Technibel PHRV 22, PHRV 36 Installation Instructions Manual

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Page 1

PHRV 22 / 36

Pompe à chaleur avec équipement hydraulique air / eau - Fluide réfrigérant R 407 C

Heat pump with hydraulic equipment air / water - R 407 C refrigerant

Refrigeratore d’acqua in versione pompa di calore con sezione idronica incorporata

aria / acqua Fluido refrigerante R 407 C

Bomba de calor con equipamiento hidráulico aire / agua - Fluido refrigerante R 407 C

Wärmepumpen reversibel mit hydraulikausrüstung Luft / Wasser zur

Außenaufstellung -

Kältemittel R 407 C

Mars 2008

10 1

1 470 - F

.GB.I.E.D - 03

NOTICE

D’INSTALLATION

INSTALLATION

INSTRUCTION

MANUALE

D’INST

ALLAZIONE

MANUAL

DE INSTALACIÓN

AUFSTELLUNGS-

HANDBUCH

(Etiquette signalétique)

Page 2

SUMMARY

1 - Generalities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 - Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 - Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 - Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5 - Operation of "ECH" electronic control . . . . . . . . . . . . . . . . . . . . . . 7

6 - Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7 - Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

8 - Maintenance instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

9 - Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

10 - Circulating pump curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

1 - Pressure curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

12 - Start-up data sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1 - GENERALITIES

1.1 - GENERAL SUPPLY CONDITIONS

• Generally speaking, the material is transported at the consignee’s risk.

• The consignee must immediately provide the carrier with written reserves if he finds any damage caused during transport.

1.2 - RECOMMENDATIONS

•

Prior to all servicing or other actions on the equipment, installation, commissioning, operation, or maintenance, the personnel in charge of these operations shall become familiar with the instructions and recommendations provided in the installation manual of the unit as well as the elements of the project's technical file.

•

The personnel responsible for receiving the unit must conduct a visual inspection in order to identify all damage to which the unit may have been subjected during transport: refrigerating circuit, electrical cabinet, cassis and cabinet.

•

The unit must be installed, started, maintained, serviced by qualified and authorised personnel, in compliance with the requirements of all directives, laws and regulations and in accordance with standard trade practices.

• During installation, troubleshooting and maintenance operations, the use of pipes as a step: under the stress, the pipe may rupture and the refrigerant may cause serious burns.

MARKING

This product marked conforms to the essential requirements of the Directives:

- Low voltage no. 2006/95/EC.

- Electromagnetic Compatibility no. 89/336 EEC, modified 92/31 and 93/68 EEC.

R 407 C

• Fluid R 407 C, as opposed to R22, is not a pure fluid but a blend composed of:

- 23% R 32 + 25% R 125 + 52% R 134 A.

• The compressors approved for operation with this fluid are filled beforehand with polyalcohol oil. Contrary to mineral oil, it is very hygroscopic: it absorbs the humidity of the ambient air very quickly. This can modify its lubricant properties and lead in time to the destruction of the compressor.

MAINTENANCE INSTRUCTIONS

1 - Never add oil to the appliance; the compressor is filled

with polyalcohol oil, a special oil which cannot tolerate the presence of other oils.

2 - The instruments used for:

- filling,

- pressure measurements,

- emptying under vacuum,

- recovering the fluid, must be compatible and only used for the R 407 C fluid.

3 - The weight of the refrigerant contained in the storage

bottle must be checked constantly

. Do not use it from the moment the remaining weight is less than 10% of the total weight.

4 - In the case of a new charge:

- do not use the charging cylinder,

- use a balance and a dip pipe type R 407 C cylinder,

- charge the weight of R 407 C as per the value indicated on the unit’s identification plate,

- IMPORTANT: see instruction 3 above.

5 - The charge must be undertaken in liquid phase. 6 - In case of leakage, do not complete the charge: recover

the remaining refrigerant for recycling and perform a total charge. Recovery, recycling or the destruction of the fluid must be done in compliance with the laws in force in the country concerned.

7 - If the refrigerant circuit is opened, you must:

- avoid the entry of air into the circuit as much as possible,

- replace the filter drier,

- perform the "vacuum operation" at a minimum level of

0.3 mbar (static).

8 - Do not release R 407 C fluid into the atmosphere. This

fluid is a fluorinated greenhouse gases, covered by the Kyoto Protocol with a Global W

arming Potential

(GWP) = 1653 - (CE Directive 842 / 2006).

APPLIANCES FILLED WITH R 407 C

Page 3

2 - PRESENTATION

2.1 - DESCRIPTION

1.3 - VOLTAGE

• Before carrying out any operation, check that the voltage indicated on the unit corresponds to the mains voltage.

• Before initiating maintenance or servicing on the installation, check that its power supply is disconnected and locked out.

1.4 - USE OF EQUIPMENT

• This heat pump is intended for the air-conditioning of premises.

1.5 - OPERATING CONDITIONS

• Refer to the technical specifications, the nominal conditions and operating limitations in the technical manual.

Water inlet

Water outlet

SCROLL COMPRESSOR

•

Mounted on vibration pads with sound insulation.

• Resistance case.

TER EXCHANGER

• Plate water exchanger with heat insulation.

AIR EXCHANGER

• Thin plate air exchanger with protective grille.

ELECTRIC F

AN UNIT

• Electric fan unit with protective grille.

SWITCH BOX

•

“ECH” electronic control

• Head pressure control.

• Main switch .

•

Phase-sequence tester

• Power and control circuitry protected by magnetothermal circuit breakers.

• Complies with standard EN 60 204-1.

• Short circuit current 10 kA, as per IEC 947-2.

CIRCULATING PUMP

• Circulating pump with heat insulation.

EXPANSION TANK

REFRIGERA

TION CIRCUIT

• R407C load.

• Copper piping.

• Thermostatic regulator.

• Filter-dryer.

•

Fluid cylinder

•

and LP

safety pressure switches.

•

Cycle inversion valve.

CHASSIS - BODYWORK

• Galvanised sheet metal with light grey oven-baked polyester powder paint (RAL

7035).

65432

Page 4

Dimensions (in mm) are given for standard units without options.

General tolerance ±10 mm.

Condenser air discharge

Condenser air suction

a Water inlet connection

b Water outlet connection

c HP and LP hose entry

Power supply

Location of the 4 anti-vibration pads (accessory) (100 x 100 x 25 mm) under girders

G Centre of gravity (in the centre of the unit)

1175 (1425 PHRV 36)

975

125

1050

290

LP Manometer (Accessory)

HP Manometer

(Accessory)

4 Ø 22.5 mm holes for sling attachment

Net

weight PHRV 22 303 kg PHRV 25 305 kg PHRV 32 327 kg PHRV 36 363 kg

Net

weight Tank without heating Tank with heating

112 kg

128 kg

Access to switch box

2.2.1 - PHRV

2.2.2 - 150-LITRES BUFFER T

ANK

(

ACCESSOR

)

975

140

1050160

175

611

(1)

4 Ø 22.5 mm holes

for sling attachment for

handling the tank only

Electric heating unit, as

required

(1) : Electric heating power

supply

, as required

Buf

fer tank

Hydraulic connection tube

2.2 - DIMENSIONS AND WEIGHT

Page 5

3 - INSTALLATION

• Prior to all servicing or other actions on the equipment, installation, commissioning, operation, or maintenance, the personnel in charge of these operations shall become familiar with the instructions and recommendations provided in the installation manual of the unit as well as the elements of the project's technical file.

