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Panasonic WH-UD30BE5-1 Service Manual

Air-to-water heatpump
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TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
2.1. WH-SD24BE5-1 WH-UD24BE5-1-------------------- 5
2.2. WH-SD30BE5-1 WH-UD30BE5-1-------------------- 7
3 Features ------------------------------------------------------------- 9
4.1. Indoor Unit--------------------------------------------------10
4.2. Outdoor Unit -----------------------------------------------12
5 Dimensions--------------------------------------------------------13
5.1. Indoor Unit--------------------------------------------------13
5.2. Outdoor Unit -----------------------------------------------14
Indoor Unit
WH-SD24BE5-1 WH-UD24BE5-1
WH-SD30BE5-1 WH-UD30BE5-1
PAGE
7 Block Diagram --------------------------------------------------- 16
8 Wiring Connection Diagram--------------------------------- 17
8.1. Indoor Unit ------------------------------------------------- 17
8.2. Outdoor Unit----------------------------------------------- 18
9 Electronic Circuit Diagram----------------------------------- 19
9.1. Indoor Unit ------------------------------------------------- 19
9.2. Outdoor Unit----------------------------------------------- 20
10 Printed Circuit Board ------------------------------------------ 21
10.1. Indoor Unit ------------------------------------------------- 21
10.2. Outdoor Unit----------------------------------------------- 22
11 Installation Instruction ---------------------------------------- 24
11.1. Select The Best Location ------------------------------ 24
©
Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM1002132C2
Air-to-Water Heatpump
Outdoor Unit
PAGE

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Summary of Contents for Panasonic WH-UD30BE5-1

  • Page 1: Table Of Contents

    10.2. Outdoor Unit----------------------------------------------- 22 5.2. Outdoor Unit -----------------------------------------------14 11 Installation Instruction ---------------------------------------- 24 6 Refrigeration And Water Cycle Diagram-----------------15 11.1. Select The Best Location ------------------------------ 24 © Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010. Unauthorized copying and distribution is a violation of law.
  • Page 2 Switch and Water Pump-------------------------------- 73 18 Technical Data---------------------------------------------------- 75 18.1. Operation Characteristics ------------------------------ 75 18.2. Heating Capacity Table --------------------------------- 77 18.3. Hydraulic Pump Performance------------------------- 79 19 Exploded View and Replacement Parts List ----------- 80 19.1. WH-SD24BE5-1 WH-SD30BE5-1 ------------------ 80 19.2. WH-UD24BE5-1 WH-UD30BE5-1 ------------------ 82...

  • Page 3: Safety Precautions

    1 Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. • Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating and main circuit for the model installed. •...
  • Page 4 19. The unit is only for use in a closed water system. Utilization in an open water circuit may lead to excessive corrosion of the water piping. 20. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury. 21.

  • Page 5: Specifications

    2 Specifications 2.1. WH-SD24BE5-1 WH-UD24BE5-1 Item Unit Outdoor Unit Performance Test Condition EUROVENT Heating Capacity 7.00 BTU/h 23900 kJ/h 25200 4.40 BTU/hW 15.0 Noise Level dB (A) Power Level dB Air Flow 55.1 (1945) /min (ft /min) Refrigeration Control Device Expansion Valve Refrigeration Oil FV50S (900)
  • Page 6 Item Unit Power Cord Number of core Length m (ft) Thermostat Electronic Control Protection Device Electronic Control Item Unit Indoor Unit Performance Test Condition EUROVENT °C Operation Range Outdoor Ambient -20 ~ 35 °C Water Outlet 25 ~ 55 Noise Level dB (A) Power Level dB Dimension...

