150 150 150

N° of expansion tanks 1 1 1 1 1 1 1

Storange tank cap. [l] 200 200 200 200 200 200 200

HYDRAULIC CIRCUIT

Water side max press. [kPa] 550 550 550 550 550 550 550

Safety valve setting [kPa] 600 600 600 600 600 600 600

* R-22 unit:

- Maneurop 160 P Mineral (sizes 323-404-464-524-564)

- SUNISO 3GS (sizes 302-614)

2. PHE = plates

3. AX = axial fan

1. Data refer to the following conditions:

- Evaporator water = 12/7°C

- Ambient temperature = 35°C

Version S / Configuration LN

General Information

* R-22 unit:

- Maneurop 160 P Mineral (sizes 323-404-464-524-564)

- SUNISO 3GS (sizes 302-614)

2. PHE = plates

3. AX = axial fan

SIZE

302 323 404 464 524 564 614

Cooling

Cooling capacity (1) [kW] 79.2 89.6 98.4 115.9 129.1 137.4 153.3

Compr.input power (1) [kW] 27.6 29.8 34.9 39.1 44.1 49.4 57.6

Total input power (1) [kW] 30.1 32.2 37.4 42.6 47.8 52.9 61.2

COMPRESSORS

Compressors type scroll scroll scroll scroll scroll scroll scroll

Nr of compressors 2 3 4 4 4 4 4

Capacity control steps (ST) 2 3 4 4 4 4 4

Oil charge (C1) [l] 4.1 6.6 3.3 3.3 3.3 3.3 4.1

Oil charge (C2) [l] 4.1 3.3 3.3 3.3 3.3 3.3 4.1

Oil charge (C3) [l] 0 3.3 3.3 3.3 3.3 6.6 4.1

Oil charge (C4) [l] 0 0 3.3 3.3 3.3 6.6 4.1

Oil type (*)

Copeland

3MA (32 cSt)

Maneurop

160SZ

Polyolester

ISO32

Maneurop

160SZ

Polyolester

ISO32

Maneurop

160SZ

Polyolester

ISO32

Maneurop

160SZ

Polyolester

ISO32

Maneurop

160SZ

Polyolester

ISO32

Copeland

3MA (32 cSt)

Refrigerant charge (C1) [kg] 14.0 14.0 8.5 8.5 10.5 10.5 11.5

Refrigerant charge (C2) [kg] 14.0 8.5 8.5 8.5 10.5 10.5 11.5

Refrigerant charge (C3) [kg] 0 8.5 8.5 10.5 10.5 11.5 11.5

Refrigerant charge (C4) [kg] 0 0 8.5 10.5 10.5 11.5 11.5

Refrigerant circuits 2 2 2 2 2 2 2

EVAPORATORS

Evaporator type (2) PHE PHE PHE PHE PHE PHE PHE

Evaporator number [l/s] 1 1 1 1 1 1 1

Water flow [l/s] 3.8 4.3 4.7 5.5 6.2 6.6 7.3

Pressure drop [kPa] 28.2 22.0 26.1 26.2 32.1 28.3 34.8

Pump available head [kPa] 130 115 100 120 105 120 110

Water volume [l] 5.9 7.8 7.8 9.4 9.4 11.0 11.0

Outdoor Unit Fans

Evaporator type (3) AX AX AX AX AX AX AX

Evaporator number 2 2 2 3 3 3 3

Fan diametre [mm] 800 800 800 800 800 800 800

RPM [rpm] 870 870 870 870 870 870 870

Standard air flow [l/s] 7220 8890 8890 12770 12770 12770 12200

Single motor input [kW] 1.3 1.3 1.3 1.3 1.3 1.3 1.3

CONNECTIONS

Water connection ["] 2 " 1/2 2 " 1/2 2 " 1/2 2 " 1/2 2 " 1/2 2 " 1/2 2 " 1/2

STANDARD UNIT WEIGHT

Shipping weight [kg] 1378 1504 1579 1697 1726 1777 1820

Operating weight [kg] 1393 1521 1596 1716 1745 1797 1840

DIMENSIONS

Lenght [mm] 3250 3250 3250 3250 3250 3250 3250

Depth [mm] 1095 1095 1095 1095 1095 1095 1095

High [mm] 2030 2030 2030 2030 2030 2030 2030

Packing volume [m

] 7 7 7 7 7 7 7

EXPANSION / STORAGE TANK

Expans. tank capacity [l] 12 12 16 16 18 18 18

Max pressure water side [kPa] 800 800 800 800 800 800 800

Nitrogen buffer press. [kPa] 150 150 150 150 150 150 150

N° of expansion tanks 1 1 1 1 1 1 1

Storange tank cap. [l] 200 200 200 200 200 200 200

HYDRAULIC CIRCUIT

Water side max press. [kPa] 550 550 550 550 550 550 550

Safety valve setting [kPa] 600 600 600 600 600 600 600

OPERATING LIMITS

The water flow-rate at the evaporator must be constant and fall within MIN-MAX limits shown in the diagram/diagrams under the section on "Water/Aeraulic Connections".

Version S / Configuration ST

General Information

Version S / Configuration LN

SETTING THE CUT-OUT DEVICES AND CONTROLS

Opens Closes Value

High pressure switch [kPa] 2800 2000 -

Low pressure switch [kPa] 230 360 Antifreeze protection [°C] 4 6.5 -

High pressure safety valve [kPa] - - 3000

Low pressure safety valve [kPa] - - 1900

Max compressor starts per hour [n°] - - 10

Safety discharge thermostat [°C] - - 120

SIZE

302 323 404 464 524 564 614

Condenser

Max. air inlet temperature (1) [°C] 47.5 47.5 47.5 47 48.5 47 46

Max. air inlet temperature (2) [°C] 53.5 53.5 52.5 52 53 52.5 52

Min. air inlet temperature (3) [°C] -10 -10 -10 -10 -10 -10 -10

Min. air inlet temperature (4) [°C] 6 11 11 10 8 7 5

Min. air inlet temperature (5) [°C] 16 19.5 19.5 19 18 17.5 14.5

SIZE

302 323 404 464 524 564 614

Condenser

Max. air inlet temperature (1) [°C] 44.5 44.5 44.5 44.5 45.5 44 43

Max. air inlet temperature (2) [°C] 50 50 50 50 51 49.5 49

Min. air inlet temperature (3) [°C] -10 -10 -10 -10 -10 -10 -10

Min. air inlet temperature (4) [°C] 6 11 11 10 8 7 5

Min. air inlet temperature (5) [°C] 16 19.5 19.5 19 18 17.5 14.5

1) Unit at full load - Evaporator water = 12/7°C

2) Unit at partial load (automatic partialization)

3) With electronic low ambient temperature control (std), unit at full load and motionless external air

4) With electronic low ambient temperature control (std), unit at partial load and motionless external air

5) With electronic low ambient temperature control (std), unit at partial load with air speed 1m/s Note: The electronic low ambient temperature control with inverter is recommended for temperatures lower than 5°C

The sound levels refer to:

- units operating at full load

- rated test conditions

SOUND LEVELS

Version S / Configuration ST

Version S / Configuration LN

INTENDED USE

The unit is designed to cool water or a water and glycol mix for air-conditioning, within the limits defined in the technical bulletin and this manual.

ADDITIONAL SAFETY PRECAUTIONS

This unit has been especially designed and manufactured so to prevent any risk to persons and health hazard. For this reason, design solutions fit to eliminate (where possible) any cause of risk and sensibly reduce the probability of danger have been adopted.

Please refer to the "Residual Risks" section of this manual and strictly observe the behaviour prescriptions listed there in order to prevent any possible risk that hasn’t been possible to avoid in the design stage.

The sound pressure level is measured 1 metre from the surface of the unit operating in an open field.

General Information

Size SOUND POWER LEVEL (dB)

Sound

Pressure

Level

Octave Band (Hz)

63 125 250 500 1000 2000 4000 8000 dB(A) dB(A)

302

90 91 91 88 86 82 75 68 72 91

323

92 94 93 90 88 84 76 70 74 93

404

93 95 94 91 89 85 77 71 75 93

464

95 96 95 93 90 86 78 73 77 95

524

95 96 95 93 91 87 79 73 77 95

564

95 96 95 93 91 87 80 73 77 95

614

95 96 95 93 90 87 80 73 77 95

Sound

Power Level

Size SOUND POWER LEVEL (dB)

Sound

Pressure

Level

Octave Band (Hz)

63 125 250 500 1000 2000 4000 8000 dB(A) dB(A)

302

84 83 82 79 76 72 67 57 63 81

323

86 86 84 80 78 73 67 60 65 83

404

88 88 86 82 80 75 67 62 66 85

464

89 89 87 84 81 75 69 62 67 86

524

89 89 87 85 82 75 70 62 68 86

564

89 89 87 84 81 76 71 62 68 86

614

88 88 87 83 81 77 72 62 68 86

Sound

Power Level

Data calculated according to ISO 3744

- REGULATIONS AND CERTIFICATIONS -

UNI EN ISO 9001 CERTIFICATION

Clivet S.p.A., in order to guarantee customer satisfaction, has chosen the ISO 9001 Quality System as the reference for all its business activities. This is demonstrated by the company’s commitment to ongoing improvements in the quality and reliability of its products; its sales, design, purchasing, production and after-sales service activities are the means used to reach such purpose.

CE MARK

Clivet products bear the CE mark, in compliance with the requirements of the following EC directives, including the latest amendments, and with the corresponding national approximated legislation:

- 98/37/CE

- 89/336/CEE as modified by the directives 92/31/CEE and 93/68/CEE

- 73/23/CEE as modified by the directive 93/68/CEE

EUROVENT CERTIFICATION

Clivet is partecipating in the EUROVENT Certification Programme "Liquid Chilling Packages". Products are listed in the EUROVENT Directory of Certified Products and in the site www.eurovent-certification.com. Eurovent Chillers Certification Programme covers air cooled packaged chillers up to 600 kW and water cooled packaged chillers up to 1500 kW.

Regulations and Certifications

- 97/23/CE according to H module

CERTIFIED QUALITY SYSTEM

UNI EN ISO 9001:2000

INSPECTION UPON RECEPTION

The units are shipped in special protective packaging. Check upon receipt that the unit has not been damaged during transport, and that all the parts ordered are present. In the event of visible damage, immediately note the damage found on the shipping document, writing: "ACCEPTED WITH RESERVATION DUE TO EVIDENT DAMAGE TO THE PACKAGING", as both freight-paid and freightcharged deliveries are covered by insurance in accordance with Italian law no. 450, 22/08/85, "limits of compensation".

IMPORTANT

ALL THE FOLLOWING OPERATIONS MUST BE CARRIED OUT IN COMPLIANCE WITH THE SAFETY STANDARDS IN FORCE, RELATING TO BOTH THE EQUIPMENT AND THE METHODS USED.

CAUTION BEFORE PERFORMING THE HANDLING OPERATIONS, CHECK THAT:

- THE HOISTING CAPACITY IS SUITABLY-RATED FOR THE WEIGHT OF THE UNIT IN QUESTION

- THE DISTRIBUTION OF THE WEIGHTS AND THE POSITION OF THE CENTRE OF GRAVITY MUST BE CAREFULLY CONSIDERED

WARNINGS FOLLOWING THE SUGGESTIONS INDICATED ON THE OUTSIDE OF THE PACKAGING WILL ENSURE THAT THE UNIT IS PHYSICALLY INTACT AND FUNCTIONAL, TO THE BENEFIT OF THE END USER. THEREFORE, PLEASE HEED THE FOLLOWING WARNINGS:

- HANDLE WITH CARE

- KEEP DRY

- AVOID STACKING OTHER OBJECTS ON THE UNIT AT ALL COSTS (UNLESS THIS FALLS WITHIN THE LIMITS OF STACKED LEVELS SHOWN ON THE PACKAGING).

- AVOID POSITIONING THE UNITS WITH PROTECTIVE HEAT-SHRINK PACKAGING IN DIRECT SUNLIGHT, AS THE PRESSURE IN THE CIRCUITS MAY REACH VALUES AT WHICH THE SAFETY VALVES ARE ACTIVATED.

STORAGE

- Shelter from: direct sunlight, rain, sand and wind

- Temperature: maximum 60°C minimum -10°C

- Maximum humidity: 90%

- RECEPTION/POSITIONING -

HOISTING USING A CRANE OR SIMILAR

Position the lifting pipes, supplied, in the holes on the base of the unit. Position the ends of the pipes that protrude from the unit so that the safety pins (supplied) can be placed in the corresponding holes. Fit the lifting belts over the pipes between the safety devices and the base of the unit (see drawing). Gradually bring the lifting belts under tension, making sure they are positioned correctly. Make sure the unit is always in steady equilibrium. Start hoisting the unit. Once the unit has been positioned, remove the lifting pipes. These must be kept in a safe place, where they cannot damage people or property, for any future positioning of the unit.

HANDLING USING A FORK LIFT OR SIMILAR

Insert the forks in the long side of the base, in the corresponding slots.

Start hoisting the unit, making sure the load is in steady equilibrium.

Reception/Positioning

HOISTING USING A SELF-BALANCING FORK Insert the self-balancing fork in the special slits of the unit. A rigid protective structure should be placed on the upper edge of the unit, on the side facing the fork. Start hoisting the unit, making sure the load is in steady equilibrium.

Reception/Positioning

PLAN OF SPRING ANTIVIBRATION MOUNTS

1. n°4 holes Ø12

FUNCTIONAL CLEARANCES

IMPORTANT

WHEN PLACING THE UNIT, PLEASE MAKE SURE THAT THE FUNCTIONAL CLEARANCES ALLOW ALL MAINTENANCE OPERATIONS TO BE PERFORMED. THIS IS REQUIRED FOR OPTIMUM UNIT OPERATION AND PARTICULARLY FOR THE SAFETY OF AUTHORISED PERSONNEL AND EXPOSED PERSONS

The units require minimum clearances for operation and maintenance. In the event of multiple units, the functional clearances must be doubled. The following sketches regard some types of installation; check on a case-by-case basis, considering the information provided in this manual.

INSTALLATION OF ANTIVIBRATION MOUNTS

Spring or rubber (depending on the type of unit) antivibration mounts can be supplied upon request; in this case flexible joints (not supplied by Clivet) are required for the hydraulic / aeraulic / refrigerant connections.

The tables and the drawings show the instructions for the installation of the antivibration mounts, with the part numbers of the antivibration kits and their composition for correct installation.

The kits also include the assembly instructions.

INSTALLATION WITH JACK FOR UNIT LEVELLING

1. Minimum dimensions suggested

2. Jack

3. Plate

4. Clamps drowned in the concrete (not supplied)

5. Concrete foundation * Unloaded height

INSTALLATION DIRECT-TO-FRAME

1. Minimum dimensions suggested

2. Clamps drowned in the concrete (not supplied)

3. Concrete foundation * Unloaded height

Reception/Positioning

REMOVING THE PACKING

When removing the packaging the operator should, for personal safety, use suitable protective materials (gloves, glasses etc.)

Check for any visible damage.

Dispose of the packaging by taking it to specialist collection or recycling centres (in accordance with local regulations).

Remove the polystyrene packaging and the corresponding fasteners, making sure not to damage the unit.

1500

900

The tables refer to standard units. For special units or versions R, D, etc., refer to the unit dimensional drawings.