•

The unit must not be installed near the following:

- sources of heat,

- combustible materials,

- return / air intake of an adjacent building.

• The unit must be installed, started, maintained and repaired by qualified servicing personnel in compliance with the requirements of all directives, laws and regulations and in accordance with standard trade practices.

• During installation, troubleshooting and maintenance operations, the use of pipes as a step: under the stress, the pipe may rupture and the refrigerant may cause serious burns.

•

The unit is delivered on a wooden pallet and shrink-wrapped.

• A lift truck may be used to remove the unit from its pallet.

• Handle the unit with care.

• Crane installation: once the plastic film has been removed, the machine may be lifted by placing the hoisting hooks into the four Ø 22.5 holes.

• Spacers or protective pads should be placed between the slings and body to avoid damage.

•

The unit's centre of gravity and weight are indicated on the space requirement diagrams and in the table of the technical documentation.

• Before installation, verify the following points:

- the unit must be installed outside in an appropriate location and in compliance with environmental requirements (sound level, integration, etc...),

- the unit’s installation location must be perfectly level and strong enough to support the weight of the unit and must have adequate inundation protection.

- sufficient space around the unit should be provided in order to facilitate servicing and maintenance operations (see drawing above),

- air suction to the coil and fan discharge must not be obstructed,

- install the unit above the region’s average snowfall level,

- vibrations and noise must not be transmitted to adjacent buildings,

- install the machine on anti-vibration pads and fit hoses on piping elements, as required,

- if necessary, consult an acoustics specialist concerning the unit’s optimum location.

•

AVOID:

- excessive exposure to sea-air or corrosive gases,

- the proximity of the extractor fan,

- projections of mud (next to a roadway or path, for example),

- areas where there is strong wind blowing against the unit's air exhaust.

• Protection index of the unit:

- IP 24 : for the electrical equipment, (IPXXB

: for the mechanical hazards).

IMPORTANT: If a tank is mounted underneath the unit, never handle the assembly

. The unit and the tank must be handled

separately (see § 6.5.1).

3000

300

1000

300

Clearances to be respected

A The clearance may be

zero.

4 - CONNECTIONS

4.1 - HYDRAULIC CONNECTION

• Connect the water pipes to the corresponding connections: male 1" 1/4 (33 x 42).

• Connect the hydraulic filter onto the water intake. Also provide 2 isolation valves for intake cleaning purposes.

•

The pipes must be at a sufficient distance from the removable panels to enable servicing operations to be performed.

•

Make the connection with flexible hoses preferably.

•

The diameter of the pipes must be calculated according to the installation (take care with high head losses).

(600 mm

with tank)

Page 6

4.2 - ELECTRICAL CONNECTIONS

4.2.1 - GENERALITIES:

• In all cases, refer to the wiring diagrams supplied with the unit or supplied upon request.

•

The acceptable voltage variation is: ±10% during operation.

• The electrical connection conduits must be fixed.

• Short circuit current: 10 kA as per CEI 947-2.

• Class 1 unit.

•

Use the holes fitted with grommets for passing cables into the unit.

• Use the stuffing boxes for passing cables into in the electrical box.

•

The electrical installation must comply with the standards and regulations applicable where the unit is being installed (in particular NFC 15-100 ≈ CEI 364).

•

The unit is designed to be connected to a main supply with a TT, IT or TN.S neutral point connection (as per NF C 15-100).

• Electrical diagram

1005804.

4.2.2 - GENERATOR POWER SUPPLY

• The power supply must be three-phase 400 V / 50 Hz + Neutral, in the electrical box directly on power switch S1. CAUTION: Before starting the unit, ensure that the phase rotation order is correct. The phase-sequence controller restricts the unit from operating if the 3 supply phases are not in order or if a phase is absent.

• The power supply must come from an isolation and electric protection device (not supplied) in accordance with existing regulations.

• The sizing of the power supply cables is to be ensured by the installer in accordance with the installation conditions and as per current standards. Cable sizes, indicated below, are given for information purposes. They are calculated in accordance with NFC 15-100 (≈ CEI 364) with the following hypotheses:

- Maximum current, see table below.

- Multi-pole copper cable with PR insulation.

- Installation in non-ventilated cable duct (installation method No. 41). No other power cable.

- Ambient temperature 40°C.

• The lengths indicated below correspond to a voltage drop less than 5% in the cable.

• The complete electrical specifications are given in the table of the technical documentation.

•

Power to the frost resistor or supplementary heating must be separate from the installation.

4.2.3 - CONTROL BY EXTERNAL CONTACTS

- PHR

V WITHOUT SUPPLEMENT

HEATING IN THE TANK (accessory)

•

The machine is factory-wired for heating mode operation.

The unit can be controlled remotely by connecting two good-

quality external potential-free contacts (not supplied):

- 1 for the remote On/Stand-by signal (contact closed = operation authorized, contact open = stand-by),

1 for change-over of the operating mode (contact closed = heating mode, contact open = cooling mode).

• The On/Stand-by signal is connected to terminals 1 and 2 of the PCB located in the switch box (remove the existing bridge - see diagram).

•

The mode change-over signal is connected to terminals 3 and 4 of the PCB (remove the existing bridge - see diagram).

• The wiring of these contacts must not be routed near power cables in order to avoid electromagnetic disturbances.

• Use shielded cable with twisted pairs (shielding grounded on generator side).

• Max. connection cable length: 100 m.

• Minimum wire size: 0.5 mm

CAUTION: Mode changes (Heating /

ooling) are to be performed with the unit shutdown.

B -

PHR

V WITH ELECTRIC SUPPLEMENT

HEA

TING IN THE T

ANK

(accessory)

• The same as stated above, although in this case the command contacts are to be connected to the terminal in the electric heater

’

s control box

(placed in the tank).

• See details in § 6.5.

22 25 32 36

Starting current A 145 145 150 190 Max. total current A 22.7 25.8 34 38.7 Power supply cable section

6 6 6 10

Max. connection length m 100 100 100 100

PHRV

ON/Stand-by

Operating mode

(k) Jumper to be removed

(

Printed

circuit

card

Page 7

5 - OPERATION OF "ECH" ELECTRONIC CONTROL

• See wiring diagrams supplied with the machine.

5.1 - DELIVERY STATE

• The control unit is supplied fitted in the machine and factory pre-set.

• All the connections are made except those concerning the available signals or the options.

