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Technibel PHRIE Series Service Manual
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Technibel PHRIE Series Service Manual

Inverter monoblock air to water heat pump medium temperature refrigerant r410a
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SERVICE MANUAL
PHRIE / PHIE
INVERTER MONOBLOCK
AIR TO WATER HEAT PUMP
MEDIUM TEMPERATURE
Refrigerant R410A
For applications with electrical support heater or boiler back-up
Jun. 2015
10 12 211 – GB – 06
1

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Summary of Contents for Technibel PHRIE Series

  • Page 1 SERVICE MANUAL PHRIE / PHIE INVERTER MONOBLOCK AIR TO WATER HEAT PUMP MEDIUM TEMPERATURE Refrigerant R410A For applications with electrical support heater or boiler back-up Jun. 2015 10 12 211 – GB – 06...
  • Page 3 WARNING: Before carrying out any work on the machine, make sure that its power supply is switched off and the access to it is prevented. Any work must be carried out by personnel qualified and authorized to work on this type of machine.
  • Page 4 ▬ CONTENTS ▬ SPECIFICATIONS Application - Use Presentation & Components Technical characteristics Physical characteristics Description Heat pumps capacities Available pressures on water circuit Sound levels System control solutions FRIGORIFIC & HYDRAULIC PART - DIAGRAMS / MAIN COMPONENTS Frigorific & Hydraulic diagrams Frigorific circuit –...
  • Page 5 SERVICE PROCEDURES Frigorific circuit alarms Hydraulic circuit alarms System control alarms Boards replacement Sensors characteristics Electric heater replacement for units 095 & 125 MAINTENANCE CONTROLLER FUNCTIONS - PARAMETERS Presentation Standard display and settings - Connection to A2 control board Advanced display and setting - Connection to A3 power board...
  • Page 6 PART 1 – TECHNICAL SPECIFICATION Application - Use Presentation & Components Technical characteristics Physical characteristics Description Heat pumps capacities Available pressures on water circuit Sound levels System control solutions...
  • Page 7 1.1 – APPLICATION - USE • Hot water generator for residential heating exclusively in the scope of TECHNIBEL systems 1.2 – PRESENTATION & COMPONENTS 1.2.1 DESCRIPTION...
  • Page 8 1.2.2 ELECTRICAL EQUIPEMENT • According EN 60 335-2-40. • INVERTER technology control • Staged electric support heater (with thermal overload protection and water pressure switch). • Water flow detector. • System control board.
  • Page 9 1.3 – TECHNICAL CHARACTERISTICS The specifications are valid for a device in working order with clean heat exchanger. Note: • Water circuit pressure: Minimum = 1.5bar, Maximum = 2.5Bar. • Maximum allowable water temperature at the inlet of the heat pump when off is 75°C. •...
  • Page 12 1.3.2 THREE PHASES MODELS...
  • Page 16 1.3.3 OPERATING LIMITS • Automatic devices of the control reduce or prohibit operation of the appliance outside the following limits. HEATING MODE OPERATING LIMITS:...
  • Page 17 1.4 – PHYSICAL CHARACTERISTICS...
  • Page 19 1.5 – DESCRIPTION 1.5.1 SINGLE PHASE MODELS...
  • Page 20 1.5.2 THREE PHASES MODELS...
  • Page 21 1.6 – HEAT PUMP CAPACITIES 1.6.1 HEATING / COOLING CAPACITIES See technical manual 10 12 202 1.6.2 CAPACITY CORRECTION ACCORDING GLYCOL RATIO IMPORTANT: Use monopropylen glycol. A minimum rate of 15 to 20% is needed to avoid any risk of corrosion. Curves use principle: Choose the percentage of glycol according to the minimum temperature in order to protect the hydraulic circuit against frost and then determine the coefficients to be applied to the capacity of the unit, the water flow rate and the pressure drop.
  • Page 24 1.8 – SOUND LEVELS Power level Sound-pressure Reference standard: level (dBA) Lw (dBA) Measurements as per standard EN 12 102. Model Measuring method: reverberating chamber Max. Puissance Nominal Max. capacity maximum capacity capacity Sound-pressure level: PHRIE 095 Unit installed outdoors (free field) on a reflective PHIE 095 surface.
  • Page 25 Sound power level spectrum: Tests conditions: -Unit at nominal capacity -Air temperature: 7°C (DB) -Water inlet temperature: 47°C -Water outlet temperature:55°C PHRIE 95 PHRIE 125 frequency (Hz) Lw dB(A) frequency (Hz) Lw dB(A) 38,3 44,4 35,6 41,5 48,4 51,4 50,5 46,3 51,3 59,2...
  • Page 26 PHRIE 155 PHRIE 175 PHRIE 195 frequency (Hz) Lw dB(A) frequency (Hz) Lw dB(A) frequency (Hz) Lw dB(A) 52,4 57,6 62,4 49,7 52,6 53,3 53,5 53,3 55,8 54,4 52,6 46,7 51,2 55,2 46,8 50,5 53,7 49,2 52,9 56,1 54,9 56,1 56,9 60,7 62,2...
  • Page 27 PHRIE 257 PHRIE 307 frequency (Hz) Lw dB(A) frequency (Hz) Lw dB(A) 52,7 51,1 44,3 50,8 50,1 52,9 48,5 53,7 50,2 52,4 57,8 54,4 55,8 56,3 56,3 57,5 62,4 61,1 61,9 60,3 1000 54,2 1000 57,7 1250 53,5 1250 55,9 1600 53,7 1600...
