Panasonic WH-SDC0316M9E8 Service Manual
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Panasonic WH-SDC0316M9E8 Service Manual

Panasonic WH-SDC0316M9E8 Service Manual

Air-to-water hydromodule
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This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be
replaced with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission
of manufacturer.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL
Refer to National, State, Territory and local legislation, regulations, codes, installation & operation manuals,
WH-SDC0316M9E8
IMPORTANT SAFETY NOTICE
PRECAUTION OF LOW TEMPERATURE
REFRIGERANT
This AIR-TO-WATER HEATPUMP contains and operates with refrigerant R290.
before the installation, maintenance and/or service of this product.
Air-to-Water Hydromodule
Indoor Unit
WARNING
CAUTION
R290
Order No: PCZ2411004CE
Outdoor Unit
WH-WXG09ME8
WH-WXG12ME8
WH-WXG16ME8
Destination
Europe
in the Schematic
© Panasonic Corporation 2024.

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Summary of Contents for Panasonic WH-SDC0316M9E8

  • Page 1 This AIR-TO-WATER HEATPUMP contains and operates with refrigerant R290. THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL Refer to National, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation, maintenance and/or service of this product. © Panasonic Corporation 2024.

  • Page 2: Table Of Contents

        Specifications ........... 12     14.11 Powerful Operation ........177     14.12 Quiet Operation ......... 177 WH-SDC0316M9E8 WH-WXG09ME8 ..12         14.13 Sterilization Mode ........178 WH-SDC0316M9E8 WH-WXG12ME8 ..15        ...
  • Page 3 18.5 Self-Diagnosis Method ......217     Disassembly and Assembly Instructions ..273     19.1 Indoor Unit ..........273     19.2 Outdoor Unit ..........276     Technical Data ..........279     20.1 Operation Characteristics ......279  ...

  • Page 4: Safety Precautions

    1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before installation of Air-To-Water Hydromodule + Tank (here after referred to as “Tank Unit”).  Electrical works and water installation works must be done by licensed electrician and licensed water system installer respectively.
  • Page 5 WARNING 17. Engage authorized dealer or specialist for installation. If installation done by the user is incorrect, it will cause water leakage, electrical shock or fire. 18. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire.
  • Page 6 CAUTION 1. Do not install the Tank Unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire. 2. Do not install the outdoor unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire.

  • Page 7: Precaution For Using R290 Refrigerant

    2. Precaution for Using R290 Refrigerant  Pay careful attention to the following points: WARNING The mixing of different refrigerants within a system is prohibited. Operation, maintenance, repairing and refrigerant recovery should be carried out by trained and certified personnel in the use of flammable refrigerants and as recommended by the manufacturer.
  • Page 8 CAUTION Installation (Space)  Must comply with national gas regulations, state municipal rules and legislation. Notify relevant authorities in accordance with all applicable regulations.  Must ensure mechanical connections be accessible for maintenance purposes.  In cases that require mechanical ventilation, ventilation openings shall be kept clear of obstruction. ...
  • Page 9 CAUTION 2-7. Checks to the refrigerating equipment  Where electrical components are being changed, they shall be fit for the purpose and to the correct specification.  At all times the manufacturer’s maintenance and service guidelines shall be followed.  If in doubt consult the manufacturer’s technical department for assistance.
  • Page 10 CAUTION The following leak detection methods are deemed acceptable for all refrigerant systems.  No leaks shall be detected when using detection equipment with a sensitivity of 5 grams per year of refrigerant or better under a pressure of at least 0,25 times the maximum allowable pressure (>0.98MPa, max 3.90MPa). For example, a universal sniffer.
  • Page 11 CAUTION Decommissioning  Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its details.  It is recommended good practice that all refrigerants are recovered safely.  Re-use of recovered refrigerant is prohibited. ...

  • Page 12: Specifications

    3. Specifications WH-SDC0316M9E8 WH-WXG09ME8 Item Unit Outdoor Unit Performance Test Condition EN 14511 / EN 14825 Condition A35W7 (Ambient/Water) Cooling Capacity 9.00 BTU/h 30700 Cooling EER 3.61 Condition A7W35 A2W35 (Ambient/Water) Heating Capacity 9.00 9.00 BTU/h 30700 30700 Heating COP 5.23...
  • Page 13 Item Unit Outdoor Unit Type Propeller Fan Material Motor Type DC (8-poles) Input Power Output Power 120 × 2 Cooling: 510 Fan Speed Heating: 400 Fin material Aluminium (Pre Coat) Fin Type Corrugated Fin Heat Exchanger Row × Stage × FPI 2 ×...
  • Page 14 Item Unit Indoor Unit Performance Test Condition EN 14511 / EN 14825 dB (A) Cooling: 22*** Heating: 22*** Noise Level Power Level dB Cooling: 35**** Heating: 35**** Height mm (inch) Dimension Width mm (inch) Depth mm (inch) Net Weight kg (lbs) 29 (64) Water Pipe Diameter Room...

  • Page 15: Wh-Sdc0316M9E8 Wh-Wxg12Me8

    WH-SDC0316M9E8 WH-WXG12ME8 Item Unit Outdoor Unit Performance Test Condition EN 14511 / EN 14825 Condition A35W7 (Ambient/Water) Cooling Capacity 9.00 BTU/h 30700 Cooling EER 3.61 Condition A7W35 A2W35 (Ambient/Water) Heating Capacity 12.00 12.00 BTU/h 40900 40900 Heating COP 5.06 3.54...
  • Page 16 Item Unit Outdoor Unit Type Propeller Fan Material Motor Type DC (8-poles) Input Power Output Power 120 × 2 Cooling: 510 Fan Speed Heating: 420 Fin material Aluminium (Pre Coat) Fin Type Corrugated Fin Heat Exchanger Row × Stage × FPI 2 ×...
  • Page 17 Item Unit Indoor Unit Performance Test Condition EN 14511 / EN 14825 dB (A) Cooling: 22*** Heating: 22*** Noise Level Power Level dB Cooling: 35**** Heating: 35**** Height mm (inch) Dimension Width mm (inch) Depth mm (inch) Net Weight kg (lbs) 29 (64) Water Pipe Diameter Room...

  • Page 18: Wh-Sdc0316M9E8 Wh-Wxg16Me8

    WH-SDC0316M9E8 WH-WXG16ME8 Item Unit Outdoor Unit Performance Test Condition EN 14511 / EN 14825 Condition A35W7 (Ambient/Water) Cooling Capacity 9.00 BTU/h 30700 Cooling EER 3.61 Condition A7W35 A2W35 (Ambient/Water) Heating Capacity 16.00 16.00 BTU/h 54600 54600 Heating COP 4.89 3.30...
  • Page 19 Item Unit Outdoor Unit Type Propeller Fan Material Motor Type DC (8-poles) Input Power Output Power 120 × 2 Cooling: 510 Fan Speed Heating: 480 Fin material Aluminium (Blue Coat) Fin Type Corrugated Fin Heat Exchanger Row × Stage × FPI 2 ×...
  • Page 20 Item Unit Indoor Unit Performance Test Condition EN 14511 / EN 14825 dB (A) Cooling: 22*** Heating: 22*** Noise Level Power Level dB Cooling: 35**** Heating: 35**** Height mm (inch) Dimension Width mm (inch) Depth mm (inch) Net Weight kg (lbs) 29 (64) Water Pipe Diameter Room...

  • Page 21: Features

    4. Features  Inverter Technology Energy saving  High Efficiency  Long Installation Piping Long piping up to 30 meter  A-class energy efficiency pump Water pump speed can be set by selection at control panel  Improved deice cycle ...

  • Page 22: Location Of Controls And Components

    5. Location of Controls and Components Indoor Unit 5.1.1 Remote Controller Buttons and Display 10:34am,Mon 1.50 40 ˚ c 2344 18 ˚ c ˚ c ˚ c...
  • Page 24 5.1.2 Initialization...

  • Page 25: Quick Menu

    5.1.3 Quick Menu 10:34am,Mon 1.50 40 ˚ c 2344 18 ˚ c ˚ c ˚ c...
  • Page 26 5.1.4 How to Use the Quick Menu...
  • Page 31 5.1.5 Menus (For User)
  • Page 36 5.1.6 Menus (For Installer)

  • Page 56: Main Components

    5.1.7 Main Components Cabinet front plate Control board cover Left decoration panel Cabinet side plate Right decoration panel Control board Remote controller Backup heater Network adaptor holder Main PCB Overload protector 3-phase RCCB/ELCB Expansion vessel...

  • Page 57: Outdoor Unit

    Outdoor Unit Air inlet (rear) Air inlet (side) Air outlet...

  • Page 58: Dimensions

    6. Dimensions Indoor Unit FRONT VIEW SIDE VIEW 357.2 250.2 143.2 62.4 BOTTOM VIEW Letter Pipe Description Connection Size Water inlet (From Outdoor Unit) R 1¼ Water outlet R 1¼ Drain water hole – Unit: mm...

  • Page 59: Outdoor Unit

    Outdoor Unit <Top View> <Front View> <Side View> <Rear View> 1200 169.4 <Bottom View> (185.5) 185.5 Drain Hole Unit: mm...

  • Page 60: Refrigeration And Water Cycle Diagram

    7. Refrigeration and Water Cycle Diagram OUTDOOR UNIT INDOOR UNIT STRAINER HIGH PRESSURE SENSOR WATER OUTLET SERVICE TEMP. SENSOR VALVE PANEL HEATER / PRESSURE FLOOR HEATING RELIEF SEPARATOR 2-WAY PRESSURE WATER OUTLET VALVE VALVE SWITCH WATER HEATER PRESSURE SENSOR CONDENSER FLOW SENSOR TH10 COMPRESSOR...

  • Page 61: Block Diagram

    8. Block Diagram...

  • Page 62: Wiring Connection Diagram

    9. Wiring Connection Diagram Indoor Unit...

  • Page 63: Outdoor Unit

    Outdoor Unit REACTOR REMARKS (RED) (YELLOW) REACTOR WHT : WHITE BLK : BLACK GRY : GRAY (WHITE) (WHITE) REACTOR ORN : ORANGE YLW : YELLOW Y/G : YELLOW/GREEN RED : RED BRN : BROWN RCCB : RESIDUAL CURRENT CIRCUIT BREAKER BLU : BLUE GRN : GREEN (WHITE)

  • Page 64: Electronic Circuit Diagram

    10. Electronic Circuit Diagram 10.1 Indoor Unit...

  • Page 65: Outdoor Unit

    10.2 Outdoor Unit Sensor (Thermistor) Compressor Temp. Sensor Characteristics (Thermistor) Characteristics Outdoor Air Sensor Outdoor Heat Exchanger Sensor REACTOR REACTOR (WHITE) (WHITE) REACTOR (WHITE) (WHITE) REACTOR (WHITE) (WHITE) (WHITE) Temperature (ºC) Temperature (ºC) FG200 Q300 (GREEN) COMPRESSOR (RED) CIRCUIT (BLUE) RY-PWR1 (YELLOW) FUSE2...