5.2 - PRINCIPLE

• The microprocessor controls the operation of the machine and of the associated alarms.

It continuously compares the water temperature measured by the probe

SD1 and the setpoint

temperature value entered via the keyboard. Each operating request produced by the control unit is

indicated by the light (

6) (see below).

This light flashes if a safety delay is in progress. It stays on when the compressor is operating.

• The

control probe SD1 is located on the water inlet in

the factory.

• The controller is connected on a printed circuit board on which the inputs and outputs are connected.

On this board:

12 V supply transformer

- the alarm report relay

, with its terminal strip,

- the 230 V circuit fuse (4 A - 250 V - 5x20 - fast - breaking capacity: 1,5 kA).

- connecting terminal strip for the On / Stand-by and Heating / Cooling contacts.

5.3 - PRESENTATION

5.3.1 - DISPLAY KEYBOARD

(1) Key for:

- local On / Off control,

- access to parameters (in combination with button (

2)),

- alarm clearance,

- hour counter reset.

(2) Key for:

Local operating mode selection (heating / cooling) (the function is activated by special parameterisation, see paragraph

5.8),

access to parameters (in combination with button (

1)), (3) LED display. (4) Cooling mode indicator

(5) Heating mode indicator. (6) Compressor on indicator. (7) Defrosting indicator. (8) Indicator for possible supplementary heating control. (9) Decimal point: if illuminated when the operating time is displayed, the value must be multiplied by 100.

DIGITAL INPUTS

Ai1

Ai2

Ai3

Ai4

12 VAC

SUPPLY

TRANSFORMER

ACTUATORS

SD1

Water

inlet temperature

probe

(for control)

SD2 Water

outlet

temperature

probe

(for anti-

freeze protection)

SD3 Air

heat exchanger

temperature

probe

(for defrosting)

SD4 Outside

temperature

probe

6 4 2

3 9 1

ECH 215 BDT

CONTROLLER

CAUTION: In this case, the maximum length of the cable is limited to 50 m

4.2.4 - REMOTE CONTROL

• See § 6.3. (Accessories).

4.2.5 - SUPPLEMENTARY TANK HEATING

• See § 6.5. (Accessories).

4.2.6 - MISCELLANEOUS

• Alarm report: Potential-free changeover contact (2A resistive - 250 VAC max.) available on the PCB terminal strip in the electrical box (terminals 5 (common), 6 and 7 of the printed circuit) for remote signaling. See schematic.

In case of alarm:

- contact open between terminals 5 and 6,

- contact closed between terminals 5 and 7.

•

Supplementary heating authorisation for authorisation of supplementary heating other than that for the buffer tank: potentialfree, normally-open contact (2A

resistive - 250 VAC maxi.) available on the unit's terminal strip (terminals 10 and 11).

On / Off

Operating mode

Heating control unit

Page 8

5.5 - STARTING

The unit is factory configured for remote control by contacts (see other possibilities in paragraph 4.2.3).

• Initial condition:

- the unit is connected both hydraulically and electrically, and is ready to operate,

- operating mode remote changeover switch is in required position (heating or cooling),

- the remote stand-by contact is open (= stand-by).

• Turn the installation on:

- the display comes on and shows the water temperature (read by the control probe SD1). The mode indicator lamps (4) and (

5) flash to signal remote stand-by,

- the unit's circulating pump starts.

• To start the unit:

- close the remote stand-by contact (not supplied) if connected (see paragraph 4.2.3),

- The indicator lamp corresponding to the selected mode lights up:

- indicator lamp (

4) Cooling.

- indicator lamp (

5) Heating.

The compressor "

ON" indicator light (6) comes on if necessary (see diagram paragraph 5.4). If the light flashes, it means

that the compressor is starting required but that a safety delay is in progress.

This light stays on when the compressor

has started.

•

To stop the unit:

- open the remote stand-by contact,

- the compressor operation indicator lamp (

6) goes out and the operating mode indicator lamps (4) and (5) flash,

the unit's circulating pump remains in operation.

• Complete stop:

the unit can be completely stopped with the circulating pump shut-down by pressing and holding the

ON/OFF button (1)

for 2 seconds. The display unit goes blank, only the decimal indicator lamp (

9) remains

illuminated. This shut-down takes priority.

Note: Shut-down of the circulating pump is delayed 1 minute after the compressor stops.

CAUTION: we recommended that the unit be shut down a few minutes before changing the operating mode (Heating <---> Cooling).

5.4 - OPERATING MODES

• The machine is wired in the factory to operate in heating mode.

•

The operating mode changeover (heating / cooling) may be controlled

remotely by means of an external contact (not

supplied

) connected to the unit (see details in paragraph 4.2.3):

contact open = cooling - contact closed = heating.

Temperature (°C) Temperature (°C)

-20 67,740 30 8,313

-10 42,450 40 5,820 0 27,280 50 4,161

10 17,960 60 3,021 20 12,090 70 2,229 25 10,000

Ohmic value (Ohm)

5.3.2 - CTN TYPE TEMPERATURE PROBE

•

10 kΩ at 25° C.

Hysteresis

Cooling setpoint

cooling mode (factory set at 2k)

Water temperature

Compressor control

Cooling

Hysteresis

Heating setpoint

heating mode (factory set at 2k)

Water temperature

Compressor control

Heating

2 seconds

Page 9

5.6 - PARAMETERS - DISPLAYING AND ADJUSTING

5.6.1 - GENERALITIES

• Parameter access is structured within a multi-level menu, see the diagram below. Simultaneously pressing the "ON/OFF" (1) and "Mode" (2) buttons for a brief moment (less than 2 seconds) gives access to the next level. Simultaneously pressing for a long moment (longer than 2 seconds) turns you to the previous level.

• Button (

1) or button (2) is used to scroll through the entries ("Label") within the same level or to increase or decrease a

parameter value.

5.6.2 - PARAMETER ACCESS DIAGRAM

t < 2 sec. --> Upper level

t > 2 sec. --> Return to the previous

level

(*)

Accessible to qualified personnel only after entering the password (PSS).

Note 1: Indicator lamps (6), (7), (8) flash when levels 1 and above are accessed. Note 2: The normal display (level 0) returns automatically after 5 minutes if no buttons are pressed.

Level 0

Normal display

Level 1 Level 2 Level 3 Level 4

Temperature S1 Alarm active

Set value SET

Cooling setpoint Coo

Setpoint value

Heating setpoint HEA

Setpoint value

Temperature probes TP

Probe code t01…t04 Temperature value

Alarms Err Alarm code E00...

