Panasonic WH-SHF09D3E8 Service Manual
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Panasonic WH-SHF09D3E8 Service Manual

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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 product or products dealt with in this service information by anyone else could result in serious injury or death.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
WH-SHF09D3E8
WH-SHF12D9E8
WARNING
PRECAUTION OF LOW TEMPERATURE
Indoor Unit
© Panasonic Appliances Air-Conditioning (M) Sdn. Bhd. 2012.
Unauthorized copying and distribution is a violation of law.
Order No. PAPAMY1204105CE
Outdoor Unit
WH-UH09DE8
WH-UH12DE8

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Summary of Contents for Panasonic WH-SHF09D3E8

  • Page 1 PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Appliances Air-Conditioning (M) Sdn. Bhd. 2012. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    12.2 Water Pump ..........51 List ..............114 12.3 Pump Down Operation ........52 12.4 Flow Switch..........52 19.1 WH-SHF09D3E8 WH-SHF12D9E8 ..114 12.5 Force Heater Mode Operation .....52 19.2 WH-UH09DE8 WH-UH12DE8 ....116 12.6 Indoor Unit Safety ........53 12.7 Auto Restart Control ........53 12.8 Indication Panel ...........53...

  • Page 3: Safety Precautions

    1. Safety Precautions Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating and main circuit for the model installed. The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below.
  • Page 4 19. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire. 20. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly done, the set will drop and cause injury.

  • Page 5: Specifications

    2. Specifications WH-SHF09D3E8 WH-UH09DE8 Item Unit Outdoor Unit Performance Test Condition EN14511 Condition A7W35 A2W35 (Ambient/Water) 9.00 9.00 Heating Capacity BTU/h 30700 30700 kcal/h 7740 7740 4.55 3.40 kcal/hW 3.91 2.92 dB (A) Noise Level Power Level dB Air Flow...
  • Page 6 Item Unit Running Current Maximum Current For Heat Pump System 10.4 Power Factor Power factor means total figure of compressor and outdoor fan motor. Number of core Power Cord Length m (ft) Thermostat Electronic Control Protection Device Electronic Control Item Unit Indoor Unit Performance Test Condition...

  • Page 7: Wh-Shf12D9E8 Wh-Uh12De8

    WH-SHF12D9E8 WH-UH12DE8 Item Unit Outdoor Unit Performance Test Condition EN14511 Condition A7W35 A2W35 (Ambient/Water) 12.00 12.00 Heating Capacity BTU/h 41000 41000 kcal/h 10320 10320 4.40 3.23 kcal/hW 3.78 2.77 dB (A) Noise Level Power Level dB Air Flow /min (ft /min) 80.0 (2830) Refrigeration Control Device...
  • Page 8 Item Unit Running Current Maximum Current For Heat Pump System 10.9 Power Factor Power factor means total figure of compressor and outdoor fan motor. Number of core Power Cord Length m (ft) Thermostat Electronic Control Protection Device Electronic Control Item Unit Indoor Unit Performance Test Condition...

  • Page 9: Features

    3. Features Inverter Technology - Energy saving High Efficiency Compact Design Environment Protection - Non-ozone depletion substances refrigerant (R407C) Long Installation Piping - Long piping up to 30 meter with height difference 20 meter - Flexible 4-way piping for outdoor unit Easy to use control panel Weekly Timer setting Quality Improvement...

  • Page 10: Location Of Controls And Components

    4. Location of Controls and Components Indoor Unit 4.1.1 Location of Control...
  • Page 13 4.1.2 Weekly Timer Setting...
  • Page 14 4.1.3 Setting Up the Special Functions...

  • Page 15: Outdoor Unit

    4.1.4 Main Components Outdoor Unit...

  • Page 16: Dimensions

    5. Dimensions Indoor Unit...

  • Page 17: Outdoor Unit

    Outdoor Unit...