  • Page 66: Printed Circuit Board

    11. Printed Circuit Board 11.1 Indoor Unit 11.1.1 Main Printed Circuit Board CN-PWR CN-AC AC-L3 HT-L1 RY-HTL3 RY-HTL1 HT-L3 AC-L1 HT-L2 AC-N2 AC-L2 AC-L3_2 AC-N RY-HTL2 RY-BOOSTER CN-PWR2 CN-PWR3 CN-DATA CN-ERROR CN-OLP1 CN-TH2 CN-TH1 RY-V3 CN-TH3 CN-PWR4 RY-V2 RY-ANODE CN-CNT SSR1 RY-CONTACT1 CN-CNT2...
  • Page 67 11.1.2 Sub Printed Circuit Board (Optional) CN208 RY-201 CN209 CN201 CN205 CN-PWR204 CN-CNT CN204 CN203 CN207 CN-COMM CN-PWR202 CN206 CN210...

  • Page 68: Outdoor Unit

    11.2 Outdoor Unit 11.2.1 Main Printed Circuit Board FG200 L2-IN RAT1 L1-IN CN-TH3 L3-IN CN-HPS CN-TH2 CN-DPS RY-PWR1 RY-AC CN-TH1 RY-PWR2 CN-PUMP_CTR RY-HT1 N-IN CN-PSW RY-HT2 CN-INJV2 RAT2 CN-INJ CN-FM_LO CN-HT CN-V2 CN-FM_UP CN-EV CN-HOT CN-COM...
  • Page 69 11.2.2 Noise Filter Printed Circuit Board CN-COM_PWR CN-PWR FG601 FG603 FG602...
  • Page 70 11.2.3 Sub Printed Circuit Board CN-CONTACT CN-COM CN-DATA FG103 CN-V3 CN-PWR RY-CONTACT FG101 RY-V3 CN-PUMP_CTR CN-CNT CN-RC CN-TH CN-PUMP CN-FLWSEN...

  • Page 71: Installation Instruction

    12. Installation Instruction Attached Accessories Accessory Parts Qty. Accessory Parts Qty. □ □ Installation plate Installation plate □ □ Drain elbow Screw Network adaptor □ □ Packing for drain (CZ-TAW*) Optional Accessories Accessory Parts Qty. □ Remote controller case (PAW-A2W-COV-KL) □...

  • Page 72: Indoor Unit

    12.1 Indoor Unit 12.1.1 Select the Best Location 12.1.1.2 Installation Position Obtain customer’s approval before deciding on the The mounting wall is strong and solid enough to installation location. prevent vibration.  Ensure that there are no heat sources or vapours near the indoor unit.

  • Page 73: Indoor Unit Installation

    5. Finish by sealing the sleeve with putty or caulking 12.1.3.2 Typical Piping Installation compound at the final stage. Temporary Double check if Wall connection to be the valve Indoor Outdoor removed assembly immediately is acceptable Air-to-Water Heat Pump 15 mm after filling water in-house.

  • Page 74: Drain Elbow And Hose Installation

    Torque wrench Spanner 12.1.3.4 Drain Elbow and Hose Installation  Fix the drain elbow 2 and packing 3 to the bottom of the indoor unit, as shown in the illustration below.  Use a 17 mm inner diameter drain hose available on the market.

  • Page 75: Connect The Cable To The Indoor Unit

    12.1.4 Connect the Cable to the Indoor CAUTION Unit Care must be taken when opening the control board cover ⑥ and control board ⑦ for unit installation and servicing, as it WARNING may cause injury. This section is for authorised and licensed electricians only. Work behind the control board cover ⑥...

  • Page 76: Connection Requirements

    2. Connect the ID-OD communication cable. 1. The two-way valve must be of the spring and The specifications for the ID-OD communication electronic type. cable must be as follows: Refer to the “Field Supply Accessories” table for  details. The valve cable must be (3 × min Cable size: 2 ×...
  • Page 77 11. The maximum output power of the booster heater 4. The room thermostat 2 cable must be (4 or 3 × must be ≤ 3 kW. The booster heater cable must min 0.5 mm ), and of type designation 60245 IEC be (3 ×...
  • Page 78 12.1.5.2 Guide Optional and Power 12.1.5.3 Cable Length for Connections Supply Cables to Bushings When connecting cables between the indoor unit and external devices, the cable length must not exceed the maximum lengths specified in the table. CAUTION Wires must be routed away from hot surfaces to prevent cable External device Maximum cable length (m) insulation damage and the risk of electric shock.

  • Page 79: Main Pcb Connections

    12.1.5.4 Main PCB Connections OLP FOR BOOSTER HEATER ROOM TEMP. ZONE 1 EXTERNAL CONTROL REMOTE CONTROLLER OUTDOOR AIR SENSOR BUFFER TANK SENSOR TANK SENSOR BOILER CONTACT/ DEFROST SIGNAL EXTRA PUMP BOOSTER L N C H C O N C O N HEATER ROOM 3-WAY...
  • Page 80 12.1.5.5 Optional PCB (CZ-NS6P) Connections ROOM MIXING MIXING THERMO. 2 VALVE 1 VALVE 2 N Cool Heat CN201 CN203 POOL CN209 WATER PUMP SOLAR EXTERNAL WATER CN210 COMP. PUMP SWITCH ERROR HEAT/COOL SIGNAL SWITCH WATER CN208 CN206 PUMP Bit1 ZONE 1 Bit2 SIGNAL WATER...
  • Page 81 Insert the sensor into the sensor pocket and Specifications secure it to the surface of the solar panel. This section describes the external devices (optional) recommended by Panasonic. Always use the correct Unit in mm external devices when installing the system. Blue Ø6...
  • Page 82  2. Connect the cable coming from the left side of the Optional pump network adaptor holder to the connector inside the Power supply: AC230V/50 Hz, <500 W adaptor. Recommended part: Yonos PICO 1.0 25/1-8: Made by Wilo Slot Connector 3.
  • Page 83 1. Replace the lead wire connector of CZ-TAW1* from CN-CNT2 with CN-CNT. 2. Insert the M-Bus or Modbus, etc. lead wire connector into CN-CNT2. When connecting Panasonic A2W Optional PCB to devices such as M-Bus or Modbus, etc.  It will be necessary to adjust the connection position of the CZ-TAW1* on the Main PCB.

  • Page 84: Check Water Pressure

    12.1.7 Reconfirmation ② When the outdoor unit is located above and the heating terminal is 30 m below it: 12.1.7.1 Check Water Pressure * (0.50 bar = 0.05 MPa) Water pressure should not be lower than 0.5 bar (check the water pressure using the remote controller). If necessary, fill the space heating/cooling pipes with water through the tube connector on the outdoor...

  • Page 85: Installation Location

    12.1.7.2 Check the Pressure Relief 12.1.7.5 Check the RCCB/ELCB Valve Ensure that the RCCB/ELCB is in the “ON” position before performing any checks. *The pressure relief valve is located on the outdoor Turn ON the indoor unit. unit. This test can only be conducted when power is 1.
  • Page 86 12.1.8.2 Wiring the Remote Controller 3. Remove the body from the base. Main PCB 4 Remote controller Base Body Remote controller Terminal for Remote controller Remote controller wiring wiring (field supply) No polarity Insert screwdriver, turn a little.  The remote controller cable must be (2 × min Flat-blade screwdriver 0.3 mm ), double insulation layer (with an...
  • Page 87 12.1.8.4 Mounting the Remote 12.1.8.5 Replace the Remote Controller Controller Cover  For exposure type To plug the hole after removing the remote Preparation: Make 2 holes for the screws using a controller, fit a remote controller case 7 in place screwdriver.

  • Page 88: Maintenance

    12.1.9 Test Run 12.1.9.2 Reset Overload Protector ⑨ 1. Before the test run, ensure that the following items Overload protector ⑨ is a safety device designed to are checked: prevent water overheating. If the overload protector a) Pipework is properly installed. ⑨...

  • Page 89: Appendix

    12.2 Appendix 12.2.1 Variation of System This section introduces various systems that use Air-to-Water Heat Pumps and describes the actual setting methods. For this model, the Zone 1 external room thermistor and Zone 1 external room thermostat must be always connected to the Main PCB ④.

  • Page 90: External Room Thermostat

    On the way back from floor heating / radiators, outdoor unit connect them directly. The remote controller is located on the indoor unit. An external room thermistor (specified by Panasonic) is installed in the room where the floor heating is installed. This is an application that uses an external room thermistor.

  • Page 91: Examples Of Installations

    Connect Floor heating to the 2 circuits via buffer tank as shown in the figure. Install mixing valves, pumps and thermistors (specified by Panasonic) on both circuits. Remove the remote controller from the indoor unit and attach it to either circuit to use as a Room Thermostat.
  • Page 92 On the way back from the swimming pool, outdoor unit connect them directly without using a buffer tank. Install a pool pump and pool thermistor (specified by Panasonic) at the secondary side of the pool heat exchanger. The pool temperature can be set with a remote controller.
  • Page 93 This is an application that connects the Buffer tank unit to the indoor unit. The temperature of the buffer tank is detected by a buffer tank thermistor (specified by Panasonic). If Optional PCB is not connected, external pump can be used for circulation in the floor heating circuit.
  • Page 94 This is an application that connect the buffer tank unit to the indoor unit and then to the solar water heater to heat the Buffer tank. The temperature of the buffer tank is detected by a buffer tank thermistor (specified by Panasonic). The temperature of the solar panel is detected by a solar thermistor (specified by Panasonic).

  • Page 95: System Installation

    12.2.2 System Installation 12.2.2.1 Remote Controller Outline The LCD display as shown in this manual are for instructional purpose only, and may differ from the actual unit. Name Function A: Main screen Display information B: Menu Open/Close the main menu C: Triangle (Move) Select and change item D: Operate...
  • Page 96 First time of power ON (Start of installation) 12:00 pm, Mon Initialization When the power is ON, firstly the initialization screen appears (approx. 10 sec) Initializing approx, 10 sec later. 12:00 pm, Mon When the initialization screen ends, it turns to normal screen.

  • Page 97: Installer Setup

    12:00 pm, Mon Main menu System check Personal setup Service contact Installer setup Select Confirm Confirm to go into Installer setup 12.2.2.2 Installer Setup System setup Optional PCB connectivity Yes / No Only when the selection for Optional PCB is Yes Zone &...
  • Page 98 Pump flowrate ΔT / Max. Duty Only when the selection for Tank connection is Yes DHW defrost Yes / No Heating control Comfort / Efficiency time setup Heat-Cool meter/ Tank meter / Elec. meter HP / Elec. meter 1 (PV meter)/ External meter Elec.
  • Page 99 Service setup Pump maximum speed Pump maximum speed setup OFF / ON / Air Purge Dry concrete ON (Dry concrete) Edit (Dry concrete schedule) Day and temp. setup Service contact Contact 1 Name and phone No. setup Contact 2 Name and phone No. setup Remote control setup RC selection Single / Dual...

