< Standard Regulations for Heavy Repair >
COOLING CYCLE HEAVY REPAIR
Precautions
Item
4) Refrigerant Charging
Charge refrigerant while operating a compressor as shown above.
5) Pinch a charging pipe with a pinch-off plier after completion of charging.
6) Braze the end of a pinched charging pipe with copper brazer and take
a gas leakage test on the welded parts.
4.Refrigerant charging
Hot
* Take a leakage test on the welded or suspicious area with an
electronic leakage tester.
5. Gas-leakage test
* Check each pipe is placed in its original place before closing
a cover back-M/C after completion of work.
6. Pipe arrangement
in each cycle
1) Observe the safety precautions for gas handling.
2) Use JIG (or wet towel) in order to prevent electric wires from burning during welding.
(In order to prevent insulation break and accident.)
3) The inner case shall be melted and insulation material (polyurethane) shall be burnt
if not cared during welding inner case parts.
4) The copper pipe shall be oxidized by overheating if not cared during welding.
5) Not allow the aluminum pipes to contact to copper pipes. (In order to prevent corrosion.)
6) Make sure that the inner diameter should not be distorted while cutting a capillary tube.
7) Be sure that a suction pipe and a filling tube should not be substituted each other during welding.
( High efficiency pump.)
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Summary of Contents for FRU-541 Series
Page 1: ...Mar 2010 S M No FRSU20IA05...
Page 4: ...2 External Size SPECIFICATIONS 3...
Page 30: ...1 Inner Basic Model 2 Basic Model 3 Dispenser Model WIRING DIAGRAM Refrigerant R 134a Type 29...
Page 31: ...1 Inner Basic Model 2 Basic Model 3 Dispenser Model WIRING DIAGRAM Refrigerant R 600a Type 30...
Page 32: ...1 Inner Basic Model 2 Basic Model 3 Dispenser Model WIRING DIAGRAM for Inverter Compress 31...
Page 55: ...COOLING CYCLE HEAVY REPAIR Brzing Reference Drawings 54...
Page 56: ...Water System for Dispenser Model 55...
Page 57: ...How to install water line Dispenser models only 56...
Page 58: ...How to install water line Dispenser models only 57...