  • Page 18: Refrigeration And Water Cycle Diagram

    6. Refrigeration and Water Cycle Diagram Piping size Min. Max. Rated Max. Additional Piping Piping Model Length Elevation Refrigerant Liquid Length Length (g/m) UH09DE8 5/8” 3/8” 5~7.5 UH12DE8 5/8” 3/8” 5~7.5 * If piping length is over common length, additional refrigerant should be added as shown in the table.

  • Page 20: Block Diagram

    7. Block Diagram...

  • Page 21: Wiring Connection Diagram

    8. Wiring Connection Diagram Indoor Unit 8.1.1 WH-SHF09D3E8...
  • Page 22 8.1.2 WH-SHF12D9E8...

  • Page 23: Outdoor Unit

    Outdoor Unit...

  • Page 24: Electronic Circuit Diagram

    9. Electronic Circuit Diagram Indoor Unit 9.1.1 WH-SHF09D3E8...
  • Page 25 9.1.2 WH-SHF12D9E8...

  • Page 26: Outdoor Unit

    Outdoor Unit...

  • Page 27: Printed Circuit Board

    10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board...
  • Page 28 10.1.2 Solar Printed Circuit Board (Optional)

  • Page 29: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board...
  • Page 30 10.2.2 Noise Filter Printed Circuit Board...

  • Page 31: Installation Instruction

    11. Installation Instruction 11.1 Select the Best Location Indoor Unit Piping size Addi- Max. Min. Max. There should not be any heat source or steam Rated tional Eleva- Piping Piping Model Length Refrige- near the unit. tion Length Length Gas Liquid rant A place where air circulation in the room is good.

  • Page 32: Indoor Unit

    11.3 Indoor Unit 11.3.1 How to Fix Installation Plate 11.3.3 Indoor Unit Installation The mounting wall is strong and solid enough to prevent it from vibration. 11.3.3.1 Install the Indoor Unit When connecting solar pump station cable between indoor unit and solar pump station, the distance between both apparatuses shall be 2 ~ 8 meters and the length of the said cable must be shorter than 10 meter.
  • Page 33 11.3.3.3 Indoor Unit Refrigerant Pipe An external filter (30 mesh or more, field supplied) must be installed before the water inlet of the indoor Installation unit (with “WATER IN” indication). Please make flare after inserting flare nut Refer to Diagram 4.1 for pipe connection of (located at joint portion of tube assembly) onto Radiator, Floor Heater, Tank Unit, Solar Pump the copper pipe.

  • Page 34: Connect The Cable To The Indoor Unit

    ) and power supply 3 cord (5 x min 1.5mm ) (Not applicable for WH-SHF09D3E8), type designation 60245 IEC 57 or heavier cord to the terminal board, and to the other end of the cord to isolating device (Disconnecting means).
  • Page 35 Terminal screw Tightening torque N•cm {kgf•cm} 157~196 {16~20} 196~245 {20~25} 11.3.4.1 Wire Stripping and Connecting Requirement...
  • Page 36 11.3.4.2 Connecting Requirement For SHF09D3E8/UH09DE8 The equipment’s power supply 1 complies with IEC/EN 61000-3-2. The equipment’s power supply 2 complies with IEC/EN 61000-3-2. For SHF12D9E8/UH12DE8 The equipment’s power supply 1 complies with IEC/EN 61000-3-2. The equipment’s power supply 2 complies with IEC/EN 61000-3-2. The equipment’s power supply 3 complies with IEC/EN 61000-3-2.

  • Page 37: Outdoor Unit

    11.4 Outdoor Unit 11.4.1 Install the Outdoor Unit After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10mm). When installing at roof, please consider strong wind and earthquake.

  • Page 38: Connect The Cable To The Outdoor Unit

    11.4.3 Evacuation of the Equipment WHEN INSTALLING AN AIR-TO-WATER HEATPUMP, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve.

  • Page 39: Pipe Insulation

    Secure the cable onto the control board with the holder (clamper). Select required direction and apply protective bushing provided in accessories to protect cables from sharp edges. Once all wiring work has been completed, tie the cables and cord together with the binding strap so that they do not touch other parts such as the compressor and bare copper pipes.

