Samsung AM JXVAF Series Installation Manual page 75

Open the gas side and liquid side service valve completely after charging the refrigerant. (If you operate the air
conditioner with the service valve closed, the important parts may be damaged.)
CAUTION
Put on safety equipment when charging refrigerant.
Do not charge the refrigerant when you adjust or control other product such as indoor units or EEV kits.
If you charge the refrigerant with the front cabinet open, be very careful with the fan on the top of the product
to prevent personal injury.
When the ambient temperature is low in winter time, do not heat the refrigerant container to speed up the
charging process. There is risk of explosion.
Beware for possibility of refrigerant leakage when you connect the manifold gauge to the charging port for
heating.
Close the valve of the refrigerant container immediately after charging the refrigerant. If not, there might be a
change in entire amount of refrigerant.
Using service valve for gas
After charging the refrigerant, close all caps as shown in the illustration.
Tightening torque for the cap of refrigerant charging port 10~12N·m
(7.4 ~ 8.9 lbf·ft)
Tightening torque for the cap of control part 20~25N·m (14.8 ~ 18.4
lbf·ft)
Opening/closing torque for the valve
- Over Ø19.05mm (Ø3/4inch) : 10 N·m (7.4 lbf·ft)
Cap for the control part
Cap for the refrigerant
charging port
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