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Panasonic WH-SDF09C3E8 Service Manual
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Panasonic WH-SDF09C3E8 Service Manual

Air to water heat pump
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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-SDF09C3E8
WH-SDF12C9E8
WH-SDF14C9E8
WH-SDF16C9E8
WARNING
PRECAUTION OF LOW TEMPERATURE
Indoor Unit
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM1009094C2
Outdoor Unit
WH-UD09CE8
WH-UD12CE8
WH-UD14CE8
WH-UD16CE8

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Summary of Contents for Panasonic WH-SDF09C3E8

  • 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 HA Air-Conditioning (M) Sdn. Bhd. 2010. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    13. Protection Control ........... 61 2. Specifications .............5 13.1 Protection Control for All Operations ..61 13.2 Protection Control for Heating Operation..62 WH-SDF09C3E8 WH-UD09CE8 ....5 WH-SDF12C9E8 WH-UD12CE8 ....7 14. Servicing Mode ..........63 WH-SDF14C9E8 WH-UD14CE8 ....9 14.1 Test Run ............. 63 WH-SDF16C9E8 WH-UD16CE8 ....11...

  • 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 - Power 2: Use approved 15/16A 2-poles circuit breaker with a minimum contact gap of 3.0mm. - Power 3: Use approved 15/16A 4-poles circuit breaker with a minimum contact gap of 3.0mm. (Not applicable for WH-SDF09C3E8) 8. Do not release refrigerant during piping work for installation, servicing, re-installation and during repairing a refrigeration parts. Take care of the liquid refrigerant, it may cause frostbite.

  • Page 5: Specifications

    2. Specifications WH-SDF09C3E8 WH-UD09CE8 Item Unit Outdoor Unit Performance Test Condition EUROVENT Heating Capacity 9.00 BTU/h 30700 kcal/h 7740 4.74 kcal/hW 4.07 Noise Level dB (A) Power Level dB Air Flow /min (ft /min) 76.8 (2710) Refrigeration Control Device Expansion Valve...
  • Page 6 Item Unit Tank Heater [1 Phase, 230V]: Max. Current / Max. A / kW 13.0 / 3.00 Input Power Power Factor Power factor means total figure of compressor and outdoor fan motor. Power Cord Number of core Length m (ft) Thermostat Electronic Control Protection Device...

  • Page 7: Wh-Sdf12C9E8 Wh-Ud12Ce8

    WH-SDF12C9E8 WH-UD12CE8 Item Unit Outdoor Unit Performance Test Condition EUROVENT Heating Capacity 12.00 BTU/h 41000 kcal/h 10320 4.67 kcal/hW 4.02 Noise Level dB (A) Power Level dB Air Flow /min (ft /min) 80.0 (2830) Refrigeration Control Device Expansion Valve Refrigeration Oil FV50S (1200) Refrigerant (R410A) kg (oz)
  • Page 8 Item Unit Tank Heater [1 Phase, 230V]: Max. Current / Max. A / kW 13.0 / 3.00 Input Power Power Factor Power factor means total figure of compressor and outdoor fan motor. Power Cord Number of core Length m (ft) Thermostat Electronic Control Protection Device...

  • Page 9: Wh-Sdf14C9E8 Wh-Ud14Ce8

    WH-SDF14C9E8 WH-UD14CE8 Item Unit Outdoor Unit Performance Test Condition EUROVENT Heating Capacity 14.00 BTU/h 47800 kcal/h 12040 4.50 kcal/hW 3.87 Noise Level dB (A) Power Level dB Air Flow /min (ft /min) 84.0 (2970) Refrigeration Control Device Expansion Valve Refrigeration Oil FV50S (1200) Refrigerant (R410A) kg (oz)
  • Page 10 Item Unit Tank Heater [1 Phase, 230V]: Max. Current / Max. A / kW 13.0 / 3.00 Input Power Power Factor Power factor means total figure of compressor and outdoor fan motor. Power Cord Number of core Length m (ft) Thermostat Electronic Control Protection Device...