Reception/Positioning

UNIT CODE POSITIONING

302 PE581072

W1 = cod. C6100080 K=21,2 W2 = cod. C6100080 K=21,2 W3 = cod. C6100080 K=21,2

W4 = cod. C6100080 K=21,2 323 404 W1 = cod. C6100080 K=21,2 464 W2 = cod. C6100082 K=25,6 524 W3 = cod. C6100080 K=21,2 564 W4 = cod. C6100082 K=25,6 614

PE581051

ANTIVIBRATION MOUNTS CODES

DIMENSIONS

11 11

W1 W2

"G"

977

175299085

977

861 2990

160

4-5

148

4-5

148

200

350

175

4-5

KEY:

1. Compressor

2. Evaporator

3. Condenser

4. Unit mounts holes

5. Belt lifting holes

6. Fork lift lifting holes

7. Electrical panel

8. Power supply input

9. Sound proof enclosure

10. Centrifugal water Pump

11. Evaporator water inlet

12. Evaporator water outlet

Version S / Configuration ST

Version S / Configuration LN

SIZES 302 323 404 464 524 564 614

mm 2030 2030 2030 2030 2030 2030 2030

mm 3250 3250 3250 3250 3250 3250 3250

mm 1628 1675 1703 1701 1708 1722 1733

mm 1622 1575 1547 1549 1542 1528 1517

mm 523 544 554 557 559 564 568

mm 572 551 541 538 536 531 527

mm 1095 1095 1095 1095 1095 1095 1095

“ 2" 1/2 2" 1/2 2" 1/2 2" 1/2 2" 1/2 2" 1/2 2" 1/2

SIZES 302 323 404 464 524 564 614

mm 2030 2030 2030 2030 2030 2030 2030

mm 3250 3250 3250 3250 3250 3250 3250

mm 1637 1682 1709 1707 1714 1727 1738

mm 1613 1568 1541 1543 1536 1523 1512

mm 529 548 558 561 563 568 572

mm 566 547 537 534 532 527 523

mm 1095 1095 1095 1095 1095 1095 1095

“ 2" 1/2 2" 1/2 2" 1/2 2" 1/2 2" 1/2 2" 1/2 2" 1/2

Version S / Configuration ST

Version S / Configuration LN

WEIGHT DISTRIBUTION

POSITIONING

The units have been designed for outdoor installation in a fixed position.

Check that the fastening/support points are in level and can bear the weight of the unit (see weights and weight distribution).

Avoid installation in areas that may be subject to flooding.

Installations below ground level or near very high walls must be carefully assessed.

Place a layer of rubber between the base of the unit and the support to prevent noise and vibrations. Depending on the place of installation (balconies or roofs), the unit should be placed on special antivibration mounts (in this case, flexible joints are required for the water/aeraulic connections - joints are not supplied by Clivet).

Fasten the unit to the ground. The choice of the location of the unit is of fundamental importance for correct operation. Obstacles that block the flow of air, difficulty

in air circulation, leaves or other objects that may block the exchanger coils, winds that contrast or excessively assist the air flow, phenomena of stratification or air re-circulation and nearby sources of heat, can cause operating anomalies (increases in condensing pressure, and consequently decreases in performance) or the shut-down the machine (due to high pressure).

Reception/Positioning

W1 W2

"G"

175299085

SIZES 302 323 404 464 524 564 614

W1 kg 346 352 355 380 383 386 389

W2 kg 369 399 418 447 454 467 477

W3 kg 313 346 364 395 401 413 423

W4 kg 333 392 428 463 476 499 519

Operating weight kg 1361 1489 1565 1685 1714 1765 1808

Shipping weight kg 1347 1473 1548 1666 1695 1746 1789

SIZES 302 323 404 464 524 564 614

W1 kg 348 354 357 382 384 388 391

W2 kg 375 405 424 453 460 473 483

W3 kg 322 355 373 403 410 422 432

W4 kg 348 407 443 478 491 514 534

Operating weight kg 1393 1521 1597 1716 1745 1797 1840

Shipping weight kg 1378 1504 1579 1697 1726 1777 1820

Residual Risks

- RESIDUAL RISKS -

SAFETY INSTRUCTIONS

CAUTION

THIS BULLETIN DESCRIBES EVERY OPERATION THAT MAY CAUSE A SITUATION OF RISK, AS WELL AS THE PRECAUTIONARY MEASURES TO BE HEEDED IN EACH CASE

The figure below highlights the area in which only authorised personnel may operate.

- External danger zone, identified by a precise area around the unit and its vertical projection on the ground in the case of hanging unit.

- Internal danger zone, identified by the area that can be entered only after having intentionally removed the protecting panels or parts of these.

DEFINITION OF DANGER AREA

- WARNING: if used improperly may lead to serious injury

To avoid injury to the user, third parties or the authorised personnel and damage to property, the following instructions MUST be heeded; incorrect use due to these instructions being neglected may cause damage or injury, the seriousness of which is classified according to the following symbols:

SAFETY PRESCRIPTIONS

- PROHIBITION: may damage the appliance and consequently the health of the user

- DANGER: may lead to serious injury, death, etc.

WARNING!

- Always contact authorised personnel for the maintenance and repair of this appliance. Contact a qualified installer for the installation. This appliance has not been designed to be used by children or incapable people without supervision. Keep out of the reach of the children and their games.

- Use only suitable components for the maintenance operations. The use of defective components may cause injuries or water leaks, fires, electric shock, falls involving the unit and/or the appliance, …

- Use the specified wires for connecting the appliance to the electrical system and properly connect the cables to the connection sections so that the stress from the wires not is applied to the sections. Incomplete or insecure connections may cause fires.

- Installation must be performed following all the safety standards, with reference to the installation manual. Incomplete or incorrect installation may cause serious personal injury, as the result of fire, electric shock, the falling of the unit or water leaks.

- Avoid accidental contact with the compressors and outlet tubing, as this may cause burns and injuries. Always use protective gloves.

- Avoid entering the danger zone. Use appropriate clothing and glasses. The expelling of the refrigerant gas due to the activation of the fuse plug or the safety valves may cause injuries and intoxication.

- Incorrect installation may cause water leaks, electric shocks or fires; contact an authorised reseller or specialised installer, keeping in mind that faults caused by incorrect installation are not covered by warranty. The units must be installed in an easily accessible site: any additional costs resulting from the hire of special equipment for the maintenance of the unit are completely at the customer’s expense.

- Do not use the switch with wet hands. This may cause electric shocks.

- Never clean the appliance using water. This may penetrate into the unit and damage the insulation, and possibly cause electric shocks.

- Do not insert objects in the air outlets or inlets. As the fan works at high speed, this may cause injuries or damage the unit.

- Securely fasten the cover of the unit’s electrical components. Failure to fasten the cover properly may lead to fires and electric shock, due to dust, water, ...

- Use protective gloves to avoid injury due to contact with sharp edges.

- Never place a combustion appliance directly below the flow of air to the appliance. This may have negative affects on the combustion process.

- Keep pets and plants away from the flow of air. They may be injured or damaged.

- Never touch the ventilation fins when the appliance is in operation. The blades may cause injuries.

- Carefully check that the unit is secured to the ground to avoid injury due to the unit tipping over.

DANGER!

- Never leave any compressor outlet and inlet valves closed when the machine is off. This may cause explosion due to an increase in the room temperature (fires), with the consequent possibility of injuries, intoxication, serious burns, death.

- Securely install the appliance at a point that is able to support the entire weight of the appliance. Installation at points that are not sufficiently secure may cause the appliance to fall and consequently cause possible injury and damage.

Residual Risks

R-407C

IDENTIFYING ELEMENTS FOR THE SUBSTANCE

- Product name: forane 407C N°SDS 01965/1

- Supplier: ELF ATOCHEM ITALIA, Via G.Murat 17, 20159 Milano tel. 02/668111

COMPOSITION Chemical nature of the compound: mixture based on:

- Forane 32(difluoromethane) (N° CAS: 75-10-5)

- Forane 125 (pentafluoroethane) (N° CAS: 354-33-6)

- Forane 134a (1.1.1.2 tetrafluoroethane) (N° CAS: 811-97-2)

REFRIGERANT SAFETY CHARTS

- Avoid accidental contact with the exchanger coils, by always using protective gloves and applying the special protective grilles. Contact may cause minor injuries.

- In the case of anomalies (burning smell, smoke) stop the appliance and turn off the automatic switch. Continuing to operate the unit in abnormal conditions may cause fire, damage, etc. Contact the manufacturer’s authorised service centre.

- Check that there are no refrigerant gas leaks once installation has been completed.

- Do not install the appliance in sites where there are sporadic or possible leaks of flammable gas. If gas accumulates in the area surrounding the unit, explosions may occur.

- Never turn the unit on or off using the mains switch. This may cause electric shock or fires due to the generation of heat.

- Make sure the main isolator switch is open and padlocked before removing guards, in that contact with the live parts that are accessible after having removed the guards may cause death by electrocution or serious burns.

- Pay special attention when earthing the metal earth of the machine, making sure that the metal earth is not live and may thus cause death by electrocution.

- No repairs may be performed by the customer. Carrying out such operations incorrectly may lead to fires, electric shock, injuries from the unit falling, water leaks, etc. Contact the manufacturer’s authorised service centre.

- Pay special attention to the correct sizing of the cables and the protection devices on the mains power connection line, so as to avoid possible fires due to short circuits or the overheating of the cables upstream of the machine’s isolator switch, which may cause death by serious burns and intoxication.

PROHIBITIONS

Residual Risks

IDENTIFICATION OF RISK Greatest physical and chemical dangers:

- Thermal decomposition in toxic and corrosive products

FIRST-AID MEASURES General information:

- Inhalation: Carry the victim into the open air. Resort to oxygen or artificial respiration if necessary.

- Contact with skin: Frostbite must be treated in the same way as burns.

- Contact with the eyes: Immediate rinsing in abundant water. If irritation should continue, consult an ophthalmologist.

- Medical instructions: Do not administer catecholamines (due to the cardiac sensitisation caused by the product).

FIRE PREVENTION MEASURES

- Specific dangers: Thermal decomposition into toxic and corrosive products. Hydrofluoric acid. Carbon monoxides.

- Specific means of intervention: Cool containers/cisterns with jets of water. Prevent any sparks or flames.

- Do NOT smoke.

- Special protection systems for fire-fighting squads: Carry breathing apparatus and wear protective clothing.

MEASURES TO TAKE IN CASE OF ACCIDENTAL SPILLAGE

- Individual precautions: Avoid contact with the skin, eyes and inhalation of vapours. Use personal protection devices.

- In an enclosed space: ventilate or use breathing apparatus (risk of suffocation). NO SMOKING ALLOWED.

- Precautions for environmental protection: Minimise the amount of waste deposited in the environment.

MANIPULATION AND STORAGE

- Technical measures/precautions: Form of storage and manipulation applicable to the products: PRESSURIZED GAS. Ensure adequate ventilation and evacuation for the level of equipment.

- Advice for use: Prevent sparks and contact with hot surfaces. DO NOT SMOKE.

- Technical measures/Storage procedures: Store at room temperature in the original container. Keep away from flames, hot surfaces and sparks. Store in a cool, well-ventilated place. Protect full containers from sources of heat to avoid excessive pressures.

- Recommended: Ordinary steel.

- Avoid: Alloy containing more than 2% magnesium. Plastics.

CONTROL OF INDIVIDUAL EXPOSURE/PROTECTION

- Precautionary measures to be taken: Ensure a sufficient exchange of air and/or suction in workplaces.

- Control parameters. Exposure limits: There is no F-USA limit value Forane 134a Elf recommended limit value: VME=1000ppm Forane 32 Elf recommended limit value: VME=1000ppm Forane 125 Elf recommended limit value: VME=1000ppm

- Protections: Respiratory protection: In case of insufficient ventilation, carry suitable breathing apparatus. Protection for the hands: Gloves Protection for the eyes: Protective eyewear.

PHYSICAL AND CHEMICAL PROPERTIES

- Physical state (20°C): liquid gas

- Colour: colourless

- Smell: Slightly similar to ether; pH: not applicable.

- Boiling point/interval: -42,4 °C

- Melting point/interval: Not inflammable in test conditions

- Vapour pressure: (25°C): 1.13 Mpa (11,3 bar) a (50°C): 2.11 Mpa (21,1 bar) a (70°C): 3.26 Mpa (32,6 bar)

- Vapour density: At boiling point 4,54 kg/m3

- Density: (25°C) 1133 kg/m3 a (50°C) 1004 kg/m3 a (70°C) 861 kg/m3

STABILITY AND REACTIVITY

- Conditions to avoid: Avoid contact with flames and red-hot metal surfaces.

- Dangerous decomposition products: Thermal decomposition into toxic and corrosive products: Toxic fluorinates Hydrogen fluoride (hydrofluoric acid) .

- Further information: Product stable in normal storage and handling conditions.

TOXICOLOGICAL INFORMATION

- Inhalation: Practically non-toxic in experiments conducted on animals Forane 134a, 32, 125. No rat mortality at 500000 ppm/4h. As with other volatile aliphatic halogenated compounds, with the accumulation of vapours and/or the inhalation of large quantities, the product can cause: loss of consciousness and heart problems aggravated by stress and lack of oxygen; risk of death.

- Contact with skin: Frostbite possible from splashes of liquefied gas.

- Chronic toxicity: Studies on extended inhalation in animals have not highlighted any sub-chronic toxic effect (rat/3 months/ Inhalation:50000ppm).

- Specific effects: Genotoxicity, according to experimental data available Forane 134a, 32, 125 NOT Genotoxic.

- Carcinogenic effect: Forane 134a experiments on animals have not demonstrated a clear cancerogenous effect (rat /oral inhalation)

- Toxicity for reproduction: Foetal development Forane 134a, 32, 125. according to available data there are no toxic effects for foetal development. Fertility, according to available data for animals: Forane 134a no effect on fertility (mice/inhalation) .

ECOLOGICAL INFORMATION Forane 32

- Durability/degradability: Not easily biodegradable in water: 5% after 28d

- Bioaccumulation: Practically non-absorbable by biological organisms log pow 0,21 Forane 125

- Mobility: Rapid evaporation t ½ life 3,2 h (estimated)

- Durability/degradability: Not easily biodegradable in water: 5% after 28 days. In the atmosphere degradation at rate of 1/2 life in 28,3

y (estimated). . Potential for destruction of ozone ODP (R-11 = 1)=0. Potential greenhouse effect (GWP): (HGWP) = 0,58. Low absorption in ground and sediments log Koc= 1,3-1,7

- Bioaccumulation: Practically non-absorbable by biological organisms log pow 1,48 Forane 134a

- Mobility: Rapid evaporation t ½ life 3 h (estimated)

- Durability/degradability: Not easily biodegradable in water: 3% after 28 days. In the atmosphere degradation at rate of 3% after 28 days (estimated). Potential for destruction of ozone ODP (R-11 = 1)=0. Potential greenhouse effect (GWP): (HGWP) = 0,26.

- Bioaccumulation: Practically non-absorbable by biological organisms log pow 1,06

NOTES CONCERNING DISPOSAL Disposal of product: recycle or give to a centre specialized in disposal.

INFORMATION ON SHIPPING Consult the ELF ATOCHEM safety service for supplementary information and updates ONU number 3163. RID/ADR class 2 figure (and letter) 4° a Regulations: No. danger/No. material 20/3163 label 2 IMDG class 2.2 ONU (IMDG) 3163 Regulations: 2.2 /2 label IATA class 2.2 ONU (IATA) or No.ID 3163 Regulations: 2.2 /2 label

INFORMATION ON REGULATION EEC directives Security reports: D.91/155/CEE modified by D.93/112/CEE: Dangerous substances Classification/CE mark Dangerous manufactured compounds: Not classified as dangerous Inventory: EINECS compliant

OTHER INFORMATION Recommended uses: low-temperature coolant Bibliographical references: Encyclopedie des gas (Air Liquide-ed.1976- ELSEVIER AMSTERDAM)

R-22

IDENTIFYING ELEMENTS FOR THE SUBSTANCE

- Product name: forane 22 N°SDS 0005/7

- Supplier: ELF ATOCHEM ITALIA, 4 cours Michelet Cedex 42, 92091 Paris, France. Tel: 00331 49.00.80.80

INFORMATION CONCERNING COMPOSITION OF COMPONENTS Chemical nature of the compound: Mixture based on:

- Chlorodifluoromethane halogenated hydrocarbon N° CAS 75-45-6 EINECS 200-871-9

IDENTIFICATION OF RISK

- Effects on health: practically non-toxic

- Greatest physical and chemical dangers: Thermal decomposition in toxic and corrosive products

- Specific dangers/CEE: Dangerous for the ozone layer.