  • Page 40: Operation And Control

    12. Operation and Control 12.1 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 41 Booster heater control - Booster heater turn On and Off follow normal operation. - Booster heater turn ON condition: During startup time (initialization), Booster heater turn ON after DELAY TIMER. When tank temperature lower than HEATER ON TEMP 20 minutes from previous heater off. - Booster heater turn OFF condition: When tank temperature higher than tank set temperature for continuous 15 secs.
  • Page 43 12.1.4 Heat + Tank Mode Operation Setting 1: When Heating priority is set by control panel: 3 ways valve control: 3 ways valve switch to room side during External Room Thermo ON OR Solar 3ways valve ON OR Tank Thermo OFF time, and switch to tank side at External Room Thermo OFF AND Solar 3 ways valve OFF Heat pump operation control:- During External Room Thermo ON time: (When room thermo ON, heat pump must operate to room side)
  • Page 44 Switch back 3 ways valve to room side, Heat pump and water pump turn OFF, IF External Room Thermo ON back OR Under Solar Priority Set condition: Tank temperature > Tank THERMO OFF TEMP. for continuous 3 minutes OR Solar Valve Under Solar Priority Not Set condition: Tank temperature >...
  • Page 45 Solar 3 way valve: Solar 3 way valve operates follow solar operation specification. * Under solar priority is set condition, when solar 3WV turn ON, booster heater will turn OFF and 3 ways valve switch to room side. * Under solar priority is not set condition, solar 3WV will OFF when heat pump operate to tank side. 2 way valve opens.
  • Page 46 Setting 2: When heating priority is not set by control panel: When Solar Priority is set / not set by control panel: 3 ways valve control: 3 ways valve switch to room side during heating heat-up interval, and switch to tank side during tank heat-up interval.
  • Page 47 - Tank interval will end and start heating interval timer, IF When this condition happen at tank side before case 1 thermo-off. 3WV switch to room side compulsory and continue until complete room interval. Tank interval timer finish AND External Room Thermo ON OR Fulfill above Case 1 of thermo off condition.
  • Page 50 12.1.5 Setting Water Outlet Temperature for Heat Mode The set temperature define the parameters for the outdoor ambient temperature dependent operation of the unit. Where by the internal water setting temperature is determined automatically depending on the outdoor temperature. The colder outdoor temperatures will result in warmer water and vice versa. The user has the possibility to shift up or down the target water temperature by control panel setting.

  • Page 51: Water Pump

    12.1.7 Outdoor Fan Motor Operation Outdoor fan motor is adjusted according to operation condition. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation. 12.2 Water Pump 12.2.1 Water Pump Control Once the indoor unit is ON, the water pump will be ON immediately and no error judgement for 9 minutes. However, during this 9 minutes operation, if there is any abnormality cause at outdoor or malfunction, the compressor should be OFF immediately and restart delay after 3 minutes.

  • Page 52: Pump Down Operation

    12.2.2 Water Pump Only Operation Water pump only circulation can be set from the control panel SERVICE S/W when the operation is in Standby Mode. Press the SERVICE S/W for continuous 5sec to enter Service Mode. In Service Mode, select Sr:02 and press SET S/W to start water pump only operation. Water pump will stop operation when H62 is triggered.

  • Page 53: Indoor Unit Safety

    12.6 Indoor Unit Safety 12.6.1 Indoor Unit 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 54: Indoor Back-Up Heater Control

    12.9 Indoor Back-Up Heater Control 12.9.1 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. Outdoor air temperature < Outdoor set temperature for heater e.

  • Page 55: Base Pan Heater Control (Optional)

    Booster heater Turn Off condition: Tank temperature > Tank set temperature + [0°C] for continuous 15 secs When BOOSTER HEATER DELAY TIMER start count after switch from heating heat-up interval to tank heat-up interval * DELAY TIMER can be set by control panel. 12.11 Base Pan Heater Control (Optional) To enable the base pan heater function, pin 3 of SW2 of water system PCB has to be switched from OFF to ON position.