  • Page 7: Wh-Sd30Be5-1 Wh-Ud30Be5-1

    2.2. WH-SD30BE5-1 WH-UD30BE5-1 Item Unit Outdoor Unit Performance Test Condition EUROVENT Heating Capacity 9.00 BTU/h 30700 kJ/h 32400 4.10 BTU/hW 14.0 Noise Level dB (A) Power Level dB Air Flow 55.1 (1945) /min (ft /min) Refrigeration Control Device Expansion Valve...
  • Page 8 Item Unit Indoor Unit Performance Test Condition EUROVENT °C Operation Range Outdoor Ambient -20 ~ 35 °C Water Outlet 25 ~ 55 Noise Level dB (A) Power Level dB Dimension Height mm (inch) 644 (25-11/32) Width mm (inch) 504 (19-27/32) Depth mm (inch) 295 (11-5/8)

  • Page 9: Features

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

  • Page 10: Location Of Controls And Components

    4 Location of Controls and Components 4.1. Indoor Unit 4.1.1. Location of Control...

  • Page 12: Outdoor Unit

    4.1.2. Main Components 4.2. Outdoor Unit...

  • Page 13: Dimensions

    5 Dimensions 5.1. Indoor Unit...

  • Page 14: Outdoor Unit

    5.2. Outdoor Unit...

  • Page 15: Refrigeration And Water Cycle Diagram

    6 Refrigeration And Water Cycle Diagram Piping size Min. Max. Rated Common Additional Piping Piping Length Length Elevation Refrigerant Length Length Model Liquid (g/m) D24BE5-1 5/8” 1/4” D30BE5-1 5/8” 1/4” * If piping length is over common length, additional refrigerant should be added as shown in the table.

  • Page 16: Block Diagram

    7 Block Diagram...

  • Page 17: Wiring Connection Diagram

    8 Wiring Connection Diagram 8.1. Indoor Unit...

  • Page 18: Outdoor Unit

    8.2. Outdoor Unit...

  • Page 19: Electronic Circuit Diagram

    9 Electronic Circuit Diagram 9.1. Indoor Unit...

  • Page 20: Outdoor Unit

    9.2. Outdoor Unit...

  • Page 21: Printed Circuit Board

    10 Printed Circuit Board 10.1. Indoor Unit 10.1.1. Main Printed Circuit Board...

  • Page 22: Outdoor Unit

    10.2. Outdoor Unit 10.2.1. Main Printed Circuit Board...
  • Page 23 10.2.2. Capacitor Printed Circuit Board 10.2.3. Noise Filter Printed Circuit Board...

  • Page 24: Installation Instruction

    11 Installation Instruction 11.1. Select The Best Location 11.2. Indoor/Outdoor Unit INDOOR UNIT Installation Diagram • There should not be any heat source or steam near the unit. • A place where air circulation in the room is good. • A place where drainage can be easily done. •...

  • Page 25: Indoor Unit

    11.3. Indoor Unit 11.3.3. INDOOR UNIT INSTALLATION 11.3.3.1. Install The Indoor Unit 11.3.1. HOW TO FIX INSTALLATION PLATE 1. Engage the slots on the indoor unit to the hooks of The mounting wall is strong and solid enough to prevent it from installation plate.
  • Page 26 • After installation, check the water leakage condition in 11.3.3.4. Drain Hose Installation connection area during test run. • Use inner diameter 15 mm drain hose in the market. • This hose must to be installed in a continuosly downward direction and in a frost-free environment.
  • Page 27 11.3.4.1. Wire Stripping and Connecting Requirement Terminal screw Tightening torque N cm {kgf cm} 157~196 {16~20} 11.3.4.2. Connecting Requirement 196~245 {20~25} • This equipment complies with IEC 61000-3-12 provided that the short-circuit power S is greater than or equal to UD24BE5-1: 961.61kW, UD30BE5-1: 961.61kW at the interface point between the user’s supply and the public system.

  • Page 28: Outdoor Unit

    11.4. Outdoor Unit 11.4.1. INSTALL THE OUTDOOR UNIT • After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). 2. When installing at roof, please consider strong wind and earthquake.

  • Page 29: Connect The Cable To The Outdoor Unit

    11.4.3. EVACUATION OF THE EQUIPMENT WHEN INSTALLING AN AIR-TO-WATER HEATPUMP, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. •...