FIRST-AID MEASURES General information:

- Inhalation: Carry the victim into the open air. Resort to oxygen or artificial respiration if necessary.

- Contact with skin: Frostbite must be treated in the same way as burns.

- Contact with the eyes: Immediate rinsing in abundant water. If irritation should continue, consult an ophthalmologist.

FIRE PREVENTION MEASURES

- Specific dangers: Thermal decomposition into toxic and corrosive products. Hydrofluoric acid. Hydrochloric acid in gaseous form. Phosgene Carbon monoxides (CO).

- Specific means of intervention: Cool containers/cisterns with jets of water. Prevent any sparks or flames.

- Do NOT smoke.

- Special protection systems for fire-fighting squads: Carry breathing apparatus and wear protective clothing.

MEASURES TO TAKE IN CASE OF ACCIDENTAL SPILLAGE

- Individual precautions: Avoid contact with the skin, eyes and inhalation of vapours.

- In an enclosed space: ventilate or use breathing apparatus (risk of suffocation). NO SMOKING ALLOWED.

- Remove all risk of sparks or flames.

MANIPULATION AND STORAGE

- Technical measures/precautions:Form of storage and manipulation applicable to the products: PRESSURIZED GAS. Ensure adequate ventilation and evacuation for the level of equipment.

- Advice for use: Prevent sparks and contact with hot surfaces. DO NOT SMOKE.

- Recommended: Ordinary steel.

- Avoid: Alloy containing more than 2% magnesium. Plastics.

CONTROL OF INDIVIDUAL EXPOSURE/PROTECTION

- Precautionary measures to be taken: Ensure a sufficient exchange of air and/or suction in workplaces.

- Control parameters. Exposure limits:

Residual Risks

France 1989: VME = 1000 USA 1992: TWA = 1000 p.p.m. = 3500 mg/m3

- Individual protective equipment: Respiratory protection: In case of insufficient ventilation, carry suitable breathing apparatus. Protection for the hands: Gloves Protection for the eyes: Protective eyewear.

- Specific hygiene measures: avoid contact with the skin, eyes and inhalation of the vapours.

PHYSICAL AND CHEMICAL PROPERTIES

- Physical state (20°C): liquid gas

- Colour: colourless

- Smell: Slightly similar to ether; pH: not applicable.

- Boiling point/interval: -40.8 °C

- Melting point/interval: -160 °C

- Decomposition temperature: 480 °C

- Vapour pressure: (20 °C) 0.91 Mpa (9.1 bar); at 50 °C: 1.91 Mpa (19.4 bar)

- Vapour density: (20° C) 3.57 kg/m3

- Solubility: water (25 °C) 3g/l - solvent soluble in hydrocarbons and chlorinated solvents, alcohols, ketones, esters.

- Solubility of water in the product at 30° C: 0.15% in weight.

STABILITY AND REACTIVITY

- Conditions to avoid: Avoid contact with flames and red-hot metal surfaces.

- Dangerous decomposition products: Thermal decomposition into toxic and corrosive products: hydrofluoric acid, hydrochloric acid in gaseous form, phosgene, car-bon monoxide (CO)

TOXICOLOGICAL INFORMATION

- Inhalation: Practically non-toxic in experiments conducted on animals. No effect below 50,000 p.p.m.

- As with other volatile aliphatic halogenated compounds, with the accumulation of vapours and/or the inhalation of large quantities, the product can cause: loss of con-sciousness and heart problems aggravated by stress and lack of oxygen; risk of death.

- Contact with skin: Frostbite possible from splashes of liquefied gas.

- Contact with the eyes: Temporary irritation.

ECOLOGICAL INFORMATION

- Mobility: Rapid evaporation: 1/2 life 2.7 h.

- Durability/degradability: Not easily biodegradable in water: 0% after 28 days. In the atmosphere degradation at rate of 1/2 life in 14 years. Potential for destruction of ozone ODP (R-11 = 1) = 0.055. Potential greenhouse effect (HGWP) - 0.36. Low absorption in ground and sediments log Koc = 1.8.

- Bioaccumulation: Practically non-absorbable by biological organisms: log pow 1.08.

- Aquatic toxicity: Acute toxicity, level of toxicity for fish over 24 hours = 180 mg/l; for anaerobic bacteria, level of toxicity over 24 hours > 400 mg/l.

NOTES CONCERNING DISPOSAL Disposal of product: recycle or give to a centre specialized in disposal.

INFORMATION ON SHIPPING ONU number 1018. RID/ADR class 2 figure (and letter) 3° a Regulations: No. danger/No. material 20/1018 label 2 IMDG class 2.2 ONU (IMDG) 1018 Regulations: NON INFLAMMABLE GAS/2 label IATA class 2.2 ONU (IATA) or No.ID1018 Regulations: NON INFLAMMABLE GAS/2 label Product code: 00055/7

INFORMATION ON REGULATION EEC directives Security reports: D.91/155/CEE modified by D.93/112/CEE: Dangerous substances and manufactured compounds Dangerous manufactured compounds: D.67/548/CEE modified by D.93/21/CEE: Guide to labelling (18th APT). R59 Dangerous for the ozone layer S59 Consult producer/supplier for information concerning recovery and recycling. S61 Do not dump. Consult specific instructions and safety information.

OTHER INFORMATION Recommended uses: low-temperature coolant, Freezing agent, Air conditioning. Bibliographical references: Encyclopédie des gas (Air liquide-ed. 1976 - ELSEVIER AMSTERDAM). INRS toxicological report: No. 142 CHLOROFLUOROMETHANE

This document refers to the product as is, in accordance with the specifications supplied by ELF ATOCHEM.

If combinations or mixtures are made, check that there are no new dangers resulting from this action. The information provided in this report has been provided in good faith and is based on our latest knowledge of the product in question as of the date of publication of the same. The attention of users is drawn to the potential risks of employing the product for any use other than that for which it is intended. This report must be used and reproduced solely for purposes of prevention and safety. The list of legislative, regulatory or administrative texts must not be considered exhaustive. The user is obliged to refer to all the official texts concerning the use, conservation and manipulation of the product for which he or she is solely responsible. The user of the product must also provide all those who might come into contact with the product with the information necessary for their working safety and the protection of their health and that of the environment, by giving them a copy of this safety chart.

Residual Risks

DISCONNECTING THE UNIT

- DECOMMISSIONING OF THE UNIT -

- The units must be disconnected by authorised personnel, who before proceeding must first read the Residual Risks section in this manual.

- Before disconnecting the unit, the following must be recovered, if present:

1. the refrigerant (if the circuits cannot be isolated): the refrigerant must be removed using suction devices operating in a closed circuit, so as to ensure that none of the compound is released into the atmosphere.

2. the antifreeze in the circuits: when removing this fluid, make sure than none leaks or is released into the environment. The antifreeze fluid must be stored in special containers. IMPORTANT: When recovering the substances present in the unit, all measures must be taken to avoid damaging persons and things and polluting the surrounding area.

- Awaiting dismantling and disposal, the unit can also be stored outdoors, as bad weather and rapid changes in temperature will not cause damage to the environment.

DISMANTLING AND DISPOSAL

- THE UNIT MUST ALWAYS BE SENT TO AUTHORISED CENTRES FOR DISMANTLING AND DISPOSAL.

- When dismantling the unit, the fan, the motor and the coil, if operating, may be recovered by the specialist centres for

reuse.

NOTE:

For further information on the decommissioning of the unit, contact the manufacturer.

Decommissioning of the unit

- All the materials must be recovered or disposed of in compliance with the corresponding national standards in force.

GENERAL

- WAT ER /AERAULIC CONNECTIONS -

Install ON/OFF valves next to the parts that are subject to maintenance. This allows their replacement without having to empty the system. The pipework must be designed with the minimum possible difference in height. Install automatic or manual vents in the high points of the piping to allow the outlet of the air in the circuit. The system can be kept at the right pressure by means of an expansion vessel or of a combined pressure reduction-discharge valve. All the water pipes must be insulated in order to prevent condensation and heat dispersions along the piping itself. Make sure that the insulation is vapour seal type. Check for any leaks in the piping before insulating it. Air-venting and draining connections must protrude outside of the insulation so as to be accessible. The weight of the water connections must be adequately supported by the outside of the unit. The fittings on the exchanger must not be subject to stress. For units with antivibration mounts, flexible joints must be used for the water connections. It is suggested to install thermometers, pressure gauges and bleed valves at the inlet/outlet of the unit, as this will help in the routine checking and maintenance of the unit.

ATTENTION: The installation of a steel mesh strainer on the inlet of the exchangers must be scheduled in order to protect them from foreign materials.

Danger of frost. If the unit and its water connections are subject to temperatures lower than 0°C, specific actions must be taken to avoid frost on the exchanger and in the corresponding water circuit. If the unit is fitted with an antifreeze heater (standard oR optional, depending on the model) on the exchanger side, this must always be powered together with the heaters in the water circuit. An antifreeze solution can be used (e.g. Ethylene Glycol) in the required percentage (see the Technical bulletin). The water circuit (including the exchanger) can be drained during for seasonal shut-down. Carefully check that there are no leaks from the pipes when filling the system.

Water/Aeraulic Connections

If the flow switch is not installed on the unit, it must be fitted in the system.

For units operating in parallel with on-board hydronic assemblies, a non-return valve should be fitted, to prevent the circulation of water.

UNIT = unit EXT = exterior VS = water side safety valve SPM = water side minimum pressure switch SF = air vent stop valve SC = discharge stop valve P = differential pressure switch B = water side low temperature switch VE = expansion tank V = cock VSA = automatic air vent ST = water inlet and outlet probes

F = optional flow switch PO = pump A = water side high temperature switch R = resistor FI = water side filter M = manometer ACC = storage GRA = filling valve OPT = optional

SUGGESTED WATER CONNECTION DIAGRAM

EVAPORATOR PRESSURE DROPS (WATER SIDE)

The unit is not available with pressure drops lower than 20kPa.

Water/Aeraulic Connections

EVAPORATOR ANTIFREEZE SOLUTIONS

The correction factors are referred to the water/glycol solution used in order to prevent ice forming in the heat exchanger (water side) during the seasonal stop.

% ETHYLENE GLYCOL BY WEIGHT

10% 20% 30% 40%

Freezing point °C -3.9 -8.9 -15.6 -23.4

Safety temperature °C 1 -4 -10 -19

Cooling capacity - 0.990 0.981 0.974 0.968

Compr.input power - 0.993 0.988 0.984 0.981

Evaporator glycol solution flow - 1.010 1.033 1.072 1.124

Pressure drop - 1.060 1.118 1.182 1.243

PUMP PERFORMANCE RELATED TO THE EFFECTIVE PLANT HEAD

Pump Type FLA (A) LRA (A) FLI (KW)

PUMP 1 3,1 14.6 1,1

PUMP 2 3.8 19.0 1.5

PUMP 3 5.0 24.8 1.9

PUMP 4 4.9 33.8 2.2

PUMP 5 6.5 44.2 3.0

PUMP 6 8.5 63.8 4.0

If the unit is not supplied with a pumping station, follow what outlined in the picture for the passage of the water inlet and outlet tubes.

WATER FLOW LIMITS

Water/Aeraulic Connections

SIZE

302 323 404 464 524 564 614

Min water flow l/s 3.2 4.1 4.1 4.9 4.9 5.6 5.6

Max water flow l/s 5.6 7.2 7.2 8.5 8.5 9.7 9.7

302 UNIT

Q = water flow DP = pressure drop

323-404 UNIT

464-524 UNIT

80 kPa

100 kPa

120 kPa

140 kPa

160 kPa

180 kPa

200 kPa

220 kPa

240 kPa

260 kPa

280 kPa

300 kPa

320 kPa

340 kPa

3.0l/s 3.5l/s 4.0l/s 4.5l/s 5.0l/s 5.5l/s 6.0l/s

1 (std

)

80 kPa

100 kPa

120 kPa

140 kPa

160 kPa

180 kPa

200 kPa

220 kPa

240 kPa

260 kPa

280 kPa

300 kPa

320 kPa

340 kPa

3.5l/s 4.0l/s 4.5l/s 5.0l/s 5.5l/s 6.0l/s 6.5l/s 7.0l/s 7.5l/s

1 (std)

564-614 UNIT

80 kPa

100 kPa

120 kPa

140 kPa

160 kPa

180 kPa

200 kPa

220 kPa

240 kPa

260 kPa

280 kPa

300 kPa

320 kPa

340 kPa

4.5l/s 5.0l/s 5.5 l/s 6 .0l/s 6.5l/s 7.0l/s 7 .5l/s 8.0l/s 8.5l/s 9.0l/s

2 (std)

80 kPa

100 kPa

120 kPa

140 kPa

160 kPa

180 kPa

200 kPa

220 kPa

240 kPa

260 kPa

280 kPa

300 kPa

320 kPa

340 kPa

5.5l/s 6.0l/s 6.5l/s 7.0l/s 7.5l/s 8.0l/s 8.5l/s 9.0l/s 9.5l/s 10.0l/s

3 (std)

- ELECTRICAL CONNECTIONS -

GENERAL

IMPORTANT

- BEFORE PERFORMING ANY OPERATIONS ON THE ELECTRICAL SYSTEM, MAKE SURE THAT THE POWER SUPPLY TO THE UNIT IS ISOLATED AT THE SOURCE.

- FOR ALL OPERATIONS DESCRIBED IN THIS MANUAL, OR IN ANY CASE INVOLVING THE ELECTRICAL SYSTEM, REFER TO THE WIRING DIAGRAM ENCLOSED WITH THE UNIT; THE CODE OF THE WIRING DIAGRAM IS SHOWN ON THE RATING PLATE LOCATED IN OR NEXT TO THE ELECTRICAL PANEL.

- THE WIRING DIAGRAM, TOGETHER WITH THIS MANUAL, MUST BE KEPT WITH CARE AND MUST BE MADE AVAILABLE FOR FUTURE OPERATIONS ON THE UNIT.

- ALL ELECTRICAL CONNECTIONS MUST BE PERFORMED BY PERSONNEL WITH THE NECESSARY LEGAL REQUISITES.

PRELIMINARY OPERATIONS

- Open the main isolator switch.

- If no main isolator switch is

present, check that the isolator device at the origin of the unit’s power supply line is open,

padlocked and fitted with a special sign.

- Check that the characteristics of the mains power conform to the data shown on the rating plate located inside the electrical panel.

CONNECTING THE MACHINE TO THE MAINS POWER SUPPLY

Identify, with the help of the machine’s wiring diagram, the power cable connection terminals L1 - L2 - L3 (N, where present) and the earth cable connection terminal. (L-N in units with single-phase power supply). Rate the electrical cut-out devices according to the rules of good practice prescriptions, based on the machine’s electrical data contained in the technical bulletin, in this manual, and on the machine’s rating plate*. Size the cross-section of the power cables and earth cable, according to the rules of good practice and the standards in force, based on the characteristics of the cut-out devices used.

CAUTION:

- The correct sequence of the phases L1, L2, L3 must be followed. Failure to follow the correct sequence may lead, when the machine is started, to serious malfunctions.

- Before powering the unit, check that all the cut-out devices removed during the electrical connection work have been replaced.

* The presence of any accessories not envisaged on the standard units may change, even slightly, the machine’s electrical data as shown in the technical bulletin (this in fact refers to the standard unit). For this reason, in the event of discrepancies between the data on the rating plate and the data provided in this manual or in the technical bulletin, the data on the rating plate must be considered.

FUNCTIONAL CONNECTIONS

IMPORTANT

Refer to the machine’s wiring diagram to identify the terminals and the function of the various connections.

- REMOTE ON/OFF CONTROL The unit is fitted for connection to a remote device for switching the machine on or off, such as a switch, timer or the contact of a device in a centralised supervisory system. The contact must be suitable for the switching of low power loads and voltage free (free contact).

Electrical Connections

The unit’s supply line protection device must be able to cut-off power in the event of an assumed short-circuit, the value of which must be determined by personnel authorised for design of electrical systems, in accordance with the characteristics of the system.

