Panasonic WH-MXF09D3E5 Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. Heat Pump
  5. WH-MXF09D3E5
  6. Service manual

Panasonic WH-MXF09D3E5 Service Manual

Monobloc air-to-water heatpump system
Hide thumbs Also See for WH-MXF09D3E5:
Table of Contents

Advertisement

Quick Links

See also: Installation Manual
Monobloc Air-to-Water Heatpump System
Monobloc Unit
WH-MXF09D3E5
WH-MXF12D6E5
©
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM1105118C2
Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011.

Advertisement

Table of Contents
loading

Related Manuals for Panasonic WH-MXF09D3E5

Summary of Contents for Panasonic WH-MXF09D3E5

  • Page 1 Order No. PHAAM1105118C2 Monobloc Air-to-Water Heatpump System Monobloc Unit WH-MXF09D3E5 WH-MXF12D6E5 © Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    6 Refrigeration And Water Cycle Diagram ---------------- 18 17.6. To Remove Transformer and Electronic 7 Block Diagram --------------------------------------------------- 20 Controller Board----------------------------------------- 104 7.1. WH-MXF09D3E5----------------------------------------- 20 17.7. To Remove Pressure Relief Valve------------------ 104 7.2. WH-MXF12D6E5----------------------------------------- 21 17.8. To Remove Flow Switch ------------------------------ 105 8 Wiring Connection Diagram --------------------------------- 22 17.9.

  • Page 3: Safety Precautions

    1 Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. • Electrical work and water installation work must be installed or serviced by a licensed electrician and licensed water system installer respectively. 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-MXF09D3E5 Item Unit Refrigerant System Performance Test Condition EUROVENT Heating Capacity 9.00 BTU/h 30700 kcal/h 7740 4.74 kcal/hW 4.07 Air Flow 76.8 (2710) /min (ft /min) Refrigeration Control Device Expansion Valve Refrigeration Oil FV50S (1200) Refrigerant (R410A) kg (oz) 2.30 (81.2)
  • Page 6 Item Unit Monobloc Unit Thermostat Electronic Control Protection Device Electronic Control Item Unit Water System Performance Test Condition EUROVENT °C Operation Range Outdoor Ambient -20 ~ 35 °C Water Outlet 25 ~ 55 Internal Pressure Differential 15.0 Refrigerant Pipe Diameter Liquid mm (inch) 9.52 (3/8)

  • Page 7: Wh-Mxf12D6E5

    2.2. WH-MXF12D6E5 Item Unit Refrigerant System Performance Test Condition EUROVENT Heating Capacity 12.00 BTU/h 41000 kcal/h 10320 4.67 kcal/hW 4.02 Air Flow 80.0 (2830) /min (ft /min) Refrigeration Control Device Expansion Valve Refrigeration Oil FV50S (1200) Refrigerant (R410A) kg (oz) 2.30 (81.2) Pipe Diameter Liquid...
  • Page 8 Item Unit Water System Performance Test Condition EUROVENT °C Operation Range Outdoor Ambient -20 ~ 35 °C Water Outlet 25 ~ 55 Internal Pressure Differential 27.5 Refrigerant Pipe Diameter Liquid mm (inch) 9.52 (3/8) mm (inch) 15.88 (5/8) Water Pipe Diameter Inlet mm (inch) 30 (1-3/16)

  • Page 9: Features

    3 Features • Inverter Technology - Energy saving • High Efficiency • Compact Design • Environment Protection - Non-ozone depletion substances refrigerant (R410A) • Easy to use remote control • Weekly Timer setting • Quality Improvement - Random auto restart after power failure for safety restart operation - Gas leakage protection - Prevent compressor reverse cycle - Inner protector to protect compressor...

  • Page 10: Location Of Controls And Components

    4 Location of Controls and Components 4.1. Monobloc Unit...
  • Page 11 4.1.1. Main Components...

  • Page 12: Remote Control

    4.1.2. Location of Control 4.1.2.1. Remote Control • Some functions described in this manual may not be applicable to your unit. • Consult your nearest authorized dealer for further information. • For normal operation, the buttons are not in use.
  • Page 14 4.1.3. Setting Up The Special Functions • After initial installation, you can manually adjust the settings. The initial setting remains active until the user changes it. • The remote control can be used for multiple installations. Some functions may not be applicable to your unit. •...
  • Page 15 4.1.4. Basic Operation 4.1.5. Advance Operation...
  • Page 16 4.1.6. Weekly Timer Setting...