  • Page 30: Pipe Insulation

    3. Secure the cable onto the control board with the holder (clamper). 4. Select required direction and apply protective bushing provided in accessories to protect cables from sharp edges. 5. Once all wiring work has been completed, tie the wires and cord together with the binding strap so that they do not touch other parts such as the compressor and bare copper pipes.

  • Page 31: 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 32: Water Pump

    12.1.3. 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 33: Pump Down Operation

    12.3. Pump Down Operation Purpose Ensure the pump down operation when relocating or disposing of the unit. The pump down operation will extract all refrigerant from the piping into the outdoor unit. 1. Make sure the OFF/ON control panel LED is OFF (no operation). 2.

  • Page 34: Indoor Unit Safety

    12.5. Indoor Unit Safety 12.5.1. Indoor Unit Safety Control 1. When water pump is ON, the system will start checking flow switch status (ON/OFF). 2. If the flow switch ON for 10 seconds, the system will check on the water inlet temperature for 10 seconds. If the water inlet temperature not exceeds 80°C, the water pump shall be continuously running with normal mode.

  • Page 35: 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 36: Protection Control For Heating Operation

    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) T < 14 or T Outdoor air (°C) T < 4 or T Indoor heat exchanger (°C) 13.1.8.

  • Page 37: Servicing Mode

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

  • Page 38: 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 39 6. How to release the trapped air in water circuit • Turn up the lever to become horizontal. (Refer to figure “Pressure relief valve”). The trapped air will be drained out together with water. After few seconds, turn down the lever to stop the water drainage. •...

  • Page 40: 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 41: 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 42: 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 system error display LCD. •...

  • Page 43: Error Codes Table

    16.4. Error Codes Table Diagnosis display Abnormality / Protection control Abnormality Judgement Primary location to verify No abnormality detected — — Outdoor compressor temperature sensor Continue for 5 sec. • Compressor temperature sensor abnormality (defective or disconnected) Indoor refrigerant liquid temperature Continue for 5 sec.