Digital inputs Id (*) Input code 01… input status

Parameters P

Ar (*)

Config. para. CnF

Parameters codes H01…

Parameter value

Compressor parameter CP

Parameters codes C01…

Parameter value

Fan parameter FAn

Parameters codes F01…

Parameter value

Alarm parameter ALL

Parameters codes A01…

Parameter value

Pump para. PUP

Parameters codes P01…

Parameter value

Frost. para. Fro

Parameters codes r01…

Parameter value

Defrost. para. dFr

Parameters codes d01…

Parameter value

Password PSS Password value

Hour counters OHr

Comp. counter 1 OH1

Counter value

Pump counter OHP Counter value

Page 10

5.6.3 - SETPOINT ADJUSTMENT

• Simultaneously press buttons (1) and (2) for at least 2 seconds, "SET" is displayed.

•

Press the 2 buttons again, "

Coo" is displayed. Using button (1) or (2), display either "HEA" or "Coo" corresponding to

the heating setpoint ("

HEA") or cooling setpoint ("Coo").

• Simultaneously press the 2 buttons again for 2 seconds. The setpoint value appears. If needed, modify the value with the buttons.

• Press the 2 buttons simultaneously to validate the setpoint.

• Return to the normal display by simultaneously pressing the 2 buttons for more than 2 seconds.

Reminder: control on the installation return temperature.

Note: All units are factory configured and parameterized for optimum operation in the terminal unit application.

5.6.4 - DISPLAY OF TEMPERATURES, ALARMS, AND HOUR COUNTERS

Accessible directly via the menu, see diagram 5.6.2.

• Temperatures "TP: Displays the values indicated by each temperature probe:

t01: water inlet temperature. t02: water outlet temperature. t03: exchanger air temperature. t04: outside air temperature.

• Alarms "Err": Displays the list of all current alarms (scroll through the alarm messages with buttons (1) and/or (2)).

• Hour counters "OHr": Displays the operating time of the compressor ("OH1") and the circulating pump ("OHP"). The counter can be reset by a long press (> 2 seconds) on button (1) when the counter value is displayed.

5.6.5 - ACCESS TO THE TECHNICAL PARAMETERS "PAR"

For qualified personnel after entering the password "PSS". Any incorrect adjustment may lead to serious malfunctions.

• Go to the "PSS" section in the menu. Briefly and simultaneously press buttons (1) and (2). The "---" message appears. Display the password ("

199") using buttons (1) and (2) and validate it by simultaneously pressing buttons (1) and (2). It

is now possible to enter the parameters section "PAr".

CAUTION: After modifying one or more technical parameters, the controller must be turned off then back on again to reset it with its new parameters.

5.7 - ALARMS

• When an alarm occurs:

the alarm report is activated,

the corresponding code flashes on the display unit. See table,

- the unit stops if necessary (see table below).

•

Remedy the fault.

IMPORTANT NOTE: All work must be carried out by qualified, experienced personnel.

• The alarms are normally reset automatically.

•

CAUTION: the alarms: - HP,

- LP (low pressure),

Anti-freeze,

- Water flow rate

have an event counter that shifts to

manual reset if the alarm occurs several times during the last hour.

• The "refrigerating circuit" alarm is reset manually.

• The alarms are reset by briefly pressing the "

ON/OFF" button (1).

•

When the alarm is cleared:

- the alarm report is de-activated,

the display reverts to normal (not flashing),

the machine can re-start (if it was stopped).

• Special features of the alarm relay:

the potential-free change-over contact (2

- 230 V

AC max.), on the terminal strip of the PCB, comes from the relay

located on this board,

- the relay is actuated in the absence of an alarm (contacts: 5/6 closed and 5/7 open),

- in the case of alarm or power supply loss, the relay is released (contacts: 5/6 open and 5/7 closed).

Factory setting (terminal units)

HEA Heating set point

40°C 25 to 45°C

Coo Cooling set point

12°C 9 to 25°C

Parameters

Code

Adjustment range

Page 11

SUMMARY TABLE OF ALARMS

(*) The refrigeration circuit alarm is activated if the temperature difference between the water inlet and outlet (after a few minutes

of compressor operation) is insufficient (refrigerant charge, three-phase compressor turning "backwards", inversion valve blocked…).

5.8 - SPECIAL OPERATING FEATURES

• Reduction of water volume:

- the controller uses a self-adapting algorithm that analyses the compressor's operating time and can indicate deviations of the current set point (and the corresponding hysteresis) in case of too short operating times (in order to extend the operating times),

- for special applications, in which case the dimensioning of the unit and the circuit are carefully designed, this function can be deactivated. To do this, set the parameter

C08 to 0 in the "CP" section of the parameterization menu.

•

Defrosting (in heating mode only):

- if the temperature detected by probe SD3 drops below the frosting temperature (dependent of the outside temperature), a time counter is activated. This counter records the operating time in icing conditions. This status is indicated by the flashing frosting indicator lamp (7),

- after an accumulated operating time of 30 minutes, a defrosting operation is launched (inversion of the refrigerating cycle and shut-down of the fan) until the temperature detected by probe

SD3 rises above the end of frosting temperature

threshold. The defrosting phase is indicated by the (steady) illumination of indicator lamp (

7).

Note:

The ventilation can restart after defrosting is completed to prevent excessive pressure build-up. For special climatic conditions, the factory-set time counter value of 30 minutes can be adjusted.

o do this, modify

parameter

d03 in the defrosting section "dFr".

•

Circulating pump control:

the pump is actuated when the unit operating or in "

stand-by" mode,

- the pump is stopped when the unit is completely "OFF". The shut-down of the pump is delayed 1 minute after the compressor stops. An antifreeze device forces pump operation if the outside temperature (probe

SD4) drops below 0°C,

- an "anti-sticking" device forces pump operation (if stopped) for 3 seconds every 24 hours.

Alarm Code

Inhibition delay

Compressor

stop

Fan stop Pump stop

Supplementary

heating control

shut-down

Remarks

Fault on probe 1 E40 X X X

Fault on probe 2 E06 X X X

Fault on probe 3 E07 X X X

Fault on probe 4 E42 X X X

Force water pump operation

H.P. E01 X

L.P. or fan and compressor overheating or phase order

E02 120'' at start-up X X

From probe

SD2 (water outlet).

Threshold : 4° C

10'' in operation X X X X

If passage

30'' at start-up reset

manual

120'' at start-up Manual reset.

+ Inactive in

120'' in operation anti-freeze phase.

From probe

SD1 (water inlet).

Threshold : 60° C

Configuration error

Anti-freeze (water heat exchanger)

Water flow rate

Refrigeration circuit (*)

Max. water temperature

E45XX

E46

30''XX

E41

E44

E05

Page 12

• Operating mode selection:

the controller is factory configured to control the unit by 3 outside contacts:

• On / Stand-by ,

•

Heating / Cooling.

- in stand-by mode, the circulating pump continues to function.

Note:

It is possible to shut the unit down completely (circulating pump stopped) by pressing the ON/OFF button (1).

this configuration is adapted to system applications,

- for other applications, the following configurations are possible by modifying the parameterization: a) Complete shut-down ("

OFF") by remote contact (instead of "stand-by"). In the "CnF" configuration section, change the parameter H20 from 7 (remote stand-by) to 4 (remote OFF). In the case of r

emove "OFF" complete shut-down, the display is off. Only the decimal indicator lamp flashes.

b) Selection of the heating / cooling mode using the display unit's keys.