  • Page 100: System Setup

    12.2.2.3 System Setup System setup 12:00 pm, Mon 1. Optional PCB connectivity Initial setting: No Optional PCB connectivity If any functions below is necessary, purchase and install (CZ-NS6P). Zone & Sensor Select Yes after installing it. Heater capacity • 2-zone control •...
  • Page 101 6. DHW capacity Initial setting: Variable 12:00 pm, Mon System setup Heater capacity Variable DHW capacity setting normally run with efficient boiling which is energy Anti freezing saving heating. However while hot water usage high and tank water temperature low, variable DHW mode will run with fast heat up which heat up the tank with high Tank connection heating capacity.
  • Page 102 12:00 pm, Mon 10. Alternative outdoor sensor System setup Initial setting: No Buffer tank connection Set to Yes if outdoor sensor is installed. Tank heater Controlled by optional outdoor sensor without reading the outdoor sensor of heat Base pan heater pump unit.
  • Page 103 2) SG ready (Only available to set when optional PCB set to YES) - SG Ready input from optional PCB terminal control ON/OFF of boiler and heat pump as below condition SG signal Operation pattern Vcc-bit1 Vcc-bit2 Open Open Heat pump OFF, Boiler OFF Short Open Heat pump ON, Boiler OFF...
  • Page 104 12:00 pm, Mon System setup 15. Demand control Initial setting: No External SW Set when there is demand control. Solar connection Adjust terminal voltage within 1 ~ 10 V to change the operating current limit. External error signal Note: Does not display if there is no Optional PCB. Demand control Select Confirm...
  • Page 105 System setup 12:00 pm, Mon 16. SG Ready Initial setting: No Solar connection Switch operation of heat pump by open-short of 2 terminals. External error signal The following settings are possible. Capacity: limit by capacity. Demand control Power consumption: limit by power consumption. SG Ready Select Confirm...
  • Page 106 12:00 pm, Mon System setup 18. Circulation Liquid Initial setting: Water Demand control Set circulation of heating water. SG Ready External compressor SW There are 2 types of settings, water and glycol. Circulation liquid Note: Set glycol when using anti-freeze liquid. Select Confirm It may cause error if setting is wrong.
  • Page 107 12:00 pm, Mon System setup 23. Pump flowrate Initial setting: ∆T Force heater If pump flowrate setting is ΔT, unit adjust pump duty to get different of water inlet Force defrost and outlet base on setting on * ΔT for heating ON and * ΔT for cooling ON in Defrost signal operation setup menu during room side operation.
  • Page 108 12:00 pm, Mon System setup 27. Electrical anode Initial setting: No DHW Defrost Power can be supplied from the indoor unit when an electrical anode is attached Heating control to an external tank. External meter Electrical anode Select Confirm 12:00 pm, Mon System setup 28.

  • Page 109: Operation Setup

    12.2.2.4 Operation Setup Heat compensation curve 31. Water temp. for heating ON Initial setting: compensation curve 55°C Decide temperature Hot water Set target water temperature to operate heating operation. of 4 points as shown temperature Compensation curve: Target water temperature change in conjunction with in diagram outdoor ambient temperature change.
  • Page 110 Cool 35. Water temp. for cooling ON Initial setting: compensation curve compensation curve 15°C Set target water temperature to operate cooling operation. Cold water Compensation curve: Target water temperature change in conjunction with temperature outdoor ambient temperature change. Direct: Set direct water circulation target temperature. 10°C Outdoor In 2 zone system, zone 1 and zone 2 water temperature can be set separately.
  • Page 111 Tank 39. Floor operation time (max) Initial setting: 8h Heat Set max operating hours of heating. When max operation time is shortened, it can boil the tank more frequently. 30min ~ 10h Setting range is 30 minutes ~ 10 hours. It is a function for Heating + Tank operation.

  • Page 112: Service Setup

    12.2.2.5 Service Setup 12:00 pm, Mon Service setup 43. Pump maximum speed Initial setting: Varies according to model Flow rate Max Duty Operation Normally setting is not necessary. Adjust when needed to reduce the pump sound, etc. Air purge 45.6 L/min. 0xCE Besides that, the unit has Air Purge function.

  • Page 113: Service And Maintenance

    12.3 Service and Maintenance 12.3.2 Custom Menu If you forget your password and cannot operate the remote controller   How to set up a Custom menu Press for 5 seconds. If the password unlock screen appears, press “Confirm” to reset the password. 12:00 pm, Mon Custom menu It will be set to 0000.

  • Page 114: Outdoor Unit

    12.4 Outdoor Unit Attached accessories Optional Accessories Accessories part Qty. Accessories part Qty. Remote Controller set Drain Elbow (CZ-RTW2TAW1C) □ □ *Include Remote Controller + Network adaptor with 10m cable Screw Remote Controller (CZ-RTW2) □ Base Pan Heater CZ-NE4P Rubber Cap □...
  • Page 115 12.4.2 Protective Zone This outdoor unit is filled with R290(Extremely flammable gas, safety A3 group per ISO 817). Note that this refrigerant has a higher density than air. In case of a refrigerant leak, the leaked refrigerant may accumulate near the ground.

  • Page 116: Install Outdoor Unit

    12.4.3 Install Outdoor Unit 12.4.3.1 Dimension Diagram Top view 1200 Front view Side view Rear view (185.5) 185.5 169.4 300mm It is advisable to avoid more or more than 2 blockage directions. For better ventilation and 100mm multiple outdoor installations, or more Drain Hole consult an authorised dealer/...
  • Page 117 12.4.3.2 Main Components Diagram Network Adaptor (option) 1 Front plate 2 Top plate Remote Controller (option) 3 Terminal board cover 4 3-phase RCCB/ ELCB 5 Optional terminal board 6 Indoor/outdoor connecting terminal 7 Water pump 8 Magnetic water filter 9 Flow sensor 10 Gas-liquid separator 11 Water pressure sensor (back side board) 12 Pressure relief valve...

  • Page 118: Piping Installation

    12.4.3.4 Disposal of Outdoor Unit Drain Water  When the Drain elbow 1 is used, please ensure to: The unit must be mounted on a stand at least 50 mm high. Seal the ø32 mm holes with Rubber caps 3 . (Refer to the diagram below and install from the outside) If drain water leaks, attach rubber caps 4 when necessary.
  • Page 119 When indoor unit (hydromodule + tank) is connected Temporary connection to be removed immediately after filling Air-to-Water water Heatpump Outdoor Unit Double Check Valve assembly is acceptable in house Fan Coil Unit Radiator/ Floor Heater 2-Way Valve Expansion Tab/ Vessel Shower Drain Water...
  • Page 120  When outdoor unit is used alone Make sure to insulate the water circuit pipes to Install an expansion tank (set pressure: 1 bar) to the prevent reduction of heating capacity. circulation circuit.  After installation, check the water leakage For capacity, refer to 12.4.11 Reconfirmation.
  • Page 121 12.4.5.4 Special Installation Patterns Special construction patterns mentioned here refer to the case where there is a substantial difference in elevation (e.g. more than 10 m) between the outdoor unit installation and the Panel/Floor heater (or indoor unit). In this case, attention must be paid since incorrect water filling during installation may prevent the system from operating correctly and may cause water leak.

  • Page 122: Connect The Cable To The Outdoor Unit

    12.4.6 Connect the Cable to the Outdoor Unit WARNING CAUTION This section is intended for licensed electricians. Make sure to install the discharge grille to the outdoor unit before Work inside terminal board covers ③ fixed with work screws powering ON to protect againts a rotating fan. must be carried out by an installer or service personnel under the supervision of qualified personnel.
  • Page 123 3. Route the cables as follows.  Do not damage the cables by sharp edges. Remove the front plate ① and pull the power cable (cabtyre cable *1) and connection cable through into the rear bushing. Be sure to use the bushing and do not lose it. Remove the terminal board cover ③ and cable gland cap and insert the cables into the cable gland on the bottom of the electrical control unit box.
  • Page 124 Overall view next page Top view Power Supply 3-WAY VALVE BOILER CONTACT 3-WAY VALVE BOILER REMOTE TANK CONTACT CONTROLLER SENSOR *Do not allow the power supply cable to Connection between come into contact with other cables. Indoor unit and from Outdoor unit Connecting cable hole...
  • Page 125 (Refer to the overall diagram on previous page) 12.4.6.2 Connection Between Indoor Unit and Outdoor Unit When outdoor unit is used alone, leave the short-circuit wires “C2” and “C3” attached as shown in the diagram below. TANK SENSOR For DHW Remote Tank sensor controller...
  • Page 126 12.4.7 Install Remote Controller  Remote controller is an optional item. Be sure to purchase it if the outdoor unit is used alone. If you have purchased an indoor unit, it is included. When relocating the remote controller, install in accordance with its Installation Manual. 12.4.7.1 Installation Location ...

  • Page 127: Piping Insulation

    12.4.10 Charging the Water 12.4.8 Network Adaptor Installation  Make sure all the piping installations are properly 1. Insert a flat head screwdriver into the slot on the done before carrying out the steps below. top of the adaptor and remove the cover. Connect the CN-CNT cable to the connector inside the 1.

  • Page 128: Check Rccb/Elcb

    12.4.11 Reconfirmation See formula below for capacity: ε x Vo WARNING 98 + P Be sure to switch off all power supply before performing each of 98 + P the below checks. V : Required gas amount <expansion vessel volume: L> 12.4.11.1 Check Water Pressure Vo : System total water volume <L>...
  • Page 129 12.4.12 Install Discharge Grille 12.4.13 Test Run 1. Before test run, make sure below items have been Install the front plate ① checked: - Remove the 4 screws securing the cabinet front a) Pipework are properly done. plate ①. b) Electric cable connecting work are properly Insert the 4 claws of the discharge grille (right done.
  • Page 130 12.4.14 Maintenance  In order to ensure safety and optimal performance of the Outdoor Unit, seasonal inspections, functional check of RCCB/ELCB, field wiring and piping have to be carried out at regular intervals. This maintenance and scheduled inspection should be carried out by authorized dealer. 12.4.14.1 Maintenance for Magnetic Water Filter ⑧...

  • Page 131: Appendix

    12.5 Appendix 12.5.1 Variation of System This section introduces variation of various systems using Air-To-Water Heatpump and actual setting method. (NOTE) : This model does not have a built-in expansion vessel to prevent the pressure in the water circuit from rising in the event of temperature rise.