- CONNECTING THE WATER PUMP CONTROL If the unit is ordered without an on-board pump, it is fitted for the control of the water pump contactor (free contact, max 24V 1A). This power must be taken from a transformer with separate primary and secondary windings that complies with the standards in force. The maximum rated current is 1.1A in Ac11. The control module manages the operation of the pump with safety logic (different on/off times for the pump and compressor, and management of the safety devices on the water side). N.B. For connection to a CLIVET pumping assembly, the water pump is controlled at 230V, therefore, in the event of maintenance, isolate both electrical panels. This is an important warning for the safety of the operator.

- FLOW SWITCH/WATER DIFFERENTIAL PRESSURE SWITCH This is a safety digital input that must be connected to the water flow control device/devices. The standard devices are: a) A flow switch, fitted with an NO voltage-free contact (open when there is no water flow) b) A water differential pressure switch, fitted with an NO voltage-free contact (open when there is no pressure difference between the exchanger inlet/outlet)

If the unit is ordered without an on-board pump, these devices should be fitted in series with a NO contact on the water pump remote control switch.

IMPORTANT: The installation and correct connection of the water flow control devices is fundamental for the operating safety of the machine. These devices are necessary even if the unit is already fitted with an internal water differential pressure switch.

- REMOTE MACHINE ALARM SIGNAL The unit is fitted with a relay that is activated whenever a machine alarm condition arises. The contact of this relay, which is normally open when no alarm is present, is connected to the two terminals for the remote signal. Refer to the machine’s wiring diagram.

The voltage that can be applied to these terminals must not exceed 24V. This voltage must be taken from a transformer with separate primary and secondary windings, in compliance with the legislation in force. The maximum current value is 1.1A at AC11.

Version S / Configuration ST

ELECTRICAL DATA

Electrical Connections

ENABLING THE SECOND SET POINT FROM DIGITAL INPUT

See the wiring diagram supplied with the unit to determine which terminals correspond to this function.

DEMAND LIMIT

See the wiring diagram supplied with the unit to determine which terminals correspond to this function.

SIZE 302 323 404 464 524 564 614

F.L.A. Full load current at max admissible conditions

Compressor 1 400/3/50 [A] 29.8 19.5 19.5 25.3 25.3 29.2 29.8

Compressor 2 400/3/50 [A] 29.8 29.2 19.5 19.5 25.3 25.3 29.8

Compressor 3 400/3/50 [A] - 19.5 19.5 25.3 25.3 29.2 29.8

Compressor 4 400/3/50 [A] - - 19.5 19.5 25.3 25.3 29.8

External fan 400/3/50 [A] 4 4 4 4 4 4 4

Nr. of fans - 2 2 2 3 3 3 3

Pump 400/3/50 [A] 3.1 3.1 3.1 3.8 3.8 5 5

Total 400/3/50 [A] 72.9 81.5 91.3 107.6 119.2 128.1 138.3

L.R.A. Locked rotor current

Compressor 1 400/3/50 [A] 198.0 130.0 130.0 175.0 175.0 175.0 198.0

Compressor 2 400/3/50 [A] 198.0 175.0 130.0 130.0 175.0 175.0 198.0

Compressor 3 400/3/50 [A] - 130.0 130.0 175.0 175.0 175.0 198.0

Compressor 4 400/3/50 [A] - - 130.0 130.0 175.0 175.0 198.0

External fan 400/3/50 [A] 14 14 14 14 14 14 14

Nr. of fans - 2 2 2 3 3 3 3

Pump 400/3/50 [A] 14.6 14.6 14.6 19.0 19.0 24.8 24.8

F.L.I. Full load power input at max admissible conditions

Compressor 1 400/3/50 [kW] 18.8 11.3 11.3 14.5 14.5 17.3 18.8

Compressor 2 400/3/50 [kW] 18.8 17.3 11.3 11.3 14.5 14.5 18.8

Compressor 3 400/3/50 [kW] - 11.3 11.3 14.5 14.5 17.3 18.8

Compressor 4 400/3/50 [kW] - - 11.3 11.3 14.5 14.5 18.8

External fan 400/3/50 [kW] 2.0 2.0 2.0 2.0 2.0 2.0 2.0

Nr. of fans - 2 2 2 3 3 3 3

Pump 400/3/50 [kW ] 1.1 1.1 1.1 1.5 1.5 1.9 1.9

Total 400/3/50 [kW] 43.4 45.7 51.0 59.8 66.2 72.1 83.7

Value 400/3/50 [A] 241.1 207.8 201.8 257.3 268.9 273.9 306.5

M.I.C. Max starting current

Electrical Connections

Version S / Configuration LN

SIZE 302 323 404 464 524 564 614

F.L.A. Full load current at max admissible conditions

Compressor 1 400/3/50 [A] 29.8 19.5 19.5 25.3 25.3 29.2 29.8

Compressor 2 400/3/50 [A] 29.8 29.2 19.5 19.5 25.3 25.3 29.8

Compressor 3 400/3/50 [A] - 19.5 19.5 25.3 25.3 29.2 29.8

Compressor 4 400/3/50 [A] - - 19.5 19.5 25.3 25.3 29.8

External fan 400/3/50 [A] 2.3 2.3 2.3 2.3 2.3 2.3 2.3

Nr. of fans - 2 2 2 3 3 3 3

Pump 400/3/50 [A] 3.1 3.1 3.1 3.8 3.8 5.0 5.0

Total 400/3/50 [A] 69.5 78.1 87.9 102.5 114.1 123.0 133.2

L.R.A. Locked rotor current

Compressor 1 400/3/50 [A] 198.0 130.0 130.0 175.0 175.0 175.0 198.0

Compressor 2 400/3/50 [A] 198.0 175.0 130.0 130.0 175.0 175.0 198.0

Compressor 3 400/3/50 [A] - 130.0 130.0 175.0 175.0 175.0 198.0

Compressor 4 400/3/50 [A] - - 130.0 130.0 175.0 175.0 198.0

External fan 400/3/50 [A] 4.7 4.7 4.7 4.7 4.7 4.7 4.7

Nr. of fans - 2 2 2 3 3 3 3

Pump 400/3/50 [A] 14.6 14.6 14.6 19.0 19.0 24.8 24.8

F.L.I. Full load power input at max admissible conditions

Compressor 1 400/3/50 [kW] 18.8 11.3 11.3 14.5 14.5 17.3 18.8

Compressor 2 400/3/50 [kW] 18.8 17.3 11.3 11.3 14.5 14.5 18.8

Compressor 3 400/3/50 [kW] - 11.3 11.3 14.5 14.5 17.3 18.8

Compressor 4 400/3/50 [kW] - - 11.3 11.3 14.5 14.5 18.8

External fan 400/3/50 [kW] 1.25 1.25 1.25 1.25 1.25 1.25 1.25

Nr. of fans - 2 2 2 3 3 3 3

Pump 400/3/50 [kW ] 1.1 1.1 1.1 1.5 1.5 1.9 1.9

Total 400/3/50 [kW] 41.9 44.2 49.5 57.5 63.9 69.9 81.5

Value 400/3/50 [A] 237.7 204.4 198.4 252.2 263.8 268.8 301.4

M.I.C. Max starting current

GENERAL

ALL THE EQUIPMENT MUST BE COMMISSIONED BY AUTHORISED SERVICE CENTRES.

THIS SERVICE IS LIMITED TO START-UP OF THE UNIT ONLY AND NOT THE CONNECTIONS OR INSTALLATION OF THE SYSTEM

PRELIMINARY CHECKS

BEFORE PERFORMING ANY TYPES OF CHECKS, MAKE SURE THAT THE UNIT IS PROPERLY INSTALLED AND CONNECTED

PRELIMINARY CHECKS: ELECTRICAL SYSTEM

CAUTION: Before performing the checks described below, make sure that the unit’s electrical power line is disconnected at the source. Check that the isolator device is padlocked or hat the handle has been applied with a special sign caution against operation. Before performing the electrical connections, check that no voltage is present using a voltmeter or phase indicator.

CHECKS TO BE PERFORMED WITH ELECTRICAL POWER DISCONNECTED:

- Check that the cross-section of the electrical power cables is suitable for the load of the entire unit (see the section on electrical connections in the manual).

- Check that the unit has been earthed (see the section on electrical connections in the manual).

-· Check that the screws that fasten the wires to the electrical components in the panel are tight, to ensure adequate electrical contact (during handling and transport vibrations may have loosened the screws).

At this point, the unit can be electrically powered by closing the isolator device installed upstream of the power line. CAUTION: Before performing this operation, check that all the cut-out devices on the unit have been reset.

- Place the handle of the unit’s mains isolator device / circuit-breaker in the on position.

- Check that the electronic board / display on the terminal turn on (after a few seconds)

- Check that the unit is off (see the section on "Control" in the manual)

CHECKS TO BE PERFORMED WITH ELECTRICAL POWER CONNECTED:

- Check the value of the mains voltage supplied to the unit, which must fall within the following limits: 230 +/- 6%, single-phase units 400 +/- 6%, three-phase units

-·Check the unbalance of the phases. This must be lower than a maximum value of 2% (see calculation example). Calculation example: L1 - L2 = 398 L2 - L3 = 405 L3 - L1 = 395 The average of the values measured is calculated as follows: (398+405+395)/3=399.3 The maximum deviation from the average is thus: 405-395=10V The unbalance is thus: (10/399.3) x 100 = 2.5% (non acceptable)

If compressor crankcase heaters are present, when starting the unit for the first time and after each extended shut-down, the heaters that heat the compressor crankcase oil should be operated for at least 8 hours before starting the compressor. CAUTION: IF THE CRANKCASE HEATERS ARE PRESENT, DO NOT START THE COMPRESSOR WITH THE CRANKCASE OIL BELOW OPERATING TEMPERATURE. (THE TEMPERATURE OF THE COMPRESSOR CASING ON THE LOWER SIDE MUST BE AT LEAST 10°C HIGHER THAN THE OUTSIDE TEMPERATURE).

The units are activated according to the phases described below: 1 - Close the circuit breakers or the isolating switch on the unit. 2 - The unit will not start operating until the operating mode is selected on the keypad, therefore, as seen in the diagram, the crankcase heater will be powered only for the time required to allow the compressor to reach the desired temperature.

Start-up

- START- UP -

PRELIMINARY CHECKS: REFRIGERANT CIRCUIT

- Visually check the refrigerant circuit. Any oil leaks may have been caused during transport.

- Check that the refrigerant circuits are pressurised (using the pressure gauges on the machine, or test pressure gauges).

Start-up

PRELIMINARY CHECKS: WATER SYSTEM

A = Expansion tank 12 Lt. B = Expansion tank 16 Lt. C = Expansion tank 18 Lt.

- Check that the water circuit has been filled and pressurised. The pressure value near the unit with the system off must be at least around 150KPa greater than atmospheric pressure. (If the unit is connected to a pumping unit, see the Pumping unit manual)

- Check that the water connections are correct (see the section on "Water connections")

- Check that there is no air in the circuit. If required, bleed it using the vent valves in the system.

- Check that the temperature of the fluid is less than or equal to the max value allowed according to the information provided in the "General" section under the heading "Operating limits".

- Check that the shut-off valves in the circuit are in the "OPEN" position.

- Check that the circulating pump is operating and that the flow-rate is at least sufficient to ensure that the WATER DIFFERENTIAL PRESSURE SWITCH or FLOW SWITCH are NOT activated

- Check that the weight of the water connections is suitably supported by the outside of the unit. There must be no stress on the exchanger connections.

N.B.: The water flow alarms are only measured if the control system requires the operation of the pump. When the unit is OFF, the alarm (no flow) is not shown. This can only be tested when the unit is started.

CHECKS ON SAFETY DEVICES, WATER SIDE (DIFFERENTIAL PRESSURE SWITCH / FLOW SWITCH)

Slowly close the ball valve installed downstream from the exchanger, until the pressure switch is activated and the unit shuts-down as a consequence. Open the ball valve again, and check that the unit is correctly enabled for operation.

NOTE: The checks on the differential pressure switch / flow switch safety devices must be carried out with extreme care, without ever completely cutting off the flow of water (risk of frost on the exchanger)

NITROGEN CUSHION SETTING IN THE EXPANSION VESSEL ACCORDING TO THE CAPACITY OF THE GLOBAL INTALLATION

200

400

600

800

100 0

120 0

140 0

1.5 2 2.5 3 3.5 4 4.5 5

bar

START-UP

After having carefully performed the operations described above, the unit can be started. Open all the taps in the refrigerant circuit (if present). Check the values of the various accessible parameters, referring to the "Control" section in this manual. Reset any alarms using the ON OFF / ALARM button.

CAUTION Scroll compressors rotate in one direction only. If it is reversed, the compressor will not be damaged, however noise will increase and pumping will be affected. After a few minutes the compressor will be shut-by the thermal cut-off device. In this case, disconnect power and reverse 2 phases on the power supply to the machine. Also check the correct direction of rotation of the fans (if present). Do not operate the compressor too long with reverse rotation. Starting it more than 2-3 times in this condition may damage it). To check that the direction of rotation is correct, simply measure the condensing and inlet pressures. The pressure must change quite noticeably. N.B.: The phase monitor is available as an option.

CLEANING THE IMPURITIES COLLECTOR The dirtying of the filter causes always the reduced flow-rate of the fluid and possible machine operating problems. When the unit is started for the first time, impurities in the system water may collect in the filter, causing the symptoms described above. Restore correct operation by cleaning the filter.

N.B.: The unit is fitted with a pressure switch that checks for the presence of water in the circuit, and enables the pump only if there is pressure in the circuit for a minimum safety time.

Turn the unit ON using the ON-OFF button (or switch). Press the MODE button to select COOLING OPERATION. Press the MODE button again to select HEATING OPERATION (heat pump only). The control system will enable the compressor to start after the pre-set safety times.

If the unit has more than one compressor, one will start after the pre-set safety times, and the others will start in sequence after the first.

ELECTRICAL CHECKS

- Check the power supply voltage, as described previously.

CHECKING THE COMPRESSOR DISCHARGE TEMPERATURE

For a correct analysis of the system, also check the compressor discharge temperature, which at the indicated superheating and subcooling values must be around 30/40 degrees higher than the condensing temperature.

- Check the power input of the compressor, referring to the electrical data table in the section on "Electrical connections".

- Check the power input of the fans, referring to the corresponding table in the section on "Electrical connections".

- Check the correct direction of rotation of the fans.

- Check, with the compressor off, the power input of the crankcase heaters (if present)

- After a short period of operation, check the oil level in each compressor (where the inspection glass is present) and the presence of bubbles in the liquid line.

- Check the unit’s operating pressure in running conditions, using the pressure gauges connected

- The low pressure must stabilise at a value corresponding to a saturated temperature of around 4-6°C below the exchanger outlet water temperature.

- The high pressure must stabilise at a value corresponding to a saturated temperature of around 15-20°C higher than exchanger coil inlet air temperature. These are typical values that are valid for standard operating conditions (flow-rate and water temperature, outside air temperature near rated conditions). N.B.: The saturated temperature is the temperature read on the pressure gauge corresponding to the pressure measured and the type of refrigerant

REFRIGERANT CIRCUIT CHECKS

- Perform a final check for refrigerant leaks on the tap fittings and pressure test points in the system.

Start-up

WATER SYSTEM CHECKS

WATER FLOW-RATE:

- Check that the difference between the water inlet and evaporator outlet temperature is related to the capacity, according to the formula : refrigeration capacity (kW) x 860 = Dt (°C) x flow-rate ( L/h ) The reference Dt is of 5°C with unit at full load; differences higher than ±1°C must be considered very carefully. The refrigeration capacity is defined in the tables on "Cooling Performance" in the TECHNICAL BULLETIN, according to:

- unit size

- condenser air inlet temperature

- evaporator fluid outlet temperature

N.B. THE WATER FLOW-RATE AT THE EXCHANGER MUST REMAIN CONSTANT, IRRESPECTIVE OF THE THERMAL LOAD AND THE UTILITIES CONNECTED

EVAPORATOR PRESSURE DROP: Determine the water flow-rate, as follows: Measure the existing pressure difference between the exchanger inlet and outlet, and calculate the flow-rate as shown under the section "Water/aeraulic connections" in the graph "Exchanger/evaporator pressure drop, water side" (the working point must not be off the graph). The pressure can be measured more easily by installing the pressure gauges "M" shown in the same section on the water connection diagram.

