LG ARUB115BT2 Installation Manual - Page 50
Outdoor Unit, HR Unit PCB
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HR Unit PCB 2) Selection of the model of the HR unit 2 1 123 1234 Initial Setting (For 2 rooms) PRHR020A (For 3 rooms) PRHR030A (For 4 rooms) PRHR040A 1 room Connected 2 rooms Connected 3 rooms Connected 4 rooms Connected ❈ Each model is shipped with the switches No.2 and No.3 pre-adjusted as above in the factory. WARNING • If you want to use a PRHR030A for 2 rooms HR unit after closing the 3rd pipes, set the dip switch for 2 rooms HR unit. • If you want to use a PRHR040A for 3 rooms HR unit after closing the 4th pipes, set the dip switch for 3 rooms HR unit. • If you want to use a PRHR040A for 2 rooms HR unit after closing the 3rd and 4th pipes, set the dip switch for 2 rooms HR unit. • The unused port must be closed with a copper cap, not with a plastic cap. 50 Outdoor Unit