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. •...
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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.
2 Specifications 2.1. WH-SDC07C3E5 WH-UD07CE5-A Item Unit Outdoor Unit Performance Test Condition EUROVENT Cooling Capacity 6.00 BTU/h 20500 kcal/h 5160 2.61 kcal/hW Heating Capacity 7.00 BTU/h 23900 kJ/h 25200 4.40 BTU/hW 15.0 Noise Level dB (A) Cooling: 48 Heating: 48...
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Item Unit Input Power Cooling: 2.30 Heating: 1.59 Maximum Input Power For Heat Pump System 4.59 Maximum Input Power For Internal Heater 3.00 (6.00) (Internal Heater + Tank Heater) Starting Current 7.30 Running Current Cooling: 10.40 Heating: 7.30 Maximum Current For Heat Pump System 21.0 Maximum Current For Internal Heater 13.0 (26.0)
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• Heating capacities are based on outdoor air temperature of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb) with controlled indoor water inlet temperature of 30°C and water outlet temperature of 35°C. • Specification are subjected to change without prior notice for further improvement.
2.2. WH-SDC09C3E5 WH-UD09CE5-A Item Unit Outdoor Unit Performance Test Condition EUROVENT Cooling Capacity 7.00 BTU/h 23900 kcal/h 6020 2.41 kcal/hW Heating Capacity 9.00 BTU/h 30700 kJ/h 32400 4.10 BTU/hW 14.0 Noise Level dB (A) Cooling: 50 Heating: 49 Power Level dB Cooling: 68 Heating: 67 Air Flow...
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Item Unit Maximum Input Power For Internal Heater 3.00 (6.00) (Internal Heater + Tank Heater) Starting Current 10.10 Running Current Cooling: 13.10 Heating: 10.10 Maximum Current For Heat Pump System 22.9 Maximum Current For Internal Heater 13.0 (26.0) (Internal Heater + Tank Heater) Power Factor Cooling: 96 Heating: 95...
2.3. WH-SDC12C6E5 WH-UD12CE5-A Item Unit Outdoor Unit Performance Test Condition EUROVENT Cooling Capacity 10.00 BTU/h 34100 kcal/h 8600 2.78 kcal/hW 2.39 Heating Capacity 12.00 BTU/h 41000 kJ/h 43200 4.67 BTU/hW 16.0 Noise Level dB (A) Cooling: 50 Heating: 50 Power Level dB Cooling: 68 Heating: 67 Air Flow...
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Item Unit Maximum Input Power For Internal Heater 6.00 (9.00) (Internal Heater + Tank Heater) Starting Current 11.7 Running Current Cooling: 16.1 Heating: 11.7 Maximum Current For Heat Pump System 24.0 Maximum Current For Internal Heater 26 (39) (Internal Heater + Tank Heater) Power Factor Cooling: 97 Heating: 96...
2.4. WH-SDC14C6E5 WH-UD14CE5-A Item Unit Outdoor Unit Performance Test Condition EUROVENT Cooling Capacity 11.50 BTU/h 39200 kcal/h 9890 2.61 kcal/hW 2.24 Heating Capacity 14.00 BTU/h 47800 kJ/h 50400 4.50 BTU/hW 15.4 Noise Level dB (A) Cooling: 52 Heating: 51 Power Level dB Cooling: 70 Heating: 68 Air Flow...
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Item Unit Maximum Input Power For Internal Heater 6.00 (9.00) (Internal Heater + Tank Heater) Starting Current 14.1 Running Current Cooling: 19.7 Heating: 14.1 Maximum Current For Heat Pump System 25.0 Maximum Current For Internal Heater 26 (39) (Internal Heater + Tank Heater) Power Factor Cooling: 97 Heating: 96...