In the "

CnF" configuration section, change the parameter H27 from 1 (selection by remote contact) to 0 (selection by keypad). This configuration is chosen in the case where the remote display unit 70250055 is used (Accessory

, see installation in paragraph 6.3) to control the unit, for example. The operating mode is thus selected by successively pressing the "mode" button (2) according to the following sequence:

---> stand-by ---> cooling ---> heating ---> stand-by ---

The stand-by mode is indicated by the extinction of the heating and cooling mode indicator lamps.

•

Pre-ventilation:

- generally speaking, in order to condition the air heat exchanger, the fan always starts at full speed a few seconds before the compressor.

•

Anti short-cycle time delays:

- the compressor control features a time delay system in order to respect:

• a maximum number of starts per hour (12),

• a minimum stop time (150 seconds).

•

Cycle inversion valve:

- The valve is actuated in heating mode.

•

Control hysteresis:

- See the operating diagrams in paragraph 5.4,

- The hysteresis in both heating and cooling modes are factory set at 2k. They can be modified. To do this, change parameters

C03 (cooling hysteresis) and/or C04 (heating hysteresis) in the compressor section "CP".

•

Supplementary heating authorisation, if any:

- potential-free, normally-open contact (2A resistive - 250 VAC maxi.) available on the unit's terminal strip (terminals 10 and 11),

- for authorisation of supplementary heating, if any, other than that on the buffer tank.

Heating hysteresis

Heating set point

Water temperature

Supplementary

heating

Compressor

Differential between stages

Parameter r14

is factory set at 5k

the supplementary heating control is authorized only if the unit's control unit is actuated in heating mode and provide there is no water output or probe alarm.

Page 13

• "Dynamic" set points:

by changing the parameter

H31 from 0 to 1, an automatic heating and cooling set point compensation system based on

the outside temperature is activated,

the following parameters allow the compensation slopes to be set:

Parameter Designation Factory setting

H32 = Set point "offset" in cooling mode 5 k

H33 = Set point "offset" in heating mode 5 k

H34 = Outside temperature setting ("foot of slope") in cooling mode 25°C

H35 = Outside temperature setting ("foot of slope") in heating mode 15°C

H36 = Proportional strip in cooling mode + 10 k

H37 = Proportional strip in heating mode - 15 k

< 0> 0

0°C H35 = 15°C

H37

H33

40°C

45°C

0°C H34 = 25°C35°C

H36

H32

12°C

17°C

Outside temperature

H34 or H35

H36 or H37 H36 or H37

Set point offset

H32 or H33 > 0

Outside

temperature

Outside

temperature

Set point

• Example: Factory setting in heating mode Factory setting in cooling mode

• Condensation pressure control device:

- The unit is equipped with a separate condensation pressure control device.

Based on the pressure information provided by a specific sensor

, the controller varies the supply voltage of the fan

according to the diagram opposite.

- This controller is factory-set for optimal operation. Consult us for all other settings.

Function activated in cooling mode.

The control unit is mounted on the back of the electrical box.

Parameter Probe offset Units Factory setting

H39 Probe No. 1 offset Degree 0

H40 Probe No. 2 offset Degree 0

H41 Probe No. 3 offset Degree 0

H42 Probe No. 4 offset Degree/10 0

45 %

90 %

95 %

Pressure

Set point

16 Bar

Proportional

strip

4 ±1 Bar

• Principle:

• Adjustment of the value measured by the temperature probes ("Offset"):

- allows the difference between the value displayed and the verified value to be compensated.

∆

P: 6 Bar

Page 14

6 - ACCESSORIES

6.1 - VIBRATION KIT

• The kit includes:

- a set of four vibration pads, 25 mm thick, code 70600035,

a set of two hoses, length: 1 m, ø 1" 1/4

70600027.

6.2 - HP AND LP PRESSURE GAUGES

• Code 70970007.

• The accessory includes 1 set of 2 pressure gauges (HP and LP).

- Remove the caps on the riser of the front panel.

Install the pressure gauges.

- Connect the capillary tubes to the pressure taps while observing the following precautions:

6.3 - REMOTE CONTROL

• Code 70250055.

•

The functions and display are exactly the same as those on controller

•

The only difference concerns the buttons and which are separated by the “

ON/OFF” and “Mode” buttons.

•

The controller is designed to be installed inside sheltered rooms.

IMPORTANT: Make sure that the capillary does not touch any metal parts that may damage it.

Plastic collar

Protective foam

Reserve loops

Protective foam

Pressure gauge mounted on the device's upright

Plastic fasteners

Capillary tube

Pressure tap on

refrigerant tube

Page 15

• Connection:

the control is delivered with a connector so that the link can be connected to the “ECH” controller, mounted in the unit.

to extend the link, max. length.: 100 meters, use twisted pair shielded cable with a cross section of at least 0.5 mm

(shielding of the ground

on unit side).

CAUTION: Do not route this cable near power cables. The operation must take performed with the unit's power supply off

and locked out. IMPORTANT COMMENT CONCERNING THE OPERATION:

The generator's control unit is configured to receive "On / Of

f" and

"Heating / Cooling" orders by external dry contacts (not included). By modifying a parameter during installation, it is possible to select

"Heating / Cooling" by the "

MODE" button.

In this case, "Heating / Cooling" cooling by external contact is inactiv.

For PHRV units with supplementary heating in the tank, the assembly can only be controlled by external dry contacts.

6.4 - RS 485 COMMUNICATION INTERFACE (MODBUS protocol)

• Code 70250056.

• Mount the communication interface on the DIN rail next to the electrical box's terminal strip.

• Connect the ribbon cable (supplied) between the interface and the "ECH" controller.

• Connect the interface's 230 VAC power supply to the output of breaker Q4 using the Blue and Black wires supplied, as shown opposite.

6.5 - 150-LITRE BUFFER TANK

• 2 models:

Code

70600110: model without supplementary heating

with 800 W frost protection resistor (single-phase 230 Vac),

- Code

70200240: model with 24 kW supplementary

heating (in 400 V

ac, three-phase).

The electrical connections between the unit and the tank with supplementary heating are not supplied.

Composition

CONN A

CONN B

SERIAL KEYB

25 26

4 6 7 8

Cap

ater inlet

(male 1”1/4)

Water outlet (male 1”1/4)

REMOTE CONTROL

CONN A

CONN B

SERIAL KEYB

987654

RS 485

N Ph

321

BUS ADAPTER

Back of “ECH” controller

Ribbon cable

Blue

Black

Back of “ECH” controller

Connector: blue wire

= terminal 24 red wire = terminal 25 black wire = terminal 26

70600110 70200240

without heating with heating

1 Sheetmetal buffer tank - polyurethane insulation 2 Branch connections for heating resistances

Set of three 8 kW resistances

800 W anti-freeze resistance 3 Fill valve 4 Drain valve 5 Purge 6 Safety valve (5 bar) 7 Water pressure fail pressure switch 8 Supplementary heating control unit

Mark

Page 16

6.5.1 - INSTALLATION

• See dimensions and weight in § 2.2.