  • Page 28 1.9 – SYSTEM CONTROL SOLUTIONS It features 2 parts: - Monitoring / control assembly with INVERTER technology, for the thermodynamic device. Built into the heat pump, it controls: - The variable-speed compressor. - The variable-speed fan. - The electronic expansion valve and the cycle inversion valve. - The water circulating pump (with frost protection and anti-sticking functions).
  • Page 29 1 Radiators Zone System control kit includes: - system remote control box, - outdoor temperature sensor, - system control cabinet, (to be installed in a sheltered technical room) - system water temperature sensors, - system control manuals. For all details concerning system control operation, please refer to the corresponding technical manual 10 12 201 Note: With both system controls, for 1 Zone applications, possibility to activate a 2 zone with electric convectors.
  • Page 30 PART 2 – FRIGORIFIC & HYDRAULIC 2.1 Frigorific / Hydraulic diagrams 2.2 Frigorific circuit – Main components description 2.2.1 Compressor 2.2.2 Electronic expansion valve 2.2.3 Four way valve 2.2.4 Fan motor 2.2.5 Pressure sensor 2.3 Hydraulic circuit – Main components description 2.3.1 Water circulating pump 2.3.2 Water flow switch 2.3.3 Pressurized expansion vessel...
  • Page 31 2.1 – FRIGORIFIC / HYDRAULIC DIAGRAMS 2.1.1 DIAGRAMS FOR MODELS 095/125/155/157/175/177/195/197...
  • Page 32 2.1.2 DIAGRAMS FOR MODELS 257/307...
  • Page 33 2.2 – FRIGORIFIC CIRCUIT – MAIN COMPONENTS DESCRIPTION 2.2.1 COMPRESSOR CONTENT Unit Type SANYO Hermetic rotary compressor C-6RVN93 C-6RVN103 C-9RVN273 C-9RVN273 C-9RVN273 C-9RVN273 C-9RVN273 C-9RVN273 C-9RVN273 C-9RVN393 Reference Rated output 1000 2700 2700 2700 2700 2700 2700 2700 3900 Comp. Cooling natural Power source DC inverter...
  • Page 34 Connection diagram for 155/175/195 : Connection diagram for 157/177/197/257/307 : (257/307)
  • Page 35 2.2.2 ELECTRONIC EXPANSION VALVE CONTENT UNIT Type SAGINOMIYA type KV Electronic Expansion Valve – bi-flow Reference UKV 18D UKV 25D Motor Permanent magnet type direct operating stepper motor – 480 steps Coil supply V dc 12 Vdc Insulation class Enclosure IP 66 Motor reference A053...
  • Page 36 2.2.3 FOUR WAY VALVE CONTENT UNIT Type SAGINOMIYA 4 – Way valve STF Reference STF-0306G STF-0401G STF-0712G Coil type Coil supply V ac 220 – 240V 50Hz 6W Insulation class Class B Coil presentation: 1.34 kΩ Actuated in Heating mode ...
  • Page 37 2.2.4 FAN MOTOR CONTENT UNIT Type SANYO DC brushless fan motor Reference SIC-71FW-D890-3 SIC-71FW-D890 - 1A (lower) / 2A (upper) SIC-71FW-D8120- 5 (lower)/ 6 (upper) Rated output Voltage (nominal) V dc Vm = 280 Vdc Current limit Im (lim) = 2.1A (nominal) Speed (nominal) Pole number...
  • Page 38 Control : 1 = Vcc 2 = PG 3 = Vsp Power : Speed control input voltage Vsp : 1 = Vm 2 = not used 3 = GND Revolution pulse output :...
  • Page 39 2.2.5 PRESSURE SENSOR Note: Used to measure refrigerant circuit pressure on water heat exchanger (sensor “E2P”). The pressure signal is converted by A2 board in equivalent temperature.
  • Page 40 2.3 – HYDRAULIC CIRCUIT – MAIN COMPONENTS DESCRIPTION 2.3.1 WATER CIRCULATING PUMP CONTENT Unit Type WILO – STRATOS PARA Reference 25/1-7 25/1-8 25/1-12 High Efficiency electronically commutated brushless motor – Control module integrated Control Power supply 230 V / 1 / 50Hz Protection class IP 44 Insulation class...
  • Page 41 Water flow rate adjustment: • Connect a hydraulic pressure gauge to the ¼’’ SAE pressure taps at the inlet and the outlet of the circulating pump in order to measure the differential pressure. • Adjust the red knob to the maximum pressure •...
  • Page 42 Unit : Wilo-Stratos Para 25/1-12 Differential pressure ∆P (mW) Water flow – m3/h • Then adjust the red knob to the value ∆P for the requested water flow rate Q as per the following formula: ∆P = (Q / Qm)² x ∆Pm For example: With unit type 155 –...
  • Page 43 Failure matrix:...
  • Page 44 Failure handling:...
  • Page 45 2.3.2 WATER FLOW SWITCH Factory mounted: CONTENT Unit Type IMIT / ALCO – AFS Reference AFS 72 AFS 72 AFS 81 Setting – ON point l/mn Setting – OFF point l/mn Body Plastic – Nylon 66 GF30% Brass Pipe connection 1’’...
  • Page 46 After sales kit 9901280 for models 095 & 125: CONTENT Unit SIKA / VKX Type Reference VKX 20M Setting – ON point l/mn Setting – OFF point l/mn Body PPO Noryl GFN3 Connection ¾’’G Pipe connection Contact rating 230Vac - 26 VA max. Protection IP 65 Flow switch SIKA VKX 4.5 l/mn...
  • Page 47 2.3.3 PRESSURIZED EXPANSION VESSEL CONTENT Unit Volume Max. operating pressure (water) Pre-charge 0.75 0.75 pressure (air) Pre-charge valve Maintenance: • Before maintenance or control, make sure that: -the system is off, cooled and not pressurized, -power supply is off, -vessel is empty. •...