2.5. WH-SDC16C6E5 WH-UD16CE5-A Item Unit Outdoor Unit Performance Test Condition EUROVENT Cooling Capacity 12.20 BTU/h 41600 kcal/h 10490 2.54 kcal/hW 2.19 Heating Capacity 16.00 BTU/h 54600 kJ/h 57600 4.23 BTU/hW 14.4 Noise Level dB (A) Cooling: 54 Heating: 53 Power Level dB Cooling: 72 Heating: 70 Air Flow...
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Item Unit Maximum Input Power For Internal Heater 6.00 (9.00) (Internal Heater + Tank Heater) Starting Current 17.1 Running Current Cooling: 21.5 Heating: 17.1 Maximum Current For Heat Pump System 26.0 Maximum Current For Internal Heater 26 (39) (Internal Heater + Tank Heater) Power Factor Cooling: 97 Heating: 96...
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 (UD07CE, UD09CE) - Long piping up to 40 meter with height difference 30 meter (UD12CE, UD14CE and UD16CE) - Flexible 4-way piping for outdoor unit •...
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) UD07CE5-A 5/8” 1/4” UD09CE5-A 5/8” 1/4” UD12CE5-A 5/8” 3/8” UD14CE5-A 5/8” 3/8” UD16CE5-A 5/8” 3/8” * If piping length is over common length, additional refrigerant should be added as shown in the table.
11 Installation Instruction WH-UD07CE5-A WH-UD09CE5-A 11.1. Select The Best Location Piping size Rated Min. Max. Addi- INDOOR UNIT Length Eleva- Piping Piping tional • There should not be any heat source or steam near the unit. Model tion Length Length Refrige- Liquid •...
11.3. Indoor Unit 11.3.3. INDOOR UNIT INSTALLATION 11.3.3.1. Install The Indoor Unit 11.3.1. HOW TO FIX INSTALLATION PLATE 1. When connecting solar pump station cable between The mounting wall is strong and solid enough to prevent it from indoor unit and solar pump station, the distance between vibration.
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connect water outlet connector of indoor unit (indicate with 3. Connect the piping: “WATER OUT”) to boiler tank inlet. Fail to connect the tube • Align the center of piping and sufficiently tighten the flare appropriately might causing the indoor unit malfunction. nut with fingers.
• Do not insert this hose into sewage hose or cleaning hose that may generate ammonia gas sulfuric gas etc. • If necessary, use hose clamp to further tighten the hose at drain hose connector to prevent it leakage. • The water may drip from drain hose. Therefore must ensure the outlet of the hose is always not closed or blocked.
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12. Solar Pump Station’s cable shall be (2 × min 0.5 mm ), of double insulation PVC-sheathed or rubber-sheathed cable. Strongly recommended install with maximum length of 10 meter only. Terminal screw Tightening torque N cm {kgf•cm} 157~196 {16~20} 196~245 {20~25} 11.3.4.1.
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828.38kW (for WH-SDC07C3E5/UD07CE5** and WH-SDC09C3E5/UDH09CE5**) 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 828.38kW.
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.
11.4.3. EVACUATION OF THE EQUIPMENT WHEN INSTALLING AN AIR-TO-WATER HEAT PUMP, 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. •...
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 cable and cord together with the binding strap so that they do not touch other parts such as the compressor and bare copper pipes.
12 Installation Instruction WH-UD12CE5-A WH-UD14CE5-A WH-UD16CE5-A 12.1. Select The Best Location Piping size Rated Min. Max. Addi- INDOOR UNIT Length Eleva- Piping Piping tional • There should not be any heat source or steam near the unit. Model tion Length Length Refrige- Liquid...
12.3. Indoor Unit 12.3.3. INDOOR UNIT INSTALLATION 12.3.3.1. Install The Indoor Unit 12.3.1. HOW TO FIX INSTALLATION PLATE 1. When connecting solar pump station cable between The mounting wall is strong and solid enough to prevent it from indoor unit and solar pump station, the distance between vibration.
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with “WATER IN”). spanner or ring wrench. • Connect the external filter inlet to boiler tank outlet. Then, 3. Connect the piping: connect water outlet connector of indoor unit (indicate with • Align the center of piping and sufficiently tighten the flare “WATER OUT”) to boiler tank inlet.