  • Page 132: Boiler Connection

    Note: Buffer tank thermistor must be connected to Control Module unit PCB. WARNING Panasonic is NOT responsible for incorrect or unsafe situation of the boiler system. CAUTION Make sure the boiler and its integration in the system complies with applicable legislation.
  • Page 133 12.5.2 System Installation 12.5.2.1 Remote Controller Outline The LCD display as shown in this manual are for instructional purpose only, and may differ from the actual unit. A: Main screen ─────── Display information B: Menu ─────────── Open/Close main menu C: Triangle (Move) ───── Select or change item D: Operate ─────────...
  • Page 134 First time of power ON (Start of installation) 12:00 pm, Mon Initialization When the power is ON, firstly the initialization screen appears (10 sec) Initializing 12:00 pm, Mon When the initialization screen ends, it turns to normal screen. Start When any button is pressed, language setting 12:00 pm, Mon Language screen appears.
  • Page 135 12:00 pm, Mon Main menu System check Personal setup Service contact Installer setup Select Confirm Confirm to go into Installer setup 12.5.3 Setup 12.5.3.1 Installer Setup System setup Zone & Sensor Water/Internal thermostat Anti freezing Yes/No Tank connection Yes/No Only when the selection for Tank connection is Yes DHW Capacity Variable/Standard Base pan heater...
  • Page 136 Compensation Operation setup Heat Water temp. for heating ON Compensation curve curve setup Direct Direct temp. setup Outdoor temp. for heating OFF Heating OFF / ON Temp. and Delay Time Setup ∆T for heating ON ∆T for heating setup Cooling model only Compensation Cool Water temp.
  • Page 137 12.5.3.2 System Setup 12:00am,Mon System setup 1. Zone & Sensor Initial setting: Water temp. Zone & Sensor Select sensor of room temperature control from the following 2 items: Anti freezing Water temperature (circulation water temperature) Tank connection Room thermostat (Internal) DHW capacity Select Confirm...
  • Page 138 12:00am,Mon System setup 6. Bivalent connection Initial setting: No Tank connection Set if heat pump is linked with boiler operation. DHW capacity Connect the start signal of the boiler to the boiler contact terminal (main PCB). Base pan heater Set Bivalent connection to “Yes”. Then, begin setting according to remote controller instruction.
  • Page 139 12:00am,Mon System setup 7. Circulation Liquid Initial setting: Water DHW capacity Set circulation of heating water. Base pan heater Bivalent connection There are 2 types of settings: water and glycol. Circulation Liquid (NOTE) Please set glycol when using anti-freeze liquid. Select Confirm It may cause error if setting is wrong.
  • Page 140 12:00am,Mon System setup Initial setting: [ Heat-cool meter : No ] 12. External meter [ Tank meter : No ] *only available Pump flowrate when Heat-cool meter select Yes DHW Defrost [ Elec. meter HP : No ] [ Elec. meter 1 (PV meter) : No ] Heating control [ Elec.
  • Page 141 12.5.3.3 Operation Setup Heat 15. Water temp. for heating ON compensation curve Initial setting: compensation curve 55°C Decide temperature Hot water Set the target water temperature to perform heating operation. of 4 points as shown temperature Compensation curve: Target water temperature change in conjunction with outdoor in diagram temperature change.
  • Page 142 Cool Cooling model only 18. Water temp. for cooling ON Initial setting: compensation curve compensation curve 15°C Set target water temperature to perform cooling operation. Compensation curve: Target water temperature change in conjunction with outdoor ambient temperature change. Direct: Set the circulation water temperature directly. 10°C 20°C 30°C...
  • Page 143 Tank Only when the selection for Tank connection is Yes 22. Floor operation time (max.) Initial setting: 8h Heat Set the max. operating hours of heating. When max. operation time is shortened, it can boil the tank more frequently. 30min ~ 10h It is a function for Heating + Tank operation.
  • Page 144 12.5.3.4 Service Setup 12:00am,Mon Service setup 26. Pump maximum speed Initial setting: Depend on model Flow rate Max. Duty Operation Normally setting is not necessary. Please adjust when needed to reduce the pump sound, etc. Air Purge 34.4 L/min 0xCE Besides that, the unit has Air Purge function.

  • Page 145: Service And Maintenance

    12.6 Service and Maintenance 12.6.2 Custom Menu If forget Password and cannot operate remote controller   Press for 5 seconds. Setting method of Custom menu Password unlock screen appears, press Confirm and it shall reset. Password will become 0000. Please reset it again. (NOTE) This is displayed only when the remote controller is 12:00am,Mon Custom menu...

  • Page 146: Installation And Servicing Air-To-Water Using R290

    13. Installation and Servicing Air-to-Water using R290 This symbol shows that this equipment uses a flammable refrigerant with safety A3 group per ISO 817. If the WARNING refrigerant is leaked, together with an external ignition source, there is a possibility of fire / explosion. 13.1 About R290 Refrigerant Hydrocarbon is a class of organic chemical made up only with the element Carbon (C) and Hydrogen (H).
  • Page 147 3. Flammable characteristic As shown in below table, R290 is highly flammable and explosive when heated. The installation must be equipped with ATEX (Atmospheres Explosible) certified equipment and must always turn on the combustible gas detector during servicing and when entering the service area. Service must also be performed in a well-ventilated area, especially if the refrigerant system is being accessed.

  • Page 148: Refrigerant Piping Installation • Tools Used In Services

    13.3 Refrigerant piping installation • Tools used in services 13.3.1 Required Tools R290 refrigerant air conditioners must use ATEX (Atmosphere Explosible) certified equipment. The common parts as R32 air conditioners for two-way valves and three-way valves (diameters of service ports); thus, they maintain commonality in the maintenance of the compressive strength, the size of pipe flaring, and the size of flare nuts as R32.
  • Page 149 13.3.2 Tools for R290 1. Manifold gauges 3. Vacuum pump and isolator. R32 gauge can be used for R290 pressure. When using a vacuum pump, it is compulsory to use an ATEX certified vacuum pump. Each port of manifold has different shapes in order When connecting service equipment (such as vacuum to prevent inserting wrong refrigerant.
  • Page 150 4. Leak Detector 6. Refrigerant cylinders HC refrigerant Electric gas leakage tester is used for Refrigerant cylinders for R290 are painted in other R290. The usage of existing HFC detectors cannot be colors that might subject to change according to the use as they can produce spark.
  • Page 151 8. Tools used for refrigerant piping installations and services Common tools R290 Pipe cutters, reamers or scrapers Not applicable for Monobloc Not applicable for Monobloc Flare tools (clutch type) Not applicable for Monobloc Not applicable for Monobloc Torque wrench (1/4, 3/8) Not applicable for Monobloc Not applicable for Monobloc Torque wrench (1/2, 5/8)

  • Page 152: New Installation, And Repairing Of Refrigerant Cycle System Procedures

    13.4 New installation, and Repairing of Refrigerant Cycle System Procedures Personnels working on A3 systems may be subject to applicable occupational hazard or regulations required by local or national law. For safe servicing and disposal, technicians must have detailed knowledge and skills in handling of flammable refrigerants, prevention of refrigerant leaks, leak detection, personal protective equipment, cylinder handling and loading.

  • Page 153: Servicing

    13.5 Servicing 13.5.1 Recover R290 refrigerant with refrigerant recovery machine CAUTION!  Always turn ON the combustible leak detector.  Keep all ignition sources, hot surface, and open flames 3 meter away from the product.  Ensure the servicing area is well ventilated. ...
  • Page 154 13.5.2 Purging by using Nitrogen Gas Before Servicing and Disposal Manifold Gauge Set circuit pressure to 0.7MPa (101psi) Gauge 1 Gauge 2 Air release valve Service valve Low side High side valve valve Nitrogen release valve Height distance from Pressure floor ≥...

  • Page 155: Operation And Control

    14. Operation and Control 14.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.
  • Page 156 14.1.3.3 Cooling Capacity Control The cooling capacity can be set to either Efficiency or Comfort priority. (However, this is only available for WH-WXG12ME8 and WH-WXG16ME8.) Remocon setting : Cooling capacity = Efficiency (default) Prioritize efficiency and operate the cooling with reduced capacity Remocon setting : Cooling capacity = Comfort Prioritize comfort and operate the cooling at maximum capacity.
  • Page 157 Compensation Type: (Operation under Heat Mode and Cool Mode)  The set temperature defines the parameters for the ambient (Outdoor temperature) dependent operation of the unit. The water temperature is determined automatically depending on the outdoor temperature. Default setting is the colder outdoor temperature will result in warmer water and vice versa.
  • Page 158  Cool mode:  When buffer tank selection is “YES” If both zone 1 and zone 2 active Target Water Temperature = Lower Zone Target Water Temperature of Zone 1 and Zone 2 If only one zone is active Target Water Temperature = Zone Target Water Temperature of active zone ...
  • Page 159  Maximum/minimum regulation of Target Water Temperature. Heating Cooling 55°C (Below Ambient -25°C) * 20°C 75°C (Above Ambient -15°C) * 25°C 5°C * Between outdoor ambient -15°C and -25°C, max target decreases gradually from 75°C to 55°C.  Target Zone 1 Water Temperature (Heat mode only) during SG ready control If buffer tank selection is “NO”...
  • Page 160  Maximum/minimum regulation of Target Water Temperature. Heating Cooling 55°C (Below Ambient -25°C) * 20°C 75°C (Above Ambient -15°C) * 25°C 5°C * Between outdoor ambient -15°C and -25°C, max target decreases gradually from 75°C to 55°C.  Target Zone 2 Water Temperature (Heat mode only) during SG ready control If buffer tank selection is “NO”...
  • Page 161  Heat pump and water pump OFF when ROOM Thermo OFF (Both Zone thermo OFF by Room Th or Room Thermostat).  Buffer Tank Connection select "YES" & 1 zone system or 2 zone system select  Each zone control by each sensor which select from either one of the 4 room sensor ...
  • Page 162 14.1.8 Auto Cooling Mode Operation Limit Compressor 19°C 16°C Compressor Outdoor Ambient Temperature  Auto Mode Cooling Only operation will start once the outdoor ambient temperature reaches 19°C and compressor will continue to run until the outdoor ambient temperature drops to 16°C. ...
  • Page 163  Heat pump thermo ON temperature Heat pump thermo ON temperature = water inlet during thermo OFF time + [-3°C] When water outlet temperature < heat pump thermo ON temperature, heat pump ON. Water inlet thermo protection condition  Heat pump thermo OFF temperature: Water inlet temperature >...
  • Page 164 14.1.10 Heat + Tank Mode Operation 3 ways valve control: 3 ways valve switch to room side during room heat-up interval and switch to tank side during tank heat- up interval. Both modes will switch alternately. Tank mode is the initial running mode of Heat + Tank mode.
  • Page 165  Maintain at room cooling interval regardless of the tank temperature. Switch to tank heat-up interval only when (Room Interval Timer is complete OR Room heat pump thermo OFF) AND Tank temperature < Tank thermo ON temperature. Case 3: [Previous switch from tank interval to room interval is due to tank interval timer is complete] ...

  • Page 166: Water Pump

    14.2 Water Pump The system will start checking on the water flow level after operation start for 30 seconds. If water pressure level is detected low or high continuously 300 seconds, the water pump and the compressor will be OFF permanently and OFF/ON control panel LED will blink (H21 error occurs).
  • Page 167 1) P-Q graph for different pump HEX duty  Standalone (WH-WXG09ME8, WH-WXG12ME8) P-Q curve (Standalone) 12kW 74 HEX 12kW C5 HEX (Max) 12kW 40 HEX (Min) 12kW 66 HEX Water flowrate L/min  Standalone (WH-WXG16ME8) P-Q curve (Standalone) 16kW C5 HEX (Max) 16kW 70 HEX 16kW 68 HEX cool 16kW 40 HEX (Min)
  • Page 168  Connection Bi-bloc (WH-WXG09ME8, WH-WXG12ME8) P-Q curve (Connection Bi-bloc) 12kW C5 HEX 12kW 70 HEX 12kW 40 HEX 12kW 68 HEX Water flowrate L/min  Connection Bi-bloc (WH-WXG16ME8) P-Q curve (Connection Bi-bloc) 16kW C5 HEX 16kW 70 HEX 16kW 40 HEX 16kW 68 HEX Water flowrate L/min This condition is under connecting ODU and connecting 5m...
  • Page 169 14.2.2 Zone Water Pump Control Purpose:  Water pump install at each zone to circulate the water inside each zone during buffer tank connection selected “YES” or 2 zone systems. Content:  AC type water pump install for this zone water pump control. When optional PCB connected, 230V output will drive this zone pump.