  • Page 48: Table Of Contents

    PART 3 – ELECTRIC 3.1 Electrical diagrams 3.2 Main components description 3.2.1 Control synoptic – heat pump with electrical support heater 3.2.2 Control synoptic – heat pump in boiler back up 3.2.3 System control board - A1 3.2.4 Communication & control board CWC2 – A2 3.2.5 Refrigerant circuit power board for units 095 / 125 –...

  • Page 49: Electrical Diagrams

    3.1 – ELECTRICAL DIAGRAMS 3.1.1 MODEL 095 (2 HP) – 230V Single phase...
  • Page 50 3.1.2 MODEL 125 (3 HP) – 230V Single phase...
  • Page 51 3.1.3 MODELS 155/175 (4/5 HP) – 230V Single phase...
  • Page 52 3.1.3 MODEL 195 (6 HP) – 230V Single phase...
  • Page 53 3.1.3 MODELS 157/177/197 (4/5/6 HP) – 400V Three phases...
  • Page 54 3.1.3 MODELS 257/307 (8/10 HP) – 400V Three phases...
  • Page 55 3.1.4 SYMBOLS...

  • Page 56: Main Components Description

    3.2 – MAIN COMPONENTS DESCRIPTION 3.2.1 CONTROL SYNOPTIC FOR HEAT PUMP + ELECTRICAL SUPPORT HEATER APPLICATIONS...
  • Page 57 3.2.2 CONTROL SYNOPTIC FOR HEAT PUMP IN BOILER BACK UP APPLICATIONS...
  • Page 58 Important: For “Boiler back up” applications, 2 modifications have to be performed on the heat pump: 1) The system control board A1 (and the electric support heater) included in the heat pump must be de-activated. To do this (with power supply switched off), remove the connectors CX2 and CX3 at the bottom of the electrical plate. 2) The heat pump water temperature control sensor is connected to the input “TW1”of A2 (CCWC2) control board.

  • Page 59: System Control Board A1

    3.2.3 SYSTEM CONTROL BOARD A1 • Mounted in the heat pump, it controls the heat pump and its electric heater. • It is connected to the system remote control by the communication line (BUS). Note: please refer to specific system control service manual for system operation details. Software versions for units in “FA”...
  • Page 60 3.2.4 COMMUNICATION & CONTROL BOARD FOR HEAT PUMP A2 (CWC2) • It ensures 3 functions: - Communication interface between system control and heat pump control. - Management of the heat pump heat exchanger and water circulating pump. - Possible base de-ice electric heater control. IU EEPROM...
  • Page 61 PCB switches / configuration & alarms: • This board is fitted out with 2 “SW1” and “SW2” microswitches as well as “JTP” and “JPC” jumpers for the configuration: - SW1 - 1 Micro-switch: In “ON” position (factory setting), the circulating pump starts automatically if the outdoor temperature is below 0°C to prevent the hydraulic circuit from freezing.
  • Page 62 Forced circulating water pump operation: - Make sure that the hydraulic circuit is ready (no leakage, pressure, valves open…) - Press during 5 seconds the “RESET” button of the CWC2 control board. The circulating pump starts (if it was stopped). This action has the priority to any control signal from the system. The circulating pump indicator light “PP”...
  • Page 63 3.2.5 REFRIGERANT CIRCUIT POWER BOARD FOR UNITS 095 / 125 A3 board A056VH (up side) FOR UNIT 095 « Power » LED EEPROM LED HIC temperature sensor plug...
  • Page 64 A3 board A056VH (bottom side) FOR UNIT 095 Board ctrl signal (OC) Board programming PAC checker (ROM) 4 way valve (20S) Service Remocon (RC-P) CHECK Expansion valve (MOV)
  • Page 65 A3 board A086VH (up side) FOR UNIT 125 « Power » LED EEPROM LED HIC temperature sensor plug...
  • Page 66 A3 board A086VH (bottom side) FOR UNIT 125 Board ctrl signal (OC) Board programming 4 way valve (20S) PAC checker (CN012 ROM) Service Remocon (RC-P) Expansion valve (MOV)
  • Page 67 UNITS 095 / 125 – COMMENTS • S002 rotary switch (10 positions, black) / S003 DIP switches (2P, blue): Address for split air to air units – not used for the application. The factory setting below must not be changed : •...