•

Installation precautions in § 3.

• Designed to be installed either underneath the unit, or separately.

IMPORT

ANT: If a tank is mounted underneath the unit, never handle the assembly. The unit and the tank must be handled separately.

• In the case where the tank is mounted underneath the unit, perform the following procedure:

- Remove the side panels to gain access to the mounting screws on the transport pallet.

- For the tank with supplementary heating

, remove the cap (marked "o" in the drawing above) on the upper panel to route the electrical connections with the unit. Protect the edges of the opening created with the seal supplied with the tank. Proceed in the same manner on the unit, making an opening opposite that of the tank. Protect the edges of the opening created with the seal supplied with the tank.

- Position the tank with regard to the precautions stipulated in § 3; the position of the vibration pads (accessory) is indicated in § 2.2.

- Place the unit on the tank chassis and secure the assembly with the 4 brackets and the 16 screws supplied with the tank.

- If necessary, counter-drill the bracket mounting holes (ø 5.5) in the unit's base.

6.5.2 - HYDRAULIC CONNECTION

• Diagram:

• Connect the water pipes to the corresponding connections:

male 1" 1/4 (33 x 42).

• The tank is connected to the unit's outlet. Note: An insulated connection line connecting the unit's outlet to the tank's inlet is supplied with the tank (see § 2.2). This line is designed to be used in cases where the tank is placed underneath the unit.

• The pipes must be at a sufficient distance from the removable panels to enable servicing operations to be performed.

• Make the connection with flexible hoses preferably.

•

The diameter of the pipes must be calculated according to the installation (take care with high head losses).

6.5.3 -

ELECTRICAL CONNECTIONS: model without supplementary heating

See the general information about the electrical connections in § 4.2.1.

• The tank is equipped with an 800 W anti-freeze resistance.

•

Power supply and control of this resistance shall be separate from all other installation circuits. It must be installed by qualified service personnel who are familiar with this type of equipment and in compliance with local regulations and recognized trade practices.

• Before all operations on the unit, make sure that the power supply is disconnected and locked out.

•

The 230 V

ac electrical power supply must be fitted with a separate overcurrent

protection and disconnect switch in compliance with the rules and regulations in force.

• The power supply wiring must be secured. Use the cable gland located on the resistance cover.

• Route the cable through the grommet located on the front left-hand upright.

•

Note 1:

The resistance is equipped with an adjustable limiting thermostat set at

approximately 5°C.

•

Note 2: Power to the resistance must be turned on only when the circuit is full of water.

• Note 3: Make sure that wiring is securely clamped in the terminal block and the ground connection is correctly attached.

1 bracket in

each corner

Unit

Tank

Supply to installation

Return from installation

Thermostat

Cover

Thermostat

-35°C / +35°C preset at 5

Phase

Ground

Neutral

Page 17

6.5.4 - ELECTRICAL CONNECTIONS: model with supplementary heating

See the general information about the electrical connections in § 4.2.1.

•

CAUTION: in the case where the tank and the unit are mounted separately, make sure that the grounds of both equipment are interconnected.

•

Note: The control connections with the unit are not supplied.

• Electrical diagram No.

1005753.

Description of connections:

C D

AUXILIARY HEATING POWER SUPPLY

• The power supply (three-phase 400 V) is separate from the unit and is connected directly on the power switch of the heating control unit

• The power supply must come from an isolation and electric protection device (not supplied) in accordance with existing regulations.

- Maximum current, see table below.

- Multi-pole copper cable with PR insulation.

- Installation in non-ventilated cable duct (installation method No. 41). No other power cable.

- Ambient temperature 40°C.

• The lengths indicated below correspond to a voltage drop less than 5% in the cable.

GROUP CONTROL

• Use shielded cable with 2 twisted pairs (shielding grounded on generator side):

1 pair for unit operator,

- 1 pair for Heating / Cooling changeover.

• Maximum cable length: 100 meters.

• Min. cable size: 0.5 mm

To avoid problems related to electromagnetic disturbances, this cable must not be routed near power cables.

CIRCULATING PUMP CONTROL

• 2-conductor cable adapted to the 230 Vac of the unit's control circuit.

• Min. cable size: 0.75 mm

HEATING AUTHORISATION

• 4-conductor cable adapted to the 230 Vac of the supplementary heating control circuit.

•

Min. cable size: 0.75 mm

Heating power kW 24 Max. current A 35 Power supply cable

Max. connection length m 150

BCD

UNIT

Electrical box

heating power

supply

400 V / 3 Ph / 50 Hz

Supplementary

heating alarm report

(as required)

Water temperature sensor (*) (installation return)

TANK

Supplementary heating control,

electrical box

Group

control

Pump

control

Supplementary

heating

authorization

3rdback-up

stage

authorization

(*) Sensor delivered in the heating

control unit

Page 18

INSTALLATION RETURN WATER TEMPERATURE SENSOR

•

Connect the temperature sensor (

SD1 on diagram 1005753) to the supplementary

heating electronic controller (B1) located in the heating control box (Terminal S1).

• In order to ensure that this sensor works correctly:

- ensure that the sensor is correctly secured to the piping,

- use thermoconductive paste to improve conductivity (not included),

- insulate the assembly with insulating foam (not included).

• Two cases:

1) Tank mounted on the unit.

- The sensor, equipped with its cable (supplied with the module) is to be installed in the location provided on the unit's water inlet. See drawing.

2) Tank mounted separately.

The sensor is placed on the installation's water return line. Use a metal clamp.

- This connection may be extended with a 2-conductor cable, min. size 0.5 mm

and

max. length: 25 meters.

To avoid problems related to electromagnetic disturbances, this cable must not be routed near power cables.

SUPPLEMENTARY HEATING ALARM REPORT

•

A potential-free change-over contact (2 A resistive, 250 Vac maximum) is available on the terminal of the heating control unit (terminals 14, 15 and 16).

• Tripping of the contact indicates:

- tripping of the heater's thermal safety thermostat,

- undervoltage on the heating power circuit,

- a drop in tank water pressure.

Detail of control connections:

KM3

32 33

4130 31 32 33

1234

6897

KM2

12 13

B C D

Printed Circuit

Board

6.5.5 - SUPPLEMENTARY ELECTRIC HEATING OPERATION

PRESENTATION

• The heater consists of resistance each rated at 8 kW (400 V, 3-phase), secured to the buffer tank.

•

Backup is authorized with the 2nd stage, although is triggered only if the generator is out of service.

• Securities:

- One of the resistance is equipped with a 2-threshold safety thermostat: one automatic reset threshold which is factory set at 70°C and a manual reset set at 87°C.

