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Panasonic WH-SXC09D3E5 Service Manual
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Panasonic WH-SXC09D3E5 Service Manual

Air-to-water heatpump
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Air-to-Water Heatpump
Indoor Unit
WH-SXC09D3E5
WH-SXC12D6E5
©
Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011.
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM1104117C2
Outdoor Unit
WH-UX09DE5
WH-UX12DE5

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Summary of Contents for Panasonic WH-SXC09D3E5

  • Page 1 Order No. PHAAM1104117C2 Air-to-Water Heatpump Indoor Unit Outdoor Unit WH-SXC09D3E5 WH-UX09DE5 WH-SXC12D6E5 WH-UX12DE5 © Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    1 Safety Precautions -----------------------------------------------3 16.2. Relationship Between The Condition Of The 2 Specifications ------------------------------------------------------5 Air-to-Water Heatpump Indoor And Outdoor 2.1. WH-SXC09D3E5 WH-UX09DE5 ----------------------5 Units And Pressure And Electric Current ---------- 71 2.2. WH-SXC12D6E5 WH-UX12DE5 ----------------------7 16.3. Breakdown Self Diagnosis Function ---------------- 72 3 Features --------------------------------------------------------------9 16.4.

  • 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. •...
  • Page 4 19. The unit is only for use in a closed portable water system. Utilization in an open water circuit or non-portable water circuit, may lead to excessive corrosion of the water piping and risk of incubating bacteria colonies, particularly Legionella, in water. 20.

  • Page 5: Specifications

    2 Specifications 2.1. WH-SXC09D3E5 WH-UX09DE5 Item Unit Outdoor Unit Performance Test Condition EUROVENT Cooling Capacity 7.00 BTU/h 23900 kcal/h 6020 3.11 kcal/hW 2.68 Heating Capacity 9.00 BTU/h 30700 kcal/h 7740 4.74 kcal/hW 4.07 Noise Level dB (A) Cooling: 49 Heating: 49...
  • Page 6 Item Unit Input Power Cooling: 2.25 Heating: 1.90 Maximum Input Power For Heat Pump System 5.41 Starting Current 10.4 Running Current Cooling: 10.4 Heating: 8.8 Maximum Current For Heat Pump System 25.0 Power Factor Cooling: 94 Heating: 94 Power factor means total figure of compressor and outdoor fan motor. Power Cord Number of core Length...

  • Page 7: Wh-Sxc12D6E5 Wh-Ux12De5

    2.2. WH-SXC12D6E5 WH-UX12DE5 Item Unit Outdoor Unit Performance Test Condition EUROVENT Cooling Capacity 10.00 BTU/h 34100 kcal/h 8600 2.78 kcal/hW 2.39 Heating Capacity 12.00 BTU/h 41000 kcal/h 10320 4.67 kcal/hW 4.02 Noise Level dB (A) Cooling: 50 Heating: 50 Power Level dB Cooling: 68 Heating: 67 Air Flow...
  • Page 8 Item Unit Input Power Cooling: 3.60 Heating: 2.57 Maximum Input Power For Heat Pump System 6.27 Starting Current 16.7 Running Current Cooling: 16.7 Heating: 11.9 Maximum Current For Heat Pump System 29.0 Power Factor Cooling: 94 Heating: 94 Power factor means total figure of compressor and outdoor fan motor. Power Cord Number of core Length...

  • Page 9: Features

    3 Features • Inverter Technology - Energy saving • High Efficiency • Compact Design • Environment Protection - Non-ozone depletion substances refrigerant (R410A) • Long Installation Piping - Long piping up to 30 meter with height difference 20 meter - Flexible 4-way piping for outdoor unit •...

  • Page 10: Location Of Controls And Components

    4 Location of Controls and Components 4.1. 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 4.2. Outdoor Unit...

  • Page 16: Dimensions

    5 Dimensions 5.1. Indoor Unit...

  • Page 17: Outdoor Unit

    5.2. Outdoor Unit...

  • Page 18: Refrigeration And Water Cycle Diagram

    6 Refrigeration And Water Cycle Diagram Piping size Min. Max. Rated Common Additional Piping Piping Length Length Elevation Refrigerant Length Length Model Liquid (g/m) UX09DE5 5/8” 3/8” UX12DE5 5/8” 3/8” * If piping length is over common length, additional refrigerant should be added as shown in the table.

