SERVICE -- DISCHARGING

TM 9-4120-430-14

0044 00

Remove screws from service valve access cover. See figure 1.

Remove service valve access cover.

Unscrew hose connection protective caps from service valves.

WARNING

REFRIGERANT-22 (R-22)

Unit contains R-22, a chemical substance which harms public health and the

environment by destroying ozone in the upper atmosphere, and that the equipment is

to be serviced by qualified personnel only.

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

ONLY.

WARNING

CARBONYL CHLORIDE (PHOSGENE)

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.

Connect the charging manifold hoses to the manifold and air conditioner service valves.

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

The open end of the center connection hose must be connected to the recovery/recycling unit that is located in a well

ventilated area.

WARNING

Discharge refrigerant in an open area and not around an open flame.

CAUTION

Unit contains R-22, a chemical substance which harms public health and the

environment by destroying ozone in the upper atmosphere, and that the equipment is

to be serviced by qualified personnel only.

Slowly open the low pressure service valve to allow refrigerant gas to flow slowly out of the hose.

Slowly open high pressure service valve to allow refrigerant gas to flow slowly out of the hose.

Check the discharge hose for the presence of oil. Adjust (close slightly) valves if necessary to prevent oil discharge.

0044 00-2