LG multi v Installation Manual page 69

3) Selection of the model of the HR unit
(For 2 branches)
PRHR021A
Initial
Setting
1 branches
Connected
2 branches
Connected
3 branches
Connected
4 branches
Connected
* Each model is shipped with the switches No.2 and No.3 pre-adjusted as above in the factory.
! CAUTION
• If you want to use a PRHR031A for 2 branches HR unit after closing the 3rd pipes, set the dip
switch for 2 branches HR unit.
• If you want to use a PRHR041A for 3 branches HR unit after closing the 4th pipes, set the dip
switch for 3 branches HR unit.
• If you want to use a PRHR041A for 2 branches HR unit after closing the 3rd and 4th pipes, set
the dip switch for 2 branches HR unit.
• The unused port must be closed with a copper cap, not with a plastic cap.
2
1
(For 3 branches)
PRHR031A
3
2
1
(For 4 branches)
PRHR041A
HR UNIT PCB
69
4
3
1 2