Refrigerant Recovery And Charge - Daikin LXE10E-A14 Service Manual

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4.4.4 Refrigerant Recovery and Charge

(1) Schematic diagram
service port
w
q
Pressure Check
Refrigerant recovery
and charge (R134a:
4.6Kgf)
Evaporator
BSV DSV
Check valve
SMV
Compressor
r
service port
Service work
High pressure
Low pressure
[1] Refrigerant
Recovery
[2] Vacuum &
Dehydration
[3] Liquid charging
EV
ESV
HSV
Condenser
DPR
Receiver
ISV
t
Service port
w
q
Recover refrigerant from port t
t
after operating
Automatic Pump-Down first.
Recover completely the refrigerant
r & t
left in the unit port r & t.
After recovering, vacauum from
port r & t.
r & t
The connection at port r is same
※
size at q for low pressure.
After vacuuming, charge liquid
refrigerant from t first and them
t→e
from e.
If not reached to the specified
amount 4.2 kgf, go to next below.
1. Operate Automatic Pump-Down
first and stop it using ON/OFF
switch after the compressor
e
stops during the Auto pump
down operation.
2. Charge liquid refrigerant from
port e.
4-20
Drier
LSV
e
Remarks