For units with built-in hydronic system (pump, expansion vessel, etc.), measure the existing pressure difference between unit inlet and outlet and calculate the flow-rate value as shown under the section "Water/aeraulic connections" in the graph "Selecting the pump based on the effective discharge head in the system".

Control

- CONTROL -

MAIN CONTROL MODULE KEYPAD

To switch the unit off, press and hold the ON/OFF button for a few seconds. The display will show the message UNIT OFF. To switch the unit on again, simply briefly press the ON/OFF button. NB: the various menus can also be accessed when the unit is OFF.

- ENTER BUTTON: confirms the data entered and resets the alarms

- MENU BUTTON: enters the various MENUS

- ARROW BUTTONS: move around the various MENUS

1.DAY DATE TIME

2. UNIT STATUS

3. OPERATING MODE

4. MEAN OUTLET TEMPERATURE

The figure shows the user interface panel present on the unit, with the description of the main screen.

MEANING OF THE BUTTONS

- PLUS BUTTON: increases the values entered

- MINUS BUTTON: decreases the values entered

- MODE BUTTON: used to set the operating mode

- ON/OFF/ALARM BUTTON: the button has three functions: unit on-off, display active alarms and access the alarm log menu. Functions when the unit is ON: Pressed briefly once: enters the list of active alarms. Pressed briefly twice: accesses the ALARM LOG menu. Pressing it briefly a third time returns to the main screen. When the unit is OFF: Pressed briefly once: switches the unit ON

UNIT ON/OFF

The presence of one or more alarms is signalled by the flashing of the LED on the ON-OFF button, as well as by the activation of the cumulative fault relay.

To display the details of which alarm is active, simply press the ON/OFF button briefly. The list of currently active alarms on the unit will be displayed.

ALARM DISPLAY

To reset the alarms, simply enter the alarm display screen and press the ENTER button. NB: some alarms are reset automatically as soon as the causes of the alarm no longer exist, while other alarms require a manual reset. In any case, the alarms can only be reset once the causes are no longer present.

ALARM RESET

Control

To access to the alarm log, go to the main screen, press the ON/OFF/ALARM button briefly twice. From the list of current alarms simply press the button once. The figure shows the alarm display screen.

ALARMS

1. TYPE OF ALARM

2. DATE OF THE EVENT

3. TIME OF THE EVENT

ALARM LOG

TYPE OF ALARM DISPLAYED

ALARM DESCRIPTION RESET AC TION

E1 - BT1 ALL Probe BT1 alarm Automatic Signal E2 - BT2 ALL Probe BT2 alarm Automatic Complete shutdown – Pump on E3 - BT3 ALL Probe BT3 alarm Automatic Complete shutdown – Pump on E4 - BT4 ALL Probe BT4 alarm Automatic Cooling = Signal

Heating = Shutdown circuit 1

E5 - BT5 ALL Probe BT5 alarm Automatic Cooling = Signal

Heating = Shutdown circuit 2 E6 - BP1 ALL Transducer BP1 alarm Automatic Shutdown circuit 1 E7 - BP2 ALL Transducer BP2 alarm Automatic Shutdown circuit2 E8 - TExt ALL Outside air probe alarm Automatic Inhibits the associated functions; sets a

defrost start time = TimeInDFR

E9 - WR ALL Water Reset probe alarm Automatic Inhibits WR compensation E10 - URex ALL Relative humidity probe alarm Automatic Inhibits the associated functions E11 - HP 1 ALL High pressure alarm, circuit 1 Manual Shutdown circuit 1 E12 - LP 1 ALL Low pressure alarm, circuit 1 Automatic Shutdown circuit 1 E13 - FAN 1 ALL Fan alarm circuit 1 Manual VentilType = 1 Shutdown circuit 1

VentilType = 0 Complete shutdown – Pump on

E14 - HP 2 ALL High pressure alarm, circuit 2 Manual Shutdown circuit 2

E15 - LP 2 ALL Low pressure alarm, circuit 2 Automatic Shutdown circuit 2

E16 - FAN 2 ALL Fan alarm circuit 2 Manual VentilType = 1 Shutdown circuit 2

VentilType = 0 Complete shutdown – Pump on

E17 - COMP1 ALL Compressor protection alarm 1 Manual Shutdown compressor 1 E18 - COMP2 ALL Compressor protection alarm 2 Manual Shutdown compressor 2 E19 - COMP3 ALL Compressor protection alarm 3 Manual Shutdown compressor 3 E20 - COMP4 ALL Compressor protection alarm 4 Manual Shutdown compressor 4 E21 – PWR ALL Phase monitor alarm Automatic Complete shutdown – Pump on E22 - FLW ALL Pump flow alarm Automatic Complete shutdown E23 – H2O ALL Water fill system alarm Manual Complete shutdown E24 – LWT ALL Antifreeze alarm Manual Complete shutdown – Pump on E25 – LWT PRE ALL Antifreeze pre-alarm Automatic Disable capacity-control steps (1 at a time) E26 - HP1 PRE ALL High pressure pre-alarm

(Activation at maximum speed)

Automatic HP1Enabled = 0 Alarm not managed

HP1Enabled = 1 Activates maximum fan speed.

(Acts on the individual circuit, but always

according to the parameter VentilType)

E27 - HP2 PRE ALL High pressure pre-alarm

(Deactivates one tandem compress.)

Automatic HP2Enabled = 0 Alarm not managed

HP2Enabled = 1 Disables 1 compressor in the

tandem circuit (Acts on the individual circuit)

E28 – DMDL ALL Demand Limit alarm Automatic Inhibits the associated functions E29 – PMP CHNG Change pump Automatic Pump change signal

In heat pump units the operating mode can be selected on the main interface module. The procedure for doing this is shown below. The procedure describes how to switch from COOLING to HEATING. To switch from HEATING to COOLING, perform the same procedure, but this time selecting COOLING. The screens (the second in the sequence) also show the presence of the ON-OFF-REM parameter, which is selected to switch the unit to STAND-BY mode. A free contact, provided by the customer, can be used to switch the unit ON/OFF, while a second free contact can be used to switch the operating mode from HEATING to COOLING and vice-versa. The selection of the operating mode, Heating or Cooling, from a remote digital input must be enabled using the corresponding parameter by service centres only.

WARNING: TO CHANGE FROM HEAT PUMP TO CHILLER OPERATION OR VICE-VERSA, SWITCH THE MACHINE OFF. WAIT FOR THE SYSTEM TEMPERATURE TO FALL WITHIN THE LIMITS INDICATED IN THE BULLETIN

SELECTING THE OPERATING MODE

1. Unit in COOLING mode

2. Position the cursor at the HEATING parameter

3. Cursor on HEATING

4. After pressing the ARROW button the main screen is displayed. The unit is now in HEATING mode.

Control

The flow chart shown provides an example of the procedure for accessing the SET POINT parameters. This starts from the main screen and ends again at the main screen when the procedure is complete. The example assumes that the unit is a heat pump, and thus describes both the COOLING SET POINT and the HEATING SET POINT.

SETTING THE WORKING SET POINT

SETTING THE ANTIFREEZE SET POINT

The ANTIFREEZE SET POINT parameter is preset by the manufacturer. The antifreeze alarm setting is performed in the same way as described for setting the working set point, with the exception that the parameter "ALFREEZE" must be set.

1. Cooling set point

2. Heating set point

Control

SETTING THE SECOND SET POINT FOR HEATING AND COOLING

A second set point, for both COOLING and HEATING operation, can be enabled by digital input.

This function, unless requested when ordering, must first be enabled by an authorised CLIVET service centre. If the function is enabled, the sequence shown illustrates the phases to be followed for entering the desired set point values. The closing of the remote contact is used to switch from the normal working set point to the second set point.

1. Configuration menu

2. Parameter setting menu

3. H2O SYSTEM board menu

4. Second cooling set point

5. Second heating set point

Control

SETTING THE MAINTENANCE SET POINT

A maintenance SET POINT can be enabled for both COOLING and HEATING mode. This function, unless requested when ordering, must first be enabled by an authorised CLIVET service centre. If the function is enabled, the sequence shown illustrates the phases to be followed for entering the desired set point values. In addition, the maximum number of compressors enabled to operate during the maintenance phase can also be set. Purpose of the function: the unit, when switched OFF, remains active but in standby status. At preset intervals, the water pump is activated (for a set time), so as to allow the temperature of chilled fluid to be measured. If the temperature is considered potentially near the unit’s operating limits, the unit starts again so as to move the value ways from such limits.

1. Configuration menu

2. Parameter setting menu

3. H2O SYSTEM board menu

4. Cooling maintenance set point

5. Heating maintenance set point

Control

SETTING THE CLOCK

The control board is fitted as standard with the clock function. The sequence shown illustrates the phases to be followed for the correct setting of all the parameters (hours, minutes, seconds, weekday, day of the month, month, year). Important: remember to confirm the data entered by selecting the "MEM" parameter.

1. Clock menu

2. Clock setting menu

3. Hour setting

4. Minute setting

5. Second setting

6. Weekday setting

7. Day of the month setting

8. Month setting

9. Year setting

10. Confirm the data entered

Control

As well as the unit ON/OFF time bands, the HEAT and COOL SET POINT values can also be changed throughout the day. A maximum of 4 events can be set for each weekday. The information that needs to be set is the time (time to start a new band and end the previous one) and the desired temperature. To enable the function, set the parameter SetClckEnH to On (for HEATING operation). To enable the function, set the parameter SetClckEnC to On (for COOLING operation).

SWITCHING ON AND OFF FROM TIME BANDS

The microprocessor offers the possibility to enter time bands for switching the unit ON or OFF. A maximum of 14 events can be set for each weekday.

The information that needs to be set is the time (time to start a new band and end the previous one) and the status (ON or OFF). To enable the Time band function, set the parameter EnableTZ to On. After having set all the time bands, remember to enable the MEMORY function. The procedure described can be performed simply by following the flow chart shown.

1. Clock menu

2. Time band ON/OFF menu

3. To enable the function set the value "ON"

4. Weekday

5. Band no.1

6. From time...

7. Unit ON

8. Band no.2

9. Unit OFF

10. Confirm the settings by selecting this par

CHANGING THE SET POINT FROM TIME BANDS

Control

1. Cooling set point

2. Heating set point

3. To enable the function set the value "ON"

4. Weekday (Monday)

5. Weekday (Tuesday)

6. Weekday (Wednesday)

7. Weekday (Thursday)

8. Weekday (Friday)

9. Weekday (Saturday)

10. Weekday (Sunday)

11. Band no. 1

12. From time....

13. New set point value

14. Band no. 2

15. Band no. 3

16. Band no. 4

17. Confirm the settings by selecting this parameter

After having set all the time bands, confirm the data entered using the "MEM" parameter. The procedure described can be performed simply by following the flow chart shown.

(17)

Men

TOutAV 38.0°C

Mode Heat

Unit ON

Mon 11-04-2002 10:12:37

CLCK

STATUS

CONFIG

Mon 11-04-2002 10:12:37

SET COOL

TM SET

SET HEAT

SET ON-OFF

CK 2

Gio 11-04-2002 10:12:37

CK 3

Set H 35.0°C

TM 12.00

Set H 38.0°C

TM 15.00

CK 4

MEM

Set H 32.0°C

TM 20.00

Set H 30.0°C

TM 08.00

CK 1

WED

TUE

MON

THU

SetClckEnH On

SUN

SAT

FRI

Mon 11-04-2002 10:12:37

Set C 07.0°C

TM 05.00

CK 1

CK 2

Gio 11-04-2002 10:12:37

CK 3

Set C 08.0°C

TM 10.00

Set C 10.0°C

TM 13.00

CK 4

MEM

Set C 06.0°C

TM 22.00

WED

TUE

MON

THU

SetClckEnC On

SUN

SAT

FRI

Mon 11-04-2002 10:12:37

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(12)

(13)

(15)

(12)

(13)

(16)

(12)

(13)

(1)

(2)

Control

1. Configuration Menu

2. Parameter Menu

3. Counter Menu

4. Compressor 1 operating hours

5. Compressor 1 starts

6. Compressor 2 operating hours

7. Compressor 2 starts

8. Compressor 3 operating hours

9. Compressor 3 starts

10. Compressor 4 operating hours

11. Compressor 4 starts

12. Pump 1 operating hours

13. Pump 2 operating hours

COUNTER DISPLAY

The operating hours and starts corresponding to each compressor installed on the unit can be checked. The operating hours of the pumps can be displayed. The procedure for accessing these values is described in the flow chart.

Control

LAYOUT OF THE MAIN MODULE

The layout of the main board is shown for easy identification of the inputs and outputs.

7473

7271

6 1

6 2

6 3

6 4

6 5

6 6

6 7

6 8

6 9

7 0

6 0 A

6 1 A

6 2 A

6 3 A

6 4 A

6 5 A

6 6 A

6 7 A

6 8 A

6 9 A

7 0 A

5 4

5 5

5 6

5 7

5 8

5 9

5 0

5 1

5 2

5 3

6 0

gnd

+12V

gnd

AO1

AO2

AO3

AO4

AO5

AI1

AI2

AI3

AI4

AI5

AI6

AI7

AI8

AI9

AI10

AI11

4 6

4 7

4 8

4 9

4 3

4 4

4 5

+ +

gnd

424140393837363534333231302928272625242322

21201918171615

16DI15DI14

13DI12DI11

DI DI

98DI7DI6DI5

DI4DI3DI2DI DI

DO11

DO10DO

1413121110987654321

Control

READING THE OPERATING STATUS

The status of the inputs and outputs on the main control module can be monitored. The sequence for accessing this menu is shown.

The paragraph on "Digital inputs" provides a more detailed description of the last 5 items.