  • Page 20: Block Diagram

    7 Block Diagram 7.1. WH-UX09DE5...

  • Page 21: Wh-Ux12De5

    7.2. WH-UX12DE5...

  • Page 22: Wiring Connection Diagram

    8 Wiring Connection Diagram 8.1. Indoor Unit 8.1.1. WH-SXC09D3E5...
  • Page 23 8.1.2. WH-SXC12D6E5...

  • Page 24: Outdoor Unit

    8.2. Outdoor Unit...

  • Page 25: Electronic Circuit Diagram

    9 Electronic Circuit Diagram 9.1. Indoor Unit 9.1.1. WH-SXC09D3E5...
  • Page 26 9.1.2. WH-SXC12D6E5...

  • Page 27: Outdoor Unit

    9.2. Outdoor Unit...

  • Page 28: Printed Circuit Board

    10 Printed Circuit Board 10.1. Indoor Unit 10.1.1. Main Printed Circuit Board...
  • Page 29 10.1.2. Solar Printed Circuit Board (Optional)

  • Page 30: Outdoor Unit

    10.2. Outdoor Unit 10.2.1. Main Printed Circuit Board...
  • Page 31 10.2.2. Capacitor Printed Circuit Board 10.2.3. Noise Filter Printed Circuit Board...

  • Page 32: Installation Instruction

    11 Installation Instruction 11.1. Select The Best Location Piping size Addi- Min. Max. INDOOR UNIT Rated tional Eleva- Piping Piping • There should not be any heat source or steam near the unit. Model Length Refrige- tion Length Length Liquid •...

  • Page 33: Indoor Unit

    11.3. Indoor Unit 11.3.3. INDOOR UNIT INSTALLATION 11.3.3.1. Install The Indoor Unit 11.3.1. HOW TO FIX INSTALLATION PLATE 1. When connecting solar pump station cable between The mounting wall is strong and solid enough to prevent it from indoor unit and solar pump station, the distance between vibration.
  • Page 34 11.3.3.3. Indoor Unit Refrigerant Pipe • Refer to Diagram 4.1 for pipe connection of Panel Heater, Floor Heater, Tank Unit, Solar Pump Station, 3-way Valve Installation Kit, 2-way Valve Kit and etc. Fail to connect the pipes 1. Please make flare after inserting flare nut (located at joint appropriately might cause the unit malfunction.

  • Page 35: Connect The Cable To The Indoor Unit

    11.3.3.5. Drain Elbow and Hose Installation • The water may drip from drain hose. Therefore must ensure • Fix the drain elbow and packing to the bottom of indoor the outlet of the hose is always not closed or blocked. unit, as show in below illustration.
  • Page 36 11. Must install Solar Connection PCB (optional) to indoor unit when Solar Pump Station is utilized. Refer Solar Connection PCB’s installation instruction for detail of installation. 12. Solar Pump Station’s cable shall be (2 min 0.5 mm ), of double insulation PVC-sheathed or rubber-sheathed cable. Strongly recommended install with maximum length of 10 meter only.
  • Page 37 804.90kW (for WH-SXC09D3E5/UX09DE5 and WH-SXC12D6E5/UX12DE5) at the interface point between the user’s supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the...

  • Page 38: 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. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). 2. When installing at roof, please consider strong wind and earthquake.

  • Page 39: 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. 1. 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 40: Pipe Insulation

    6. Install back the control board cover. 11.4.4.1. Wire Stripping and Connecting Requirement • Same as indoor requirement. For details please refer the diagram on AIR-TO-WATER HEATPUMP INDOOR UNIT, section 11.3.4. (CONNECT THE CABLE TO THE INDOOR UNIT) 11.4.5. PIPE INSULATION 1.