- All malfunctions detected by this thermostat results in the shutdown of the electric heating.

After having turned off (and locked out) the power to the unit and corrected the malfunction, the safety device is reset by pressing the button located on the body of the thermostat. This thermostat is accessible under the resistance’

s head cover

This heater is also slaved to the operation of the water circulating pump and to the water pressure switch installed on the tank.

- These heating elements are controlled from a specific heating control unit (see location in paragraph 4.2.3), equipped with a 2-stage electronic controller.

1ststage - 8 kW

stage - 8 kW

Back-up - 8 kW

Security

PHRV 22 to 36

Tank

Heating power: 24 kW Current: 35

UNIT

Electrical box

TANK

Unit

On/Off

Heat/Cool inversion

Pump

control

Supplementary

heating

authorization

3rdstage

authozisation

Electronic

controller

Water temperature sensor (installation return)

Heating control electrical box

Page 19

OPERATION

A - PRESENTATION

•

The following are located inside the heating control box:

- the power switch to which the electric heating power supply is connected,

- the power outgoing feeders, protected by circuit breakers, supplying electrical power to the immersion heaters,

- the 2-stage electronic controller handling the operation of the electric heater and controlling the unit (with its water circulation pump) according to:

. the On/Off and Heating / Cooling selection

made on the remote control,

. the system’s water temperature (installation

return) measured by a probe.

• The potentiometers used to set the various thresholds are located under the cover of the controller’s front panel.

30 31

32 33

10 13

34S156

R1 R2 GR

Chaud

Heat

Froid

Cool

36 39

30 45

14 16

10 20

29 31

25 35

DL3 DL4 DL5

DL2DL1

AJ1

appoint

AJ2

offset

AJ3

heating

limit

AJ4

cool

ing

limit

Potentiometer AJ1 AJ2 AJ3 AJ4

Function

Electric heater

stage

cut-in temperature

Electric heater

stage

cut-in offset

Unit

authorization

threshold

in heating mode

Unit

authorization

threshold

in cooling mode

Factory settings 38°C 5 K 15°C 25°C

Regulation

power

supply

(230V)

stage

command

stage

command

Water

circulating

pump

control

Electric

heater 2

stage ON

indicator

Electric

heater 1

stage ON

indicator

Mode indicator

(by remote control)

Unit On indicator

Unit

command

Remote

control

Water temperature probe

(installation return)

On/Off

HEA

COOL

Page 20

B - WATER TEMPERATURE PROBES

(heating option)

• CTN type 3 kΩ at 25°C.

• Probe defect: If the temperature value measured is outside of the measurement range (-20

°C to +84°C), the indicator

light of the selected mode begins to flash and the

and R2 heating control outputs are disabled.

C - HEA

TING MODE

• With the remote mode inversion contact being closed ("Heating" indicator of the controller on), the closure of the remote On/Off contact:

- activates the water circulation pump.

- activates the unit in heating mode, provided that the water temperature is greater than the corresponding adjustable cut-in threshold

AJ3.

- the unit "on" indicator

GR thus comes on. (If the unit is solicited and the temperature is lower than the threshold, this indicator flashes).

authorizes the auxiliary heating outputs to function in accordance with the diagram opposite.

•

NOTE:

- The cut-in of each of the auxiliary stages is signaled by the indicator light (R1 and R2).

- The cut-in of the 2ndstage is timed at 5 min. (during this time period, the corresponding indicator light flashes).

• The opening of the remote On/Off contact causes the time delayed shutdown of the water circulation pump (5 min.) and the immediate shutdown of the unit and auxiliary stages. The corresponding indicator lights are thus off.

D - COOLING MODE

• With the remote mode inversion contact being open (the controller’s “Cooling” indicator on), the closure of the remote On/Off contact:

- activates the water circulation pump.

- Activates the unit in cooling mode, provided that the water temperature is less than the cut-in threshold:

- Unit operation is restricted if the water temperature is greater than 35°C.

- Operation is authorized for

only 30 minutes if the temperature is greater than the adjustable threshold AJ4. This

time delay is reinitialized if the stop signal is present or if the temperature is greater than 35°C.

- The unit "on" indictor light GR glows steadily if the unit is activated. (If the unit is solicited and the temperature is greater than the threshold, this indicator flashes).

•

The opening of the remote On/Of

f contact causes the time delayed shutdown of the water circulation pump (5 minutes)

and the immediate shutdown of the unit. The unit "on" indicator

GR is thus off.

• In this mode, the heating outputs are disabled.

Temperature (°C)

-10 16,600 0 9,796

10 5,971 20 3,748 25 3,000 30 2,417 40 1,598 50 1,081 60 747

Ohmic value (Ohm)

1 K 1 K

Water temperature

AJ1 auxiliary heating set point

Shift AJ 2

stage

Page 21

7 - STARTING

7.1 - CHECK

• That all hydraulic connections are properly tightened and that the hydraulic system functions correctly:

- purge the circuits,

position of valves,

- hydraulic pressure (1.5 to 3 bar).

•

That there are no leaks.

•

That the machine is stable.

• That the power cables are well fixed to their connection terminals (loose terminals can cause heat build-up on the terminal

board).

•

That the electric cables are well insulated from any sections of sheet metal or metal parts which could damage them.

• That electrical wiring is a safe distance from refrigeration lines.

• That probe, control and power cables are properly separated.

• That the machine is earthed.

• That there are neither tools nor other foreign objects in the unit.

7.2 - STARTING-UP THE UNIT

• Power up the unit.

•

Start the unit. See § 5.5.

CAUTION: As the unit's power supply is three-phase, make sure that the phase rotation order is correct. If the phase order is

not respected, the phase order controller KA1 prevents the unit from operating (OK indicator light off) and causes an alarm. To fix this, simply invert the 2 phases.

7.3 - CHECKS TO BE MADE

• Water flow-rate.

The generator is equipped with 1/4 SAE pressure taps upstream and downstream from the circulating pump to enable the pressure loss to be measured using a hydraulic pressure gauge. Use the circulating pump curves in paragraph 10 to determine the water flow rate.

Note:

The generator’s water output must be ensured at all times (particular attention should be paid in the case of control of the terminal units on 2-way valve).

• Pump rotation direction. Should a problem occur, invert 2 phases on the pump's power supply.

•

Purge the hydraulic system, with special attention given to the pump.

• Water circuit pressure.

• Filter cleanliness.

• Check the HP and LP pressures (route the pressure tap lines through the hole provided, see

§ 2.2) and check the intensities on the commissioning sheet.

• Check control system operation.

Before doing any work on the installation, make sure that it is switched off and that access to it is prevented.

Any work must be carried out by personnel qualified and authorised to work on this type of machine.

IMPORTANT

IMPORTANT:

• The unit's electronic control features a frost protection device that automatically starts the water circulating pump depending on the outside temperature (threshold: 0°C), even if the unit is turned off.