  • Page 170: Extra Pump Function (Optional)

    Zone Pump Control during Anti-Freeze Zone pump control during Zone Anti-Freeze Control:  When Zone Anti-Freeze Flag=1, Zone Pump Turn ON.  When Zone Anti-Freeze Flag=0, Zone Pump Turn OFF. Zone pump control during Indoor Anti-Freeze Control:  Zone pump only ON/OFF if the Extension PCB connected and Buffer Tank select "NO" condition When Indoor Anti-Freeze flag=1, Zone Pump Turn ON When Indoor Anti-Freeze flag=0, Zone Pump Turn OFF * Pool Water Pump will not affected by both Indoor anti-freeze control or zone anti-freeze control.
  • Page 171 Remocon setting : Extra pump = DHW This is the setting when using DHW circulation operation. DHW circulation start conditions All of the following holds 1) Extra pump = “DHW” 2) DHW circulation is effective time. 3) Tank mode is “ON” DHW circulation start conditions Which of the following holds 1) Extra pump = “No”...

  • Page 172: Water Circuit Part Safety

    14.4 Water Circuit Part Safety 14.4.1 Water Circuit Part Safety Control When water pump is ON, the system will start checking flow switch status (ON/OFF). If the flow switch ON for 10 seconds, the system will check on the water inlet temperature for 10 seconds. If the water inlet temperature not exceeds 80°C, the water pump shall be continuously running with normal mode.

  • Page 173: Indoor Back-Up Heater Control (Excluding When Operating In Standalone)

    14.7 Indoor Back-Up Heater Control (Excluding when Operating in Standalone) 14.7.1 Indoor Electric Heater Control Normal Heating Mode Heater On condition: a. Heater switch is ON b. After Heatpump thermo ON for [30] mins c. After water pump operate [9] mins d.

  • Page 174: Tank Heater Control (Excluding When Operating In Standalone)

    Water pump 14.8 Tank Heater Control (Excluding when Operating in Standalone) 14.8.1 Internal Heater Control at Tank Mode  Internal heater turn ON condition: Internal Heater select for Tank heater by remote controller Tank Heater select ON by user. Backup Heater Enable Tank Temperature <...

  • Page 175: Base Pan Heater Control (Optional)

    14.9 Base Pan Heater Control (Optional)  To enable the base pan heater function, control panel initial setting has to be manually adjusted by activating Base Pan Heater menu.  There are 2 optional start condition can be selected, Type A or Type B. ...
  • Page 176 Control contents:  After fulfill start condition, indoor will operate the force heater operation according to below mode condition Heat mode Only: Turn ON backup heater to achieve room heat pump target water temperature. Heat + Tank mode: Turn ON backup heater to heat up room OR Turn ON Heater to Boil up tank water. Cool mode Only: Water pump and backup heater will OFF in force heater mode.

  • Page 177: Powerful Operation

    Tank Heater selection is EXTERNAL: Booster Heater ON condition:  Force Heater mode ON AND  Tank temperature < tank set temperature + [Remocon Set Tank Re-heat Temp] - 1°C, AND  20 minutes since previous heater off. Booster Heater OFF condition: ...

  • Page 178: Sterilization Mode

    Stop condition OFF/ON button is pressed. Quiet mode is OFF by remote control. Quiet mode is request OFF by weekly timer. In case of “Capacity” is set for “Quiet priority” in the function setup of the remote control Start condition 1) Quiet mode is set on remote control.

  • Page 179: Dhw Circulation Pipe Sterilization Operation

    14.14 DHW Circulation Pipe Sterilization Operation Purpose: This control is designed to prevent legionella for DHW circulation pipe. DHW circulation pipe sterilization mode start conditions All of the following holds 1) Remocon setting : Extra pump = DHW 2) Tank sterilization operation is finished. 3) Tank sterilization is completed within 490 minutes since sterilization function start DHW circulation pipe sterilization mode stop conditions Which of the following holds...

  • Page 180: Force Dhw Mode

    when alternative sensor select NO  Original Outdoor temperature sensor will use for Indoor & Outdoor heat pump operation reference sensor.  Data communication direction : OUTDOOR send outdoor temperature reading to INDOOR.  Error judge : OUTDOOR will judge the original outdoor sensor error (F36 display if error detect). No judge error on alternative outdoor sensor when alternative sensor select YES ...
  • Page 181  However, if flow sensor is abnormal (H62), then water pump circulation anti freeze control will not activate.  Back up heater anti freeze control Back up heater turns ON when ALL below conditions are fufilled:  Water inlet/outlet temp. < 25°C Water pump circulation anti freeze control activated and water pump ON for 4 minutes.

  • Page 182: Solar Operation (Optional)

    14.19 Solar Operation (Optional) 14.19.1 Solar Operation: Solar function:  This function allow user to control the solar pump to operate depend on the solar sensor reading compare to the tank installed. Solar pump will circulate the hot water energy store at solar panel to heat up the DHW Tank or Buffer Tank.

  • Page 183: Boiler Bivalent Control

    14.19.2 Solar Operation Control  Solar function can only be activate if the solar function selection “YES” from remote control. To achieve hot water from solar panel, indoor need to control the solar pump and circulate hot water from solar panel. Under normal case: Solar pump start condition: ...

  • Page 184: Parallel Mode

     Parallel Mode Parallel mode allows heat pump and boiler ON at the same time. Boiler operates as an additional heating capacity when low heat pump capacity at low ambient condition. Control detail: During operation ON at Heat mode or Tank mode or Heat + Tank mode Boiler signal turns ON when: ...

  • Page 185: External Room Thermostat Control (Optional)

    Contents:  After start condition fulfilled, set boiler prohibit flag = 1 Cancel condition: After 30 minutes from start condition fulfilled. Contents:  Set boiler prohibit flag = 0 14.21 External Room Thermostat Control (Optional) Purpose: Better room temperature control to fulfill different temperature request by external room thermostat. Recommended external room thermostat: Maker Characteristic...

  • Page 186: Three Ways Valve Control

    14.22 Three Ways Valve Control Purpose: - 3 ways valve is used to change flow direction of hot water from heat pump between heating side and tank side. Control contents: 3 ways valve switch Off: During 3 ways valve switch Off time, the hot water will provide heat capacity to heating side. 3 ways valve switch On: During 3 ways valve switch On time, the hot water will provide heat capacity to tank side.

  • Page 187: Anti-Stick Mode Operation

    14.24 Anti-Stick Mode Operation This mode is a control to prevent the water circuit actuator from locking up if not used for an extended period of time. Start conditions 1) A.M 3:00 o’clock every Monday. 2) Anti-stick mode = Enable. (Anti-stick mode is selected in custom menu) Control Contents: It works in the following order.

  • Page 188: External Off/On Control

    14.25 External OFF/ON Control  Communication circuit between indoor unit and external controller is as per below. External Controller mico Panasonic CN-THERMO  Maximum length of communication cable is 50 meter.  Control content: External Control Switch Control Panel OFF/ON...

  • Page 189: External Compressor Switch (Optional Pcb)

    14.26 External Compressor Switch (Optional PCB) External compressor switch port can have two purpose of control as below:  Heat source ON/OFF function (Remocon select “Heat source”)  Heater ON/OFF function (Remocon select “Heater”)  Heat source ON/OFF function Purpose: ...

  • Page 190: Sg Ready Control (Optional Pcb)

     Operation ON/OFF will depend on remocon request.  When Heat Mode is running with Contact Open, user change this setting to contact close, indoor will this signal to remocon judge and change mode to cool and send back to indoor. And it is same as from cool mode change to heat mode.
  • Page 191  While digital input is detected " 10 " (Capacity 1) Target temperature for heating and DHW Tank is changed according to the percentage set by Remote control setting. However, which setting temperature is change depend on system setting. Target temperature of cooling is change according to the adjustment value set by remocon setting. ...

  • Page 192: Demand Control (Optional Pcb)

    DHW Tank side New Tank Set Temperature = Tank Set Temperature * Remote Control setting for DHW ("Capacity 2) % * (Max regulation depends on the tank max setting limit) ** This function is not applicable for Cooling mode. Setting temperature for cooling is changed New Target water temperature = target water temperature + R/C setting for cool (*Capacity 2) * (Min/max regulation of cooling water set apply) HPU stop consumption...

  • Page 193: Holiday Mode

    14.30 Holiday Mode  Purpose: Promotes energy saving by allowing the user to stop the system during holiday and enables the system to resume at the preset temperature after holiday.  Control details: Indoor operate the unit according running mode request. Target temperature will follow holiday setting temperature.

  • Page 194: Protection Control

    15. Protection Control 15.1 Protection Control for All Operations 15.1.1 Time Delay Safety Control The compressor will not start for three minutes after stop of operation. 15.1.2 30 Seconds Forced Operation Once the compressor starts operation, it will not stop its operation for 30 seconds. However, it can be stopped using control panel at indoor unit.

  • Page 195: Pre-Heat Control

    15.1.5 High Pressure Sensor Control  Purpose: - To protect the system operation.  Detection period: - After compressor on for 1 minute.  Detection conditions: - When abnormal high voltage detection, 5 V or when open circuit detection 0V for 5 seconds continuously. ...

  • Page 196: Protection Control For Heating Operation

    15.2 Protection Control for Heating Operation 15.2.1 Outdoor Air Temperature Control The maximum current value is regulated when the outdoor air temperature rises above 14°C in order to avoid compressor overloading. 15.2.2 Deice Operation When outdoor pipe temperature and outdoor air temperature is low, deice operation start where outdoor fan motor stop.
  • Page 197  Deice operation time diagram a. Deice mode 1 control: Free Free Compressor Four way valve Water pump OD fan Free Free Expansion valve Free max 9 minutes 30 seconds deice 1 b. Deice mode 2 control: Deice mode 2 Normal Heating Deice...

  • Page 198: Protection Control For Cooling Operation

    15.3 Protection Control for Cooling Operation 15.3.1 Outdoor Air Temperature Control  The Compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.  This control will begin 1 minute after the compressor starts. ...

  • Page 199: Servicing Guide

    16. Servicing Guide 16.1 How to Take Out Front Plate Hook Open and Close Front Plate ① (ID) Remove the 2 mounting screws of Front Plate ① (ID). Slide it upwards to unhook the Front Plate ①  (ID) hook. Reverse above steps 1~2 for close it. Lift up Screws CAUTION...

