TM l0-4130-237-14
5-7.
REFRIGERATION SYSTEM LEAK-TEST (CONT)
3 Connect manifold discharge hose to D (discharge) service port.
4 Connect manifold suction hose to S (suction) service port.
Liquid refrigerant under pressure may cause injury to skin or eyes. Wear
thermal protective gloves and goggles where skin or eye contact is possible.
Contact of refrigerant with hot surface or flame creates toxic gas. Keep open
flame and hot surfaces away from refrigerant.
5 Connect refrigerant drum to center hose connection of charging manifold. Open drum valve.
6 Partially open manifold valves. Allow gas to escape at service ports to purge service lines.
7 After two or three seconds, tighten service port hose connections.
8 Allow gas to flow into system. Gages should show equal pressure.
9 Turn on leak detector and hold probe near refrigeration system.
5-29