  • Page 11: Wh-Sdf16C9E8 Wh-Ud16Ce8

    WH-SDF16C9E8 WH-UD16CE8 Item Unit Outdoor Unit Performance Test Condition EUROVENT Heating Capacity 16.00 BTU/h 54600 kcal/h 13760 4.23 kcal/hW 3.64 Noise Level dB (A) Power Level dB Air Flow /min (ft /min) 90.0 (3180) Refrigeration Control Device Expansion Valve Refrigeration Oil FV50S (1200) Refrigerant (R410A) kg (oz)
  • Page 12 Item Unit Tank Heater [1 Phase, 230V]: Max. Current / Max. A / kW 13.0 / 3.00 Input Power Power Factor Power factor means total figure of compressor and outdoor fan motor. Power Cord Number of core Length m (ft) Thermostat Electronic Control Protection Device...

  • Page 13: 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 40 meter with height difference 30 meter - Flexible 4-way piping for outdoor unit ...

  • Page 14: Location Of Controls And Components

    4. Location of Controls and Components Indoor Unit 4.1.1 Location of Control...
  • Page 17 4.1.2 Weekly Timer Setting...
  • Page 18 4.1.3 Setting Up the Special Functions...

  • Page 19: Outdoor Unit

    4.1.4 Main Components Outdoor Unit...

  • Page 20: Dimensions

    5. Dimensions Indoor Unit...

  • Page 21: Outdoor Unit

    Outdoor Unit...

  • Page 22: Refrigeration And Water Cycle Diagram

    6. Refrigeration and Water Cycle Diagram Piping size Min. Max. Rated Common Additional Piping Piping Model Length Length Elevation Refrigerant Length Length Liquid (g/m) UD09CE8 5/8” 3/8” UD12CE8 5/8” 3/8” UD14CE8 5/8” 3/8” UD16CE8 5/8” 3/8” * If piping length is over common length, additional refrigerant should be added as shown in the table.

  • Page 24: Block Diagram

    7. Block Diagram WH-UD09CE8...

  • Page 25: Wh-Ud12Ce8 Wh-Ud14Ce8 Wh-Ud16Ce8

    WH-UD12CE8 WH-UD14CE8 WH-UD16CE8...

  • Page 26: Wiring Connection Diagram

    8. Wiring Connection Diagram Indoor Unit 8.1.1 WH-SDF09C3E8...
  • Page 27 8.1.2 WH-SDF12C9E8 WH-SDF14C9E8 WH-SDF16C9E8...

  • Page 28: Outdoor Unit

    Outdoor Unit...

  • Page 29: Electronic Circuit Diagram

    9. Electronic Circuit Diagram Indoor Unit 9.1.1 WH-SDF09C3E8...
  • Page 30 9.1.2 WH-SDF12C9E8 WH-SDF14C9E8 WH-SDF16C9E8...

  • Page 31: Outdoor Unit

    Outdoor Unit...

  • Page 32: Printed Circuit Board

    10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board...
  • Page 33 10.1.2 Solar Printed Circuit Board (Optional)

  • Page 34: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board...
  • Page 35 10.2.2 Noise Filter Printed Circuit Board...

  • Page 36: Installation Instruction

    11. Installation Instruction 11.1 Select the Best Location Rated Min. Max. Addi- Piping size Indoor Unit Length Eleva- Piping Piping tional  tion Length Length Refrige- There should not be any heat source or steam Model rant Gas Liquid near the unit. (g/m) ...

  • Page 37: Indoor Unit

    11.3 Indoor Unit 11.3.3 Indoor Unit Installation 11.3.1 How to Fix Installation Plate 11.3.3.1 Install the Indoor Unit The mounting wall is strong and solid enough to prevent When connecting solar pump station cable it from vibration. 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 38  11.3.3.3 Indoor Unit Refrigerant Pipe If old heatpump terminal/tank is utilized, please clean the dust properly before installation. Installation  Refer Diagram 4.1 for installation of 3-way Valve Kit. Please make flare after inserting flare nut  Must install an external filter (30 mesh or more, field (located at joint portion of tube assembly) onto supply) before water inlet connector of indoor unit the copper pipe.

