1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. Heat Pump
  5. WH-MXF09D3E8
  6. Service manual

Panasonic WH-MXF09D3E8 Service Manual

Mono bloc air-to-water heatpump system
Hide thumbs Also See for WH-MXF09D3E8:
Table of Contents

Advertisement

Quick Links

See also: Service Manual , Installation Manual

Advertisement

Table of Contents
loading

Related Manuals for Panasonic WH-MXF09D3E8

Summary of Contents for Panasonic WH-MXF09D3E8

  • Page 2: Table Of Contents

    Proper Pump Down Procedure ....62 14.3 How To Adjust Water Flow Rate ....62 2. Specifications .............5 14.4 Expansion Vessel Pre Pressure Checking 62 WH-MXF09D3E8..........5 WH-MXF12D9E8..........7 15. Maintenance Guide.......... 63 3. Features...............9 16. Troubleshooting Guide........65 16.1 Refrigeration Cycle System....... 65 4.

  • Page 3: Safety Precautions

    1. Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing for Mono bloc Air-to-Water Heatpump System (here after referred to as “Mono bloc unit”). • Electrical work and water installation work must be installed or serviced by a licensed electrician and licensed water system installer respectively.
  • Page 4 WARNING 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. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.

  • Page 5: Specifications

    2. Specifications WH-MXF09D3E8 Item Unit Refrigerant System Performance Test Condition EN14511 Heating Condition (Ambient/Water) A7W35 A2W35 Heating Capacity 9.00 9.00 BTU/h 30700 30700 kcal/h 7740 7740 4.74 3.53 kcal/hW 4.07 3.04 Air Flow /min (ft /min) 76.8 (2710) Refrigeration Control Device...
  • Page 6 Item Unit Mono bloc Unit 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 Electronic Control Item Unit Water System Performance Test Condition EN14511 Operation Range Outdoor Ambient...

  • Page 7: Wh-Mxf12D9E8

    WH-MXF12D9E8 Item Unit Refrigerant System Performance Test Condition EN14511 Heating Condition (Ambient/Water) A7W35 A2W35 Heating Capacity 12.00 12.00 BTU/h 40900 40900 kcal/h 10320 10320 4.67 3.40 kcal/hW 4.02 2.92 Air Flow /min (ft /min) 80.0 (2830) Refrigeration Control Device Expansion Valve Refrigeration Oil FV50S (1200) Refrigerant (R410A)
  • Page 8 Item Unit Mono bloc Unit Power factor means total figure of compressor and outdoor fan motor. Power Cord Number of core Length m (ft) Thermostat Electronic Control Protection Device Electronic Control Item Unit Water System Performance Test Condition EN14511 Operation Range Outdoor Ambient °C -20 ~ 35...

  • 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 Mono bloc Unit...
  • Page 11 4.1.1 Main Components Water pump : The pump circulates the water in the water circuit. Pressure gauge : The manometer allows read out of the water pressure in the water circuit. Flow switch : The flow switch checks the flow in the water circuit and protects the heat exchanger against high pressure built-up and the pump against damage.
  • 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 4.1.5 Advance Operation 4.1.4 Basic Operation...
  • Page 16 4.1.6 Weekly Timer Setting...