Control

Out_D_1:

1. Relay energised

2. Relay de-energised

3. Not used

4. Reverse cycle valve circuit 2 (DO-4)

5. Compressor 2 (DO-3)

6. Reverse cycle valve circuit 1 (DO-2)

7. Compressor 1 (DO-1)

8. Compressor 4 (DO-8)

9. Compressor 3 (DO-7)

10. Antifreeze heater (DO-6)

1. Status menu

2. Date and time

3. Current set point

4. Outside Temperature Compensation Value

5. Water Reset Compensation Value

6. Load Compensation Value

7. Exchanger inlet temperature

8. Exchanger 1 outlet temperature

9. Exchanger 2 outlet temperature

10. Condensing temperature circuit 1

11. Condensing temperature circuit 2

12. Condensing pressure circuit 1

13. Condensing pressure circuit 2

14. Demand Limit signal value

15. Water Reset signal value

16. Outside air temperature

17. Outside air relative humidity

18. Outside air specific humidity

19. Status of compressor 1

20. Status of compressor 2

21. Status of compressor 3

22. Status of compressor 4

23. Circuit 1 Defrost

24. Circuit 2 Defrost

25. Fan output % value Circuit 1

26. Fan output % value Circuit 2

27. Status of digital inputs 1 (see par. "Digital inputs")

28. Status of digital inputs 2 (see par. "Digital inputs")

29. Status of digital outputs 1 (see par. "Digital outputs")

30. Status of digital outputs 2 (see par. "Digital outputs")

31. Status of plug in digital outputs (see par. "Digital outputs")

DIGITAL INPUTS

Correspondence between position and digital input in the status indication row IN_DI_1

(3)

In Di 1

(1)

(2)

(4) (5) (6) (7) (8) (9) (10)

In Di 1:

1. Contact closed

2. Contact open

3. Flow switch (DI-12)

4. Alarm compressor 3 (DI-11)

5. Fan overload circuit 2 (DI-10)

6. Overload compressor 2 (DI-9)

7. Low pressure circuit 2 (DI-8)

8. High pressure circuit 2 (DI-7)

9. Fan overload circuit 1 (DI-6)

10. Overload compressor 1 (DI-5)

Correspondence between position and digital input in the status indication row IN_DI_2

Correspondence between the position and the digital output in the status indication row OUT_D_1

In Di 2

(1)

(2)

(3) (4) (5) (6) (7) (8) (9) (10)

In Di 2:

1. Contact closed

2. Contact open

3. Water fill system (DI-16)

4. Second set point (DI-15)

5. Overload compressor 4 (DI-14)

6. Phase monitor (DI-13)

7. Remote ON-OFF (DI-1)

8. Remote HEAT-COOL (DI-2)

9. High pressure circuit 1 (DI-3)

10. Low pressure circuit 1 (DI-4)

DIGITAL OUTPUTS

Out_D_1

(1)

(2)

(3)

(5) (6) (7) (8) (9) (10)

(4)

Out_D_2:

1. Relay energised

2. Relay de-energised

3. Pump 1 (DO-5)

4. Status of compressor 1 (DO-10)

5. Status of compressor 2 (DO-9)

6. Cumulative fault alarm (DO-11)

7. Not used

Correspondence between the position and the digital output in the status indication row OUT_D_2

Out_D_2

(1)

(2)

(3)

(5) (6) (7) (7) (7) (7)

(4)

Control

Out_D_PLUG-IN:

1. Relay energised

2. Relay de-energised

3. Not used

4. Pump 2 (DO-12)

5. Fans, circuit 1 (DO-13)

6. Fans, circuit 2 (DO-14)

Correspondence between the position and the digital output in the status indication row OUT_D_PLUG-IN (only if present)

Out_D_PLUG-IN

(1)

(2)

(3) (3) (3) (4) (5) (6) (3)

(3)

DEMAND LIMIT

The microprocessor offers the possibility of limiting the capacity to be delivered to the system for the purpose of limiting the power input of the unit. This function is very useful in installations where there are power supply problems. The limiting applied depends on a 0-10Vdc signal provided by the customer. The number of compressors available to the unit to satisfy the demand is determined based on this signal. The higher the value of the signal, the less capacity will be available to the system, as shown in the graphs. NOTE: when there is a variation in the 0-10Vdc signal, to prevent unwanted and continuous changes in the number of resources available to the thermoregulator, a delay time is counted in which the signal must remain stable above the step activation or deactivation threshold, before modifying the percentage of capacity available to the system. This function must be enabled by an authorised Clivet service centre or by Clivet directly.

UNITS WITH 4 COMPRESSORS:

A. 0-10Vdc signal B. Capacity delivered

1. 1 compressor available

2. 2 compressors available

3. 3 compressors available

4. 4 compressors available

(A)

(B)

2.5 5.0 7.5 10.0

(1)

(2)

(3)

(4)

3.5

7.0 10.0

(A)

(B)

(1)

(2)

(3)

UNITS WITH 3 COMPRESSORS:

A. 0-10Vdc signal B. Capacity delivered

1. 1 compressor available

2. 2 compressors available

3. 3 compressors available

UNITS WITH 2 COMPRESSORS:

A. 0-10Vdc signal B. Capacity delivered

1. 1 compressor available

2. 2 compressors available

5.0

10.0

(A)

(B)

(1)

(2)

ANTIFREEZE THERMOREGULATOR

The function of the antifreeze thermoregulator is to prevent frosting on the exchanger and control, if necessary, the antifreeze heaters. The thermoregulator has a set point value that determines the activation of the antifreeze alarm, in which condition the compressor stops, while the pump continues to operate. The ANTIFREEZE SET POINT can be modified only when non-freezing solutions are used.

The antifreeze thermoregulator is active even when the unit is switched OFF from the panel or the remote contact.

Control

ANTIFREEZE PRE-ALARM THERMOREGULATOR

The antifreeze pre-alarm function is active in all operating modes. The purpose of the function is to prevent the evaporator outlet water temperature from falling too low, and thus causing the unit to shut-down due to the antifreeze alarm. The function acts as follows: if the evaporator outlet temperature is less than or equal to the pre-alarm threshold, one compressor capacity-control step is deactivated, according to the compressor rotation requirements. If the temperature is still lower than the pre-alarm threshold, a further capacity-control step is deactivated. The same compressors or steps can only be reactivated by the thermoregulator if the outlet temperature has risen over the threshold by a value set in the factory.

HIGH PRESSURE ALARM PREVENTION

For the purpose of preventing the unit from shutting down due to a high pressure alarm, a function has been implemented to avoid this phenomenon. The thermoregulator, using the pressure transducers, continuously controls the condensing pressures; when the controlled value exceeds a pre-set threshold, the thermoregulator forces the fans to maximum speed, so as to lower the condensing pressures. If this action is not sufficient and the pressure continues to rise, when exceeding another threshold, the thermoregulator, as well as forcing the fans to maximum speed, also switches off one of the tandem compressors.

FLUID THERMOREGULATOR

The thermoregulator operates so as to maintain the temperature of the fluid at the plate exchanger outlet as near as possible to the SET POINT (COOLING/HEATING) value. The thermoregulator can activate one and only one step at a time, and only after the activation scan time has expired. No steps can be activated at any other time. The activation scan time is not fixed, but rather varies according to the difference between the water outlet temperature and the current set point value. The higher the temperature difference (either positive or negative), the shorter the interval between the scan points. The water outlet probe is used in this case.

IN COOLING MODE The thermoregulator will tend to deactivate capacity-control steps when the outlet water temperature falls below the Current Set Point value. Vice-versa, it will tend to activate capacity-control steps when the outlet temperature exceeds the sum of Current Set Point and the theoretical temperature difference between the water inlet and outlet due to one single capacity-control step.

IN HEATING MODE The thermoregulator will tend to deactivate capacity-control steps when the outlet water temperature rises above the Current Set Point value. Vice-versa, it will tend to activate capacity-control steps when the outlet temperature falls below the sum of Current Set Point and the theoretical temperature difference between the water inlet and outlet due to one single capacity-control step.

CIRCULATING PUMP MANAGEMENT

When the unit is started, or switched to remote ON, the pump is started first, and the operation of the compressor is enabled only after the scan time. The flow alarms are ignored for the first 20 seconds from when the pump starts. In this way, the pump has time to reach stable fluid flow conditions, thus avoiding the formation of bubbles. In the event where the unit is switched off remotely, the compressor and the fans will stop, while the pump stays on for 120 seconds.

COIL FAN CONTROLLER

The controller operates so as to maintain the condensing/evaporation temperature as constant as possible upon changes in the unit's operating conditions, by suitably varying the operation of the fans: in summer operation, the speed increases as the outside air temperature increases, and vice-versa in winter operation.

COMPRESSOR ROTATION

As well as the optimum control of the fluid temperature, the processor also controls other functions for the correct management of the overall operation of the unit. This is the case, for example, of compressor rotation. The compressor rotation function is enabled by setting the corresponding parameters. The thermoregulator then compares the operating hours and starts of each compressor. Each parameter is weighted (for example: operating hours 70%, compressor starts 30%). This means that when the thermoregulator calls the operation of a compressor, the first compressor that starts will be the one that, considering the starts and number of operating hours, has worked less. This function avoids having compressors with significant differences in the amount of wear. The unit is supplied by the manufacturer with rotation enabled.

FLOW ALARM MANAGEMENT

The flow alarm refers to the shut down of the unit due to the activation of one of the devices present in the line of flow; differential pressure switch, flow switch. The operating logic of this alarm is summarised as follows: a) If the pump is off, the flow alarm is not detected (the compressor cannot operate in any case). b) For a few seconds from the start of the pump, the flow alarm is not detected, thus allowing the pump time to bring the system to stable operating conditions. c) When the remote OFF command is received, the flow alarm is disabled. d) If a flow control device is activated, when reset, the corresponding contact must stay closed continuously for around 5 sec. for the alarm to be reset.

Control

CONNECTING THE UNIT TO SUPERVISORY SYSTEMS

The H2OSYSTEM control module is fitted, as standard, with an RS485 serial communication port. It can thus communicate with the outside world using a standard MODBUS protocol. The RS485 serial port is located on the main board, and is made up of a series of three terminals marked 43(-), 44(+) and 45(GND). These can be connected in a network, up to a maximum of 127 units. Each unit will have a unique network address. This address is saved under the parameter ADDRESS in the CONFIGURATION menu. The communication from and to the outside world follows a master – slave arrangement, with the supervisor acting as the master that periodically queries the various control modules connected. The control modules respond to the queries by sending the requested data, or alternatively by performing the command received.

THE CONTROL MODULE CAN SEND THE FOLLOWING DATA TO THE SUPERVISOR:

- The readings from all the temperature, humidity, pressure probes, etc.

- The unit operating mode

- Alarms

- The status of the digital outputs and inputs

THE CONTROL MODULE CAN RECEIVE THE FOLLOWING DATA FROM THE SUPERVISOR:

- New parameter settings

- ON-OFF commands

- Operating mode commands

3 1

4 3

4 4

4 5

4 8

4 7

4 6

5 0

4 9

G N D

2 4 V

T T L

R S 4 8 5

3 8

4 1

4 2

4 0

3 9

3 6

3 7

3 5

3 4

3 2

3 0

2 9

RS485 SERIAL CONNECTION DIAGRAM ON THE CONTROL MODULE

MAIN CONTROL MODULE BOARD

1. To supervisory system

2. RS485 seial port terminal

3. Jumper JP1 - RS485 network termination: Insert jumper on the units at the end of the serial line

4. Jumper JP2 - Enable RS485 serial port: Insert jumper on the units to be connected to the supervisor

Control

SERIAL CONNECTION DIAGRAM TO THE SUPERVISORY SYSTEM

GND

24V

TTL

RS485

24V

GND

TTL

RS485

24V

GND

RS485

TTL

24V

GND

RS485

TTL

(2)

(3)

GND GND GND GND

GND

Address # 1 Address # 2

Address # n Address # 127

(4)

(6) (6) (6)

(5)

(1)

(6)

1. System supervisor. Software to be provided by customer

2. RS485/RS232 converter

3. Shield

4. RS485 serial line. ModBus protocol. Twisted pair + shield

5. Insert Jumper JP1 as the line termination at both ends of the serial line.

6. Jumper JP3 must be inserted

ATTENTION:

- Do not earth the shield.

- When laying the serial cable, make sure it is as far apart as possible from other cables.

- Avoid laying the serial cable near appliances that may give rise to electromagnetic disturbance.

- Avoid laying the serial cable parallel to other cables; any intersections should be at right angles. Maximum length of the serial line 1000m

Control

COMMUNICATION PROTOCOL

The ModBus communication protocol is used. All the data contained in the H2OSYSTEM control module are organised into words, where the significant part is only LO. Only the following functions are envisaged:

- 04 (reading of single register at 16 bits)

- 06 (writing of single register at 16 bits). The command syntax is as follows:

Command syntax for writing to the H2OSYSTEM control module, by the supervisor:

The H2OSYSTEM control module responds with the echo of the write request, with the following syntax:

Note that this response is simply the echo of what the module receives. The echo returns only after the module has effectively assigned the data; however, to be certain that the data has been saved correctly, the variable must be read.

Command syntax for reading from the H2OSYSTEM control module, by the supervisor:

Syntax of the H2OSYSTEM module response to the read request:

CHARACTERISTICS

- Baud rate: 4800

- Format: 1 start bit, 8 data bits, 1 stop bit, no parity

- CRC: 16 bits for checking correct tx/rx

- Minimum access time to the bus: 100 milliseconds

- Maximum response waiting time: 500 milliseconds

GENERATING THE CRC Step 1: Load the CRC register, at 16 bits, with the hexadecimal value 0xFFFF Step 2: perform an exclusive OR between the first 8 bits of the message and the least significant byte of the CRC register. Enter the resulting value in the CRC register. Step 3: Shift the CRC register one bit to the right, then take out and check the carry. Step 4: if carry=0, repeat step 3. If carry=1, perform an exclusive OR on the CRC register with the hexadecimal value 0xA001. Step 5: repeat steps 3 and 4 until all 8 bits have been shifted and processed. Step 6: repeat steps 2 to 5, until the end of the message byte, excluding the CRC. Step 7: the CRC register now contains the value of the CRC. NOTE: the CRC is sent with the message with the order of the two bytes reversed. The least significant byte is sent first and the most significant byte second.

DETAILS. Reading:

- All the variables can be accessed for reading. Writing:

- The writing of the variables is controlled through different levels of password. MAINTENANCE access (password level =0) No password required Maintenance technician access The maintenance password must be entered (password level =1) Manufacturer access The manufacturer password must be entered (password level =2)

NB: The password, and the levels of accessibility for writing, are the same managed from the local and/or remote keypad.

Unit Address function Variable address Value

Echo 0xn 0x6 HI LO HI LO LO HI

1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte

CRC

Unit Address function Variable address Number of points

read 0xn 0x4 HI LO HI (0x0) LO (0x1) LO HI

1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte

CRC

Unit Address function Response byte number Valore

response 0xn 0x4 0x2 HI LO LO HI

1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte

CRC

Unit Address function Variable address Value

Write 0xn 0x6 HI LO HI LO LO HI

1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte

CRC

NOTE: All the variables are expressed as integers. Refer to the section of the manual that describes the parameters for information on the units of measure, limits etc. All the variable values that feature a decimal point must be divided by 10. E.G:

- air intake temperature reading

- returned value = 210, correct value = 21.0°C

Control

LIST OF VARIABLES

NB:

When writing the alarm reset password to the address 0xBB02, all the alarms on the unit, if the causes are no longer present, will be reset.

PASSWORD LOGICAL AREA (0xBB)

WRITE

Function Description HI LO 06(write) 0xBB 0x00 Level 1 password (Maintenance)

0x01 Level 2 password (Manufacturer) 0x02 Manual alarm reset password

Address

UNIT STATUS LOGICAL AREA (0x00)

READ (no password required) Function DESCRIPTION VALUE function HI LO

04 (read) 0x0 0x00 Status of the digital outputs (Bit Map) See digital OUT Bit map 0x01 Status of the digital input (Bit Map) See digital IN Bit map 0x02 Status of analogue output AO5 (term. 58-59) 0=0% - 255=100% 0x03 Status of analogue output AO3 (term. 54-55) 0=0% - 255=100% 0x04 Status of analogue output AO4 (term. 56-57) 0=0% - 255=100% 0x05 Status of fan output control circ. 1 (PWM) 0% – 100% 0x06 Status of fan output control circ. 2 (PWM) 0% – 100% 0x07 Inlet temperature probe °C (divide by 10) 0x08 Outlet temperature probe 1 °C (divide by 10) 0x09 Outlet temperature probe 2 °C (divide by 10) 0x0A Coil temperature probe circuit 1 °C (divide by 10) 0x0B Coil temperature probe circuit 2 °C (divide by 10) 0x0C Demand Limit transducer Volt (divide by 10) 0x0D Water Reset transducer 4 – 20 mA 0x0E Outside temperature transducer Parameter limits 0x0F Pressure transducer circuit 1 Bar (divide by 10) 0x10 Pressure transducer circuit 2 Bar (divide by 10) 0x11 Alarm status (Bit Map) See alarm bit map 1 0x12 Alarm status (Bit Map) See alarm bit map 2 0x13 Operating mode command (see table) -

0x14 Read operating mode

Bit 0= 1: Bit 1= 1: Heat (from Dig.In.) Bit 2= 1: Remote On (from Dig.In.) Bit 3= 1: Cool (from Dig.In.) Bit 4= 1: Bit 5= 1: Bit 6= 1: Local On from keypad Bit 7= 1: Remote On from keypad

0x15 Operating status

Bit 0= 1: cooling Bit 1= 1: heating

0x16 Compressor 4 status

Bit 0= 1: Timers active Bit 1= 1: Compressor On

0x17 Compressor 1 status

Bit 0= 1: Timers active Bit 1= 1: Compressor On Bit 2= 1: -Bit 3= 1: Defrost ON Bit 4= 1: Counting defrost

0x18 Compressor 2 status

Bit 0= 1: Timers active Bit 1= 1: Compressor On Bit 2= 1: -Bit 3= 1: Defrost ON Bit 4= 1: Counting defrost

0x19 Compressor 3 status

Bit 0= 1: Timers active

Bit 1= 1: Compressor On 0x1A Alarm status (Bit Map) See alarm bit map 3 0x1B Outside relative humidity transducer 10% – 90%

0x1C

Status of Plug-In module digital outputs (Bit Map)

see Expans. OUT bit map

0x1D Status of analogue output AO6 (term. 92-93) 0=0% - 255=100% 0x1E Status of analogue output AO7 (term. 94-95) 0=0% - 255=100%

ADDRESS

Control

IMPORTANT: USING THE OPERATING MODE COMMAND.