  • Page 200: Pump Down Procedures

    16.4 Pump Down Procedures Refer below steps for proper pump down procedure. Press Press SW & scroll [Screen 4] to “Pump down”...

  • Page 201: How To Adjust Pump Speed

    16.5 How to Adjust Pump Speed Press & scroll to “Installer setup” [Screen 4] - Press SW to select & confirm maximum duty. (Range: 0x40~0xFF) [Screen 5] - Range (0.1~99.9)L/min [Screen 6] Press SW to select & confirm operation NOTE: Whenever at [Screen 5], if press SW to OFF, pump operation should be turned OFF.

  • Page 202: How To Unlock Cool Mode

    16.6 How to Unlock Cool Mode Operation must be OFF Press ( ) SW’s continuously for 5secs Display latest status retrieved from EEPROM...

  • Page 203: Eeprom Factory Default Data Setup Procedure

    16.7 EEPROM Factory Default Data Setup Procedure Initialization 12:00am,Mon Initializing . . . - EEPROM default data setup is only possible during initialization process. - Press simultaneously for 5secs continuously, initialization process will stop & EEPROM default data setup process will start. During EEPROM default data setup process, display should be as shown below.

  • Page 204: Dry Concrete Setup

    16.8 Dry Concrete Setup Press & scroll to “Installer setup” [Screen 4] [Screen 5] [Screen 6] Once ‘ON’ is confirm, stage 1 setup will start Every day stage will increment with its respective setup Next Page...
  • Page 205 - Press button to select no. of stages. - Press to store latest status. - Press button, display will return to [Screen 6]. - If suppose to select 10 stages, then setup will start from stage 1/10. - Press button to select set temperature. - Press button to store latest status.

  • Page 206: Maintenance Guide

    17. Maintenance Guide In order to ensure safety and optimal performance of the Hydro Unit, seasonal inspections on the Tank Unit, functional check of RCCB/ELCB, field wiring and piping have to be carried out at regular intervals. This maintenance should be carried out by authorized dealer. Contact dealer for scheduled inspection. Charging and Discharging the Water Make sure all the piping installations are properly done before carry out below steps.
  • Page 207 Check Water Pressure *(1 bar = 0.1 MPa) Water pressure should not lower than 0.5 bar (with inspects the Water Pressure from Remote Controller). If necessary add water into Tank Unit (via Tube Connector Check Pressure Relief Valve *Pressure Relief Valve is mounted in the Outdoor Unit. Confirm that the pressure relief valve is working properly, Pull the lever horizontal direction.

  • Page 208: Turn On Power Supply

    Indoor Unit Control Board Area Thorough visual inspection of the control board and look for defects, i.e. loose connection, melting of wire insulator and etc. RCCB/ELCB Ensure the RCCB/ELCB set to “ON” condition before check RCCB/ELCB. Turn on the power supply to the Tank Unit. This testing could only be done when power is supplied to the Tank Unit.

  • Page 209: Maintenance For Magnetic Water Filter Set

    17.1 Maintenance for Magnetic Water Filter Set 17.1.1 Service and Maintenance 17.1.3 Custom Menu If forget Password and cannot operate remote controller Setting method of Custom menu Press for 5 sec. Custom menu 12:00am,Mon Password unlock screen appears, press Confirm and it shall Cool mode reset.

  • Page 210: External Filter

    17.1.4 Specifications 17.1.4.1 Specifications of Fresh Water Was Heat Transfer Medium in Brazed Heat Exchanger Parameter Quality Limits for Tap Water on the Secondary Side Temperature Below 60°C 7 to 9 Alkalinity 60mg/I <HCO <300mg/I Conductivity < 500μS/cm Hardness , Mg ] / [HCO ] >...

  • Page 211: Troubleshooting Guide

    18. Troubleshooting Guide 18.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan.

  • Page 212: Relationship Between The Condition Of The Air-To-Water Heatpump Indoor And Outdoor Units And Electric Current

    18.2 Relationship Between the Condition of the Air-to-Water Heatpump Indoor and Outdoor Units and Electric Current Heating Mode Cooling Mode Condition of the Air-to-Water Heatpump indoor and outdoor units Electric current during operation Electric current during operation Water leakage or insufficient water flow rate in the system Excessive amount of refrigerant Inefficient compression...

  • Page 213: Breakdown Self Diagnosis Function

    18.3 Breakdown Self Diagnosis Function 18.3.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  When abnormality occur during operation, the system will stop operation, and OFF/ON control panel LED will blink and error code will display on the control panel. ...
  • Page 214 Press button and select “System Check” Press SW to select [Screen 4] “Error history” Display last 4 error retrieved from EEPROM...

  • Page 215: Error Codes Table

    18.4 Error Codes Table Diagnosis display Abnormality/Protection control Abnormality judgement Primary location to verify No abnormality detected — —  Indoor/outdoor connection wire  Indoor/outdoor PCB Indoor/Outdoor capacity unmatched 90s after power supply  Specification and combination table in catalogue ...
  • Page 216 Diagnosis display Abnormality/Protection control Abnormality judgement Primary location to verify  Outdoor high pressure sensor Outdoor high pressure overload  Water pump or water leakage protection  Clogged expansion valve or strainer H98 / F95 — Cooling high pressure overload ...

  • Page 217: Self-Diagnosis Method

    Does spare part number match with the indoor/outdoor allowable indoor unit capacity? outdoor PCb for specified model. model? Indoor Allowable Outdoor WH-SDC0316M9E8 WH-WXG09ME8 WH-WXG12ME8 WH-WXG16ME8 Has the indoor PCB being replaced anew? Set the capacity rank at control panel (refer I/I).
  • Page 218 18.5.2 Compressor Tank Temperature Sensor Abnormality (H15) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the compressor tank temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 219 18.5.3 Zone 2 Water Pump Abnormality (H17) Malfunction Decision Conditions: During startup and operation of cooling and heating, the rotation speed detected by the IPM of water pump motor during water pump operation is used to determine abnormal water pump (feedback of rotation > 6,000rpm or <...
  • Page 220 18.5.4 Water Pump Abnormality (H20) Malfunction Decision Conditions: During startup and operation of cooling and heating, the rotation speed detected by the IPM of water pump motor during water pump operation is used to determine abnormal water pump (feedback of rotation > 6,000rpm or <...
  • Page 221 18.5.5 Refrigerant Liquid Temperature Sensor Abnormality (H23) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the refrigerant liquid temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 222 18.5.6 Service Valve Error (H27) Malfunction Decision Conditions: During cooling operation, when:- [a] Indoor refrigerant pipe temperature at compressor startup - present indoor refrigerant pipe temperature < 2°C [b] Present high pressure - high pressure at compressor startup < 5kg/cm **Judgment only for first time cooling operation and not during pump down operation.
  • Page 223 18.5.7 Abnormal Solar Sensor (H28) Malfunction Caused: Faulty connector connection. Faulty solar sensor. Faulty indoor sub PCB. Abnormality Judgment: Continue for 5 seconds. For safety reason and to prevent Abnormal solar sensor component breakdown, always switch Caution off the power before remove and connect the component.
  • Page 224 18.5.8 Abnormal Swimming Pool Sensor (H31) Malfunction Caused: Faulty connector connection. Faulty swimming pool sensor. Faulty indoor sub PCB. Abnormality Judgment: Continue for 5 seconds. For safety reason and to prevent Abnormal swimming pool sensor component breakdown, always switch Caution off the power before remove and connect the component.
  • Page 225 18.5.9 Abnormal Buffer Tank Sensor (H36) Malfunction Caused: Faulty connector connection. Faulty buffer tank sensor. Faulty indoor sub PCB. Abnormality Judgment: Continue for 5 seconds. For safety reason and to prevent Abnormal buffer tank sensor component breakdown, always switch Caution off the power before remove and connect the component.
  • Page 226 Brand code not match component breakdown, always switch Caution off the power before remove and connect the component. ● Use only Panasonic units. Check the brand of indoor and outdoor unit both Panasonic? ● Change to Panasonic unit. Change PCB outdoor...
  • Page 227 18.5.11 Compressor Low Pressure Protection (H42) Malfunction Decision Conditions: During operation of heating and after 5 minutes compressor ON, when outdoor pipe temperature below -40°C or above 37°C is detected by the outdoor pipe temperature sensor. Malfunction Caused: Dust accumulation on the outdoor unit heat exchanger. Air short circuit at outdoor unit.
  • Page 228 18.5.12 Abnormal Zone 1 Sensor (H43) Malfunction Caused: Faulty connector connection. Faulty buffer tank sensor. Faulty indoor sub PCB. Abnormality Judgment: Continue for 5 seconds. For safety reason and to prevent Abnormal zone 1 sensor component breakdown, always switch Caution off the power before remove and connect the component.
  • Page 229 18.5.13 Abnormal Zone 2 Sensor (H44) Malfunction Caused: Faulty connector connection. Faulty buffer tank sensor. Faulty indoor sub PCB. Abnormality Judgment: Continue for 5 seconds. For safety reason and to prevent Abnormal zone 2 sensor component breakdown, always switch Caution off the power before remove and connect the component.
  • Page 230 18.5.14 Water Flow Switch Abnormality (H62) Malfunction Decision Conditions: During operation of cooling and heating, the water flow detected by the outdoor water flow switch is used to determine water flow error. Malfunction Caused: Faulty water pump. Water leak in system. Faulty connector connection.
  • Page 231 18.5.15 Outdoor High Pressure Abnormality (H64) Malfunction Decision Conditions: During operation of cooling and heating, when the outdoor high pressure sensor output signal is 0 Vdc or 5 Vdc. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 4 times in 120 minutes.
  • Page 232 Check if internal water pump Use buffer tank to CAUTION is used and it is directly separate external installed to the air-to-water water pump from Panasonic heatpump unit circuit. air-to-water heatpump External Air-to-Water Pump Heatpump (without buffer tank) unit circuit.
  • Page 233 18.5.17 Abnormal External Thermistor 1 (H67) Malfunction Caused: Faulty connector connection. Faulty room temperature zone 1 sensor. Faulty indoor sub PCB. Abnormality Judgment: Continue for 5 seconds. For safety reason and to prevent Abnormal external thermistor 1 component breakdown, always switch Caution off the power before remove and connect the component.
  • Page 234 18.5.18 Abnormal External Thermistor 2 (H68) Malfunction Caused: Faulty connector connection. Faulty room temperature zone 2 sensor. Faulty indoor sub PCB. Abnormality Judgment: Continue for 5 seconds. For safety reason and to prevent Abnormal external thermistor 2 component breakdown, always switch Caution off the power before remove and connect the component.
  • Page 235 18.5.19 Back-up Heater OLP Abnormality (H70) Malfunction Decision Conditions: During operation of Back-up Heater, when no power supplies to Back-up heater or OLP open circuit. Malfunction Caused: Faulty power supply connector connection. Faulty connector connection. Faulty Back-up heater overload protector (OLP). Faulty indoor unit PCB (main).
  • Page 236 18.5.20 Tank Temperature Sensor Abnormality (H72) Malfunction Decision Conditions: When tank connection is set to ON, the temperatures detected by the tank temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty indoor unit PCB (main). Faulty outdoor unit PCB (sub).
  • Page 237 18.5.21 PCB Communication Error (H74) Malfunction Decision Conditions: When External PCB connection is select “YES” and no communication with External PCB micon for 10 seconds and above. Malfunction Caused: Faulty connector connection. Faulty indoor PCB. Faulty indoor sub PCB. Abnormality Judgment: After 1 minute operation started.
  • Page 238 18.5.22 Indoor-Control Panel Communication Abnormality (H76) Malfunction Decision Conditions: During standby and operation of cooling and heating, indoor-control panel error occur. Malfunction Caused: Faulty connector connection. Faulty control panel. Faulty indoor unit PCB (main). Faulty outdoor unit PCB (sub). For safety reason and to prevent component breakdown, Troubleshooting: always switch off the power before remove and connect the component.
  • Page 239 18.5.23 Indoor/Outdoor Abnormal Communication (H90) Malfunction Decision Conditions: During operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction Caused: Faulty outdoor unit PCB (main). Faulty outdoor unit PCB (sub). Faulty indoor unit PCB (main).
  • Page 240 18.5.24 Tank Booster Heater OLP Abnormality (H91) Malfunction Decision Conditions: During operation of tank booster heater, and tank booster heater OLP open circuit. Malfunction Caused: Faulty connector connection. Faulty tank booster heater overload protector (OLP). Faulty indoor unit PCB (main). Abnormality Judgment: Continue for 60 seconds.
  • Page 241 18.5.25 Unspecified Voltage between Indoor and Outdoor (H95) Malfunction Decision Conditions: The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused: Insufficient power supply. Faulty outdoor unit PCB (noise filter/main). For safety reason and to prevent component breakdown, Troubleshooting: always switch off the power before remove and connect the component.

