LG MULTIV III - Page 22

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Copyright ©2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3) Selection of the model of the HR unit
HR Unit PCB
❈ 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 PRHR031/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 PRHR041/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 PRHR041/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.
(For 2 branches)
PRHR021/PRHR021A
(For 3 branches)
PRHR031/PRHR031A
(For 4 branches)
PRHR041/PRHR041A
Initial
Setting
1 branches
Connected
2 branches
Connected
3 branches
Connected
4 branches
Connected
1
2
3
1
2
1
3
2
4