  • Page 56: Sterilization Mode

    12.13 Sterilization Mode Purpose: Boil tank temperature to customer set boiling temperature to operate sterilization. Control start condition: Tank connection set to YES by remote controller Sterilization function selection is YES Sterilization signal received from remote controller by timer. Control stop condition: After boiling timer completed.

  • Page 57: Solar Operation (Optional)

    2. Backup heater anti freeze control: Backup heater turns ON when ALL the below conditions are fulfilled: Water inlet/outlet temp. < 6°C Water pump circulation anti freeze control activated, and water pump ON for 4 minutes Backup heater turns OFF when ANY of the below conditions is fulfilled: Water inlet/outlet temp.
  • Page 58 Stop condition: 3 way valve stops operating when: No power supply to unit OR There is NO operation request from solar pump station OR Tank hot water temp is above solar off upper limit temp 80°C. Heat pump thermo ON and operate to tank side. (during operation ON and tank mode selected).

  • Page 60: External Room Thermostat Control (Optional)

    12.17 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 Siemen (REV200) Touch panel Siemen (RAA20) Analog Connection external room thermostat: Wire Connection and thermo characteristic of Siemen REV200: Setting L/L1 (H) Heat Thermo...

  • Page 61: Protection Control

    13. Protection Control 13.1 Protection Control for All Operations 13.1.1 Time Delay Safety Control The compressor will not start for three minutes after stop of operation. 13.1.2 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 62: Low Pressure Protection Control

    13.1.6 Low Pressure Protection Control Purpose: To protect the system operation. Detection period: After compressor on for 5 minutes. Detection conditions: When detection of Tem above 30°C. Calculation of average evaporation temperature (Tem). Use outdoor low pressure sensor. Tem use the value calculated for discharge temperature setting value After detection: Compressor stops restart again after 3 mins.

  • Page 63: Protection Control For Heating Operation

    13.1.10 Crank Case Heater Control Purpose: - For compressor protection during low outdoor ambient operation (during heating low temperature operation). Control content: a. Trigger heater START condition When the outdoor air temperature is 4°C or below, and discharge temperature is 12°C or below. b.

  • Page 64: Servicing Mode

    14. Servicing Mode 14.1 How to Take Out Front Plate Please follow the steps below for take out front plate. Before removing the front plate of indoor unit, always switch off all power supply (i.e. indoor unit power supply, heater power supply and tank unit power supply). Remove the 2 mounting screws which located at bottom of the front plate and 1 mounting screw at the front of the plate.

  • Page 65: How To Adjust Water Flow Rate

    14.5 How to Adjust Water Flow Rate Before adjust the water flow rate, make sure that the total water volume in the installation is 50 litres minimum. The water flow rate can be adjusted with select the water pump speed on the water pump. The default setting is moderate speed (II).

  • Page 66: Maintenance Guide

    15. Maintenance Guide In order to ensure optimal performance of the unit, checks and inspections on the unit and the field wiring must be carried out regularly. Before carried out any maintenance or repair work, and removing the front plate of heat exchanger unit, always switch off all power supply (i.e.
  • Page 67 Reset overload protector Overload protector serves the safety purpose to prevent the water over heating. When the overload protector trip at high water temperature, take below steps to reset it. a. Take out OLP cover. b. Use a test pen to push the centre button gently in order to reset the Overload protector. c.

  • Page 68: Troubleshooting Guide

    16. Troubleshooting Guide 16.1 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 69: Relationship Between The Condition Of The Air-To-Water Heatpump Indoor And Outdoor Units And Pressure And Electric Current

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

  • Page 70: Breakdown Self Diagnosis Function

    16.3 Breakdown Self Diagnosis Function 16.3.1 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 timer display LCD. Even error code is reset by turning OFF power supply or by pressing ERROR RESET button, if the system abnormality is still un-repaired, system will again stop operation, and OFF/ON control panel LED will again blink.