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direction and in a frost-free environment. • Guides this hose’s outlet to outdoor only. • Do not insert this hose into sewage hose or cleaning hose that may generate ammonia gas sulfuric gas etc. • If necessary, use hose clamp to further tighten the hose at drain hose connector to prevent it leakage.
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12. Solar Pump Station’s cable shall be (2 × min 0.5 mm ), of double insulation PVC-sheathed or rubber-sheathed cable. Strongly recommended install with maximum length of 10 meter only. Terminal screw Tightening torque N•cm {kgf•cm} 157~196 {16~20} 196~245 {20~25} 12.3.4.1.
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12.3.4.2. Connecting Requirement • The equipment's power supply 1 complies with IEC/EN 61000-3-12 provided that the short-circuit power S is greater than or equal to 787.57kW (for WH-SDC12C6E5/UD12CE5**, WH-SDC14C6E5/UD14CE5** and WH-SDC16C6E5/UD16CE5**) 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 787.57kW.
12.4. Outdoor Unit 12.4.1. 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.
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CUTTING AND FLARING THE PIPING 1. Please cut using pipe cutter and then remove the burrs. 2. 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. 3.
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12.4.4. CONNECT THE CABLE TO THE OUTDOOR UNIT (FOR DETAIL REFER TO WIRING DIAGRAM AT UNIT) 1. Remove the control board cover from the unit by loosening the screw. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 × (4.0 or 6.0 mm flexible cord, type designation 60245 IEC 57 or heavier cord.
13 Operation and Control 13.1. 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.
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13.1.4. Cool Mode Operation 1. 3 ways valve control: • 3 ways valve switch and fix to room side. 2. Heat pump operate follow normal cooling operation. 3. Backup heater DOES NOT operate during cool mode. 4. Solar 3 way valve operates follow solar operation specification. 5.
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13.1.5. Cool + Tank Mode Operation 13.1.6. Tank Mode Operation Control contents: • 3 ways valve direction - 3 ways valve switch and fix to tank side. • Heat Pump Thermostat characteristic - Water set temperature = tank set temperature or [55°C] whichever lower. - Heat Pump Water Outlet set temperature is set to Maximum (55°C) at tank mode i.
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ii. Case 2 - Heat pump THERMO OFF TEMP: 1. Heat pump THERMO OFF TEMP = 55°C + [+2°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.
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Solar Priority is Set Solar Priority is Not Set...
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13.1.7. Heat + Tank Mode Operation Setting 1:- When Heating priority is set by control panel: 1. 3 ways valve control: • 3 ways valve switch and fix to room side. 2. Heat pump operation control:- • Heat pump operate follow normal operation 3.
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Case 2: • Heat pump THERMO OFF TEMP: 1. Heat pump THERMO OFF TEMP = 55°C + [+2°C]. 2. Water outlet temperature > Heat pump THERMO OFF TEMP for continuous 90 seconds, switch 3 ways valve to room side. End Tank heat-up interval and start count heating heat-up interval. •...
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Heat + Tank (Heating No Priority) (Solar Priority Set)
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Heat + Tank (Heating No Priority) (Solar Priority Not Set)
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13.1.8. Setting Water Outlet Temperature For Heat Mode • The set temperature define the parameters for the outdoor ambient temperature dependent operation of the unit. Where by the internal water setting temperature is determined automatically depending on the outdoor temperature. The colder outdoor temperatures will result in warmer water and vice versa.
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13.1.8.1. Heating Mode Operation Time Chart Exp: 1. 3 ways valve control: • 3 ways valve switch and fix to room side. 2. Heat pump operate follow normal heating operation. 3. Backup heater operate follow normal operation. 4. Solar 3 way valve operates follow solar operation specification 5.