  • Page 41: 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 42 12.1.4. Cool Mode Operation 1. 3 ways valve control: • 3 ways valve switch and fix to room side. 2. Heat pump operate follow normal cooling operation. 3. Backup heater DOES NOT operate during cool mode. 4. Solar 3 way valve operates follow solar operation specification. 5.
  • Page 43 12.1.5. Cool + Tank Mode Operation 12.1.6. Tank Mode Operation Control contents: • 3 ways valve direction - 3 ways valve switch and fix to tank side. • Heat Pump Thermostat characteristic - Water set temperature = tank set temperature or [55 C] whichever lower. - Heat Pump Water Outlet set temperature is set to Maximum (53 C) at tank mode i.
  • Page 44 ii. Case 2 - Heat pump THERMO OFF TEMP: 1. Heat pump THERMO OFF TEMP = 53 C + [+4 C]. 2. Water outlet temperature > Heat pump THERMO OFF TEMP for continuous 3 minutes, heat pump OFF and water pump OFF.
  • Page 45 Solar Priority is Set Solar Priority is Not Set...
  • Page 46 12.1.7. Heat + Tank Mode Operation Setting 1:- When Heating priority is set by control panel: 1. 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 2.
  • Page 47 Case 4 (Only during solar priority is set condition): • When solar request ON, solar valve will ON and switch 3 ways valve to room side • THERMO ON TEMP: 1. THERMO ON TEMP = Heat pump tank target temperature + [-3 C]. 2.
  • Page 48 Under Solar Priority Not Set Condition: Setting 2:- When heating priority is not set by control panel: • When Solar Priority is set / not set by control panel: 1. 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 mode will switch alternatively.
  • Page 49 Case 1: • THERMO OFF TEMP: 1. THERMO OFF TEMP = Heat pump tank target temperature + [+2 C]. 2. Tank temperature > THERMO OFF TEMP for continuous 3 minutes, switch 3 ways valve to room side. End Tank heat-up interval and start count heating heat-up interval. •...
  • Page 50 5. Solar 3 way valve • Solar 3WV operates follow solar operation specification. * Under solar priority is set condition, when solar 3WV is ON, booster heater turn OFF * Under solar priority is not set condition, solar 3WV only can ON during heating heat-up interval. 6.
  • Page 51 Heat + Tank Mode (Heating priority not set) Under Solar Priority Not Set Condition:...
  • Page 52 12.1.8. 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.
  • Page 53 12.1.9. Water Temperature Thermo Shift Setting • Switchs are ignored during “PUMPDW” = ON. • Switchs are ignored during “STATUS” = ON. • “ ”, “ ”, “SELECT” switch are ignored if “SETTING” = OFF. • “CANCEL” switch is ignored if “SETTING” = OFF & “STATUS” = OFF. •...

  • Page 54: Water Pump

    12.2. Water Pump 12.2.1. Water Pump Control 1. 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 55: Force Heater Mode Operation

    12.5. Force Heater Mode Operation The backup heater also serves as backup in case of malfunctioning of the outdoor unit. 1. Make sure the OFF/ON control panel LED is OFF (no operation). 2. Press the Force button to start the force heater mode operation. 3.

  • Page 56: Indication Panel

    12.8. Indication Panel Operation Color Green Light ON Operation ON Light OFF Operation OFF Note: • If Operation LED is blinking, there is an abnormality operation occurs. 12.9. Indoor Back-Up Heater Control 12.9.1. Indoor Electric Heater control 1. Normal Heating Mode •...

  • Page 57: Tank Booster Heater Control

    12.10. Tank Booster Heater Control 12.10.1. Tank booster heater control Heating operation condition: 1. Booster heater Turn On condition: • After BOOSTER HEATER DELAY TIMER fulfil during heat pump startup time in tank mode, or during switching from heating heat-up interval to tank heat-up interval in heat+tank mode (heating priority not set). •...

  • Page 58: Quiet Operation

    12.13. Quiet Operation • Purpose: - To provide quiet operation compare to normal operation by reduces outdoor unit noise. • Starting condition: 1. When quiet button is presses. 2. When quiet request ON time by weekly timer (Refer to control panel.) •...
  • Page 59 When solar priority is NOT SET 1. Operation condition: • Solar pump operates if all of the following conditions are fulfilled:- i) Power On. (regardless operation ON or OFF) ii) There is operation request from Solar pump station. iii) Tank hot water temp is below solar on upper limit temp [EEPROM 1 : 70] C. iv) Heat pump thermo OFF in tank mode OR Heat pump operate to room side.
  • Page 60 (Solar Priority Not Set) Heat + Tank Mode (Heating Priority Set)
  • Page 61 Tank Mode (Solar Priority Set) (Solar Priority Not Set)

  • Page 62: External Room Thermostat Control (Optional)

    12.15. External Room Thermostat Control (Optional) Purpose: • Better room temperature control to fulfil different temperature request by external room thermostat. Recommended external room thermostat: Maker Characteristic Siemem (REV200) Touch panel Siemem (RAA200) Analog Connection external room thermostat: Wire Connection and thermo characteristic of Siemen REV200: Setting L / L1 (H) Heat Thermo...