  • Page 71: Error Codes Table

    16.4 Error Codes Table Diagnosis display Abnormality/Protection control Abnormality judgement Primary location to verify No abnormality detected — — Indoor/Outdoor capacity unmatched continue for 90 sec. Indoor/outdoor connection wire Indoor/outdoor PCB Specification and combination table in catalogue Outdoor compressor temperature sensor Continue for 90 sec.
  • Page 72 Diagnosis display Abnormality/Protection control Abnormality judgement Primary location to verify Outdoor defrost sensor abnormality Continue for 5 sec. Outdoor defrost sensor (defective or disconnected) Indoor water outlet temperature sensor Continue for 5 sec. Water outlet temperature sensor abnormality (defective or disconnected) Outdoor Current Transformer open —...

  • Page 73: Self-Diagnosis Method

    16.5 Self-diagnosis Method 16.5.1 Connection Capability Rank Abnormality (H12) Malfunction Decision Conditions: During startup operation of heating, the capability rank of indoor checked by the outdoor is used to determine connection capability rank abnormality. Malfunction Caused: Wrong model interconnected. Wrong indoor unit or outdoor unit PCB (main) used. Faulty indoor unit or outdoor unit PCB (main).
  • Page 74 16.5.2 Compressor Tank Temperature Sensor Abnormality (H15) Malfunction Decision Conditions: During startup and operation of 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). Abnormality Judgment: Continue for 5 seconds.
  • Page 75 16.5.3 Indoor Refrigerant Liquid Temperature Sensor Abnormality (H23) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the indoor refrigerant liquid temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty indoor unit PCB (main).
  • Page 76 16.5.4 Compressor Low Pressure Protection (H42) Malfunction Decision Conditions: During operation of heating and after 5 minutes compressor ON, when outdoor pipe temperature below -29°C or above 26°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 77 16.5.5 Water Flow Switch Abnormality (H62) Malfunction Decision Conditions: During operation of heating, the water flow detected by the indoor water flow switch is used to determine water flow error. Malfunction Caused: Air trapped in water system. Faulty water pump. Water leak in system.
  • Page 78 16.5.6 Outdoor Low Pressure Abnormality (H63) Malfunction Decision Conditions: During operation of heating, when the outdoor low pressure sensor output signal is 0Vdc or 5Vdc. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 4 times in 20 minutes.
  • Page 79 16.5.7 Outdoor High Pressure Abnormality (H64) Malfunction Decision Conditions: During operation of heating, when the outdoor high pressure sensor output signal is 0Vdc or 5Vdc. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 4 times in 20 minutes.
  • Page 80 16.5.8 Indoor Backup Heater OLP Abnormality (H70) Malfunction Decision Conditions: During operation of indoor backup heater, when no power supplies to indoor backup heater or OLP open circuit. Malfunction Caused: Faulty power supply connector connection. Faulty connector connection. Faulty indoor backup heater overload protector (OLP). Faulty indoor unit PCB (main).
  • Page 81 16.5.9 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). Abnormality Judgment: Continue for 5 seconds.
  • Page 82 16.5.10 Indoor-Control Panel Communication Abnormality (H76) Malfunction Decision Conditions: During standby and operation of heating, indoor-remote control error occur. Malfunction Caused: Faulty connector connection. Faulty remote control. Faulty indoor unit PCB (main).
  • Page 83 16.5.11 Indoor/Outdoor Abnormal Communication (H90) Malfunction Decision Conditions: During operation of 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 indoor unit PCB (main). Indoor-outdoor signal transmission error due to wrong wiring.
  • Page 84 16.5.12 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 85 16.5.13 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).
  • Page 86 16.5.14 Outdoor High Pressure Protection (H98) Malfunction Decision Conditions: During operation of heating, when pressure 4.0 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. 3 way closed.
  • Page 87 16.5.15 Indoor Freeze-up Protection (H99) Malfunction Decision Conditions: During anti-freezing control in cooling operation, when the indoor refrigerant liquid temperature < 0°C. Malfunction Caused: Faulty water pump. Insufficient water flow rate in system. Water leak in system. 2 way valve partially closed. Clogged expansion valve or strainer.