No incongruities should arise when sending operating mode requests to the unit, as such incongruities may lead to malfunctions.

The table below shows the possible commands (do not use other codes in addition to those listed):

NOTE: With the exception of the “Switch unit off (as per On/Off button)” command, all the other commands are disabled if the RemMode parameter =1. (Enable remote digital commands).

function HI LO DESCRIPTION VALUE

06(write) 0x0 0x13 Operating mode command

Bit 0= 1: Test Bit 1= 1: Heat Bit 2= 1: On (remote) 0= Off Bit 3= 1: Cool Bit 4= 1: -Bit 5= 1: -Bit 6= 1: On (local) 0= Off Bit 7= 1: --

UNIT STATUS LOGICAL AREA (0x00) WRITE

Bit →

7 6 5 4 3 2 1 0 Value sent

Weight →

128 64 32 16 8 4 2 1

Controls ↓

Switch unit on and/or switch to Test mode 0

0 0 0

1 69 (0x45)

Switch unit on and/or switch to Heat mode 0

0 0 0

4 2

70 (0x46)

Switch unit on and/or switch to Cool mode 0

0 0

8 4

0 0

76 (0x4C)

Switch unit off (as per On/Off button) 0 0 0 0 0

0 0

4 (0x04)

Switch unit off (as per digital input) 0

0 0 0 0 0 0

64 (0x40)

DIGITAL OUT BIT MAP

Bit = 0: Relay de-energised - Bit = 1: Relay energised

Bit no. Alarm description

0 Antifreeze heater 1 Compressor 3 2 Compressor 4 3 Compressor 1 4 Reverse cycle valve circuit 1 5 Compressor 2 6 Reverse cycle valve circuit 2 7 8 9 10 11 12 Cumulative fault relay 13 Status 2 14 Status 1 15 Pump 1

PROCESS VARIABLE LOGICAL AREA (0x05)

READ (no password required) Function DESCRIPTION VALUE function HI LO

04 (read) 0x05 0x00 Current set point °C (divide by 10)

0x01 Scan time seconds 0x02 Water Reset Compensation °C (divide by 10) 0x03 Load Compensation °C (divide by 10) 0x04 Outside T Compensation °C (divide by 10) 0x05 Start defrost counter 1 Seconds 0x06 Start defrost counter 2 Seconds 0x07 Stop defrost counter 1 Seconds 0x08 Stop defrost counter 2 Seconds 0x09 Specific humidity g/kg 0x0A Average outlet T °C (divide by 10) 0x0B Outside enthalpy

ADDRESS

Control

Bit = 0: No alarm - Bit = 1: Alarm present

DIGITAL OUT BIT MAP, PLUG-IN EXPANSION BOARD

Bit = 0: Relay de-energised - Bit = 1: Relay energised

Bit no. Alarm description

0 1 Fans, circuit 2 (DO14) 2 Fans, circuit 1 (DO13) 3 Pump 2 (DO12) 4 5 6 7 8 9 10 11 12 13 14 15 -

DIGITAL IN BIT MAP

Bit = 0: Circuit open - Bit = 1: Circuit closed

Bit no. Alarm description

0 Compressor 1 protection devices 1 Fan safety or water flow devices, circuit 1 2 High pressure circuit 2 3 Low pressure circuit 2 4 Compressor 2 protection devices 5 Fan safety or water flow devices, circuit 2 6 Compressor 3 protection devices 7 Flow alarm 8 Low pressure circuit 1 9 High pressure circuit 1 10 Remote Heat / Cool 11 Remote ON / OFF 12 Phase monitor 13 Compressor 4 protection devices 14 Night-time set point 15 System filled

ALARM BIT MAP 1

Bit no. Alarm description Reset

0 High pressure circuit 1 Manual 1 Low pressure circuit 1 Automatic with max. limit 2 Compressor 1 safety devices Manual 3 Water flow circuit 1 Automatic 4 Water flow circuit 2 Automatic 5 High pressure circuit 2 Manual 6 Low pressure circuit 2 Automatic with max. limit 7 Compressor 2 safety devices Manual 8 Fan safety devices circuit 1 Manual 9 Fan safety devices circuit 2 Manual 10 Compressor 3 safety devices Manual 11 Compressor 4 safety devices Manual 12 Pump flow alarm Automatic 13 Low outlet temperature alarm Automatic 14 Serial fault -15 System filled alarm Manual

Control

NOTE: any of the parameters relating to the software that controls the unit can be monitored and modified. If the variables that are accessible without requiring the password (password level "0") are insufficient, contact the Clivet service centre, which will provide all the necessary information.

Bit = 0: No alarm - Bit = 1: Alarm present

ALARM BIT MAP 2

Bit = 0: No alarm - Bit = 1: Alarm present

ALARM BIT MAP 3

Bit no. Alarm description Reset

0 Phase monitor Manual 1 High pressure pre-alarm circuit 1 Automatic 2 High pressure pre-alarm circuit 2 Automatic

PARAMETER LOGICAL AREA (0xAA)

READ WRITE

Function Description Abbreviation Password level HI LO 04(Read) 06(write) 0xAA 0x07 Second cooling set point SecondSetC 0

0x08 Second heating set point SecondSetH 0 0x31 Heater activation set point SetHeater 0 0x50 Set point maintenance in Cooling SetMantCool 0 0x51 Antifreeze alarm AllFreeze 0 0x52 Cooling set point SetCool 0 0x53 Heating set point SetHeat 0 0x55 Set point maintenance in Heating SetMantHeat 0 0x65 Compressor 1 hours 0 0x66 Compressor 2 hours 0 0x67 Compressor 3 hours 0 0x68 Compressor 1 starts 0 0x69 Compressor 2 starts 0 0x6A Compressor 3 starts 0 0x89 Compressor 4 starts 0 0x8A Compressor 4 hours 0 0x8B Pump 1 hours 0 0x8C Pump 2 hours 0 0x8D Maximum ventilation pre-alarm set point in

Cooling

SMaxPreC 0

Address

Bit no. Alarm description Reset

0 Inlet temperature probe fault Automatic 1 Outlet temperature probe 1 fault Automatic 2 Outlet temperature probe 2 fault Automatic 3 Coil temperature probe circuit 2 fault Automatic 4 Coil temperature probe circuit 3 fault Automatic 5 Demand Limit probe fault Automatic 6 Water Reset probe fault Automatic 7 Outside temperature transducer fault Automatic 8 Pressure probe fault circuit 2 Automatic 9 Pressure probe fault circuit 1 Automatic 10 Outside RH% probe fault Automatic 11 - 12 - 13 - 14 - 15 -

GENERAL

- ROUTINE MAINTENANCE -

IMPORTANT

AUTHORISED PERSONNEL SHOULD BE PRESENT WHEN THE UNIT IS STARTED FOR THE FIRST TIME EACH SEASON, SO AS TO PERFORM THE CHECKS DESCRIBED ABOVE, AS WELL AS THE CHECKS ON THE REFRIGERANT CIRCUIT, AS DESCRIBED IN THE SECT. ON "START-UP"

IMPORTANT

BEFORE STARTING ANY MAINTENANCE OR CLEANING OPERATIONS ON THE UNIT, MAKE SURE IT IS NOT POWERED

Few operations performed carefully and regularly may avoid the need for special maintenance.

This section is designed for the end user, and is extremely important for the correct operation of the unit over time. The operations to be performed do not require specific technical knowledge and regard simple checks on the components of the unit.

The coil must be able to offer the maximum heat exchange: check its surface to make sure it is free from dirt or dust. Use a brush to remove all impurities. Check that the aluminium fins are not damaged or bent; if this is the case, "comb" the coil until using a special tool so as to restore the initial situation of optimum air flow. Use a jet of pressurised air to clean the aluminium surface of the coil, making sure to point the jet in the opposite direction to the movement of the fan. Keep the jet parallel to the direction of the fins, so as not to damage them. Alternatively use a vacuum cleaner to vacuum up the impurities from the air inlet side.

Visually check that there are no leaks in the water circuit. Contact specialist personnel in the event where maintenance is required.

If the unit is not operated in the winter season and exposed to temperatures below 0°C, make sure the water is completely emptied from the system (only in the event where antifreeze fluids are not used).

Dirt and the possible formation of lime scale inside the exchanger may cause malfunctions in the refrigerant circuit: have specialist personnel periodically check the efficiency of heat exchange and, if necessary, clean using suitable chemical products.

Check the condition of the parts making up the structure.

Special attention should be paid to the steel parts. Paint so as to eliminate or reduce oxidation at the points in the unit where this problem may occur. Check that the panelling is fastened correctly. Poor fastening may give rise to malfunctions and abnormal noise and vibrations. Check the condition of any gaskets.

Periodically have the tightness of the electrical contacts checked by a qualified technician.

ROUTINE MAINTENANCE

STRUCTURE

ELECTRICAL SYSTEM

WATER SYSTEM

EXCHANGE COIL

WATER EXCHANGER

Routine Maintenance

REFRIGERANTS

The table shows the saturated condensing and evaporation temperatures according to the pressure.

Routine Maintenance

REFRIGERANT TABLES

LBS - R.F.

R-22 R-134a R-407C R-22 R-134a

P (bar) Ts (°C) Ts (°C) Te (°C) Tc (°C) Td Tb P (bar) Ts (°C) Ts (°C) Te (°C) Tc (°C) Td Tb