  • Page 17: Dimensions

    5 Dimensions 5.1. Monobloc Unit...

  • Page 18: Refrigeration And Water Cycle Diagram

    6 Refrigeration And Water Cycle Diagram...

  • Page 20: Block Diagram

    7 Block Diagram 7.1. WH-MXF09D3E5...

  • Page 21: Wh-Mxf12D6E5

    7.2. WH-MXF12D6E5...

  • Page 22: Wiring Connection Diagram

    8 Wiring Connection Diagram 8.1. WH-MXF09D3E5...

  • Page 24: Wh-Mxf12D6E5

    8.2. WH-MXF12D6E5...

  • Page 26: Electronic Circuit Diagram

    9 Electronic Circuit Diagram 9.1. WH-MXF09D3E5...

  • Page 28: Wh-Mxf12D6E5

    9.2. WH-MXF12D6E5...

  • Page 30: Printed Circuit Board

    10 Printed Circuit Board 10.1. Water System 10.1.1. Main Printed Circuit Board...
  • Page 31 10.1.2. Solar Printed Circuit Board (Optional)

  • Page 32: Refrigerant System

    10.2. Refrigerant System 10.2.1. Main Printed Circuit Board...
  • Page 33 10.2.1.1. Capacitor Printed Circuit Board 10.2.1.2. Noise Filter Printed Circuit Board...

  • Page 34: Installation Instruction Monobloc Unit

    11 Installation Instruction Monobloc Unit Dimension Diagram...
  • Page 35 Main Components It is advisable to avoid more than 2 blockage directions. For better ventilation & multiple-outdoor installation, please consult authorized dealer/specialist.

  • Page 36: Select The Best Location

    11.1. Select The Best Location 11.2. Mono bloc Unit Installation • Install Mono bloc unit at outdoor only. Mono bloc unit will become heavy when filled with water. • Avoid location where ambient temperature is below -20°C. Therefore, please install the Mono bloc unit on strong concrete •...

  • Page 37: Piping Installation

    (including EN61770), and local building Model regulation codes. Water • Ensure the components installed in the water circuit could WH-MXF09D3E5 Rp 1 1/4" [117.6 N•m] withstand water pressure during operation. WH-MXF12D6E5 • Do not apply excessive force to piping that may damage the •...

  • Page 38: Connect The Cord And Cable To Mono Bloc Unit

    11.4. Connect The Cord And Cable To Mono bloc Unit (REFER TO WIRING DIAGRAM AT UNIT FOR DETAIL) 1. Cable connection to the power supply through isolating device (Disconnecting means). • Isolating device (Disconnecting means) should have minimum 3.0 mm contact gap. •...
  • Page 39 817.851kW (for WH-MXF09D3E5) 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 distribution network operator if necessary, that the equipment is connected only to a supply with a short-circuit power S greater than or equal to 817.851kW.
  • Page 40 • The equipment’s power supply 2 shall be connected to a suitable supply network, with the following maximum permissible system impedance Z at the interface for models: WH-MXF09D3E5 : 0.236Ω Please liaise with supply authority to ensure that the power supply 2 is connected only to a supply of that impedance or less. For WH-MXF12D6E5: •...
  • Page 41 When the wall is hollow, please be sure to use the sleeve for remote controller cable to prevent dangers caused by mice biting the cable. DS3744 (Panasonic Co., Ltd.) or equivalent. 2. Secure the remote controller lower case to the outlet box with the two accessory screws (3).
  • Page 42 5. Route the remote controller cable (2) inside the lower case in accordance with the intended feeding-out direction. (Refer to the illustration at below) 6. Insert firmly the connector of remote controller cable (2) to connector (CON1) in the upper case circuit board. (Refer to the illustration at below) 7.

  • Page 43: 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 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 but water pump ON. - Heat pump THERMO ON TEMP: 1.
  • Page 45 12.1.4. Heat + Tank Mode Operation Setting 1:- When heating priority is set by control panel: 1. 3 ways valve control: • 3 ways valve switch and fix to room side. 2. Heat pump operation control:- • Heat pump operate follow normal operation. 3.
  • Page 46 • During tank heat-up interval - Heat pump tank target temperature = tank set temperature or [55°C] whichever lower - Heat Pump Water Outlet set temperature is set to Maximum [53°C] during tank interval i. Case 1 - THERMO OFF TEMP : 1.
  • Page 47 * 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.
  • Page 48 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.
  • Page 49 • 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. Fan Motor Operation Fan motor is adjusted according to operation condition. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation.

  • Page 50: Water Pump

    12.2. Water Pump 12.2.1. Water Pump Control 1. Once the monobloc 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 monobloc unit or malfunction, the compressor should be OFF immediately and restart delay after 3 minutes.

  • Page 51: Force Heater Mode Operation

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

  • Page 52: 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. Back-Up Heater Control 12.9.1. Electric Heater control 1. Normal Heating Mode • Heater On condition: a.

  • Page 53: 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 54: Solar Operation (Optional)

    3. When quiet request OFF time by weekly timer When any of above mentioned condition is achieved, this control is cancelled. 12.14. Solar operation (Optional) 12.14.1. Solar operation 1. Control according to preset whether Solar Priority is set or not. 2.

  • Page 57: External Room Thermostat Control (Optional)

    12.15. External Room Thermostat Control (Optional) Purpose: 1. Better room temperature control to fulfill different temperature request by external room thermostat. Recomended external room thermostat: Maker Characteristic Siemen (REV200) Touch panel Siemen (RAA20) Analog Connection of external room thermostat: Wire connection and thermo characteristic of Siemen REV200: Setting L/L1 (H) Heat Thermo...