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13.1.9. Water Temperature Thermo Shift Setting • Switchs are ignored during “PUMPDW” = ON. • Switchs are ignored during “STATUS” = ON. • “ ”, “ ”, “SELECT” switch are ignored if “SETTING” = OFF. • “CANCEL” switch is ignored if “SETTING” = OFF & “STATUS” = OFF. •...
13.2. Water Pump 13.2.1. Water Pump Control 1. Once the indoor unit is ON, the water pump will be ON immediately and no error judgement for 9 minutes. However, during this 9 minutes operation, if there is any abnormality cause at outdoor or malfunction, the compressor should be OFF immediately and restart delay after 3 minutes.
13.5. Force Heater Mode Operation The backup heater also serves as backup in case of malfunctioning of the outdoor unit. 1. Make sure the OFF/ON control panel LED is OFF (no operation). 2. Press the Force button to start the force heater mode operation. 3.
13.8. 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. 13.9. Indoor Back-Up Heater Control 13.9.1. Indoor Electric Heater control 1. Normal Heating Mode •...
13.10. Tank Booster Heater Control 13.10.1. 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). •...
13.13. Quiet Operation • Purpose: - To provide quiet operation compare to normal operation by reduces outdoor unit noise. • Starting condition: 1. When quiet button is presses. 2. When quiet request ON time by weekly timer (Refer to control panel.) •...
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When solar priority is NOT SET 1. Operation condition: • Solar pump operates if all of the following conditions are fulfilled:- i) Power On. (regardless operation ON or OFF) ii) There is operation request from Solar pump station. iii) Tank hot water temp is below solar on upper limit temp [EEPROM 1 : 70]°C. iv) Heat pump thermo OFF in tank mode OR Heat pump operate to room side.
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(Solar Priority Not Set) Heat + Tank Mode (Heating Priority Set)
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Tank Mode (Solar Priority Set) (Solar Priority Not Set)
13.15. External Room Thermostat Control (Optional) Purpose: • Better room temperature control to fulfil different temperature request by external room thermostat. Recommended external room thermostat: Maker Characteristic Siemem (REV200) Touch panel Siemem (RAA200) Analog Connection external room thermostat: Wire Connection and thermo characteristic of Siemen REV200: Setting L / L1 (H) Heat Thermo...
13.16. Two ways valve control Functionality of 2 ways valve: • Use to allow hot water to floor heating panel or block cold water to floor heating panel. Control contents: 1. When indoor running in heat mode, OPEN the 2 ways valve. 2.
14 Protection Control 14.1. Protection Control For All Operations 14.1.1. Time Delay Safety Control 1. The compressor will not start for three minutes after stop of operation. 14.1.2. 30 Seconds Forced Operation 1. Once the compressor starts operation, it will not stop its operation for 30 seconds. 2.
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14.1.6. 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. 14.1.7. Low Frequency Protection Control 2 • When all the below conditions comply, the minimum compressor frequency will change to lower frequency. Temperature, T, for: Heating Cooling...
14.2. Protection Control For Heating Operation 14.2.1. 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. 14.2.2. Deice Operation When outdoor pipe temperature and outdoor air temperature is low, deice operation start where outdoor fan motor stop. 14.3.
15 Servicing Mode 15.1. 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.
16 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.
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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.
17 Troubleshooting Guide 17.1. 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.
17.2. Relationship Between The Condition Of The Air-to-Water Heatpump Indoor And Outdoor Units And Pressure And Electric Current Heating Mode Cooling Mode Condition of the Air-to-Water Heatpump Low Pressure High Pressure Electric current Low Pressure High Pressure Electric current indoor and during operation during operation outdoor units...
17.3. Breakdown Self Diagnosis Function 17.3.1. 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. •...
17.4. 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.
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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.
17.5. Self-diagnosis Method 17.5.1. 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.
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17.5.2. 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.
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17.5.3. 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.
17.5.4. 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.
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17.5.5. 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.
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17.5.6. 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.
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17.5.7. 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.