  • Page 68: Refrigerant Circuit Power Boards For Units 155 / 175 / 195 - A3 + Hic

    3.2.6 REFRIGERANT CIRCUIT POWER BOARDS FOR UNITS 155 / 175 / 195 A3 board A116VH for units 155 / 175 A3 board A166VH for unit 195 Fans ctrl 4 way valve (20S) « Power » LED Service Remocon (RC-P CN032) Fans supply EEPROM LED Expansion valve...
  • Page 69 UNITS 155 / 175 / 195 – COMMENTS • S002 rotary switch (10 positions, black) / S003 DIP switches (2P, blue): Address for split air to air units – not used for the application. The factory setting below must not be changed : •...
  • Page 70 HIC board for units 155 / 175 /195 Hybrid Integrated Circuit for inverter compressor Diode bridge HIC board HIC temperature sensor plug...
  • Page 71 3.2.7 A3 REFRIGERANT CIRCUIT POWER BOARD FOR UNITS 157 / 177 / 197 A3 board A166VH8 Power relay Ctrl (MG-SW) 4 way valve (20S) « Charge LED » Fans ctrl Fans supply « Power » LED EEPROM LED Expansion valve(MOV) Board ctrl signal (OC) Service Remocon (RC-P CN032)
  • Page 72 UNITS 157 / 177 / 197 – COMMENTS • S002 rotary switch (10 positions, black) / S003 DIP switches (2P, blue): Address for split air to air units – not used for the application. The factory setting below must not be changed : •...
  • Page 73 HIC board for units 157 / 177 /197 Hybrid Integrated Circuit for inverter compressor Diode bridge HIC board HIC temperature sensor plug...
  • Page 74 3.2.8 REFRIGERANT CIRCUIT POWER BOARD FOR UNITS 257 / 307 A3 control board A246VH8 Cranckcase heater (20S) 4 way valve (20S) Service Remocon (RC-P CN039) Power relay Ctrl (MG-SW) Board ctrl signal (OC) Board programming PAC checker (ROM) Fan control Fan supply Fan control Expansion...
  • Page 75 UNITS 257 / 307 – COMMENTS • S002 rotary switch (10 positions, black) / S003 DIP switches (2P, blue): Address for split air to air units – not used for the application. The factory setting below must not be changed : •...
  • Page 76 HIC board for units 257 / 307 Hybrid Integrated Circuit for inverter compressor Diode bridge HIC board...
  • Page 77 A4 Supply and filter board for units 257 / 307...