  • Page 17: Dimensions

    5. Dimensions Mono bloc Unit...

  • Page 18: Refrigeration And Water Cycle Diagram

    6. Refrigeration And Water Cycle Diagram...

  • Page 20: Block Diagram

    7. Block Diagram WH-MXF09D3E8...

  • Page 21: Wh-Mxf12D9E8

    WH-MXF12D9E8...
  • Page 23 L3-L (YELLOW) L3-P2 (YELLOW) L2-P2 (BLUE) RECTIFICATION L1-P2 CIRCUIT (RED) REACTOR L1-P1 RECTIFICATION (BLACK) CIRCUIT REACTOR L2-P1 (WHITE) REACTOR L3-P1 (ORANGE) EVA EXIT TEMP. SENSOR (THERMISTOR) BYPASS EXIT TEMP. SENSOR (THERMISTOR) DEFROST TEMP. SENSOR (THERMISTOR) OUTDOOR PIPE (COND.) TEMP. SENSOR (THERMISTOR) OUTDOOR AIR (OUTLET) TEMP.
  • Page 25 L3-L (YELLOW) L3-P2 (YELLOW) L2-P2 (BLUE) RECTIFICATION L1-P2 CIRCUIT (RED) REACTOR L1-P1 RECTIFICATION (BLACK) CIRCUIT REACTOR L2-P1 (WHITE) REACTOR L3-P1 (ORANGE) EVA EXIT TEMP. SENSOR (THERMISTOR) BYPASS EXIT TEMP. SENSOR (THERMISTOR) DEFROST TEMP. SENSOR (THERMISTOR) OUTDOOR PIPE (COND.) TEMP. SENSOR (THERMISTOR) OUTDOOR AIR (OUTLET) TEMP.
  • Page 27 EVA EXIT TEMP. SENSOR (THERMISTOR) L3-L (YELLOW) L3-P2 BYPASS EXIT (YELLOW) TEMP. SENSOR (THERMISTOR) L2-P2 (BLUE) DEFROST TEMP. SENSOR (THERMISTOR) L1-P2 (RED) REACTOR L1-P1 RECTIFICATION (BLACK) CIRCUIT OUTDOOR PIPE (COND.) REACTOR L2-P1 TEMP. SENSOR (THERMISTOR) (WHITE) REACTOR L3-P1 (ORANGE) FUSE3 T3.15A L250V OUTDOOR AIR (OUTLET) TEMP.
  • Page 29 EVA EXIT TEMP. SENSOR (THERMISTOR) L3-L (YELLOW) L3-P2 BYPASS EXIT (YELLOW) TEMP. SENSOR (THERMISTOR) L2-P2 (BLUE) DEFROST TEMP. SENSOR (THERMISTOR) L1-P2 (RED) REACTOR L1-P1 RECTIFICATION (BLACK) CIRCUIT OUTDOOR PIPE (COND.) REACTOR L2-P1 TEMP. SENSOR (THERMISTOR) (WHITE) REACTOR L3-P1 (ORANGE) FUSE3 T3.15A L250V OUTDOOR AIR (OUTLET) TEMP.

  • 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 33 10.2.2 Noise Filter Printed Circuit Board...
  • Page 35 Main Components...

  • Page 36: Select The Best Location

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

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

    Drainage piping installation • Use a drain hose with inner diameter of 15 mm. • The hose must be installed in a continuously downward direction and left open to the frost-free atmosphere. • If drain hose is long, use a metal support fixture along the way to eliminate the wavy pattern of drain tube. •...
  • Page 43 11.4.3.4 Disposal of Mono bloc Unit Drain Water • When a Drain elbow is used, please ensure to follow below: The unit should be placed on a stand which is taller than 50mm. Cover the 8 holes (ø20mm) with Rubber cap (refer to illustration below) •...

  • Page 44: Operation Control

    Operation 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 i. 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. • Next THERMO ON TEMP: 1.
  • Page 48 2. Heat pump operation control: • During heating heat-up interval Follow normal heating operation. Under solar priority set condition: Switch to tank heat-up interval and start counting tank heat-up timer when External Room Thermo OFF AND solar 3WV OFF AND Tank temperature < THERMO ON TEMP (End Room Interval Early) OR Switch to tank heat-up interval and start counting tank heat-up timer when tank temperature <...

  • Page 50: Water Pump

    12.1.5 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 53: Flow Switch

    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 54: Tank Booster Heater Control

    12.10 Tank Booster Heater Control 12.10.1 Tank booster heater control Heating operation condition: Heater OFF Tank set temperature + Tank set temperature + [-5°C] [+2°C] Heater ON 1. Booster heater Turn On condition: • After BOOSTER HEATER DELAY TIMER fulfill 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 59: 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 60 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 minimum compressor frequency will change to lower frequency. Temperature, T, for: Heating Outlet water (°C)

  • Page 61: 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 Mono bloc unit (Refrigerant system) pipe temperature and outdoor air temperature is low, deice operation start where mono bloc unit fan motor stop.

  • Page 62: 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 Mono bloc unit and RCCB. Then, for remote control operation please refers to Mono bloc unit operation instruction.

  • Page 63: 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: 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 66: Relationship Between The Condition Of The Mono Bloc Unit And Pressure And Electric Current

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

  • Page 68: Error Codes Table

    16.4 Error Codes Table Diagnosis display Abnormality / Protection control Abnormality Judgement Primary location to verify No abnormality detected — — • Indoor/outdoor connection wire • Indoor/outdoor PCB Indoor / Outdoor capacity unmatched 90s after power supply • Specification and combination table in catalogue Outdoor compressor temperature sensor •...
  • Page 69 Diagnosis display Abnormality / Protection control Abnormality Judgement Primary location to verify Indoor water inlet temperature sensor • Water inlet temperature sensor Continue for 5 sec. abnormality (defective or disconnected) Outdoor discharge pipe temperature • Outdoor discharge pipe temperature Continue for 5 sec. sensor abnormality sensor (defective or disconnected) 4 times occurrence within...

