User manual TOSHIBA HWS-803XWHT9-E SERVICE MANUAL

[. . . ] A10-006 AIR TO WATER HEAT PUMP SERVICE MANUAL Model name: Hydro Unit HWS-803XWHM3-E(TR) HWS-803XWHT6-E(TR) HWS-803XWHD6-E HWS-803XWHT9-E HWS-1403XWHM3-E(TR) HWS-1403XWHT6-E(TR) HWS-1403XWHD6-E HWS-1403XWHT9-E(TR) Outdoor Unit HWS-803H-E(TR) HWS-1103H-E(TR) HWS-1403H-E(TR) HWS-1103H8-E HWS-1103H8R-E HWS-1403H8-E HWS-1403H8R-E HWS-1603H8-E HWS-1603H8R-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 . 22 5-2. Outdoor Unit (Single phase Type) . [. . . ] The outlet temperature error When the discharge temperature sensor (TD) exceeds 111°C. O × × 1 111 L29 O 1. Replace the outdoor control board. 1 111 P03 O × × × 1. Check the refrigeration cycle (gas leak). Check the resistance value of the discharge temperature sensor (TD). 4 112 P04 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. O 10 1. (AC220-230 V±10 %: single phase type). (AC380-400 V±10 %: 3 phase type). 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). 113 P05 O 4 114 P07 O × 4 114 P15 Detection of gas leak When the discharge temperature sensor (TD) exceeds 106°C for consecutive 10 min. When the suction temperature sensor (TS) exceeds 60°C for cooling or 40°C for heating for 10 consecutive min. O × 4 115 P19 The 4-way valve inversion error When the heat exchange temperature sensor (TE) exceeds 30°C or the suction temperature sensor (TS) exceeds 50°C during the heat pump operation. O × 4 116 88 Diagnostic functional operation Check code Operational cause Backup Automat present ic reset Determination and action Number of abnormalities Detailed for item confirmation P20 High pressure protection operation When an abnormal stop occurs due to the high pressure release control. When the heat exchange temperature sensor (TL) detects 63°C during the cooling operation. When the water outlet sensor (TWO) detects 60°C during the heating or hot water supply operation. Outdoor fan system error When a DC fan rotor position detection NG, element short circuit, loss of synchronization, or abnormal motor current occurs. O × 1. Check that the service valve is fully open. Check the outdoor fan system (including clogging). Check the resistance value of the heat exchange temperature sensor (TL) and the water outlet temperature sensor (TWO). Check the connection of the fan motor cable connector. [. . . ] Operation frequency (Outdoor unit operation check) 4. Air heat exchanger inspection (Dirt and clogging) 6. Cycle parts (Compressor, 4-way valve, Pulse motor valve) 8. Inverter control board, Terminal block Frequency Annually Annually Periodic inspection details Insulation measurement with a mega tester Electronic voltage measurement: 220-230V ±10% (Single phase type) 380-400V ±10% (3 phase type) Frequency check by rated operation (See 10-13) Visual inspection and check connection with a leak tester: No leakage must be found Visual inspection, Clear clogging Check for scratches or damages to the fan or abnormal motor sound Operation check by trial run Check for loose connector and connecting terminal Annually Annually Annually Annually Annually Annually Annually Hot water cylinder (HWS-150CSHM3-E(-UK), 210CSHM3-E(-UK), 300CSHM3-E(-UK)) 1. [. . . ]