  • Page 63: Two Ways Valve Control

    12.16. Two ways valve control Functionality of 2 ways valve: • Use to allow hot water to floor heating panel or block cold water to floor heating panel. Control contents: 1. When indoor running in heat mode, OPEN the 2 ways valve. 2.

  • Page 64: Protection Control

    13 Protection Control 13.1. Protection Control For All Operations 13.1.1. Time Delay Safety Control 1. The compressor will not start for three minutes after stop of operation. 13.1.2. 30 Seconds Forced Operation 1. Once the compressor starts operation, it will not stop its operation for 30 seconds. 2.

  • Page 65: 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 26 C. - Calculation of average evaporation temperature (Tem). - Use outdoor piping temperature sensor.

  • Page 66: 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 conditon • when the outdoor air temperature is 13 C or below, and discharge temperature is 13.2 C or below. b.

  • Page 67: Servicing Mode

    14 Servicing Mode 14.1. Test Run 1. Fill up the boiler tank with water. For details refer to boiler tanks installation instruction and operation instruction. 2. Set ON to the indoor unit and RCCB/ELCB. Then, for control panel’s operation please refers to air-to-water heatpump’s operation instruction.

  • Page 68: 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. Please request a licensed technician for carry out maintenance job. 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 69 6. 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 70: 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. The normal pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table on the right.

  • Page 71: 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 Cooling Mode Condition of the Air-to-Water Heatpump Low Pressure High Pressure Electric current Low Pressure High Pressure Electric current indoor and during operation during operation outdoor units...

  • Page 72: 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. •...

  • Page 73: 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 90s after power supply • Indoor/outdoor connection wire • Indoor/outdoor PCB • Specification and combination table in catalogue Outdoor compressor temperature sensor Continue for 5 sec.
  • Page 74 Diagnosis display Abnormality / Protection control Abnormality Judgement Primary location to verify PFC control 4 times occurrence within 10 • Voltage at PFC minutes Outdoor heat exchanger temperature Continue for 5 sec. • Outdoor heat exchanger temperature sensor abnormality sensor (defective or disconnected) Outdoor defrost sensor abnormality Continue for 5 sec.

  • Page 75: Self-Diagnosis Method

    16.5. Self-diagnosis Method 16.5.1. Connection Capability Rank Abnormality (H12) Malfunction Decision Conditions: During startup operation of cooling and heating, the capability rank of indoor checked by the outdoor is used to determine connection capability rank abnormality. Malfunction Caused: 1. Wrong model interconnected. 2.
  • Page 76 16.5.2. 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: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 77 16.5.3. Indoor Refrigerant Liquid Temperature Sensor Abnormality (H23) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the indoor refrigerant liquid temperature sensor are used to determine sensor error. Malfunction Caused: 1. Faulty connector connection. 2.

  • Page 78: Compressor Low Pressure Protection (H)

