LEAK TESTING OF REFRIGERATION SYSTEM
Use great care to avoid contact with liquid refrigerant or refrigerant
gas being discharged from any container under pressure. Sudden
and irreversible tissue damage can result from freezing. Wear
thermal protective gloves and a face protector or safety glasses in
any situation where skin or eye contact is possible.
Prevent contact of refrigerant gas with flame or hot metal surfaces.
Heat causes the refrigerant to break down and form carbonyl
chloride (phosgene), a highly toxic and corrosive gas. In case of
refrigerant leaks, ventilate area immediately.
a. ELECTRONIC LEAK DETECTOR TEST.
High voltage can kill.
Disconnect power supply.
Remove 16 screws, and rain seal washers, and canvas cover.
Remove 11 screws and rain seal washers and top panel.
Position refrigerant drum so that only refrigerant gas will be used. Connect the
center hose of the charging manifold to refrigerant tank.
Remove caps from both service valves and loosely connect hose from charging
manifold to service valves. Make sure the high pressure hose is connected to the high pressure
service valve and the low pressure hose is connected to the low pressure (suction) service valve
Purge air from lines and tighten hoses on valves. See Figure 5-1.