  • Page 39: Connect The Cable To The Indoor Unit

    11.3.4 Connect the Cable to the Indoor Unit Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 6 x min 1.5mm flexible cord, type designation 60245 IEC 57 or heavier cord. Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor unit’s respectively.
  • Page 40 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 41 11.3.4.2 Connecting Requirement For SDF09C3E8/UD09CE8  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 SDF12C9E8/UD12CE8, SDF14C9E8/UD14CE8, SDF16C9E8/UD16CE8  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.

  • Page 42: 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 43 Cutting and Flaring the Piping Please cut using pipe cutter and then remove the burrs. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. Please make flare after inserting the flare nut onto the copper pipes.

  • Page 44: Connect The Cable To The Outdoor Unit

    11.4.4 Connect the Cable to the Outdoor Unit (FOR DETAIL REFER TO WIRING DIAGRAM AT UNIT) Remove the control board cover from the unit by loosening the screw. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed (6 x min 1.5mm ) flexible cord, type designation 60245 IEC 57 or heavier cord.

  • Page 45: Pipe Insulation

    11.4.5 Pipe Insulation Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 6 mm or above.

  • Page 46: 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 47 ii. Case 2 - Heatpump THERMO OFF TEMP: Heatpump THERMO OFF TEMP = 55°C + [+2°C]. Water outlet temperature > Heatpump THERMO OFF TEMP for continuous 3 minutes, heatpump OFF but water pump ON. - Heatpump THERMO ON TEMP: Heatpump THERMO ON TEMP = Water inlet during thermo off time + [-3°C]. Heatpump ON back when water outlet temperature <...
  • Page 48 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 and fix to room side. Heatpump operation control: Heatpump operate follow normal operation. Backup Heater control: Backup heater operate follow normal operation.
  • Page 49 i. Case 1 - THERMO OFF TEMP: THERMO OFF TEMP = Heatpump tank target temperature + [+2°C]. 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. - THERMO ON TEMP: THERMO ON TEMP = Heatpump tank target temperature + [-3°C].
  • Page 50 * Under solar priority is not set condition, solar 3WV only can ON during heating heat-up interval.
  • Page 51 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 52  If “SET” Switch pressed for less than 5secs, immediately enter water temperature shift setting mode.  Once enter this setting mode, “SETTING” display is ON. This setting mode is used to easily shift the target water outlet temperature. 12.1.7 Outdoor Fan Motor Operation Outdoor fan motor is adjusted according to operation condition.

  • Page 53: Water Pump

    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 54: 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. Make sure the OFF/ON control panel LED is OFF (no operation). Press the Force button to start the force heater mode operation. During force heater mode, all other operations are not allowed.

  • Page 55: 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 Normal Heating Mode Heater On condition: a.

  • Page 56: Tank Booster Heater Control

    12.10 Tank Booster Heater Control 12.10.1 Tank Booster Heater Control Heating operation condition: Booster heater Turn On condition: After BOOSTER HEATER DELAY TIMER fulfil during heatpump 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 57: Solar Operation (Optional)

    12.14 Solar Operation (Optional) 12.14.1 Solar Operation Control according to preset whether solar priority is set or not. When tank connection is NOT set at SETTING mode, solar operation is disabled. When Pump A (from solar pump station) is detected On through connection Y3 and Y4, then the Solar pump 3 Way Valve is requested ON (Refer to figure below).