  • Page 58: 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 59 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 60: Protection Control For Heating Operation

    13.2. Protection Control For Heating Operation 13.2.1. Outdoor Air Temperature Control The maximum current value is regulated when the outdoor air temperature rises above 14°C in order to avoid compressor overloading. 13.2.2. Deice Operation When Monobloc unit (Refrigerant system) pipe temperature and outdoor air temperature is low, deice operation start where monobloc unit fan motor stop.

  • Page 61: 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 monobloc unit and RCCB. Then, for remote control operation please refers to monobloc unit operation instruction.

  • Page 62: 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 63 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 64: 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 65: Relationship Between The Condition Of The Monobloc Unit And Pressure And Electric Current

    16.2. Relationship Between The Condition Of The Monobloc Unit And Pressure And Electric Current Heating Mode Condition of the Monobloc Unit Low Pressure High Pressure Electric current during operation Water leakage or insufficient water flow rate in the system Excessive amount of refrigerant Inefficient compression Insufficient refrigerant (gas leakage)

  • Page 66: 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 remote control LED will blink and error code will display on the remote control Timer display LCD. •...

  • Page 67: 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 68 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 69: 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 70 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 71 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 72: 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. Dust accumulation on the outdoor unit heat exchanger. 2.
  • Page 73 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 74 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 75 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 76 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 77 16.5.9. Indoor-Control Panel Communication Abnormality (H76) Malfunction Decision Conditions: During standby and operation of cooling and heating, indoor-remote control error occur. Malfunction Caused: 1. Faulty connector connection. 2. Faulty remote control. 3. Faulty indoor unit PCB (main).
  • Page 78 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 79 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 80 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 81 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: 1. Faulty water pump. 2. Insufficient water flow rate in system. 3. Water leak in system. 4.
  • Page 82 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 83 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 84 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 85 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 86 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 87 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 88 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 89 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 90 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 91 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 92 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 93 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 94 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 95 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 96 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 97 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 98 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 99 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 100 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 101 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 102: 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. WARNING Be sure to switch off all the power supply before performing each of the below action.

  • Page 103: To Remove The Cabinet Rear Plate

    17.3. To Remove The Cabinet Rear Plate 17.4. To Remove Pressure Gauge 17.5. To Remove RCCB...

  • Page 104: To Remove Transformer And Electronic Controller Board

    17.6. To Remove Transformer and Electronic Controller Board 17.7. To Remove Pressure Relief Valve When reinstall the water pipe, use grease or water at the joining.

  • Page 105: To Remove Flow Switch

    17.8. To Remove Flow Switch When reinstall the water pipe, use grease or water at the joining. 17.9. To Remove Water Pump When reinstall the water pipe, use grease or water at the joining. 17.10. To Remove Bottle Complete When reinstall the water pipe, use grease or water at the joining.

  • Page 106: Technical Data

    18 Technical Data 18.1. Operation Characteristics 18.1.1. WH-MXF09D3E5 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 107 18.1.2. WH-MXF12D6E5 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 108: Heating Capacity Table

    18.2. Heating Capacity Table 18.2.1. WH-MXF09D3E5 Water Out Outdoor Capacity Input Power Capacity Input Power Capacity Input Power Capacity Input Power Capacity Input Power Capacity Input Power 9000 3280 9000 3550 9000 3950 9000 4340 9000 4770 9000 5200 9000...

  • Page 109: Exploded View And Replacement Parts List

    19 Exploded View and Replacement Parts List 19.1. (Refrigerant System)
  • Page 111 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 112 <Model: Refrigerant System> REF. NO. DESCRIPTION & NAME QTY. WH-MXF09D3E5 WH-MXF12D6E5 REMARKS ← BASE PAN ASS’Y CWD52K1276 ← COMPRESSOR 5JD420XAA22 ← BUSHING - COMPRESSOR MOUNT CWH50055 ← NUT - COMPRESSOR MOUNT CWH561049 ← GASKET FOR TERMINAL COVER CWB811017 ← CRANKCASE HEATER CWA341053 ←...
  • Page 113 REF. NO. DESCRIPTION & NAME QTY. WH-MXF09D3E5 WH-MXF12D6E5 REMARKS ← CRANKCASE HEATER (BASE PAN) CWA341071 ← V-COIL COMPLETE CWA43C2335 ← SENSOR - COMP. CWA50C2807 ← TERMINAL BOARD ASS’Y CWA28K1238 ← SOUND PROOF MATERIAL CWG302598 ← SOUND PROOF MATERIAL CWG302599 (Note) •...

  • Page 114: Water System)

    19.2. (Water System)
  • Page 115 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 116 <Model: Water System> REF. NO. DESCRIPTION & NAME QTY. WH-MXF09D3E5 WH-MXF12D6E5 REMARKS ← BASE PAN ASS’Y CWD52K1242 ← HOT WATER COIL-COMPLETE CWB90C1046 ← RECEIVER CWB141039 ← FLOAT (FLOW SWITCH) CWB601008 ← PUMP CWB532096 BOTTLE COMP. CWH90C0018 CWH90C0013 HEATER ASS'Y CWA34K1026...

This manual is also suitable for:

Wh-mxf12d6e5

Table of Contents