• When the unit is turned on, It is thus important to make sure that the hydraulic circuit is ready to operate (purge, water pressure, position of valves).

•

If antifreeze is added (monopropylene glycol), a minium rate of 15% to 20% is needed to avoid any risk of corrosion

If the installation includes a supplementary boiler, make sure that the antifreeze used will not damage it.

Filling and purge

Draining

Page 22

8 - MAINTENANCE INSTRUCTIONS

8.1 - MAINTENANCE

All equipment must be properly maintained in order to provide optimum performance over time. Faulty maintenance can result in the cancellation of the product guaranty. Depending on the products, maintenance operations consist in the cleaning of filters (air, water), internal and external exchangers, casings, and the cleaning and protection of condensate tanks. Treating odours and the disinfection of room surfaces and volumes also contributes to the cleanliness of the air breathed by users.

•

Carry out the following operations at least once a year (the frequency depends on the installation and operating conditions):

- check for leaks on the refrigerating circuit,

- check for traces of corrosion or oil stains around the refrigerating components,

- inspect the composition and the condition of the coolant and check that it does not contain traces of refrigerating fluid,

- cleaning the exchangers,

- checking the wear parts,

- checking the operating instructions and points,

- check the safety devices: particularly check that the high and low-pressure controllers are properly connected on the refrigerating circuit and that they disengage the electrical circuit if triggered,

- de-dusting the electrical equipment cabinet,

- checking that the electrical connections are secure,

- checking the earth connection,

- check the hydraulic circuit (clean the filter, water quality, purge, flowrate, pressure, etc.),

- verification of the unit's safety valve (and that of the tank, if any).

8.2 - GENERATOR SHUT-DOWN DURING WINTER

• 2 possibilities:

1) Drain the unit and disconnect the power supply

2) Unit full of water and power on: as the unit is equipped with an antifreeze device which actuates the water circulating

pump when the temperature drops below zero, it is imperative to ensure that the water can circulate within the unit.

• Before doing any work on the machine, make sure that it is switched off and locked out, with special attention given in the case of a tank with supplementary heating (different power supplies).

• Any work must be carried out by personnel qualified and authorised to work on this type of machine.

• Prior to all maintenance and servicing on the refrigerating circuit, one must first shut down the unit then wait a few minutes before installing temperature or pressure sensors. Certain equipment, such as the compressor and piping, may reach temperatures above 100°C and high pressures may lead to serious burns.

IMPORT

ANT NOTE

9 - TROUBLESHOOTING

• All maintenance and servicing operations on the refrigerating circuit must be conducted in accordance with standard trade practices and safety rules: recovery of the refrigerant, inert shielded (nitrogen) brazing, etc…

• All brazing operations must be conducted by qualified welders.

•

For equipment loaded with R 407 C, refer to the specific instructions at the beginning of the installation manual.

•

This unit is equipped with pressurized equipment, for example piping. Use only genuine parts listed in the spare parts list for replacing defective refrigeration components.

• Pipes may only be replaced by copper tubing in compliance with standard NF EN 12735-1.

•

Leak detection, in the case of pressure testing:

- Never use oxygen or dry air, as the risk of fire or explosion is present.

- Use dehydrated nitrogen or a nitrogen and refrigerant mix indicated on the manufacturer's plate.

For units equipped with pressure gauges, the test pressure must not exceed the gauges' maximum allowable pressure rating.

• All part replacement with other than genuine parts, all modifications of the refrigerating circuit, all replacement of refrigerant by a fluid other than that indicated on the manufacturer's plate, all use of the unit outside the application limits defined in the documentation, shall result in the cancellation of PED CE marking compliance which shall fall under the liability of the individual who carried out these modifications.

•

The technical information, relative to the safety requirements of the various applicable directives, is indicated on the manufacturer's plate of the unit and mentioned on the 1

page of this manual.

Page 23

100

150

200

250

300

400

350

214683 579

100

150

200

250

300

400

450

350

214683 579

PHRV 22

4.21 m

PHRV 25

4.68 m

PHRV 32

5.94 m

PHRV 36

7.20 m

10 - CIRCULATING PUMP CURVES

PHRV 22/25

Water flowrate (m3/h)

Manometric delivery head of the pump (kPa)

PUMP TYPE MUH 503

PHRV 32/36

Water flowrate (m3/h)

Manometric delivery head of the pump (kPa)

PUMP TYPE MUH 504

Page 24

11.1 - COOLING MODE

11 - PRESSURE CURVES

8 10 12 14 16 18 20

25°C 15°C

35°C

45°C

6 7 8 9 10 11 12 13 14 15

25°C 15°C

35°C

43°C

6 7 8 9 10 11 12 13 14 15

25°C 15°C

35°C

45°C

6 7 8 9 10 11 12 13 14 15

°C

15°C

35°C

°C

3.5

4.5

5.5

6.5

8 10 12 14 16 18 20

25°C 15°C

35°C

45°C

3.5

4.5

5.5

6.5

6 7 8 9 10 11 12 13 14 15

25°C 15°C

35°C

43°C

3.8

4.2

4.6

5.0

5.4

5.8

6.2

6 7 8 9 10 11 12 13 14 15

25°C 15°C

35°C

45°C

7 8 9 10 11 12 13 14 15

25°C 15°C

35°C

45°C

HIGH PRESSURE

LOW PRESSURE

PHRV 22

PHRV 25

PHRV32

PHRV 36

Water outlet temperature (°C)

Low pressure (relative bar)

Outside temperature (

°C)

Water outlet temperature (°C)

High pressure (relative bar)

Outside temperature (

°C)

Water outlet temperature (°C)

Low pressure (relative bar)

Outside temperature (°C)

Water outlet temperature (°C)

High pressure (relative bar)

Outside temperature (°C)

Water outlet temperature (°C)

Low pressure (relative bar)

Outside temperature (°C)

Water outlet temperature (°C)

High pressure (relative bar)

Outside temperature (°C)

Water outlet temperature (°C)

Low pressure (relative bar)

Outside temperature (°C)

Water outlet temperature (°C)

High pressure (relative bar)

Outside temperature (°C)

Page 25

11.2 - HEATING MODE

-12 -10

-8 -6 -4 -2 0 2 4 6 8 10 12 14

35 C

50 C 45 C

-10 -5 0 5 10 15

35°C

50°C 45°C

-10 -5 0 5 10 15

35°C

50°C 45°C

-10

-5 0 5 10 15

35°C

50°C 45°C

-12 -10

1.5

2.5

3.5

4.5

-8 -6 -4 -2 0 2 4 6 8 10 12 14

35 C

50 C 45 C

-10 -5 0 5 10 15

1.5

2.5

3.5

4.5

35°C

50°C 45°C

-10 -5 0 5 10 15

35°C

50°C 45°C

-10

-5 0 5 10 15

35°C

50°C 45°C

HIGH PRESSURE

LOW PRESSURE

PHRV 22

PHRV 25

PHRV32

PHRV 36