  • Page 60: 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 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: Protection Control For Heating Operation

    13.1.6 Low Frequency Protection Control 1  When the compressor continuously operates at frequency lower than 25 Hz for 240 minutes, the operation frequency will change to 24 Hz for 2 minutes. 13.1.7 Low Frequency Protection Control 2  When all the below conditions comply, the compressor frequency will change to lower frequency. Temperature, T, for: Heating Outlet water (°C)

  • Page 63: Servicing Mode

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

  • Page 64: 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 65 c. After finish, install back the Overload protector following the reverse order of step a & b. External water filter (field supply) Clean the external water filter in regularly basic. External water filter is located inside the tube connector which is before water inlet connector of indoor unit (indicated with “WATER IN”).

  • Page 66: 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 67: 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 68: 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 69: 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 ...
  • Page 70 Diagnosis display Abnormality/Protection control Abnormality judgement Primary location to verify  Voltage at PFC PFC control 4 times occurrence within 10 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 71: 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: Wrong model interconnected. Wrong indoor unit or outdoor unit PCB (main) used.
  • Page 72 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: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 73 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: Faulty connector connection. Faulty sensor.

  • Page 74: 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: Dust accumulation on the outdoor unit heat exchanger. Air short circuit at outdoor unit.
  • Page 75 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: Faulty water pump. Water leak in system. Faulty connector connection.
  • Page 76 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: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 4 times in 20 minutes.
  • Page 77 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: Faulty power supply connector connection. Faulty connector connection. Faulty indoor backup heater overload protector (OLP). Faulty indoor unit PCB (main).
  • Page 78 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: Faulty connector connection. Faulty sensor. Faulty indoor unit PCB (main). Abnormality Judgment: Continue for 5 seconds.
  • Page 79 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: Faulty connector connection. Faulty control panel. Faulty indoor unit PCB (main).
  • Page 80 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: Faulty outdoor unit PCB (main). Faulty indoor unit PCB (main). Indoor-outdoor signal transmission error due to wrong wiring.
  • Page 81 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: Faulty connector connection. Faulty tank booster heater overload protector (OLP). Faulty indoor unit PCB (main). Abnormality Judgment: Continue for 60 seconds.
  • Page 82 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: Insufficient power supply. Faulty outdoor unit PCB (noise filter/main).
  • Page 83 16.5.13 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. 2/3 way closed.
  • Page 84 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: Faulty water pump. Insufficient water flow rate in system. Water leak in system. 2 way valve partially closed. Clogged expansion valve or strainer.
  • Page 85 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: Dust accumulation on the outdoor unit heat exchanger. Air short circuit at outdoor unit. Faulty water pump.
  • Page 86 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: Compressor terminal disconnect. Faulty outdoor unit PCB (main). Faulty compressor. Abnormality Judgment: Continue 4 times in 20 minutes.
  • Page 87 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: Operation stop due to short circuit inside the fan motor winding.
  • Page 88 16.5.18 Input Over Current Detection (F16) Malfunction Decision Conditions: During operation of cooling and heating, when outdoor current above 10.6A 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 89 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: Faulty compressor tank temperature sensor. 2/3 way valve closed. Refrigerant shortage (refrigerant leakage). Clogged expansion valve or strainer.
  • Page 90 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: Faulty outdoor unit fan motor. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 3 times in 30 minutes.
  • Page 91 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: Faulty outdoor unit PCB (main).
  • Page 92 16.5.22 Refrigeration Cycle Abnormality (F24) Malfunction Decision Conditions: During operation of cooling and heating, compressor frequency > Frated. During operation of cooling and heating, running current: 0.65A < I < 1.65A. During operation of cooling, water inlet temperature - indoor refrigerant liquid temperature < 5°C. During operation of heating, indoor refrigerant liquid temperature - water inlet temperature <...
  • Page 93 16.5.23 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 94 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: Faulty connector connection. Faulty switch. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue for 1 minute.
  • Page 95 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: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 96 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: Faulty connector connection. Faulty sensor.
  • Page 97 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: Faulty connector connection. Faulty sensor.
  • Page 98 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: Power supply surge. Compressor windings not uniform. Faulty outdoor unit PCB (main).
  • Page 99 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: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 100 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: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 101 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: Faulty connector connection. Faulty sensor.
  • Page 102 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: CT defective.
  • Page 103 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: Dust accumulation in the outdoor unit heat exchanger. Air short circuit at outdoor unit. 2 way valve closed.

