COOLING CYCLE HEAVY REPAIR
* Pipe Connection
Connect a red hose to the high pressure side and a blue hose
to the low pressure side.
* Vacuum Sequence
Open 1,2 valves and evacuate for 40 minutes.
Close valve 1.
3.Vacuum degassing
Precautions
Items
* Charging sequence
1) Check the amount of refrigerant supplied to each model after
completing vacuum degassing.
2) Evacuate bombe with a vacuum pump.
3) Measure the amount of refrigerant charged.
- Measure the weight of an evacuated bombe with an electronic scale.
- Charge refrigerant into a bombe and measure the weight. Calculate
the weight of refrigerant charged into the bombe by subtracting the
weight of an evacuated bombe.
4.Refrigerant charging
Compresso
Evaporato
Drye
Condense
Vaccu
m
Hot
Blu
Yello
Re
High
Pressur
Low
Pressur
①
②
KEYPOINTING
1) If power is applied during vacuum degassing, vacuum degassing
shall be more effective.
2) Operate compressor while charging refrigerant. (It is easier and
more certain to do like this.)
the amount of refrigerant charged
= a weight after charging
- a weight before charging
(a weight of an evacuated cylinder)
Calculation of amount of refrigerant
h
d
- KEYPOINTING
1) Be sure to charge
the refrigerant at
around 25C.
2) Be sure to keep
-5g in the winter
and +5g in summer.
Indicate the weight
of
48
Summary of Contents for GCG200NGWC
Page 1: ...Pub No DWWR1053E GC 200YAWC GC 200YHWC GC 200NGWC GC 200NHWC ...
Page 3: ...2 External Size Features are model dependent All model has same size SPECIFICATIONS 2 ...
Page 27: ...1 Basic Model 2 Dispenser Model WIRING DIAGRAM 26 ...
Page 51: ...COOLING CYCLE HEAVY REPAIR Brzing Reference Drawings 50 ...