  • Page 242: Operation Mode

    18.5.26 Outdoor High Pressure Protection (H98 / F95) Malfunction Decision Conditions: During operation of cooling / heating, when pressure 3.2 MPa and above is detected by outdoor high pressure sensor. Malfunction Caused: Faulty water pump. Insufficient water flow rate in system. Water leak in system.
  • Page 243 For safety reason and to prevent component breakdown, Troubleshooting: always switch off the power before remove and connect the component. Caution Operation Mode Cooling Check the outdoor unit fan motor operation. Check the dust accumulation on the outdoor unit heat exchanger. Replace the outdoor unit Is the outdoor unit fan fan motor and/or outdoor...
  • Page 244 18.5.27 Indoor Freeze-up Protection (H99) Malfunction Decision Conditions: During anti-freezing control in cooling operation, when the refrigerant liquid temperature < 0°C. Malfunction Caused: Faulty water pump. Insufficient water flow rate in system. Water leak in system. Clogged expansion valve or strainer. Refrigerant shortage (refrigerant leakage).
  • Page 245 18.5.28 Outdoor High Pressure Switch Activate (F12) Malfunction Decision Conditions: During operation of cooling and heating, when pressure 3.9 MPa and above is detected by outdoor high pressure switch. Malfunction Caused: Dust accumulation on the outdoor unit heat exchanger. Air short circuit at outdoor unit. Faulty water pump.
  • Page 246 18.5.29 Compressor Rotation Failure (F14) Malfunction Decision Conditions: A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused: Compressor terminal disconnect. Faulty outdoor unit PCB (main). Faulty compressor. Abnormality Judgment: Continue 4 times in 20 minutes. For safety reason and to prevent component breakdown, Troubleshooting: always switch off the power before remove and connect the component.
  • Page 247 18.5.30 Outdoor Fan Motor (DC Motor) Mechanism Locked (F15) Malfunction Decision Conditions: The rotation speed detected by the Hall IC of the fan motor during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550 rpm or < 20 rpm). Malfunction Caused: Operation stop due to short circuit inside the fan motor winding.
  • Page 248 18.5.31 Input Over Current Detection (F16) Malfunction Decision Conditions: During operation of cooling and heating, when outdoor current above WXG09ME8 13.8A, WXG12ME8 16.8A & WXG16ME8 21.0A is detected by the current transformer (CT) in the outdoor unit PCB. Malfunction Caused: Excessive refrigerant.
  • Page 249 18.5.32 Compressor Overheating (F20) Malfunction Decision Conditions: During operation of cooling and heating, when temperature above 112°C is detected by the compressor tank temperature sensor. Malfunction Caused: Faulty compressor tank temperature sensor. Refrigerant shortage (refrigerant leakage). Clogged expansion valve or strainer. Faulty outdoor unit PCB (main).
  • Page 250 18.5.33 IPM Overheating (F22) Malfunction Decision Conditions: During operation of cooling and heating, when temperature 95°C is detected by the outdoor IPM temperature sensor. Malfunction Caused: Faulty outdoor unit fan motor. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 4 times in 30 minutes. For safety reason and to prevent component breakdown, Troubleshooting: always switch off the power before remove and connect the component.
  • Page 251 18.5.34 Output Over Current Detection (F23) Malfunction Decision Conditions: During operation of cooling and heating, when outdoor DC current is above set value is detected by the IPM DC Peak sensing circuitry in the outdoor unit PCB (main). Malfunction Caused: Faulty outdoor unit PCB (main).
  • Page 252 18.5.35 Refrigeration Cycle Abnormality (F24) Malfunction Decision Conditions: During compressor running (heating / cooling) for more than 10 minutes except deice and test mode. During heating, water outlet and water inlet difference is less than 3°C. During cooling, water outlet and water inlet difference is less than 2°C. During heating, high pressure <...
  • Page 253 18.5.36 Four Way Valve Abnormality (F25) Malfunction Decision Conditions: During heating operation, when the indoor pipe temperature of thermostat ON indoor unit < 0°C. During cooling operation, when the indoor pipe temperature of thermostat ON indoor unit > 45°C. Malfunction Caused: Faulty sensor.
  • Page 254 18.5.37 Outdoor High Pressure Switch Abnormal (F27) Malfunction Decision Conditions: During compressor stop, and outdoor high pressure switch is remain opened. Malfunction Caused: Faulty connector connection. Faulty switch. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue for 1 minute. For safety reason and to prevent component breakdown, Troubleshooting: Caution always switch off the power before remove and connect the component.
  • Page 255 18.5.38 Outdoor Water Outlet Temperature Sensor 2 Abnormality (F30) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the water outlet temperature sensor 2 are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor.
  • Page 256 18.5.39 Outdoor Air Temperature Sensor Abnormality (F36) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 257 18.5.40 Indoor Water Inlet Temperature Sensor Abnormality (F37) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the indoor water inlet temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor.
  • Page 258 18.5.41 Outdoor Discharge Pipe Temperature Sensor Abnormality (F40) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor.
  • Page 259 18.5.42 Power Factor Correction (PFC) Abnormality (F41) Malfunction Decision Conditions: During operation of cooling and heating, when the PFC protection circuitry in the outdoor unit PCB (main) senses abnormal high DC voltage level. Malfunction Caused: Power supply surge. Compressor windings not uniform. Faulty outdoor unit PCB (main).
  • Page 260 18.5.43 Outdoor Pipe Temperature Sensor Abnormality (F42) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 261 18.5.44 Outdoor Defrost Temperature Sensor Abnormality (F43) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the outdoor defrost temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 262 18.5.45 Indoor Water Outlet Temperature Sensor Abnormality (F45) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the indoor water outlet temperature sensor are used to determine sensor errors. Malfunction Caused: Faulty connector connection. Faulty sensor.
  • Page 263 18.5.46 Outdoor Current Transformer Open Circuit (F46) Malfunction Decision Conditions: A current transformer (CT) open circuit is detected by checking the compressor running frequency ( rated frequency) and CT detected input current (< 0.65 A) for continuously 20 seconds. Malfunction Caused: CT defective.
  • Page 264 18.5.47 Outdoor Evaporator Outlet Temperature Sensor Abnormality (F48) Malfunction Decision Conditions: During start up and operation of cooling and heating, the temperature detected by outdoor evaporator outlet sensor is used to determine sensor error. Malfunction Caused: Faulty connector connection Faulty sensor Faulty outdoor unit PCB (main) Abnormality Judgment: Continuous for 5 seconds...
  • Page 265 18.5.48 Outdoor Bypass Outlet Temperature Sensor Abnormality (F49) Malfunction Decision Conditions: During start up and operation of cooling and heating, the temperature detected by outdoor bypass outlet sensor is used to determine sensor error. Malfunction Caused: Faulty connector connection Faulty sensor Faulty outdoor unit PCB (main) Abnormality Judgment: Continuous for 5 seconds...
  • Page 266 18.5.49 Outdoor Water Inlet 2 Temperature Sensor Abnormality (F50) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the indoor water inlet 2 temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor.
  • Page 267 18.5.50 Outdoor Economizer Outlet Temperature Sensor Abnormality (F51) Malfunction Decision Conditions: During start up and operation of cooling and heating, the temperature detected by outdoor economizer outlet sensor is used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 268 18.5.51 Outdoor Bypass Inlet Temperature Sensor Abnormality (F52) Malfunction Decision Conditions: During start up and operation of cooling and heating, the temperature detected by outdoor bypass inlet sensor is used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 269 18.5.52 Main Expansion Valve Overcurrent Protection (F53) Malfunction Decision Conditions: During start up and operation of cooling and heating, the determination is made based on whether or not an overcurrent flows through the main expansion valve coil. Malfunction Caused: Faulty connector connection Faulty main expansion valve coil Faulty outdoor unit PCB (main) Abnormality Judgment:...
  • Page 270 18.5.53 Bypass Expansion Valve Overcurrent Protection (F54) Malfunction Decision Conditions: During start up and operation of cooling and heating, the determination is made based on whether or not an overcurrent flows through the bypass expansion valve coil. Malfunction Caused: Faulty connector connection Faulty bypass expansion valve coil Faulty outdoor unit PCB (main) Abnormality Judgment:...
  • Page 271 18.5.54 Electrical Anode Error (F55) Malfunction Decision Conditions: If the indoor unit type is Bi-bloc, an error will occur due to a mismatch in settings. Malfunction Caused: The settings are incorrect. Abnormality Judgment: Continuous for 60 seconds For safety reason and to prevent component breakdown, Troubleshooting: always switch off the power before remove and connect the component.
  • Page 272 18.5.55 Outdoor Heat Exchanger Middle Temperature Sensor Abnormality (F56) Malfunction Decision Conditions: During start up and operation of cooling and heating, the temperature detected by outdoor heat exchanger middle sensor is used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor.

  • Page 273: Disassembly And Assembly Instructions

    19. Disassembly and Assembly Instructions WARNING High Voltage are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 19.1 Indoor Unit 19.1.1 To Remove Front Plate Hook...

