Haier H-MRV Series Service Manual
Also see for H-MRV AB092FCBHA: Service manualUser manual
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Below we will comment for the functions of some ports and some changes of PCB0010451530 and 0010451531:1. Control Board 0010451530Herein, the control board we are concerned is the board without CPU. Functions for every port are asfollows:CN301: port for power supply, connected with CN202 of the power board.CN302: connected to testing board.CN303: connected to the computer serial port through the testing device.CN304: HBUS communication port.CN305: the driving port for relay, connected to CN203 of the power board.CN306: the driving port for IPM, connected to CN105 of the power board.CN307, CN308: port for the heat-emitting fan. No used at present.CN309: port for the main relay and for testing current, connected to CN104 of the power board.CN310: the driving port for electronic expansion valve.CN311: testing port for the radiator temperature. No used at present.CN312: testing port for the coil temperature Tt.CN313: testing port for the defrosting temperature Te.CN314: testing port for the outdoor ambient temperature Ta.CN315: testing port for the suction temperature Ts.CN316: testing port for the discharging temperature Td.CN317: port for the signal of compressor overheat protection initially,but now for low pressure switch.CN318: port for the signal of high/low pressure protection,but now only for high pressure switch.Control board 1 Control board 2 Control board 3Totally there are 3 types of control board, because they have different appearance, you will distinguish themmuch easier.Control board 1 is the earliest edition, because this board is rather big and it will cover the fixing screwwhich supports the electric control box, also taken into consideration the convenient installation and service,we modified and designed the Control board 2.Control board 2 is the second edition, because there are electric parts on both sides of this board, and-149- |
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H-MRV AB092FCBHAH-MRV AB142FCBHAH-MRV AB182FCBHAH-MRV AC142FCBHAH-MRV AC182FCBHAH-MRV AE072FCBKAH-MRV AE092FCBKAH-MRV AE122FCBKAH-MRV AE142FCBKAH-MRV AE182FCBKAH-MRV AE242FCBKAH-MRV AF092FCBHAH-MRV AF122FCBHAH-MRV AP182FABHAH-MRV AS072FCBHAH-MRV AS092FCBHAH-MRV AS122FCBHAH-MRV AS142FCBHAH-MRV AS182FCBHAH-MRV AU24FHBHAH-MRV AU482FIBIAH-MRV AU48NFIBIAH-MRV Series
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