47
ENGLISH
Charging refrigerant
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Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant.
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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
Scale
R-410A (Inject
liquid refrigerant)
Liquid side
Vacuum port
Manifold gage
Service valve
Outdoor unit
t
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.)
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Put on safety equipment when charging refrigerant.
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Do not charge the refrigerant when you adjust or control other product such as indoor units or EEV kits.
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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.
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Beware for possibility of refrigerant leakage when you connect the manifold gauge to the charging port for
heating.
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Close the valve of the refrigerant container immediately after charging the refrigerant. If not, there might be a
change in entire amount of refrigerant.
CAUTION
