LG ARUN038GS2 Installation Manual page 55

2) Selection of the model of the HR unit
(For 2 rooms)
PRHR020A
Initial
Setting
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 PRHR030A 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.
2
1
(For 3 rooms)
PRHR030A
3
2
1
(For 4 rooms)
PRHR040A
Installation Manual 55
HR Unit PCB
4
3
1 2