Samsung AM AXV Series Installation Manual page 51

CAUTION
• The filled-out label must be adhered in the proximity of the
product charging port.
(ex. onto the inside of the stop valve cover.)
Single installation
• Open the manifold gauge valve connected to the liquid side
service valve and add the liquid refrigerant.
• If you cannot add the whole quantity of the refrigerant while
the outdoor unit is stopped, open the gas side and liquid side
service valve. Then, add remaining refrigerant by pressing the
refrigerant adding button of the outdoor PCB.
Gas side
R-410A
(Inject
liquid
refrigerant)
Scale
Vacuum port
Module installation
• Open the manifold gauge valve connected to the liquid side
service valve and add the liquid refrigerant.
• If you cannot add the whole quantity of the refrigerant while
the outdoor unit is stopped, open the gas side and liquid side
service valve. Then, add remaining refrigerant by pressing the
refrigerant adding button of the outdoor PCB.
• If you use the refrigerant charging function from the PCB,
outdoor unit will operate and charge the refrigerant. At
this time, you must use gas side manifold gauge for cooling
operation and use charging port for heating at the manifold
gauge for heating operation.
Manifold gage
R-410A
(Inject
liquid
refrigerant)
Scale
Vacuum port
Outdoor unit
Liquid side
Manifold gage
Service valve
Outdoor unit Outdoor unit
Liquid side
Gas
side
Liquid side
Service valve
pipe
CAUTION
• 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.)
• 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
10~12 N‧m
• Tightening torque for the cap of control part 20~25 N‧m
• Opening/closing torque for the valve
– Over Ø 19.05 : 10.0 N·m
Cap for the control part
Cap for the refrigerant
charging port
51
English