Refrigerant Refill - Samsung ACH1800E Technical Manual

3
INSTALLATION
Refrigerant Refill Procedure
3-6. Refrigerant Refill Procedure

3-6-1. Refrigerant Refill

G Refill the air-conditioner with refrigerant when the refrigerant has leaked during the installing or using.
Turn the suction valve clockwise to close,
connect the pressure gauge(low pressure side)
1
to the service valve, and open the suction
valve again.
2 Connect the tank to refill with Refrigerant
Set the unit to cool operation mode.
3
Check the pressure indicated by the pressure
gauge(low pressure side).
4
* Standard pressure should be 4.5~5.5kg/cm
in a regular, operation mode.
Open the refrigerant tank and fill with refrigerant
until the rated pressure is reached.
5
* It is recommended not to pour the refrigerant in
too quickly, but gradually while operating a pres-
sure valve.
6 Stop operation of the air conditioner.
Close the suction valve, disconnect the
7 pressure gauge, and open the suction
valve again.
8 Close the cap of each valve.
42 | SAMSUNG
M
M
M
2
M
M
M
M
For mounting
Suction
Liquid
other and of
Valve
Valve
hose when
not in use
3-way valve
CAUTION
• You must not add the R407C refrigerant
without purging and vacuum procedure.
Suspension hook
High
pressure
gauge
Hand
wheel
Finger tight
fittings
Connected to
high pressure
side
Charging
line