  • Page 70: 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 71 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 72 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 73 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 74 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 75 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 76 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 77 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 78 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 79 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 80 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 81 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 82 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 83 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 84 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 85 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 86 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 87 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 88 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 89 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 90 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 91 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 92 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 93 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 94 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 95 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 96 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 97 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 98 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 99 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 100 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 101 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 102 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 103: 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 104: 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 105: To Remove Transformer And Electronic Controller Board

    17.6 To Remove Transformer and Electronic Controller Board Disconnect all connectors of CN-TH2 (WHT), CN-TH1 (WHT), CN-BOOSTER (BLU), CN-OLP2 (WHT), CN-PUMP1 (GRN), CN-RCV (WHT), CN-V3 (GRN), CN-FLOW (YLW), CN-REMOTE (WHT), CN-THERMO (WHT), DATA (RED), G02 (GRN), AC3-L1 (BLK), G01 (GRN), G04 (GRN), AC2-L3 (BLK), HT1-L2 (ORG), HT1-L3 (RED), CN-OLP1 (WHT) and CN-HT (WHT) from the Electronic Controller Board.

  • Page 106: 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.

  • Page 107: To Remove Bottle Complete

    17.10 To Remove Bottle Complete When reinstall the water pipe, use grease or water at the joining.

  • Page 108: Technical Data

    18. Technical Data 18.1 Operation Characteristics 18.1.1 WH-MXF09D3E8 Heating Characteristics at Different Outdoor Air Temperature • Condition Indoor water inlet temperature: 30°C Indoor water outlet temperature: 35°C 14.000 13.500 13.000 12.500 12.000 11.500 11.000 10.500 10.000 9.500 9.000 8.500 -15 -13 -11 Outdoor Air Temperature ( 3.700...
  • Page 109 18.1.2 WH-MXF12D9E8 Heating Characteristics at Different Outdoor Air Temperature • Condition Indoor water inlet temperature: 30°C Indoor water outlet temperature: 35°C 14.000 13.500 13.000 12.500 12.000 11.500 11.000 10.500 10.000 9.500 9.000 8.500 -15 -13 -11 Outdoor Air Temperature ( 5.250 4.750 4.250...

  • Page 110: Heating Capacity Table

    18.2 Heating Capacity Table 18.2.1 WH-MXF09D3E8 Water Outdoor Input Input Input Input Input Input Capacity Capacity Capacity Capacity Capacity Capacity Power Power Power Power Power Power 9000 3280 9000 3550 9000 3950 9000 4340 9000 4770 9000 5200 9000 2750...

  • Page 111: Exploded View And Replacement Parts List

    19. Exploded View and Replacement Parts List 19.1 (Refrigerant System)
  • Page 113 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 114 <Model: Refrigerant System> REF. NO. DESCRIPTION & NAME QTY. WH-MXF09D3E8 WH-MXF12D9E8 REMARK BASE PAN ASS’Y CWD52K1276 ← COMPRESSOR 5JD420XBA22 ← BUSHING - COMPRESSOR MOUNT CWH50055 ← NUT-COMPRESSOR MOUNT CWH561049 ← GASKET FOR TERMINAL COVER CWB811017 ← CRANKCASE HEATER CWA341053 ←...
  • Page 115 REF. NO. DESCRIPTION & NAME QTY. WH-MXF09D3E8 WH-MXF12D9E8 REMARK V-COIL COMPLETE CWA43C2335 ← SENSOR-COMP. CWA50C2807 ← SOUND PROOF MATERIAL CWG302599 ← ELECTRO MAGNETIC SWITCH K6C2AGA00002 ← CAPACITOR-REACTOR DS441205NPQA ← PTC THERMISTORS D4DDG1010001 ← (Note) • All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488).
  • Page 117 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 118: (Water System)

    <Model: Water System> REF. NO. DESCRIPTION & NAME QTY. WH-MXF09D3E8 WH-MXF12D9E8 REMARK BASE PAN ASS’Y CWD52K1242 ← HOT WATER COIL-COMPLETE CWB90C1046 ← RECEIVER CWB141039 ← FLOAT(FLOW SWITCH) CWB601008 ← PUMP CWB532096 ← BOTTLE COMP. CWH90C0013 ← HEATER ASS'Y CWA34K1029 ←...

This manual is also suitable for:

Wh-mxf12d9e8

Table of Contents