    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: 1.
  • Page 79 16.5.5. Water Flow Switch Abnormality (H62) Malfunction Decision Conditions: During operation of cooling and heating, the water flow detected by the indoor water flow switch is used to determine water flow error. Malfunction Caused: 1. Faulty water pump. 2. Water leak in system. 3.
  • Page 80 16.5.6. Outdoor High Pressure Abnormality (H64) Malfunction Decision Conditions: During operation of cooling and heating, when the outdoor high pressure sensor output signal is 0Vdc or 5Vdc. Malfunction Caused: 1. Faulty connector connection. 2. Faulty sensor. 3. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 4 times in 20 minutes.
  • Page 81 16.5.7. 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: 1. Faulty power supply connector connection. 2. Faulty connector connection. 3.
  • Page 82 16.5.8. 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: 1. Faulty connector connection. 2. Faulty sensor. 3. Faulty indoor unit PCB (main). Abnormality Judgment: Continue for 5 seconds.
  • Page 83 16.5.9. Indoor-Control Panel Communication Abnormality (H76) Malfunction Decision Conditions: During standby and operation of cooling and heating, indoor-control panel error occur. Malfunction Caused: 1. Faulty connector connection. 2. Faulty control panel. 3. Faulty indoor unit PCB (main).
  • Page 84 16.5.10. 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: 1. Faulty outdoor unit PCB (main). 2. Faulty indoor unit PCB (main). 3.
  • Page 85 16.5.11. Tank Booster Heater OLP Abnormality (H91) Malfunction Decision Conditions: During operation of tank booster heater, and tank booster heater OLP open circuit. Malfunction Caused: 1. Faulty connector connection. 2. Faulty tank booster heater overload protector (OLP). 3. Faulty indoor unit PCB (main). Abnormality Judgment: Continue for 60 seconds.
  • Page 86 16.5.12. 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: 1. Insufficient power supply. 2. Faulty outdoor unit PCB (noise filter/main).
  • Page 87 16.5.13. Outdoor High Pressure Protection (H98) Malfunction Decision Conditions: During operation of heating, when pressure 4.0MPa and above is detected by outdoor high pressure sensor. Malfunction Caused: 1. Faulty water pump. 2. Insufficient water flow rate in system. 3. Water leak in system. 4.
  • Page 88 16.5.14. 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: 1. Faulty water pump. 2. Insufficient water flow rate in system. 3. Water leak in system. 4.
  • Page 89 16.5.15. Outdoor High Pressure Switch Activate (F12) Malfunction Decision Conditions: During operation of cooling and heating, when pressure 4.5MPa and above is detected by outdoor high pressure switch. Malfunction Caused: 1. Dust accumulation on the outdoor unit heat exchanger. 2. Air short circuit at outdoor unit. 3.
  • Page 90 16.5.16. 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: 1. Compressor terminal disconnect. 2. Faulty outdoor unit PCB (main). 3. Faulty compressor. Abnormality Judgment: Continue 4 times in 20 minutes.
  • Page 91 16.5.17. 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: 1.
  • Page 92 16.5.18. Input Over Current Detection (F16) Malfunction Decision Conditions: During operation of cooling and heating, when outdoor current above 27.9A is detected by the current transformer (CT) in the outdoor unit PCB. Malfunction Caused: 1. Excessive refrigerant. 2. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 3 times in 20 minutes.
  • Page 93 16.5.19. 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: 1. Faulty compressor tank temperature sensor. 2. 2/3 way valve closed. 3. Refrigerant shortage (refrigerant leakage). 4.
  • Page 94 16.5.20. 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: 1. Faulty outdoor unit fan motor. 2. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 3 times in 30 minutes.
  • Page 95 16.5.21. Output Over Current Detection (F23) Malfunction Decision Conditions: During operation of cooling and heating, when outdoor DC current is above 40.1 ± 5.0A (for: UD07~09CE) OR 44.7 ± 5.0A (for: UD12~16CE) is detected by the IPM DC Peak sensing circuitry in the outdoor unit PCB (main). Malfunction Caused: 1.
  • Page 96 16.5.22. Refrigeration Cycle Abnormality (F24) Malfunction Decision Conditions: 1. During operation of cooling and heating, compressor frequency > Frated. 2. During operation of cooling and heating, running current: 0.65A < I < 1.65A. 3. During operation of cooling, water inlet temperature - indoor refrigerant liquid temperature < 5 C. 4.
  • Page 97 16.5.23. Four Way Valve Abnormality (F25) Malfunction Decision Conditions: 1. During heating operation, when the indoor pipe temperature of thermostat ON indoor unit < 0 C. 2. During cooling operation, when the indoor pipe temperature of thermostat ON indoor unit > 45 C. Malfunction Caused: 1.
  • Page 98 16.5.24. Outdoor High Pressure Switch Abnormal (F27) Malfunction Decision Conditions: During compressor stop, and outdoor high pressure switch is remain opened. Malfunction Caused: 1. Faulty connector connection. 2. Faulty switch. 3. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue for 1 minute.
  • Page 99 16.5.25. 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: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 100 16.5.26. 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: 1. Faulty connector connection. 2.
  • Page 101 16.5.27. 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: 1. Faulty connector connection. 2.
  • Page 102 16.5.28. 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: 1. Power supply surge. 2. Compressor windings not uniform. 3.
  • Page 103 16.5.29. 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: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 104 16.5.30. 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: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 105 16.5.31. 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: 1. Faulty connector connection. 2.
  • Page 106 16.5.32. 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: 1.
  • Page 107 16.5.33. 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: 1. Dust accumulation in the outdoor unit heat exchanger. 2. Air short circuit at outdoor unit. 3.