  • Page 78: Electric Support Heater

    3.2.9 ELECTRIC SUPPORT HEATER Content Unit Number of 3 in parallel 3 – star coupling elements Nominal voltage 230V - on each heater element Capacity 3 x 1.5 3 x 2 3 x 3 Body material Stainless steel 304L Heating element Stainless steel Incoloy 800 material Water pressure switch...
  • Page 79 PART 4 – INVERTER CONTROL SPECIFIC FUNCTIONS 4.1 Heat pump water temperature control 4.2 Compressor frequency control 4.3 Max & Min frequency control 4.4 Current release control 4.5 Cooling high-load prevention control ing high-load prevention control 4.6 Heat 4.7 Freeze prevention control in cooling mode 4.8 Discharge temperature control 4.9 Air heat exchanger defrost control 4.9.1 Flow chart of defrost control...
  • Page 80 4.1 HEAT PUMP WATER TEMPERATURE CONTROL Performed by A3 board • The Inverter gestion is working or waiting in accordance with the shown below. T= T – T : Water temperature from the installation – read by sensor TW1. : Resulting water temperature Setpoint Y Note 1: 10-minute mask time of the Inverter Gestion from WORKING to WAITING to avoid cycling.
  • Page 81 4.2 COMPRESSOR FREQUENCY CONTROL Performed by A3 board The frequency of the compressor's inverter is limited by either of the following controls depending on whether the cooling or heating mode is in operation. • Cooling Mode : · Water Inlet temperature control ·...
  • Page 82 4.4 CURRENT RELEASE CONTROL Performed by A3 board The inverter frequency is controlled so that the current value for the inverter compressor is less than the value listed in the table below. This current release control is required in order to prevent abnormal temperature increases in the inverter circuit located within the electrical box and avoid HIC board damages.
  • Page 83 4.6 HEATING HIGH-LOAD CONTROL Performed by A3 board This system controls the inverter frequency when the high pressure's abnormal increase and high-load operating prevention occur in the heating mode. In accordance with the temperature of the water heat exchanger temperatures sensor (E1, E2), such controls are performed as to limiting the increase of inverter frequency, decreasing it or halting operation of the compressor.
  • Page 84 4.8 DISCHARGE TEMPERATURE CONTROL Performed by A3 board The following control is performed to prevent the discharge temperature from rising abnormally in order to protect the inverter compressor. In accordance with the temperature of the discharge sensor TD, such controls are performed as to limiting the increase of inverter frequency, decreasing it or halting operation of the compressor.
  • Page 85 4.9 AIR HEAT EXCHANGER DEFROST CONTROL Performed by A3 board 4.9.1 FLOWCHART OF DEFROST CONTROL (1) (2) (3)
  • Page 86 4.9.2 FROST ADHERENCE DETECTION (1) If the following conditions are satisfied during heating operations, it is regarded as "frost adherence is detected". • Frost adherence detection is performed in accordance with the outdoor air temperature (TO) and the outdoor heat exchanger temperature sensor (C1). Note: Frost adherence detection is not performed for the first 15-minute of compressor operations in the normal heating mode.
  • Page 87 4.10 FAN CONTROL Performed by A3 board • Cooling Mode: The appropriate rotations per minute for the fan are determined in accordance with the outdoor air temperature and the frequency of the compressor inverter. The fan step is controlled between a range of W1 (Step 1) and WF (Step 16). •...
  • Page 88 - Check that the “W” water flow rate indicator light is on. Other functions: • Time delay: Water pump stop is time delayed (3 mn), but immediate in the case forcing is stopped. • Anti-sticking: automatic operation for 5 seconds every 24 hours. •...
  • Page 89 4.16 HEAT PUMP STAND ALONE OPERATION Performed by A2 board - see presentation § 3.2.4 For the maintenance and commissioning operations, the heat pump can be operated in a “stand-alone” configuration, without system control, using the specific maintenance remocon (see PART 6) and/or external voltage free contacts.
  • Page 90 PART 5 – SERVICE PROCEDURES WARNING: Before carrying out any work on the machine, make sure that its power supply is switched off and the access to it is prevented. Any work must be carried out by personnel qualified and authorized to work on this type of machine. 5.1 Frigorific circuit alarms 5.1.1 List of alarms 5.1.2 Alarm messages display...
  • Page 91 5-1 FRIGORIFIC CIRCUIT ALARMS Managed by A3 board and partially by A2 board. (*) see § 5.1.3 5.1.1 LIST OF ALARMS Type  Designation  Code  Action  Reset (*)  -Poor reception of the signal on the maintenance remocon Automatic Maintenance stop -Auto address not completed (then manual) remocon detects error signal from...
  • Page 92 5.1.2 ALARM MESSAGES DISPLAY 2 ways for reading alarm messages: -with maintenance remocon connected to A2 board (connector RC). Alarm code is directly displayed. See details PART 6. -with LED 1 & LED 2 on A3 board. LED 1 & LED 2 display:...
  • Page 93 Alarm Code is composed of two parts. First part is a letter, second part is a number: The blinking of LED 1 indicates the code letter The blinking of LED 2 indicates the number LED 1 LED 2 Number of Blinks Alarm Code Letter Number of Blinks Alarm Code Number...
