Thor Kitchen HC-767, Руководство по ремонту, Страница: 62 / 65

Items Precautions
4.Refrigerant charging 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.
5. Gas-leakage test * Take a leakage test on the welded or suspicious area with an electronic leakage tester.
6. Pipe arra ngement i n
each cycle * Check ea ch p ipe is pla ced in i ts o riginal pla ce before c losing a cov er back-M/C a fter
completion of work.
9-4. Standard Regulations for Heavy Repair
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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