  • Page 88 16.5.16 Outdoor High Pressure Switch Activate (F12) Malfunction Decision Conditions: During operation of heating, when pressure 4.5MPa and above is detected by outdoor high pressure switch. Malfunction Caused: Faulty water pump. Insufficient water flow rate in system. Water leak in system. 3 way valve closed.
  • Page 89 16.5.17 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.
  • Page 90 16.5.18 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 > 2550rpm or < 50rpm). Malfunction Caused: Operation stop due to short circuit inside the fan motor winding.
  • Page 91 16.5.19 Input Over Current Detection (F16) Malfunction Decision Conditions: During operation of heating, when outdoor current above 27.9A is detected by the current transformer (CT) in the outdoor unit PCB. Malfunction Caused: Excessive refrigerant. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 3 times in 20 minutes.
  • Page 92 16.5.20 Compressor Overheating (F20) Malfunction Decision Conditions: During operation of heating, when temperature above 112°C is detected by the compressor tank temperature sensor. Malfunction Caused: Faulty compressor tank temperature sensor. 3 way valve closed. Refrigerant shortage (refrigerant leakage). Clogged expansion valve or strainer. Faulty outdoor unit PCB (main).
  • Page 93 16.5.21 IPM Overheating (F22) Malfunction Decision Conditions: During operation of 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 3 times in 30 minutes.
  • Page 94 16.5.22 Output Over Current Detection (F23) Malfunction Decision Conditions: During operation of heating, when outdoor DC current is above 40.1 ± 5.0A (for: 6kW~9kW) OR 44.7 ± 5.0A (for: 12kW~16kW) is detected by the IPM DC Peak sensing circuitry in the outdoor unit PCB (main). Malfunction Caused: Faulty outdoor unit PCB (main).
  • Page 95 16.5.23 Refrigeration Cycle Abnormality (F24) Malfunction Decision Conditions: During operation of heating, compressor frequency > Frated. During operation of heating, running current: 0.65A < I < 1.65A. During operation of heating, indoor refrigerant liquid temperature - water inlet temperature < 5°C. Malfunction Caused: Faulty water inlet or indoor refrigerant liquid temperature sensors.
  • Page 96 16.5.24 Four Way Valve Abnormality (F25) Malfunction Decision Conditions: During heating operation, when the indoor pipe temperature of thermostat ON indoor unit < 0°C. Malfunction Caused: Faulty sensor. Faulty connector connection. Faulty outdoor unit PCB (noise filter/main). Faulty four way valve. Abnormality Judgment: Continue 4 times in 30 minutes.
  • Page 97 16.5.25 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.
  • Page 98 16.5.26 Outdoor Air Temperature Sensor Abnormality (F36) Malfunction Decision Conditions: During startup and operation of 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). Abnormality Judgment: Continue for 5 seconds.
  • Page 99 16.5.27 Indoor Water Inlet Temperature Sensor Abnormality (F37) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the indoor water inlet temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty indoor unit PCB (main).
  • Page 100 16.5.28 Outdoor Discharge Pipe Temperature Sensor Abnormality (F40) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 101 16.5.29 Power Factor Correction (PFC) Abnormality (F41) Malfunction Decision Conditions: During operation of 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 102 16.5.30 Outdoor Pipe Temperature Sensor Abnormality (F42) Malfunction Decision Conditions: During startup and operation of 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). Abnormality Judgment: Continue for 5 seconds.
  • Page 103 16.5.31 Outdoor Defrost Temperature Sensor Abnormality (F43) Malfunction Decision Conditions: During startup and operation of 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). Abnormality Judgment: Continue for 5 seconds.
  • Page 104 16.5.32 Indoor Water Outlet Temperature Sensor Abnormality (F45) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the indoor water outlet temperature sensor are used to determine sensor errors. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty indoor unit PCB (main).
  • Page 105 16.5.33 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 (< 0.65A) for continuously 20 seconds. Malfunction Caused: CT defective.
  • Page 106 16.5.34 Cooling High Pressure Overload Protection (F95) Malfunction Decision Conditions: During operation of cooling, when pressure 4.0MPa and above is detected by outdoor high pressure sensor. Malfunction Caused: Dust accumulation in the outdoor unit heat exchanger. Air short circuit at outdoor unit. 2 way valve closed.

