Figure 5-2. Discharging Refrigerant

TM5-4110-234-14

TO 40R7-5-7-1

b. If a unit has been pumped down for system repairs other than in the receiver area, it is only necessary to

open the system at the compressor service valve pressure taps and release the small pressure remaining prior to purging

and repair.

Discharging a total system or a system that has been pressurized for leak testing.

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.

(1)

If the service manifold was left hooked up after leak testing, skip steps (2), (3) and (4).

(2)

Backseat (Remove the valve stem cap and turn the stem fully counterclockwise) on both compressor

service valves. See figure 5-1.

(3)

Remove the flare caps from the compressor suction and discharge service v alve gage port tees.

(4)

Connect hoses from a testing manifold to the suction and discharge valve gage port tees.

(5)

Attach a hose to the center service manifold.

Figure 5-2. Discharging Refrigerant

Change 2 5-7