LG ARUB076BT2 Installation Manual - Page 53
Flow chart for auto addressing for indoor units and HR units
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HR Unit PCB Flow chart for auto addressing for indoor units and HR units 1) Auto addressing for indoor unit 2) Auto pipe detection 3) Manual pipe detection(Execute in case of Auto pipe detection failure) • Turn off all the indoor units before auto addressing. If indoor unit is operated, auto addressing would not be completed. ENGLISH 1) Auto addressing for indoor unit • The address of indoor units would be set by auto addressing 1) Wait for 3 minutes after applying power supply (Master and Slave Outdoor unit, Indoor unit). 2) Press the switch of the outdoor unit (SW02V) for 5 seconds. 3) A "88" is indicated on 7-segment LED of the outdoor unit PCB. 4) For completing addressing, 2~7 minutes are required depending on numbers of indoor unit connection set. 5) Numbers of inddor unit connection set whose addressing is completed are indicated for 30seconds on 7-segment LED of the oudoor unit PCB. 6) After completing addressing, address of each indoor unit is indicated on the wired remote control display window. (CH01, CH02, CH03, ........ CH06: Indicated as numbers of indoor unit connection set). SW01B SW02B (DIP S/W) (DIP S/W) 7 - Segment SW02V Auto addressing 2) Auto pipe detection • Turn No.1 of SW02M of HR unit PCB off. • Confirm that the setting of No.2, 3 of SW02M corresponds with the number of indoor units. • Reset the power of HR unit PCB • Turn off the No.5 DIP S/W of main unit PCB when outdoor temperature is below 15°C • Turn on the No.5 DIP S/W of main unit PCB when outdoor temperature is over 15°C • Reset the power of outdoor unit. • Wait 3 minuts. • Press SW01V of the outdoor unit main PCB for 5 Seconds. • The number of connected HR unit is displayed. Ex) In case of installing four HR units : 04 • Operated after 88 is displayed on 7-SEG of the outdoor unit main PCB. • Pipe detection proceed. • 5~30 minutes are required depending on the number of the indoor units and outdoor temperature. • The number of the indoor units installed is displayed on 7-SEG of the outdoor unit main PCB for about 1 minute (For a HR unit, the number of the indoor units connected to each HR unit is displayed. • '200' is displayed in case of auto pipe detection error, and auto detection is completed after '88' is disappeared. ❈ Auto pipe detection function : the function that sets connection relationship automatically between the indoor unit and HR unit. Installation Manual 53