  • Page 44: Self-Diagnosis Method

    16.5. Self-diagnosis Method 16.5.1. Compressor Tank Temperature Sensor Abnormality (H15) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the compressor tank temperature sensor are used to determine sensor error. Malfunction Caused: 1. Faulty connector connection. 2.
  • Page 45 16.5.2. Indoor Refrigerant Liquid Temperature Sensor Abnormality (H23) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the indoor refrigerant liquid temperature sensor are used to determine sensor error. Malfunction Caused: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 46 16.5.3. Compressor Low Pressure Protection (H42) Error code will not display (no OFF/ON Control Panel LED blinking) but store in EEPROM 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.
  • Page 47 16.5.4. Water Flow Switch Abnormality (H62) Malfunction Decision Conditions: During operation of heating, the water flow detected by the indoor water flow switch is used to determine water flow error. Malfunction Caused: 1. Faulty water pump. 2. Water leak in system. 3.
  • Page 48 16.5.5. Outdoor High Pressure Abnormality (H64) Malfunction Decision Conditions: During operation of heating, when the outdoor high pressure sensor output signal is 0Vdc or 5Vdc. Malfunction Caused: 1. Faulty connector connection. 2. Faulty sensor. 3. Faulty outdoor unit PCB. Abnormality Judgment: Continue for 5 seconds (but no judgment for 5 minutes after compressor startup/restart).
  • Page 49 16.5.6. Indoor-Control Panel Communication Abnormality (H76) Malfunction Decision Conditions: During standby and operation of heating, indoor-control panel error occur. Malfunction Caused: 1. Faulty connector connection. 2. Faulty control panel. 3. Faulty indoor unit PCB.
  • Page 50 16.5.7. Indoor/Outdoor Abnormal Communication (H90) Malfunction Decision Conditions: During standby and operation of 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. 2. Faulty indoor unit PCB. 3.
  • Page 51 To determine if outdoor unit PCB or indoor unit PCB is faulty: 1. Start with outdoor terminal. 2. Remove terminal 3 wire. 3. Measure with a multimeter (voltage in DC range). 4. If it is never constant, and outdoor PCB is good fluctuating in between 20-70Vdc, outdoor PCB is in good condition. 16.5.8.
  • Page 52 16.5.9. Outdoor High Pressure Protection (H98) Error code will not display (no OFF/ON Control Panel LED blinking) but store in EEPROM Malfunction Decision Conditions: During operation of heating, when pressure 4.0 MPa and above is detected by outdoor high pressure sensor. Malfunction Caused: 1.
  • Page 53 16.5.10. Outdoor High Pressure Switch Activate (F12) Malfunction Decision Conditions: During operation of heating, when pressure 4.5 MPa and above is detected by outdoor high pressure switch. Malfunction Caused: 1. Faulty water pump. 2. Insufficient water flow rate in system. 3.
  • Page 54 16.5.11. 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. 3. Faulty compressor. Abnormality Judgment: Continue 4 times in 20 minutes.
  • Page 55 16.5.12. 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 56 16.5.13. Input Over Current Detection (F16) Malfunction Decision Conditions: During operation of heating, when outdoor current above 28.0A is detected by the current transformer (CT) in the outdoor unit PCB. Malfunction Caused: 1. Excessive refrigerant. 2. Faulty outdoor unit capacitor PCB. 3.
  • Page 57 16.5.14. Compressor Overheating (F20) Malfunction Decision Conditions: During operation of heating, when temperature above 112°C is detected by the compressor tank temperature sensor. Malfunction Caused: 1. Faulty compressor tank temperature sensor. 2. 2/3 way valve closed. 3. Refrigerant shortage (refrigerant leakage). 4.
  • Page 58 16.5.15. IPM Overheating (F22) Malfunction Decision Conditions: During operation of 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. Abnormality Judgment: Continue 3 times in 30 minutes.
  • Page 59 16.5.16. Output Over Current Detection (F23) Malfunction Decision Conditions: During operation of heating, when DC current above 30.0 ± 5.0A is detected by the IPM DC Peak sensing circuitry in the outdoor unit PCB. Malfunction Caused: 1. Faulty outdoor unit PCB. 2.
  • Page 60 16.5.17. Refrigeration Cycle Abnormality (F24) Malfunction Decision Conditions: 1. During operation of heating, compressor frequency > Fhrated. 2. During operation of heating, running current: 0.65A < I < 1.65A. 3. During operation of heating, indoor pipe temperature — water inlet temperature < 5°C. Malfunction Caused: 1.
  • Page 61 16.5.18. Four Way Valve Abnormality (F25) Malfunction Decision Conditions: During operation of heating, when temperature below 0°C is detected by indoor pipe temperature sensor. Malfunction Caused: 1. Faulty sensor. 2. Faulty connector connection. 3. Faulty outdoor unit PCB. 4. Faulty four way valve. Abnormality Judgment: Continue 4 times in 30 minutes.
  • Page 62 16.5.19. 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. Abnormality Judgment: Continue for 1 minute.
  • Page 63 16.5.20. Outdoor Air Temperature Sensor Abnormality (F36) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor error. Malfunction Caused: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 64 16.5.21. Indoor Water Inlet Temperature Sensor Abnormality (F37) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the indoor water inlet temperature sensor are used to determine sensor error. Malfunction Caused: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 65 16.5.22. Outdoor Discharge Pipe Temperature Sensor Abnormality (F40) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor error. Malfunction Caused: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 66 16.5.23. Power Factor Correction (PFC) Abnormality (F41) Malfunction Decision Conditions: During operation of heating, when the PFC protection circuitry in the outdoor unit main PCB senses abnormal high DC voltage level. Malfunction Caused: 1. Power supply surge. 2. Compressor windings not uniform. 3.
  • Page 67 16.5.24. Outdoor Pipe Temperature Sensor Abnormality (F42) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor error. Malfunction Caused: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 68 16.5.25. Indoor Water Outlet Temperature Sensor Abnormality (F45) Malfunction Decision Conditions: During startup and operation of heating, the temperatures detected by the indoor water outlet temperature sensor are used to determine sensor error. Malfunction Caused: 1. Faulty connector connection. 2. Faulty sensor. 3.
  • Page 69 16.5.26. 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 70: Disassembly And Assembly Instructions

    17 Disassembly and Assembly Instructions WARNING High Voltage are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 17.1.

