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SERVICING REFRIGERANT SYSTEM. (cont) - TM-5-4120-369-140127
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TM-5-4120-369-14 Air Conditioner Horizontal Compact 18 000 BTU 208 Volt 3 Phase 50-60 Hertz NSN
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Appendix A: REFERENCES - TM-5-4120-369-140129
TM 5-4120-369-14
6-5.
DECONTAMINATION - Continued.
Decontaminate system as follows:
Procedure.
b.
Step 1.
Discharge system (paragraph 6-4) and purge with nitrogen
Step 2.
Remove defective motor-compressor (paragraph 5-31).
Remove dehydrator (paragraph 5-20).
Step 3.
With compressor out of system, purge all lines with dry nitrogen
Step 4.
Install a new compressor (paragraph 5-31) containing a full and proper
Step 5.
oil charge.
Step 6.
Install new dehydrator (paragraph 5-20).
In step (10) this dehydrator
will again be replaced.
Triple evacuate system and charge with refrigerant R22.
Step 7.
Start air conditioner (paragraph 2-5) and operate unit for 24 hours.
Step 8.
Discharge system and purge with nitrogen (paragraph 6-4).
Step 9.
Install new dehydrator (paragraph 5-20).
Step 10.
Evacuate system (paragraph 6-4) and recharge with refrigerant
Step 11.
Operate air conditioner.
Step 12.
6-6.
a.  Inspection.  Inspect coils for damaged tubing and bent fins. Inspect threaded holes
for damaged or stripped threads.
b.  Repair.  Repair any leaks. Straighten bent fins.
Repair or replace damaged tubing
if possible.  Replace coil if repair is not practical.

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