Haier H-MRV Series Service Manual

Also see for H-MRV AB092FCBHA: Service manual User manual

Contents

AU482FIBHA: function specification of SW01, SW02, SW04, SW05, SW06, SW07Table 1SW01 SW02 Display of 7 segments LED (LD1,LD2,LD3)0 FFF shows capability overloading (if capability overloading function is chose)Outdoor diagnosis code when without diagnosis code, display: - -1 Outdoor running mode cooling: C heating: H defrosting: J2 Defrosting area set: display 1------shows that L is set at “12”display 2------shows that L is set at “10”display 3------shows that L is set at “8”When the following condition is available, the unit enters into defrosting running:(TE: defrosting temp., TA: ambient temp.)TE≤C×TA－αNote：C：TA＜0℃，C=0.8TA≥0℃，C=0.6The value of α can be set according to the selection of jump wiring:selection of jump wiring L M Hα(℃) 12e 10e 8e4 INV command frequency（decimalism） e.g.120 stands for 120HZ5 INV receiving frequency（decimalism） e.g. 84 stands for 84HZ6 Quantity of indoor units connected（decimalism） e.g. 6 stands for 6 indoor units7 Back up running: TS sensor: 1 , TE sensor: 1This function is preset and not available.8 Back up running: TA sensor: 1 , mid-section temp. sensor: 1This function is preset and not available.9 Back up running: PD sensor: 1 , PS sensor: 1This function is preset and not available.13 Display compensation of capacity class: 4------class 4, 6-----class 6After the start-up of system is over, the frequency of compressor has gotten thetarget frequency confirmed by the request of indoor unit capacity for 5 minutes,and then the unit will modulate the capacity.(Note: class 4 and class 6 can be selected. Class 4 is that the capacity classwhose range is from 4 classes higher to 3 classes lower than the target frequency.Class 6 is that the capacity class whose range is from 6 classes higher to 4classes lower than the target frequency. For the unit without pressure sensors,there is no this function.)14 Display “U” shows that indefinite capacity is choseDisplay “d” shows that definite capacity is chose (indoor total capacity can’t beover 130%）015 Display o1-----stands for HPDisplay o2-----stands for HPDisplay H1-----shows that can be connected with central communication0 TD sensor data（decimalism）1 TA sensor data（decimalism）2 TS sensor data（decimalism）3 TE sensor data（decimalism）4 Mid-section of coil pipe sensor data (decimalism)5 Pd sensor data（display corresponding saturation temperature）6 Ps sensor data（display corresponding saturation temperature）7 Opening degree of outdoor PMV1（decimalism）8 Opening degree of outdoor PMV2（decialism）9 2-way valve switched on: SV ON： 1，no switched on: --110 Outdoor running current (decimalism) -135-