LG Multi V PRHR042A Installation Manual page 38

38
3 Series
1
2
PRHR023A
1 branch
Connected
2 branch
Connected
3 branch
Connected
4 branch
Connected
5 branch
Connected
6 branch
Connected
7 branch
Connected
8 branch
Connected
1
2
3
4
5
6
PRHR063A
1 branch
Connected
2 branch
Connected
3 branch
Connected
4 branch
Connected
5 branch
Connected
6 branch
Connected
7 branch
Connected
8 branch
Connected
WARNING
!
If you want to use a "Model" for "No. of using branch(es)" HR
Unit after closing the "Closing pipe No.", set the DIP switch for
"No. of using branch(es)" HR Unit.
Ex) If you want to use a PRHR083A for 4 branches HR Unit after
closing the 5~8th pipes, set the DIP switch for 4 branches HR
Unit.
1
1
2
2 3
3 4
PRHR033A PRHR043A
1
2
3
4
5
6
7
8
PRHR083A
4
Setting the Valve Group.
2 Series
DIP S/W setting
Not control
No.1, 2 Valve
Control
No.2, 3 Valve
Control
No.3, 4 Valve
Control
No.1, 2 Valve
/
No.3, 4 Valve
Control
* Setting the Valve Group
This function is used to connect one indoor unit to two pipes. (Large
capacity indoor unit over 56 kBtu must be connected to two pipes.)
NOTE
!
If the large capacity indoor units are installed, below Y branch pipe
should be used.
Y branch pipe
* For more information, refer accessory installation manual.
Models Low pressure Gas pipe
I.D 22.2 I.D 19.05 I.D 15.88
I.D 25.4
ARBLN
O.D 19.05
I.D 28.58
03321
I.D 15.88
I.D 25.4 O.D 19.05
O.D 19.05
I.D 22.2
I.D 22.2
Example
4
Indoor Unit
3
Indoor Unit
2
Indoor Unit
1
Indoor Unit
4 Indoor Unit
3
Indoor Unit
2
Large capacity indoor unit
1
4
Indoor Unit
3
Indoor Unit
2
Large capacity indoor unit
1
4
Large capacity indoor unit
3
Indoor Unit
2
Indoor Unit
1
4
Large capacity indoor unit
3
2
Large capacity indoor unit
1
(Unit: mm [inch])
Liquid pipe
I.D 19.05
I.D 9.52
I.D 9.52
I.D 12.7
I.D 12.7
I.D 12.7
I.D 12.7
I.D 19.05
I.D 9.52
I.D 12.7
I.D 6.35
I.D 6.35