Haier HSU09 VHG(DB)-G&W Service Manual

Contents

HSU09VHG(DB)-SM Funcitions and Control21Domestic Air Conditioner* After the system enters the separate indoor system operation mode, the indoor system will operateaccording to the set mode and neglect the communication signals of the outdoor system. However, ithas to send signals to the outdoor system.* Quitting condition: This mode can be quitted after receiving the quitting signal from the remotecontrol or urgency system. The indoor system thus can quit the single operation mode.5.1.17 Power cut compensation.* Entering condition: Press dormant button 10 times within 7 second, the buzzer will ring 4 times andthe present system status will be stored into the EEPROM of the indoor system.* After entering the power cut compensation mode, the processing of the indoor system should be asthe followings:Remote control urgency singal: operate according to the remote control and the urgent conditions,the present status will be stored into the EEPROM of the indoor system.* Quitting conditions: Press dormant button 10 times within 7 seconds and the buzzer will ring twice.5.1.18 Fixed frequency operation.1. Fixed cooling: a. under G code condition: high speed cooling, set 16ć, press temperature ‘-‘ keyand the set key at the same time. The system will enter the fixed frequency operation after the buzzerrings twice.b. The proceeding programs are as the follows:Entering the fixed frequency operation, you can set the fixed strength location 1 and send the coolngsignal to the outdoor system. Meanwhile, you can fix the indoor system at high speed mode, thelocation of the airflow directin board can be switched to the maximal position.c. Quitting condition: The fixed frequency cooling can be quitted after receiving the remote signal, andthe system will enter the remote setting status.2. Fixed heating: a. under G code condition: high speed heating, set 30ć, press temperature ‘+‘ keyand the set key at the same time. The system will enter the fixed frequency operation after the buzzerrings twice.b. The proceeding programs are as the follows:Entering the fixed frequency operation, you can set the fixed strength location 1 and send the heatingsignal to the outdoor system. Meanwhile, you can fix the indoor system at high speed mode, thelocation of the airflow directin board can be switched to the maximal position.c. Quitting condition: The fixed frequency heating can be quitted after receiving the remote signal, andthe system will enter the remote setting status.5.1.19 Test programFirst, connect the test program terminal on the mainboard, then connect the system to the powercircuit. The test program will operate as follows.HV series display: The buzzer rings for one time—the signal will be sent to outdoor system for 0.5second— the violet is sent for 0.5-- the background light turns to white—the back ground light turns to