Table of Contents
Advertisement
Remove the gas and liquid
service port caps
Gas service port
<Low pressure>
Liquid service port
<High pressure>
Step 3.3 Evacuating the air
The outdoor unit is loaded with sufficient R-22
refrigerant.
You should evacuate the air in the indoor unit and in the
pipe. If air remains in the refrigerant pipes, it affects the
compressor.It may cause reduction of cooling capacity
and malfunction.
DB68-06031A-01_A5.indd 41
Control box
Remove the screw for the
control box cover
For connecting the
refrigerant pipes
Connect the gas and liquid
refrigerant pipes
CAUTION
• When installing, make sure there is no leakage.
When recovering the refrigerant, ground the
compressor first before removing the connection
pipe. If the refrigerant pipe is not properly connected
and the compressor works with the stop valve open,
the pipe inhales the air and it makes the pressure
inside of the refrigerant cycle abnormally high. It
may cause explosion and injury.
1. Leave the system in the standby mode.
WARNING
• Do not turn on the system! This is necessary for
better vacuum operation (full OPEN position of
Electronic Expansion Valve).
2. Connect the charging hose of the low pressure
side of manifold gauge to a gas service port as
seen in the picture.
3
Valve
15 minutes
4
(Backward owing prevention)
Liquid service port <Low pressure>
5
Liquid service port <High pressure>
Vacuum
Pump
English
41
4/18/2017 9:00:03 AM
Advertisement
Table of Contents