  • Page 108: 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.

  • Page 109: To Remove Pressure Gauge

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

  • Page 110: To Remove Rccb/Elcb

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

  • Page 111: To Remove Pressure Relief Valve, Flow Switch, Water Pump And Bottle Complete

    17.7. To Remove Pressure Relief Valve, Flow Switch, Water Pump and Bottle Complete When reinstall the water pipe, use grease or water at the joining.
  • Page 112 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 113: Technical Data

    18 Technical Data 18.1. Operation Characteristics 18.1.1. WH-SXC09D3E5 WH-UX09DE5 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...
  • Page 114 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 Piping length : 7m...
  • Page 115 Heating Characteristics at Different Piping Length Condition 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 116 Cooling Characteristics at Different Piping Length Condition Outdoor air temperature : 35 C (DBT), - C (WBT) Indoor water inlet temperature : 12 C Indoor water outlet temperature : 7 C Piping length : 7m...
  • Page 117 18.1.2. WH-SXC12D6E5 WH-UX12DE5 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 Piping length : 7m...
  • Page 118 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 Piping length : 7m...
  • Page 119 Heating Characteristics at Different Piping Length Condition 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 120 Cooling Characteristics at Different Piping Length Condition Outdoor air temperature : 35 C (DBT), - C (WBT) Indoor water inlet temperature : 12 C Indoor water outlet temperature : 7 C Piping length : 7m...

  • Page 121: Heating Capacity Table

    18.2. Heating Capacity Table 18.2.1. WH-SXC09D3E5 WH-UX09DE5 Tamb 9.00 3.28 9.00 3.55 9.00 3.95 9.00 4.34 9.00 4.77 9.00 5.20 9.00 2.75 9.00 3.20 9.00 3.66 9.00 4.11 9.00 4.31 9.00 4.50 9.00 2.40 9.00 2.55 9.00 2.82 9.00 3.09 9.00...

  • Page 122: Exploded View And Replacement Parts List

    19 Exploded View and Replacement Parts List 19.1. WH-SXC09D3E5 WH-SXC12D6E5 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 123 <Model: WH-SXC09D3E5 WH-SXC12D6E5> REF. NO. DESCRIPTION & NAME QTY. WH-SXC09D3E5 WH-SXC12D6E5 REMARKS BASE PAN CWD521279 HOT WATER COIL-COMPLETE CWB90C1051 RECEIVER CWB141039 FLOAT (FLOW SWITCH) CWB601008 FLARE NUT (3/8) CWT251061 FLARE NUT (5/8) CWT251064 PUMP CWB532096 PACKING (O-RING) I.D 32mm CWB811082 PACKING (O-RING) I.D 13.8mm...

  • Page 124: Wh-Ux09De5 Wh-Ux12De5

    19.2. WH-UX09DE5 WH-UX12DE5...
  • Page 126 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 127 <Model: WH-UX09DE5 WH-UX12DE5> REF. NO. DESCRIPTION & NAME QTY. WH-UX09DE5 WH-UX12DE5 REMARKS BASE PAN ASS’Y CWD52K1275 COMPRESSOR 5JD420XAA22 ANTI-VIBRATION BUSHING CWH50055 NUT FOR COMP. MOUNT. CWH561049 PACKING CWB811017 CRANKCASE HEATER CWA341053 CONDENSER COMPLETE CWB32C2983 HIGH PRESSURE SENSOR CWA50C2570 DISCHARGE MUFFLER CWB121014 PRESSURE SWITCH CWA101013...
  • Page 128 REF. NO. DESCRIPTION & NAME QTY. WH-UX09DE5 WH-UX12DE5 REMARKS V-COIL COMPLETE - EXP. VALVE (BYPASS) CWA43C2335 SENSOR-OD TEMP./COIL (BYPASS) CWA50C2797 EXPANSION VALVE CWB051029 ACCESSORY CO. (DRAIN ELBOW) CWG87C2030 (Note) • All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488). •...

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