Daikin VRV - WII Service Manual page 142

SiUS30-604
3.2.5 Setting of Refrigerant Additional Charging Operation
When additional refrigerant is not charged all with outside unit in stop mode, operate the outside
unit and charge the liquid refrigerant from the service port of liquid stop value. The additional
charging operation is activated by pushbutton switch on the outside unit PC board.
[Additional refrigerant charge total flow]
Test Operation
Confirm DISCHARGE,
SUCTION and LIQUID Stop
valves closed.
STEP 1
Additional
Turn off the power.
charge
without
Compressor
operation
Charge through Service port of
LIQ. Stop valve.
Is all refrigerant charged?
Open DISCHARGE & SUCTION
LIQUID side stop valve:
1. Fully open the liquid side stop valve.
STEP 2 2. After ten minutes, fully close liquid line stop
valve and then, open the valve by turning
180º.
Note: The stop valve operations are different
from heat pump and heat recovery
Additional
connection, refer following page for
charge
detail.
with
Compressor
operation
Start additional refrigerant charge mode.
(Setting Mode 2 : Refer operation procedure
detail on next page.)
Is all refrigerant charged?
YES
GAS Stop valve.
YES
NO
STOP refrigerant charge model
Field Setting
Open DISCHARGE GAS,
LIQUID, SUCTION GAS Stop
valve.
Disconnect charge hose.
END of charge method.
Open LIQUID Stop valve.
(V2892)
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