  • Page 94 5.1.3 ALARMS RESET Performed by A2 board Heat pump faults coming from the frigorific circuit are classified in 2 categories: - “Manual” reset faults: Memorized by board A2 as soon as they appear and transmitted to the system control. The A2 board alarm light “AL” comes on steady. Heat pump is stopped until alarm is reset.
  • Page 95 5.1.4 SYMPTOMS & PARTS TO INSPECT Serial communication errors & mis-setting   Maintenance remocon Alarm clearing Judgement conditions Judgement and correction alarm contents condition   display Serial signal receiving failure Maintenance 1. Check remocon connection Remocon detected Automatic 2. Check address on A2 board error signal from recovery 3.
  • Page 96 Sensors failure   Maintenance remocon Alarm clearing Judgement conditions Judgement and correction alarm contents condition display Disconnection, open   circuit or short 1. Check “liquid line” temp. sensor E1/S7 circuit Automatic Open circuit or short circuit 2. Check connection in H/E temp. sensor recovery 3.
  • Page 97 Mis-setting Maintenance remocon Alarm clearing Judgement conditions Judgement and correction alarm contents condition display A2 board judged A2 and A3 boards incompatible 1. Check setting parameters in the EEPROM of A2 Power reset settings are with A3 board 2. Check A2 board recovery incompatible (wrong spare part or...
  • Page 98 Activation of protective device   Maintenance remocon Alarm clearing Judgement conditions Judgement and correction alarm contents condition   display Abnormal discharge • Discharge temp. TD exceeds X°C 1. Check refrigerant circuit (leakage) temperature: X = 111°C : For models Recovery 2.
  • Page 99 Activation of protective device Maintenance remocon Alarm clearing Judgement conditions Judgement and correction alarm contents condition display 1.Refrigerant cycle abnormal overload operations 2.Screws connecting the HIC Recovery Over-current error Inverter stops after fault is detected. circuit between the heat at restart sink (HIC radiator) are loose 3.Faulty cooling of heat sink (HIC) 4.Check A3 PCB wiring...
  • Page 100 5.1.5 ALARM DIAGNOSIS: “E31”-“F04”-“F06”-“F07”-“F08”-“F12”-“P22”-“P26”-“P29” For models 095/125/155/157/175/177/195/197:...
  • Page 101 For models 257/307...
  • Page 102 For models 095/125/155/157/175/177/195/197: Note about built-in fan motor power supply circuit checking: Must be done with unit power suplly switched off. Normally fan rotates without resistance. After having unplugged fan connector(s) from A3 board, connect a jumper on power line (blue and red wires) as shown below. Models 155/157/175/177/195/197 Models 095 / 125 Then rotate manually the fan;...
  • Page 103 For models 257/307 Note about built-in fan motor power supply circuit checking: Must be done with unit power suplly switched off. Normally fan rotates without resistance. After having unplugged fan connectors from A3 board, connect a jumper on power line (blue and red wires) as shown below. Then rotate manually the fan;...
  • Page 104 For models 095/125 Replace A3 PCB...
  • Page 105 For models 155/157/175/177/195/197...
  • Page 106 For models 257/307...
  • Page 107 For models 095/125...
  • Page 108 For models 155/157/175/177/195/197 Check diode bridge...
  • Page 109 For models 257/307 Check diode bridge...
  • Page 110 5.1.6 HIC (Hybrid Integrated Circuit) BOARD CHECKING Models 095/125: HIC is included on A3 PCB Models 157/177/197: Models 257/307:...
  • Page 111 5.1.7 DIODE BRIDGE CHECKING Use multimeter in position “diode test” • Single phase Between terminals Junction forward voltage drop Tester terminal + Tester terminal - 0.5 to 0.7 0.5 to 0.7 0.5 to 0.7 0.5 to 0.7 • Three phases Between terminals Junction forward voltage drop Tester terminal +...
  • Page 112 5-2 HYDRAULIC CIRCUIT ALARMS Managed by A2 board. Note: This kind of alarm can not be displayed by the maintenance remote control. 5.2.1 LIST OF ALARMS Type  Designation  LED  Action  Reset(**)  Automatic -No water flow Slow flashes Stop Activation of then Manual (once a second) protective...
  • Page 113 How to reset the alarm: Note : problem must be solved before final reset action. Alarm reset by pressing push button « RESET » on A2 board for 5 seconds Alarm reset by setting the system control in OFF position See detail in corresponding technical manual Alarm reset by switching off power supply...
  • Page 114 5.2.3 SYMPTOMS & PARTS TO INSPECT Hydraulic circuit defaults alarm display Alarm clearing Judgement conditions Judgement and correction LED W contents condition on A2 1.Check water circulating pump operation No water flow detected by flow switch 2. Check that circuit valves are Slow Water flow default in heat Manual reset if default lasts more than...
  • Page 115 5.2.4 A2 BOARD CHECKING Power supply : -main power supply 230Vac on terminals “U/N” -red LED “Power” lighted -fuses A2 board generates 3 control power supplies: • Supply 24Vdc : Can be checked on connector “E2P” (with no connection) – terminals 1/3: 20 <U< 26Vdc •...
  • Page 116 Sensors: -temperature values displayed on maintenance remote control -resistance value of temperature sensors – see tables § 5.5 Note: for input “E2P”, measured value is a pressure signal (coming from pressure sensor 0-50b 4/20mA) which is converted by A2 board in an equivalent temperature (displayed on maintenance remote control) Pressure sensor power supply 24Vdc nominal: on connector “E2P”...
