REFRIGERANT SYSTEM CONTINUOUSLY LOSING REFRIGERANT

TM5-4120-383-14

Table 5-1.

TROUBLESHOOTING-Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

(See para 5-24.)

Check pressure regulator valve.

Step 9.

Replace if defective.

(See

Step 10. Check expansion valve for proper operation.

Replace if defective.

(See para

Step 11. Check quench valve for proper operation.

Replace if defective.

REFRIGERANT SYSTEM CONTINUOUSLY LOSING REFRIGERANT

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.

Check refrigerant tubing and components for leaks

Step 1.

using a leak detector.

Repair or replace as required.

Check pressure relief valve.

Step 2.

Replace if defective.

5-9