4-11
4.6.4 Refrigerant Charge
Charge specified amount of refrigerant after vacuuming and dehydration. Confirm the specified charge
amount of refrigeration stamped on model name plate.
1. Place R134a cylinder on digital scale and connect hose to manifold gauge and purge air inside the hose.
Record weight of R134a cylinder.
2. Charge liquid refrigerant from port ④.
(All specified charge amount of refrigeration can not be charged.)
3. By operating unit, charge gaseous refrigerant from port ① for the rest of specified charge amount of
refrigerant.
Close cock of R134a cylinder after completion of charging.
CAUTION
Do not charging liquid refrigerant from port ①. That causes malfunction of the compressor.
④
R134a
Digital scale
032.3
Liquid charging
①
R134a
Digital Scale
029.3
Gaseous charging
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