TM
9-4120-401-14
This task covers:
a. Flush
b. Purge
INITIAL SETUP
Equipment
Condition
Tools
Refrigeration Unit Service Tool Kit
Goggles
Use disconnect switch (NOT POWER
CABLE) to disconnect power to unit.
Damage to cable connector pins will
Gloves
result if cable is used.
Disconnect power from power source.
Power Supply
Diaphragm Pump
Materials/Parts
Refrigerant R-114
a. Flush.
NOTE
The refrigerant R-114 may be recirculated if run through a 10 micron filter. An
unused refrigerant desiccant dehydrator or other suitable medium may be used
as a filter.
(1) Fill a small drum or suitable reservoir with refrigerant R-114. Connect a line from the suction side of the
diaphragm pump to draw from the bottom of the reservoir. Connect a recovery line with filter to
discharge into the reservoir.
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