  • Page 117 5-3 SYSTEM CONTROL ALARMS For details, please refer to the specific System Service Manual 1012212 Note: This kind of alarm can not be displayed by the maintenance remote control. For applications with electric support heater, system control part is managed by A1 board in the heat pump. For Boiler Back-up application, system control part is managed by the board installed in the cabinet of the specific control kit.
  • Page 118 Here below the system control alarms list concerning the heat pump itself Sensors failure   System ctrl Alarm clearing Judgement conditions Judgement and correction alarm contents condition display Disconnection, open circuit or short 1. Check water inlet temperature sensor S11 circuit Automatic SEin...
  • Page 119 5.3.2 ALARMS RESET Note: problem must be solved before final reset action. System alarm reset by setting the system control in OFF position See detail in corresponding technical manual Alarm reset by switching off power supply This action is recommended in case of problem of communication Cn...
  • Page 120 5.3.3 A1 BOARD CHECKING Power supply: -main power supply 230Vac on terminals “N/U” (block CN1) -red LED “T” lighted A1 board generates 2 control power supplies: • one regulated 5Vdc (+/- 0.5V) • one non regulated 10 / 16 Vdc – can be checked on terminals “H1/H3” (block CN5) Communication line: -terminals +/- (block CN4) : 10Vdc <U<...
  • Page 121 5-4 BOARDS REPLACEMENT WARNING: Before carrying out any work on the machine, make sure that its power supply is switched off and the access to it is prevented. Any work must be carried out by personnel qualified and authorized to work on this type of machine. 5.4.1 A2 BOARD REPLACEMENT IMPORTANT: Some setting data (parameters) specific to each type of heat pump are stored in the EEPROM on the (A2/CWC2) control board.
  • Page 122 5.4.2 A3 CONTROL & POWER BOARD REPLACEMENT WARNING: Certain boards are fit with power capacitors which can keep electrical and can be dangerous even after switch off. IMPORTANT: Some setting data (parameters) specific to each type of heat pump are stored in the EEPROM on the A3 board.
  • Page 123 Remove the PCB. Take care of power components covered with thermal paste Unit 095 Unit 125 Take out from the old board the EEPROM and possible wire jumpers. 10) Plug the EEPROM (and possible jumpers) on the specific socket of the new board. Respect position of the EEPROM on its socket (see picture below).
  • Page 124 FOR UNITS 155, 175 & 195: Procedure: Before replacing the board (A3), make sure that the unit is switched off (“Power” LED - red - is Off). Disconnect completely all wires and connectors from the board. Remove the PCB from the spacers Take out from the old board the EEPROM and possible wire jumpers.
  • Page 125 Make sure that micro switches and jumpers are in the right selection and position – refer to § 3.2.6. CN 015 in « short » position Install the new board on the electrical plate and connect it while respecting wiring diagram. Switch on again the unit.
  • Page 126 FOR UNITS 157, 177 & 197: Procedure: Before replacing the board (A3), make sure that the unit is switched off. Check also that “Charge” LED - red - is Off. Disconnect completely all wires and connectors from the board. Remove the PCB from the spacers Take out from the old board the EEPROM and possible wire jumpers.
  • Page 127 Make sure that micro switches and jumpers are in the right selection and position – refer to § 3.2.7. CN 015 in « short » position Install the new board on the electrical plate and connect it while respecting wiring diagram. Insert connectors CP1 and CP2 until it clicks (see phase 1).
  • Page 128 FOR UNITS 257 & 307: Procedure: Before replacing the board (A3), make sure that the unit is switched off. Check also that “Power” LED - red - is Off. « Power » LED Disconnect completely all wires and connectors from the board. Remove the PCB from the spacers Take out from the old board the EEPROM and possible wire jumpers.
  • Page 129 Plug the EEPROM (and possible jumpers) on the specific socket of the new board. Respect position of the EEPROM on its socket. Be careful when handling the EEPROM, as its pins can be easily bent. Make sure that micro switches and jumpers are in the right selection and position – refer to § 3.2.8. CN 003 in «...
  • Page 130 5.4.3 A4 POWER FILTER BOARD REPLACEMENT – For units 257 & 307 WARNING: This kind of board is fit with power capacitors which can keep electrical and can be dangerous even after switch off. Procedure: Before replacing the board A4, make sure that the unit is switched off. Check also on A4 board that “Charge”...
  • Page 131 5.4.4 HIC BOARD REPLACEMENT Procedure: Before replacing HIC board A4, make sure that the unit is switched off. Check also on A3 / A4 boards that “Power” and/or “Charge” LED - red - are Off. Disconnect completely all wires and connectors from the HIC board. Unscrew the 2 fixing screws of HIC on its heat sink.
  • Page 132 5-5 SENSORS CHARACTERISTICS In case of sensor replacement, take care to mount it correctly on its support. Use thermal paste if necessary. Incorrect mounting could induce problems for the unit operation. 5.5.1 HEAT PUMP SENSORS Outdoor air temp. (TO/S4) sensor, Suction (compressor) temp.