0.0

-40.89 -26.22 -39.43 -40.53 -36.97 -44.10

6.1

11.44 27.39 11.13 10.03 13.10 6.96

0.1

-38.95 -24.24 -37.56 -38.66 -35.10 -42.21

6.2

11.91 27.87 11.58 10.48 13.54 7.41

0.2

-37.10 -22.36 -35.77 -36.87 -33.33 -40.42

6.3

12.38 28.35 12.03 10.93 13.98 7.87

0.3

-35.35 -20.57 -34.08 -35.18 -31.64 -38.71

6.4

12.84 28.82 12.47 11.37 14.42 8.31

0.4

-33.68 -18.86 -32.46 -33.56 -30.04 -37.08

6.5

13.29 29.29 12.90 11.80 14.85 8.75

0.5

-32.09 -17.24 -30.92 -32.02 -28.51 -35.53

6.6

13.75 29.75 13.33 12.23 15.28 9.19

0.6

-30.57 -15.69 -29.46 -30.56 -27.06 -34.05

6.7

14.19 30.20 13.76 12.66 15.70 9.62

0.7

-29.11 -14.20 -28.05 -29.15 -25.66 -32.64

6.8

14.63 30.66 14.18 13.08 16.12 10.05

0.8

-27.73 -12.78 -26.71 -27.81 -24.33 -31.29

6.9

15.07 31.10 14.60 13.50 16.53 10.48

0.9

-26.39 -11.42 -25.42 -26.52 -23.06 -29.99

7.0

15.50 31.55 15.02 13.92 16.94 10.89

1.0

-25.12 -10.11 -24.19 -25.29 -21.83 -28.74

7.1

15.93 31.98 15.43 14.33 17.34 11.31

1.1

-23.89 -8.85 -23.00 -24.10 -20.65 -27.54

7.2

16.36 32.42 15.83 14.73 17.74 11.72

1.2

-22.71 -7.64 -21.85 -22.95 -19.52 -26.39

7.3

16.78 32.85 16.23 15.13 18.14 12.13

1.3

-21.57 -6.47 -20.75 -21.85 -18.43 -25.28

7.4

17.19 33.27 16.63 15.53 18.53 12.53

1.4

-20.47 -5.34 -19.69 -20.79 -17.37 -24.20

7.5

17.61 33.69 17.03 15.93 18.92 12.93

1.5

-19.41 -4.25 -18.66 -19.76 -16.36 -23.17

7.6

18.01 34.11 17.42 16.32 19.31 13.33

1.6

-18.38 -3.20 -17.67 -18.77 -15.37 -22.16

7.7

18.42 34.52 17.80 16.70 19.69 13.72

1.7

-17.38 -2.17 -16.70 -17.80 -14.42 -21.19

7.8

18.82 34.93 18.19 17.09 20.07 14.11

1.8

-16.42 -1.18 -15.77 -16.87 -13.49 -20.24

7.9

19.22 35.34 18.57 17.47 20.44 14.49

1.9

-15.48 -0.22 -14.86 -15.96 -12.59 -19.33

8.0

19.61 35.74 18.94 17.84 20.81 14.88

2.0

-14.57 0.72 -13.97 -15.07 -11.72 -18.43

8.1

20.00 36.14 19.32 18.22 21.18 15.26

2.1

-13.68 1.63 -13.11 -14.21 -10.86 -17.56

8.2

20.39 36.54 19.69 18.59 21.55 15.63

2.2

-12.81 2.52 -12.28 -13.38 -10.04 -16.72

8.3

20.78 36.93 20.06 18.96 21.91 16.01

2.3

-11.97 3.39 -11.46 -12.56 -9.23 -15.89

8.4

21.16 37.32 20.42 19.32 22.27 16.38

2.4

-11.14 4.24 -10.66 -11.76 -8.43 -15.08

8.5

21.54 37.71 20.79 19.69 22.63 16.74

2.5

-10.34 5.07 -9.88 -10.98 -7.66 -14.29

8.6

21.91 38.09 21.15 20.05 22.98 17.11

2.6

-9.55 5.88 -9.11 -10.21 -6.91 -13.52

8.7

22.29 38.47 21.50 20.40 23.33 17.47

2.7

-8.78 6.68 -8.36 -9.46 -6.17 -12.76

8.8

22.66 38.85 21.86 20.76 23.68 17.83

2.8

-8.02 7.45 -7.63 -8.73 -5.44 -12.02

8.9

23.03 39.23 22.21 21.11 24.03 18.19

2.9

-7.28 8.22 -6.91 -8.01 -4.73 -11.29

9.0

23.39 39.60 22.56 21.46 24.37 18.55

3.0

-6.55 8.97 -6.20 -7.30 -4.03 -10.58

9.1

23.76 39.97 22.91 21.81 24.72 18.90

3.1

-5.83 9.70 -5.51 -6.61 -3.34 -9.87

9.2

24.12 40.34 23.25 22.15 25.06 19.25

3.2

-5.13 10.42 -4.83 -5.93 -2.67 -9.19

9.3

24.47 40.70 23.59 22.49 25.39 19.60

3.3

-4.44 11.13 -4.16 -5.26 -2.01 -8.51

9.4

24.83 41.06 23.93 22.83 25.73 19.94

3.4

-3.76 11.83 -3.50 -4.60 -1.36 -7.84

9.5

25.18 41.42 24.27 23.17 26.06 20.28

3.5

-3.09 12.52 -2.85 -3.95 -0.72 -7.19

9.6

25.54 41.78 24.61 23.51 26.39 20.63

3.6

-2.43 13.20 -2.22 -3.32 -0.09 -6.54

9.7

25.88 42.14 24.94 23.84 26.72 20.97

3.7

-1.78 13.86 -1.59 -2.69 0.53 -5.91

9.8

26.23 42.49 25.27 24.17 27.05 21.30

3.8

-1.14 14.52 -0.97 -2.07 1.14 -5.28

9.9

26.58 42.84 25.60 24.50 27.37 21.64

3.9

-0.51 15.16 -0.36 -1.46 1.74 -4.67

10.0

26.92 43.19 25.93 24.83 27.69 21.97

4.0

0.11 15.80 0.24 -0.86 2.33 -4.06

10.1

27.26 43.53 26.26 25.16 28.01 22.30

4.1

0.72 16.43 0.83 -0.27 2.92 -3.46

10.2

27.60 43.88 26.58 25.48 28.33 22.63

4.2

1.33 17.05 1.41 0.31 3.49 -2.87

10.3

27.94 44.22 26.90 25.80 28.65 22.96

4.3

1.92 17.66 1.98 0.88 4.06 -2.29

10.4

28.27 44.56 27.22 26.12 28.96 23.28

4.4

2.51 18.26 2.55 1.45 4.62 -1.72

10.5

28.61 44.90 27.54 26.44 29.27 23.60

4.5

3.09 18.85 3.11 2.01 5.17 -1.16

10.6

28.94 45.23 27.85 26.75 29.58 23.92

4.6

3.66 19.44 3.66 2.56 5.72 -0.60

10.7

29.27 45.56 28.17 27.07 29.89 24.24

4.7

4.23 20.02 4.20 3.10 6.26 -0.05

10.8

29.59 45.89 28.48 27.38 30.20 24.56

4.8

4.78 20.59 4.74 3.64 6.79 0.49

10.9

29.92 46.22 28.79 27.69 30.50 24.88

4.9

5.33 21.15 5.27 4.17 7.31 1.03

11.0

30.24 46.55 29.10 28.00 30.80 25.19

5.0

5.88 21.71 5.79 4.69 7.83 1.56

11.1

30.57 46.87 29.40 28.30 31.11 25.50

5.1

6.41 22.26 6.31 5.21 8.34 2.08

11.2

30.89 47.20 29.71 28.61 31.40 25.81

5.2

6.94 22.80 6.82 5.72 8.84 2.60

11.3

31.20 47.52 30.01 28.91 31.70 26.12

5.3

7.47 23.33 7.32 6.22 9.34 3.10

11.4

31.52 47.84 30.31 29.21 32.00 26.42

5.4

7.99 23.86 7.82 6.72 9.83 3.61

11.5

31.83 48.15 30.61 29.51 32.29 26.73

5.5

8.50 24.38 8.31 7.21 10.31 4.10

11.6

32.15 48.47 30.90 29.80 32.58 27.03

5.6

9.00 24.90 8.79 7.69 10.79 4.59

11.7

32.46 48.78 31.20 30.10 32.87 27.33

5.7

9.50 25.41 9.27 8.17 11.26 5.08

11.8

32.77 49.09 31.49 30.39 33.16 27.63

5.8

9.99 25.92 9.74 8.64 11.73 5.56

11.9

33.07 49.40 31.78 30.68 33.44 27.92

5.9

10.48 26.41 10.21 9.11 12.19 6.03

12.0

33.38 49.71 32.07 30.97 33.73 28.22

6.0

10.96 26.91 10.67 9.57 12.65 6.50

12.1

33.68 50.01 32.36 31.26 34.01 28.51

R-407C

P = corresponding pressure value (test value) Ts = saturated temperature Td = value (dew point) used to calculate the superheating: SH = Tsuction - Td (Pevaporation) Tb = value (bubble point) used to calculate the subcooling: SC = Tb (Pliquid) - Tliquid

REFRIGERANT TABLES

LBS - R.F.

R-22 R-134a R-407C R-22 R-134a

P (bar) Ts (°C) Ts (°C) Te(°C) Ts (°C) Td Tb P (bar) Ts (°C) Ts (°C) Te(°C) Ts (°C) Td Tb

12.2

33.99 50.32 32.65 31.55 34.29 28.80

18.3

49.71 66.12 47.48 46.38 48.82 43.95

12.3

34.29 50.62 32.93 31.83 34.57 29.09

18.4

49.94 66.35 47.70 46.60 49.03 44.17

12.4

34.59 50.92 33.21 32.11 34.85 29.38

18.5

50.17 66.57 47.91 46.81 49.24 44.39

12.5

34.88 51.22 33.49 32.39 35.12 29.66

18.6

50.39 66.80 48.12 47.02 49.44 44.60

12.6

35.18 51.51 33.77 32.67 35.40 29.94

18.7

50.62 67.02 48.33 47.23 49.65 44.82

12.7

35.47 51.81 34.05 32.95 35.67 30.23

18.8

50.84 67.24 48.55 47.45 49.85 45.04

12.8

35.76 52.10 34.32 33.22 35.94 30.51

18.9

51.07 67.46 48.76 47.66 50.06 45.25

12.9

36.05 52.39 34.59 33.49 36.21 30.78

19.0

51.29 67.68 48.96 47.86 50.26 45.47

13.0

36.34 52.68 34.87 33.77 36.47 31.06

19.1

51.51 67.90 49.17 48.07 50.46 45.68

13.1

36.63 52.97 35.14 34.04 36.74 31.34

19.2

51.74 68.12 49.38 48.28 50.67 45.89

13.2

36.91 53.25 35.40 34.30 37.00 31.61

19.3

51.96 68.34 49.58 48.48 50.87 46.10

13.3

37.19 53.53 35.67 34.57 37.26 31.88

19.4

52.18 68.55 49.79 48.69 51.06 46.31

13.4

37.47 53.82 35.94 34.84 37.52 32.15

19.5

52.40 68.77 49.99 48.89 51.26 46.52

13.5

37.75 54.10 36.20 35.10 37.78 32.42

19.6

52.61 68.98 50.19 49.09 51.46 46.73

13.6

38.03 54.38 36.46 35.36 38.04 32.68

19.7

52.83 69.19 50.40 49.30 51.66 46.94

13.7

38.31 54.65 36.72 35.62 38.29 32.95

19.8

53.05 69.40 50.60 49.50 51.85 47.14

13.8

38.58 54.93 36.98 35.88 38.54 33.21

19.9

53.26 69.61 50.80 49.70 52.04 47.35

13.9

38.85 55.20 37.24 36.14 38.80 33.47

20.0

53.47 69.82 50.99 49.89 52.24 47.55

14.0

39.13 55.48 37.49 36.39 39.05 33.73

20.1

53.69 70.03 51.19 50.09 52.43 47.75

14.1

39.40 55.75 37.74 36.64 39.30 33.99

20.2

53.90 70.24 51.39 50.29 52.62 47.95

14.2

39.66 56.02 38.00 36.90 39.54 34.25

20.3

54.11 70.45 51.58 50.48 52.81 48.15

14.3

39.93 56.28 38.25 37.15 39.79 34.51

20.4

54.32 70.65 51.77 50.67 53.00 48.35

14.4

40.20 56.55 38.50 37.40 40.03 34.76

20.5

54.53 70.86 51.97 50.87 53.19 48.55

14.5

40.46 56.82 38.75 37.65 40.28 35.01

20.6

54.74 71.06 52.16 51.06 53.37 48.75

14.6

40.72 57.08 38.99 37.89 40.52 35.27

20.7

54.94 71.26 52.35 51.25 53.56 48.94

14.7

40.98 57.34 39.24 38.14 40.76 35.52

20.8

55.15 71.47 52.54 51.44 53.74 49.14

14.8

41.24 57.61 39.48 38.38 41.00 35.77

20.9

55.35 71.67 52.73 51.63 53.93 49.33

14.9

41.50 57.87 39.73 38.63 41.24 36.02

21.0

55.55 71.87 52.92 51.82 54.11 49.53

15.0

41.76 58.12 39.97 38.87 41.48 36.26

21.1

55.76 72.07 53.10 52.00 54.29 49.72

15.1

42.01 58.38 40.21 39.11 41.71 36.51

21.2

55.96 72.27 53.29 52.19 54.47 49.91

15.2

42.27 58.64 40.45 39.35 41.95 36.75

21.3

56.16 72.47 53.48 52.38 54.65 50.10

15.3

42.52 58.90 40.69 39.59 42.18 37.00

21.4

56.35 72.67 53.66 52.56 54.83 50.29

15.4

42.78 59.15 40.93 39.83 42.42 37.24

21.5

56.55 72.87 53.85 52.75 55.01 50.48

15.5

43.03 59.40 41.17 40.07 42.65 37.48

21.6

56.75 73.07 54.03 52.93 55.19 50.67

15.6

43.28 59.66 41.40 40.30 42.88 37.73

21.7

56.95 73.27 54.22 53.12 55.37 50.86

15.7

43.53 59.91 41.64 40.54 43.11 37.97

21.8

57.14 73.47 54.40 53.30 55.55 51.05

15.8

43.77 60.16 41.87 40.77 43.34 38.21

21.9

57.34 73.66 54.59 53.49 55.73 51.24

15.9

44.02 60.41 42.11 41.01 43.57 38.44

22.0

57.53 73.86 54.77 53.67 55.91 51.43

16.0

44.27 60.66 42.34 41.24 43.80 38.68

22.1

57.72 74.06 54.95 53.85 56.09 51.62

16.1

44.51 60.90 42.57 41.47 44.02 38.92

22.2

57.92 74.26 55.14 54.04 56.27 51.81

16.2

44.76 61.15 42.80 41.70 44.25 39.15

22.3

58.11 74.46 55.32 54.22 56.45 52.00

16.3

45.00 61.39 43.03 41.93 44.47 39.39

22.4

58.30 74.66 55.51 54.41 56.62 52.19

16.4

45.24 61.64 43.26 42.16 44.70 39.62

22.5

58.49 74.86 55.69 54.59 56.80 52.38

16.5

45.48 61.88 43.49 42.39 44.92 39.86

22.6

58.69 75.06 55.88 54.78 56.98 52.57

16.6

45.72 62.13 43.72 42.62 45.14 40.09

22.7

58.88 75.25 56.06 54.96 57.16 52.76

16.7

45.96 62.37 43.95 42.85 45.37 40.32

22.8

59.07 75.45 56.25 55.15 57.34 52.95

16.8

46.20 62.61 44.17 43.07 45.59 40.56

22.9

59.26 75.65 56.43 55.33 57.52 53.14

16.9

46.44 62.85 44.40 43.30 45.81 40.79

23.0

59.45 75.85 56.62 55.52 57.70 53.33

17.0

46.68 63.09 44.62 43.52 46.03 41.02

23.1

59.65 76.04 56.80 55.70 57.88 53.53

17.1

46.92 63.33 44.85 43.75 46.25 41.25

23.2

59.84 76.23 56.99 55.89 58.06 53.72

17.2

47.15 63.57 45.07 43.97 46.47 41.48

23.3

60.03 76.43 57.17 56.07 58.24 53.91

17.3

47.39 63.80 45.29 44.19 46.68 41.70

23.4

60.22 76.62 57.36 56.26 58.42 54.10

17.4

47.62 64.04 45.52 44.42 46.90 41.93

23.5

60.42 76.80 57.54 56.44 58.60 54.29

17.5

47.86 64.27 45.74 44.64 47.12 42.16

23.6

60.61 76.99 57.72 56.62 58.77 54.48

17.6

48.09 64.51 45.96 44.86 47.33 42.38

23.7

60.81 77.17 57.91 56.81 58.95 54.66

17.7

48.33 64.74 46.18 45.08 47.55 42.61

23.8

61.00 77.34 58.08 56.98 59.12 54.85

17.8

48.56 64.97 46.40 45.30 47.76 42.83

23.9

61.19 77.51 58.26 57.16 59.29 55.03

17.9

48.79 65.20 46.62 45.52 47.97 43.06

24.0

61.39 77.68 58.43 57.33 59.46 55.21

18.0

49.02 65.43 46.83 45.73 48.19 43.28

24.1

61.58 77.83 58.60 57.50 59.62 55.39

18.1

49.25 65.66 47.05 45.95 48.40 43.50

24.2

61.78 77.98 58.77 57.67 59.78 55.56

18.2

49.48 65.89 47.27 46.17 48.61 43.73

24.3

61.97 78.11 58.93 57.83 59.94 55.72

R-407C

Routine Maintenance

GENERAL

The aim of the following sections is to provide possible solutions to a number of anomalies that may arise on the unit. The information provided does not cover the entire range of possible cases. The activation of a safety device indicates abnormal operation; before resetting it, check and eliminate the causes. The following is a list of possible problems and the corresponding causes and solutions.

CAUTION These operations must be carried out by specialist technical personnel possessing the legal requirements and in compliance with the safety standards in force. Before performing any checks on moving or live parts, switch the unit off at the mains isolator switch.

ANTIFREEZE ALARM

LOW PRESSURE ALARM

FLOW ALARM

HIGH PRESSURE ALARM

COMPRESSOR THERMAL OVERLOAD ALARM

THE UNIT DOES NOT START

FAN THERMAL OVERLOAD ALARM

1. Check that the circulation of water is correct (circulating pumps on, valves open, water filter system not clogged, ...).

2. Check that there is no air in the system and if necessary vent the air using the manual valves (if present) or alternatively check the correct operation of the automatic vents.

3. Check the wiring of the safety devices.

4. If the alarm persists, contact an Authorised Service Centre.

1. Check that the coils are free of obstacles, such as cardboard, nylon, leaves or dirt, and that the functional clearances described in the "Receipt-positioning" section are respected.

2. Check that the fan is working and that the direction of rotation is correct.

3. Check that the air and water temperatures are within the limits described in the technical data in the "General" section.

4. Check that the high pressure safety device is working correctly and check the related wiring.

5. If the alarm persists, contact an Authorised Service Centre.

1. Check that the unit is operating within the envisaged temperature limits (water, air).

2. Check that the refrigerant circuit is pressurised and there are no refrigerant leaks.

3. Check that the low pressure safety device is working correctly and check the corresponding wiring.

4. If the alarm persists, contact an Authorised Service Centre.

1. Check that the antifreeze set point value is not too high.

2. Check that the control set point value is not too low.

3. Check that the circulation of water is correct (circulating pumps on, valves open, water filter system not clogged, ...).

4. If the alarm persists, contact an Authorised Service Centre.

1. Check the wiring.

2. If the alarm persists, contact an Authorised Service Centre.

1. Check if any alarms are shown on the display: if alarms are active, check the type of alarm in the "Control" section, and act based on the information provided in the "Troubleshooting" section (if present), or alternatively contact an Authorised Service Centre.

2. Check that the unit is powered: check the isolator switches and circuit breakers upstream of the unit

3. Check that the display on the unit's control panel is on

4. Check that the ON/OFF button is ON

5. Check any external enabling signals (timer, flow switch, remote ON/OFF, ...)

6. If present, check that the compressor switches on the control panel are ON

7. For summer operation, check that the set point temperature is lower than the inlet temperature; for winter operation, check that the set point temperature is higher than the inlet temperature.

1. Check the wiring.

2. Check that the fan is free to move, without obstacles or obstructions (jammed bearings, ...).

3. If the alarm persists, contact an Authorised Service Centre.

- TROUBLESHOOTING -

Troubleshooting

THE UNIT IS NOISY

- Check that the panelling is correctly fastened.

- Check that the antivibration materials installed at the anchor points are in good condition.

- Check that the brackets are tightly fastened to the pipes

- Check the correct balance of the fan/s.

- Check the correct direction of rotation of the compressor/s.

- Check, if present, the condition of the shock absorbers on the compressor.

- If the unit is installed on antivibration mounts, check the effectiveness of the antivibration mounts, starting from the water pipes

Troubleshooting

All technical specifications and images presented in this manual are not binding and subject to change without notice. Forbidden any reproduction.

Clivet S.p.A.

Feltre (BL) - ITA LY tel. +39 0439 3131 fax +39 0439 313300 info@clivet.it

Clivet España S.A.

Madrid - SPAIN tel. +34 916 852344 fax +34 916 852353 info@clivet.es

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Amersfoort - Netherlands tel. +31 (0) 33 7503420 Fax +31 (0) 33 7503424 info@clivet.nl

CLIVET WSAT-2 Installation And Use Manual

Specifications and Main Features

Frequently Asked Questions

User Manual