TM 9-4110-256-14
5-8.
DISCHARGING THE REFRIGERANT SYSTEM.
This task covers:
Discharge
INITIAL SETUP
Equipment Conditions:
Service manifold installed (para 5-7).
Discharge.
(1)
Check that the refrigerant system has not been pumped down (para 4-45). If it has, open necessary valves
CAUTION
Follow instructions for specific refrigerant recovery unit being used to avoid compressor oil loss.
Loss of oil could result in compressor damage.
NOTE
Venting tetrafluoroethane refrigerant into the atmosphere rather than recovering it is subject to
pending EPA restrictions. Venting the refrigerant may be a violation of public law and subject to
severe penalties.
(2)
Open service manifold pressure and compound gauge valves.
(3)
Open service manifold charge valve. Operate recovery unit until all refrigerant has been removed from
system.
(4)
Close service manifold valves.
(5)
Shut-down refrigerant recovery unit.
5-13