  • Page 104: 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 105: To Remove Pressure Gauge

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

  • Page 106: To Remove Rccb

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

  • Page 107: 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 108 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 109: Technical Data

    18. Technical Data 18.1 Operation Characteristics 18.1.1 WH-SDF09C3E8 WH-UD09CE8 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 110 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 111 18.1.2 WH-SDF12C9E8 WH-UD12CE8 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 112 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 113 18.1.3 WH-SDF14C9E8 WH-UD14CE8 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 114 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 115 18.1.4 WH-SDF16C9E8 WH-UD16CE8 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 116 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 117: Heating Capacity Table

    18.2 Heating Capacity Table 18.2.1 WH-SDF09C3E8 WH-UD09CE8 Tamb 8.65 3.10 8.30 3.25 7.95 3.45 7.60 3.65 7.15 3.75 6.70 3.85 9.35 2.95 9.00 3.20 8.85 3.58 8.70 3.96 8.30 3.93 7.90 3.90 9.31 2.39 9.00 2.55 9.00 2.82 9.00 3.09 8.90...

  • Page 118: Hydraulic Pump Performance

    18.2.4 WH-SDF16C9E8 WH-UD16CE8 Tamb 10.60 4.13 10.30 4.42 10.00 4.71 9.70 5.00 8.80 4.98 7.90 4.95 11.90 4.07 11.40 4.47 10.80 4.87 10.30 5.26 9.60 5.13 9.00 4.99 13.50 3.78 13.00 4.00 12.40 4.22 11.90 4.44 10.80 4.50 9.80 4.55 16.00 3.25 16.00...

  • Page 119: Exploded View And Replacement Parts List

    19. Exploded View and Replacement Parts List 19.1 WH-SDF09C3E8 WH-SDF12C9E8 WH-SDF14C9E8 WH-SDF16C9E8 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 120 <Model: WH-SDF09C3E8 WH-SDF12C9E8 WH-SDF14C9E8 WH-SDF16C9E8> REF. DESCRIPTION & NAME QTY. WH-SDF09C3E8 WH-SDF12C9E8 WH-SDF14C9E8 WH-SDF16C9E8 REMARKS BASE PAN CWD521266 ← ← ← HOT WATER COIL-COMPLETE CWB90C1051 ← ← ← RECEIVER CWB141039 ← ← ← FLOAT (FLOW SWITCH) CWB601008 ← ← ←...

  • Page 121: Wh-Ud09Ce8 Wh-Ud12Ce8 Wh-Ud14Ce8 Wh-Ud16Ce8

    19.2 WH-UD09CE8 WH-UD12CE8 WH-UD14CE8 WH-UD16CE8...
  • Page 123 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 124 <Model: WH-UD09CE8 WH-UD12CE8 WH-UD14CE8 WH-UD16CE8> REF. NO. DESCRIPTION & NAME QTY. WH-UD09CE8 WH-UD12CE8 WH-UD14CE8 WH-UD16CE8 REMARKS BASE PAN ASS’Y CWD52K1200 ← ← ← COMPRESSOR 5JD420XBA22 ← ← ← ANTI-VIBRATION BUSHING CWH50055 ← ← ← NUT FOR COMP. MOUNT. CWH561049 ← ←...
  • Page 125 REF. NO. DESCRIPTION & NAME QTY. WH-UD09CE8 WH-UD12CE8 WH-UD14CE8 WH-UD16CE8 REMARKS ELECTRO MAGNETIC SWITCH K6C2AGA00002 ← ← ← ELECTRO MAGNETIC SWITCH K6C4E8A00001 ← ← ← REACTOR G0C153J00009 ← ← ← PTC THERMISTORS D4DDG1010001 ← ← ← Note:  All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488). ...

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