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TOSHIBA HWS-1402H-E DATA BOOK (21358 ko)
Manual abstract: user guide TOSHIBA HWS-1402H-ESERVICE MANUAL
Detailed instructions for use are in the User's Guide.
[. . . ] A09-002
AIR TO WATER HEAT PUMP
SERVICE MANUAL
Model name:
Hydro Unit
HWS-802XWHM3-E HWS-802XWHT6-E HWS-1402XWHM3-E HWS-1402XWHT6-E HWS-1402XWHT9-E
Outdoor Unit
HWS-802H-E HWS-1102H-E HWS-1402H-E
Hot Water Cylinder
HWS-1501CSHM3-E(-UK) HWS-2101CSHM3-E(-UK) HWS-3001CSHM3-E(-UK)
Contents
1 SAFETY PRECAUTIONS . 6
2-1. Safety During Installation and Service . 7 2-2-2. Processing of piping materials . 28 6-4. Water Heat Exchange Control Board . [. . . ] Defect in the current detection circuit
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1. Defect of compressor (lock) Replace the compressor. Defect of compressor wiring (open phase). Replace the outdoor inverter control board.
8
92
H03
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8
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70
Diagnostic functional operation Check code Operational cause Backup Automat present ic reset Determination and action
Number of abnormalities Detailed for item confirmation
Operation of case thermostat When the case thermostat exceeds 125°C. Check the refrigeration cycle (gas leak). Check the case thermostat and connector. Check that the service valve is fully open. Cut J800-J803.
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92
L10
Unset service PC board jumper Jumpers J800-J803 have not been cut. The communication between the outdoor PC board MUCs error No communication signal between IPDU and CDB. The outlet temperature error When the discharge temperature sensor (TD) exceeds 111°C.
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1
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L29
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1. Replace the outdoor control board.
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P03
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1. Check the refrigeration cycle (gas leak). Check the resistance value of the discharge temperature sensor (TD).
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P04 P05
The high pressure switch error The power supply voltage error When the power supply voltage is extremely high or low. Overheating of heat-sink error When the heat-sink exceeds 105°C.
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10 1. Check the thread fastening and heat-sink grease between the outdoor control board and the heatsink. Check the resistance value of the heat-sink temperature sensor (TH). Check the refrigeration cycle (gas leak). Check that the service valve is fully open. Check the resistance value of the discharge temperature sensor (TD) and the suction temperature sensor (TS). Check the operation of the 4-way valve unit or the coil characteristics. Check the resistance value of the heat exchange temperature sensor (TE) and the suction temperature sensor (TS). 4
94 94
P07
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P15
Detection of gas leak When the discharge temperature sensor (TD) exceeds 106°C for consecutive 10 min. [. . . ] Power source measurement (No-load voltage) 3. Refrigerant leakage/ Water leakage inspection 5. Water heat exchanger inspection (Internal dirt and clogging) 6. Inlet/ Outlet water temperature measurement 7. [. . . ]
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TOSHIBA HWS-1402H-E DATA BOOK (21358 ko)