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17.5.8. 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.
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17.5.9. Indoor-Control Panel Communication Abnormality (H76) Malfunction Decision Conditions: During standby and operation of cooling and heating, indoor-control panel error occur. Malfunction Caused: 1. Faulty connector connection. 2. Faulty control panel. 3. Faulty indoor unit PCB (main).
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17.5.10. 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.
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17.5.11. 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.
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17.5.12. 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).
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17.5.13. Outdoor High Pressure Protection (H98) Malfunction Decision Conditions: During operation of heating, when pressure 4.0MPa and above is detected by outdoor high pressure sensor. Malfunction Caused: 1. Faulty water pump. 2. Insufficient water flow rate in system. 3. Water leak in system. 4.
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17.5.14. 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.
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17.5.15. 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.
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17.5.16. 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.
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17.5.17. 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.
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17.5.18. 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.
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17.5.19. 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.
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17.5.20. 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.
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17.5.21. 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.
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17.5.22. 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.
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17.5.23. 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.
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17.5.24. 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.
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17.5.25. 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.
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17.5.26. 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.
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17.5.27. 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.
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17.5.28. 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.
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17.5.29. 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.
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17.5.30. 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.
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17.5.31. 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.
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17.5.32. 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.
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17.5.33. 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.
18 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. 18.1.
19 Technical Data 19.1. Operation Characteristics 19.1.1. WH-SDC07C3E5 WH-UD07CE5-A 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...
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Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
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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...
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Cooling Characteristics at Different Piping Length Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
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19.1.2. WH-SDC09C3E5 WH-UD09CE5-A 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...
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Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
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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...
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Cooling Characteristics at Different Piping Length Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
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19.1.3. WH-SDC12C6E5 WH-UD12CE5-A 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...
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Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
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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...
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Cooling Characteristics at Different Piping Length Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
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19.1.4. WH-SDC14C6E5 WH-UD14CE5-A 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...
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Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
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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...
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Cooling Characteristics at Different Piping Length Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
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19.1.5. WH-SDC16C6E5 WH-UD16CE5-A 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...
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Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
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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...
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Cooling Characteristics at Different Piping Length Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7m...
20 Exploded View and Replacement Parts List 20.1. WH-SDC07C3E5 WH-SDC09C3E5 WH-SDC12C6E5 WH-SDC14C6E5 WH-SDC16C6E5 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.
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<Model: WH-SDC07C3E5 WH-SDC09C3E5 WH-SDC12C6E5 WH-SDC14C6E5 WH-SDC16C6E5> REF. DESCRIPTION & NAME QTY. REMARKS SDC07C3E5 SDC09C3E5 SDC12C6E5 SDC14C6E5 SDC16C6E5 ← ← ← ← BASE PAN CWD521279 ← ← ← HOT WATER COIL-COMPLETE CWB90C1043 CWB90C1051 ← ← ← ← RECEIVER CWB141039 ← ←...
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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.
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<Model: WH-UD07CE5-A WH-UD09CE5-A> REF. NO. DESCRIPTION & NAME QTY. WH-UD07CE5-A WH-UD09CE5-A REMARKS ← BASE PAN ASS’Y CWD52K1199 ← COMPRESSOR DC 280V 5KD240XCC21 ← BUSHING-COMPRESSOR MOUNT CWH50055 ← NUT FOR COMP. MOUNT. CWH561049 ← PACKING CWB811017 ← CONDENSER COMPLETE CWB32C2846 ← CRANKCASE HEATER (COMPRESSOR) CWA341043 ←...
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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.
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REF. NO. DESCRIPTION & NAME QTY. WH-UD12CE5-A WH-UD14CE5-A WH-UD16CE5-A REMARKS ← ← EXPANSION VALVE CWB051028 ← ← ELECTRO MAGNETIC SWITCH K6C1AYY00003 (Note) • All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488). • “O” marked parts are recommended to be kept in stock. [PHAAM] Printed in Malaysia SSYW1004 - 00...