Loading ...
Loading ...
Loading ...
34
REFRIGERANT PIPING INSTALLATION
ENGLISH
Installation of Outdoor Unit, HR Unit and Indoor Unit Refriger-
ant Pipe
3 pipes are connected to the HR unit from the outdoor unit, classified into liquid pipe, low pres-
sure gas pipe and high pressure gas pipe depending on status of refrigerant passing through the
pipe.
You must connect 3 pipes from outdoor unit to HR unit.
For connection between indoor unit and HR unit, you must connect both liquid pipe and gas pipe
from the HR unit to the indoor unit. In this case, connect them to the indoor unit starting from
No.1 connection port of the HR unit (the port number is displayed on ports of the HR unit). Use
auxiliary flare as annexed parts in connection to the indoor unit.
Gas pipe
Gas pipe
Liquid pipe
Liquid pipe
HR Unit
1
2
3
4
Low pressure
Gas pipe
Liquid pipe
High pressure
Gas pipe
Whenever connecting the indoor units with the HR unit, install the indoor units in numerical order
from No.1.
Ex) In case of installing 3 indoor units : No. 1, 2, 3 (O), No. 1, 2, 4 (X), No.1, 3, 4 (X), No.2, 3, 4 (X).
CAUTION
!
Gas pipe Ø15.88 (5/8)
Liquid pipe Ø9.52 (3/8)
Brazing Type
Liquid pipe
Liquid pipe
Low pressure gas pipe
Low pressure gas pipe
High pressure gas pipe
High pressure gas pipe
Liquid pipe
Low pressure gas pipe
High pressure gas pipe
(Brazing Type)
WARNING
Before brazing work, remove gas in the HR Unit by cutting the three pipes in the small circles on
the figure.
If not, it may cause injuries.
Remove the caps before connecting pipes.
!
Loading ...
Loading ...
Loading ...