  • Page 107: Disassembly And Assembly Instructions

    17. 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. 17.1 To Remove Front Plate Please follow the steps below for take out front plate.

  • Page 108: To Remove Pressure Gauge

    17.3 To Remove Pressure Gauge 17.4 To Remove Control Panel...

  • Page 109: To Remove Rccb/Elcb

    17.5 To Remove RCCB/ELCB 17.6 To Remove Transformer and Electronic Controller Board...

  • Page 110: To Remove Air Purge Valve, Pressure Relief Valve, Flow Switch, Water Pump And Bottle Complete

    17.7 To Remove Air Purge Valve, Pressure Relief Valve, Flow Switch, Water Pump and Bottle Complete When reinstall the water pipe, use grease or water at the joining.
  • Page 111 When reinstall the water pipe, use grease or water at the joining. When reinstall the water pipe, use grease or water at the joining.

  • Page 112: Technical Data

    18. Technical Data 18.1 Heating Capacity Table 18.1.1 WH-SHF09D3E8 WH-UH09DE8 Tamb 9000 3500 9000 3750 8900 4050 8800 4300 9000 3100 9000 3330 9000 3600 8900 3870 9000 2470 9000 2650 9000 2950 9000 3250 9000 1860 9000 1980 9000...

  • Page 113: Heating Capacity At Different Piping Length

    18.2 Heating Capacity at Different Piping Length WH-SHF09 WH-SHF12 Pipe Length 9000 1990 12000 2750 9000 1980 12000 2730 8000 1880 10300 2550 7400 1880 9500 2550 7000 1880 9000 2550 HC: Heating Capacity (kW) IP: Power Input (kW) Outdoor air temperature: 7°C (DBT), 6°C (WBT) Indoor water inlet temperature: 30°C Indoor water outlet temperature: 35°C Piping Length: 7m...

  • Page 114: Exploded View And Replacement Parts List

    19. Exploded View and Replacement Parts List 19.1 WH-SHF09D3E8 WH-SHF12D9E8 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 115 < Model: WH-SHF09D3E8 WH-SHF12D9E8> REF. NO. DESCRIPTION & NAME QTY. WH-SHF09D3E8 WH-SHF12D9E8 REMARK BASE PAN CWD521266 ← HOT WATER COIL-COMPLETE CWB90C1035 ← RECEIVER CWB141039 ← FLOAT (FLOW SWITCH) CWB601008 ← TUBE CONNECTOR-COMPLETE CWT29C1043 ← FLARE NUT (5/8) CWT251063 ← FLARE NUT (1/4)(3/8) CWT251064 ←...

  • Page 116: Wh-Uh09De8 Wh-Uh12De8

    19.2 WH-UH09DE8 WH-UH12DE8...
  • Page 118 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 119 < Model: WH-UH09DE8 WH-UH12DE8> REF. NO. DESCRIPTION & NAME QTY. WH-UH09DE8 WH-UH12DE8 REMARK BASE PAN ASS’Y CWD52K1275 ← COMPRESSOR 4JD650XBA22 ← BUSHING - COMPRESSOR MOUNT CWH50055 ← NUT-COMPRESSOR MOUNT CWH561049 ← GASKET FOR TERMINAL COVER CWB811017 ← CRANKCASE HEATER CWA341053 ←...
  • Page 120 REF. NO. DESCRIPTION & NAME QTY. WH-UH09DE8 WH-UH12DE8 REMARK ACCESSORY CO. (DRAIN ELBOW) CWG87C2030 ← ELECTRO MAGNETIC SWITCH K6C2AGA00002 ← ELECTRO MAGNETIC SWITCH K6C4E8A00001 ← REACTOR G0C153J00009 ← PTC THERMISTORS D4DDG1010001 ← CAPACITOR-FM (3.5MF/440V) DS441205NPQA ← Note: All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). “O”...

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