  • Page 133 5.5.2 SYSTEM CONTROL SENSORS Installation water inlet temp. (S11) sensor, Installation water outlet temp. (S12) sensor, Outdoor air temp. (S13) sensor: Type NTC 10 kΩ at 25 °C...
  • Page 134 5-6 ELECTRIC HEATER REPLACEMENT FOR UNITS 095 & 125 WARNING: Before carrying out any work on the machine, make sure that its power supply is switched off and the access to it is prevented. Any work must be carried out by personnel qualified and authorized to work on this type of machine. 1- Close installation valves and drain the unit 2- Disconnect water pipes 3- Remove front and top panels...
  • Page 135 4- Unscrew the fixing screws on the rear panel (hydraulic connectors, heat exchanger, expansion vessel, electric heater, panel...) 5- Remove the rear panel 6- Disconnect power supply wiring of the electrical heater from contactors KM1/2/3...
  • Page 136 7- Unscrew the hydraulic connectors (upper & lower) of the electrical heater 8- Remove carefully the electrical heater Pay attention to the safety thermostats and their wiring 9- Remove carefully the safety thermostats CAUTION These thermostats are very important for safety. Pay attention that they must be mounted on the new heater carefully respecting position &...
  • Page 137 PART 6 – MAINTENANCE CONTROLLER & PARAMETERS WARNING: Before carrying out any work on the machine, make sure that its power supply is switched off and the access to it is prevented. Any work must be carried out by personnel qualified and authorized to work on this type of machine.
  • Page 138 6-1 PRESENTATION The remote controller can be used for: display of the current heat pump status (Set point, heating/cooling mode, On/off), display of possible frigorific circuit alarm, display of alarms history, display of frigorific circuit sensors values and current information about compressor speed, compressor current & valve position, display and modification of parameters, heat pump control in stand alone configuration (without system control).
  • Page 139 6.2 STANDARD DISPLAY & SETTINGS – CONNECTION TO A2 BOARD 6.2.1 REMOTE CONTROL CONNECTION Maintenance remote control has to be connected to specific terminals “R1” & “R2” of the unit terminal block. These terminals are connected to the (blue) connector “RC” of A2 board. RC connector (on A2 board) 3 / 2 / 1 Unit terminal block...
  • Page 140 Alarm on frigorific circuit - example (see details in §5.1) Alarm message « E04 » - blinking 6.2.3 ALARM HISTORY DISPLAY Possibility to display the 4 last events concerning frigorific circuit managed by A3 board. Press and hold buttons simultaneously for 4 seconds or longer to display alarm history mode. Use temperature setting buttons to display the alarm item code.
  • Page 141 For units 095/125/155/157/175/177/195/197: Item code Sensor type Remark From A2 control board Water temperature for control Like code 02 Remote control ambient temperature Not used for heat pump control Water temperature for control (TW) Like code 00 Liquid line (in cooling) temperature (E1) Heat exchanger temperature (E2) Temp.
  • Page 142 6.2.5 PARAMETERS 1-Press and hold buttons simultaneously for 4 seconds or longer. , “unit N° 1-1”, set data (parameter value) and item code are displayed blinking. 3-Check that unit N° is 1. 4-Use temperature setting buttons to select the item code of the chosen parameter. 5-Use timer time buttons to select value for parameter.
  • Page 143 6.2.6 HEAT PUMP CONTROL – STAND ALONE The maintenance remote controller can be used for heat pump control in case of stand alone operation (without system control). Report to § 4.16. To operate the heat pump, force the circulating pump (see § 4.12) before initiate an order via the specific maintenance remote control (or the external contacts).
  • Page 144 ADVANCED DISPLAY & SETTINGS – CONNECTION TO A3 BOARD 6.3.1 REMOTE CONTROL CONNECTION Maintenance remote control must be connected to A3 control board by means of an interface ACC-CR-RCS. Connection on A3 board is made on specific connector RC-P (5 poles, colour red). 6.3.2 CURRENT DISPLAY Display when remote control is connected Note:...
  • Page 145 Compressor operating time : Displayed (in « 1 hour » unit) using 8 digits. -When the first 4 digits are displayed, top point of these digits is lit. -When the last 4 digits are displayed, top point is not lit. -The display of the first 4 and the last 4 digits changes automatically every 10 seconds.
  • Page 146 6.3.4 VALUES DISPLAY FOR MONITORING Press and hold buttons simultaneously for 4 seconds or longer to display values. Use temperature setting buttons to display the alarm item code (see table below). To return to normal display, press button Values display - example Measured value : 480 steps Value item code “15”...
  • Page 147 6.3.5 PARAMETERS 1-Press and hold buttons simultaneously for 4 seconds or longer. 2- Unit N° “1-1”, set data (parameter value) and item code are displayed after few seconds. and set data are blinking. 3-Check that unit N° is 1. 4-Use temperature setting buttons to select the item code of the chosen parameter.

This manual is also suitable for:

Phie seriesPhrie 095Phrie 175Phrie 157Phrie 125Phrie 197 ... Show all