  • Page 274: To Remove Control Panel

    19.1.3 To Remove Control Panel 3. Remove 2 screws then take out the bottom case. Bottom Top case case Claw (3 places) Insert the driver and Disconnect the slightly turn. Remote controller wiring Slide it Flat-blade downwards screwdriver to unhook 1.
  • Page 275 19.1.5 To Remove Electronic Controller Board Electronic Controller Board 1. Disconnect all connectors and lead wire from the electronic controller board. (Refer Indoor Unit Wiring Connection Diagram) 2. Release 2 screws and 3 hooks from electronic controller board. 19.1.6 To Open Control Board (C-BOX) CAUTION 3 Screws...

  • Page 276: Outdoor Unit

    This symbol shows that this equipment uses a flammable refrigerant with safety A3 group per ISO 817. If the WARNING refrigerant is leaked, together with an external ignition source, there is a possibility of fire / explosion.  If you are working on the R290 product, before starting work and when entering the service area, always turn ON the combustible gas leak detector to ensure there is no leakage.
  • Page 277 4. Unscrew and remove Top Plate. 5. Unscrew and remove Front Plate. 7. Unscrew and remove the control board complete. 6. Remove all connectors. Terminal board Outdoor unit Stand alone Connection CN-DATA To Indoor Unit CN-TH Tank TH Remote Controller CN-RC Network Adaptor CN-CNT...
  • Page 278 8. Unscrew the control board cover screws and remove the control board cover. Control board cover o-ring 10. Unscrew and remove Main PCB. Terminal board o-ring 9. Remove all connectors from Main PCB main PCB and remove lead wires o-ring from terminal board.

  • Page 279: Technical Data

    20. Technical Data 20.1 Operation Characteristics 20.1.1 WH-WXG09ME8 Heating Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 7°C (DBT), 6°C (WBT) Indoor water inlet temperature : 30°C Indoor water outlet temperature : 35°C Water Piping length between outdoor unit and indoor unit : 5 m 9.100 8.900 8.700...
  • Page 280 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Water Piping length between outdoor unit and indoor unit : 5 m 9.800 9.520 9.240...
  • Page 281 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 19°C Indoor water outlet temperature : 14°C Water Piping length between outdoor unit and indoor unit : 5 m 11.000 10.600 10.200...
  • Page 282 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 23°C Indoor water outlet temperature : 18°C Water Piping length between outdoor unit and indoor unit : 5 m 11.000 10.500 10.000...
  • Page 283 20.1.2 WH-WXG12ME8 Heating Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 7°C (DBT), 6°C (WBT) Indoor water inlet temperature : 30°C Indoor water outlet temperature : 35°C Water Piping length between outdoor unit and indoor unit : 5 m 12.200 11.800 11.400...
  • Page 284 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Water Piping length between outdoor unit and indoor unit : 5 m 12.200 11.900 11.600...
  • Page 285 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 19°C Indoor water outlet temperature : 14°C Water Piping length between outdoor unit and indoor unit : 5 m 13.700 13.200 12.700...
  • Page 286 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 23°C Indoor water outlet temperature : 18°C Water Piping length between outdoor unit and indoor unit : 5 m 12.500 12.300 12.100...
  • Page 287 20.1.3 WH-WXG16ME8 Heating Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 7°C (DBT), 6°C (WBT) Indoor water inlet temperature : 30°C Indoor water outlet temperature : 35°C Water Piping length between outdoor unit and indoor unit : 5 m 16.500 16.000 15.500...
  • Page 288 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Water Piping length between outdoor unit and indoor unit : 5 m 15.500 14.800 14.100...
  • Page 289 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 19°C Indoor water outlet temperature : 14°C Water Piping length between outdoor unit and indoor unit : 5 m 16.000 15.200 14.400...
  • Page 290 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 23°C Indoor water outlet temperature : 18°C Water Piping length between outdoor unit and indoor unit : 5 m 16.500 16.100 15.700...

  • Page 291: Heating Capacity Table

    20.2 Heating Capacity Table 20.2.1 WH-WXG09ME8 Water Out (°C) Capacity Input Power Current Capacity Input Power Current Capacity Input Power Current Outdoor Air (°C) 7900 3500 8200 4200 7900 4800 7900 2940 8200 3340 7900 3990 9000 2740 9000 3300 9000 3970 9000...
  • Page 292 20.2.3 WH-WXG16ME8 Water Out (°C) Capacity Input Power Current Capacity Input Power Current Capacity Input Power Current Outdoor Air (°C) 14200 6800 14200 7800 11.4 14200 8600 12.5 14200 5400 14200 6100 14200 6900 10.1 16000 5900 16000 6700 16000 7700 11.2 16000...

  • Page 293: Cooling Capacity Table

    20.3 Cooling Capacity Table 20.3.1 WH-WXG09ME8 Water Out (°C) Capacity Input Power Current Capacity Input Power Current Capacity Input Power Current Outdoor Air (°C) 9800 2000 11000 2040 10800 1380 9300 2280 10500 2350 10200 1490 9000 2490 9800 2630 9000 1710 8400...

  • Page 294: Exploded View And Replacement Parts List

    Authorized representative in EU Panasonic Marketing Europe GmbH Panasonic Testing Centre Winsbergring 15, 22525 Hamburg, Germany Contact in the UK: Panasonic UK, a branch of Panasonic Marketing Europe GmbH Maxis 2, Western Road, Bracknell, Berkshire, RG12 1RT Email: customer.phvac@eu.panasonic.com R290...
  • Page 295 Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 296 CAUTION Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 297 × 4 Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 298 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-SDC0316M9E8 REMARK BASE PAN ACXD52-06920 FOAMED POLYSTYRENE (EXPN VESSEL ACXG07-08900 HLDR) FOAMED POLYSTYRENE (TUBE HLDR) ACXG07-08910 CONNECTING BAR (LEFT PILLER) ACXE26-03280 CONNECTING BAR (RIGHT PILLER) ACXE26-03290 SCREW (D4×8) H551217 BOX SHAPED PLATE (VESSEL_HOLDER) ACXD66-04460 SCREW (D4×8)
  • Page 299 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-SDC0316M9E8 REMARK LEAD WIRE - COMPLETE (HEATER-HEAT2) ACXA61C05340 LEAD WIRE - COMPLETE (HEATER-HEAT1) A68C1437 LEAD WIRE - COMPLETE (TER-HTR1) ACXA61C01200 LEAD WIRE - COMPLETE (PCB-HTR1) ACXA61C01230 MACHINE SCREW & WASHER ASSY XYN4DC8FJ BAND...
  • Page 300 REMOTE CONTROL SWITCH - COMPLETE ACXA75C26381 BOX SHAPED PLATE ACXD66-03970 SELF TAPPING SCREW XTB4+8CFJ SELF TAPPING SCREW XTB4+8FFJ DECORATION BASE (L) ACXE35-02990 DECORATION BASE (PANASONIC) ACXE35-03000 DECORATION BASE (R) ACXE35-03010 DECORATION BASE (AQUAREA) ACXE35-03020 WIRING DIAGRAM ACXF29-01161 NAME PLATE ACXF09-10390...
  • Page 301 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-SDC0316M9E8 REMARK POLY - E. FOAM (FLAME PROOF) EN5A15-40 ACCESSORY COMPL. (FLEX. PIPE) G87C900 CAUTION LABEL ACXF75-14410 Note:  All parts are supplied from PHVACCZ, Czech (Vendor Code: 00029407).  “O” marked parts are recommended to be kept in stock.

  • Page 302: Outdoor Unit

    21.2 Outdoor Unit ACXF71-25700 ACXF71-25710 C1 C2 C3 TANK REMOTE SENSOR CONTROLLER ACXF71-34380 DTL M DTL B DTL N DTL C DTL E Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 303 DTL L DTL K DTL O Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 304 DTL J DTL I DTL H Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 305 Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 306 DTL A DTL B DTL C Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 307 DTL D DTL E BLUE MARKING BLACK MARKING GREEN MARKING YELLOW MARKING MARKING 138 WH-WXG16ME8 WH-WXG09ME8 WH-WXG12ME8 WHITE MARKING MARKING MARKING DTL F Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 308 x2 154 DTL G Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 309 ACXF71-34390 DTL H DTL I DTL J Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 310 DTL K DTL L Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 311 DTL M DTL N Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 312 CABINET FRONT PLATE-COMPLETE DTL O Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 313 DTL P Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 314 Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 315 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-WXG09ME8 WH-WXG12ME8 WH-WXG16ME8 REMARK BASE PAN - COMPLETE ACXD52C01870 ← ← BASE PAN ASSY ACXD52K05580 ← ← CONVEX PIECE ACXD75-00710 ← ← SCREW H551040J ← ← PACKING B811017 ← ← ANTI - VIBRATION BUSHING ACXH50-00480 ←...
  • Page 316 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-WXG09ME8 WH-WXG12ME8 WH-WXG16ME8 REMARK EXPANSION VALVE (MAIN EXP. ACXB05-01570 ← ← Ο VALVE) STRAINER B111032 ← ← SOUND PROOF MATERIAL - COMP. ACXG30-14830 ← ← BODY SOUND PROOF MATERIAL - COMP. ACXG30-14840 ← ←...
  • Page 317 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-WXG09ME8 WH-WXG12ME8 WH-WXG16ME8 REMARK RETAINING RING (25.4) ACXH58-00370 ← ← L-SHAPED TUBE ACXT20-15030 ← ACXT20-15330 PACKING ACXB81-06910 ← ← RETAINING RING (25.4) ACXH58-00370 ← ← FILTER COMPLETE ACXB51C00160 ← ← Ο TUBE ASSY COMPLETE INHOUSE ACXT00C49260 ←...
  • Page 318 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-WXG09ME8 WH-WXG12ME8 WH-WXG16ME8 REMARK SCREW ACXH55-07140 ← ← SCREW ACXH55-07140 ← ← SCREW H55440J ← ← SCREW H55406J ← ← RUBBER G251015 ← ← V-COIL COMPLETE (4-WAY VALVE) ACXA43C08090 ← ← Ο SCREW H55082J ←...
  • Page 319 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-WXG09ME8 WH-WXG12ME8 WH-WXG16ME8 REMARK SCREW H551198 ← ← LEAD WIRE - COMPLETE ACXA61C00660 ← ← Ο (COMPRESSOR) MACHINE SCREW & WASHER ASSY XYN4+F10FJ ← ← FIXED INDUCTORS G0C103Z00006 ← ← CIRCUIT BREAKER ACXA18-00021 ←...
  • Page 320 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-WXG09ME8 WH-WXG12ME8 WH-WXG16ME8 REMARK SCREW ACXH55-07980 ← ← SCREW ACXH55-07140 ← ← CABINET FRONT PLATE (L) ACXE06-05620 ← ← HANDLE ACXE16-00230G ← ← EPT SEAL ACXD3A10-92 ← ← SCREW ACXH55-07980 ← ← SCREW ACXH55-07980 ←...
  • Page 321 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-WXG09ME8 WH-WXG12ME8 WH-WXG16ME8 REMARK BASE - BOARD COMPLETE ACXG62C03020 ← ← SHOCK ABSORBER (MIDDLE LEFT) ACXG70-16300 ← ← SHOCK ABSORBER (MIDDLE) ACXG70-16310 ← ← SHOCK ABSORBER (MIDDLE RIGHT) ACXG70-16320 ← ← SHOCK ABSORBER (UPPER LEFT) ACXG70-15320 ←...

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