  • Page 71: To Remove Pressure Gauge

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

  • Page 72: To Remove Electronic Controller Board And Transformer

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

  • Page 73: To Remove Pressure Relief Valve, Flow Switch And Water Pump

    17.7. To Remove Pressure Relief Valve, Flow Switch and Water Pump 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 74 When reinstall the water pipe, use grease or water at the joining.

  • Page 75: Technical Data

    18 Technical Data 18.1. Operation Characteristics 18.1.1. WH-SD24BE5-1 WH-UD24BE5-1 Heating Characteristics at Different Outdoor Air Temperature and Piping Length Condition: Indoor water inlet temperature : 30°C Indoor water outlet temperature : 35°C Piping (m) OD (°C) Capacity (W) Input Power (W) Ampere (A) HP (MPa) Td (°C)
  • Page 76 18.1.2. WH-SD30BE5-1 WH-UD30BE5-1 Heating Characteristics at Different Outdoor Air Temperature and Piping Length Condition: Indoor water inlet temperature : 30°C Indoor water outlet temperature : 35°C Piping (m) OD (°C) Capacity (W) Input Power (W) Ampere (A) HP (MPa) Td (°C)

  • Page 77: Heating Capacity Table

    18.2. Heating Capacity Table 18.2.1. WH-SD24BE5-1 WH-UD24BE5-1 Pipe Tamb 4300 2440 7340 3120 7200 3260 6490 3210 6160 3210 5590 3160 4550 2930 6330 2920 6250 3200 6250 3290 7140 3510 6470 3410 5620 3360 6520 2190 6450 2360 6130 2520 5740 2680...
  • Page 78 18.2.2. WH-SD30BE5-1 WH-UD30BE5-1 Pipe Tamb 4500 2500 7800 3500 7650 3650 6900 3600 6550 3600 5950 3550 4850 3300 7100 3200 7000 3500 7000 3600 8000 3850 7250 3750 6300 3700 8400 2700 8300 2900 7900 3100 7400 3300 6950...

  • Page 79: Hydraulic Pump Performance

    18.3. Hydraulic Pump Performance...

  • Page 80: Exploded View And Replacement Parts List

    19 Exploded View and Replacement Parts List 19.1. WH-SD24BE5-1 WH-SD30BE5-1 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 81 <Model: WH-SD24BE5-1 WH-SD30BE5-1> REF. NO. DESCRIPTION & NAME QTY. WH-SD24BE5-1 WH-SD30BE5-1 REMARKS ← BASE PAN CWD521235 ← HOT WATER COIL-COMPLETE CWB90C1017 ← TUBE CONNECTOR-COMPLETE CWT29C1035 ← FLARE NUT (1/4) CWT251063 ← FLARE NUT (5/8) CWT251064 ← FILTER CWB511006 ← PUMP CWB532075 ←...

  • Page 82: Wh-Ud24Be5-1 Wh-Ud30Be5-1

    19.2. WH-UD24BE5-1 WH-UD30BE5-1...
  • Page 84 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 85 <Model: WH-UD24BE5-1, WH-UD30BE5-1> REF. NO. DESCRIPTION & NAME QTY. WH-UD24BE5-1 WH-UD30BE5-1 REMARKS ← BASE PAN ASS’Y CWD52K1224 ← COMPRESSOR DC 280V 5KD240XCC21 ← BUSHING-COMPRESSOR MOUNT CWH50055 ← NUT FOR COMP. MOUNT. CWH561049 ← PACKING CWB811017 ← CONDENSER COMPLETE CWB32C2846 ←...

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