DISCHARGING THE REFRIGERANT SYSTEM - TM-5-4120-347-140125

TM 5-4120-347-14

5-9. DISCHARGING THE REFRIGERANT SYSTEM

(See figure 5-2.)

Death or serious injury may result if personnel fail to observe safety precautions. Use great care to avoid

contact with liquid refrigerant or refrigerant gas being discharged under pressure. Sudden and irreversible

tissue damage can result from freezing. Wear thermal protective gloves and a face protector or goggles in

any situation where skin-eye-contact is possible.

Prevent contact of refrigerant gas with flame or hot surfaces. Heat causes the refrigerant to break down

and form carbonyl chloride (phosgene), a highly poisonous and corrosive gas.

Figure 5-2. Discharging refrigerant

NOTE

In accordance with Environmental Protection Agency regulations refrigerants cannot be discharged into

the atmosphere. A refrigerant recovery & recycling unit must be used whenever discharging the refrigerant

system.

a. Disconnect power at the power source.

b. Remove the refrigerant charging valve access cover.

Remove the caps from the charging valve hose connections.

d. Connect a charging manifold to the charging valves.

e. Attach a hose assembly to the center connection of the manifold.

NOTE

Operation of the recovery/recycling unit must be by AUTHORIZED PERSONNEL ONLY

Connect and operate a recovery/recycling unit in accordance with the manufacturer's instructions.