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Figure 4-87. Condenser Coil
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TM-5-4120-359-14 Air Conditioner Split Package 18 000 BTU/HR Cooling 30 000 BTU/HR Heating 208 Volt 3 Phase 400 Hertz Manual
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INSULATION - 506780266
TM 5-4120-359-14
(3) Carefully tilt coil and remove from left end.
b. Repair
(1) Repairs are limited to replacement of nut plates, rivets, and the straightening of mashed fins.
(2) Plate nuts may be removed by drilling out the old rivets using a drill bit slightly smaller than the diameter of
the rivet.
(3) Install new plate nut(s) and rivets.
(4) If fins are mashed or dented so that the air flow across the coil would be blocked, straighten them using a
plastic fin comb.
c.
Installation
WARNING
When handling coils, wear gloves to avoid cuts and reduce fin damage on the coil.
(1) Carefully tilt coil and place into position in housing, through left end.
(2) Using screwdriver, secure coil to housing with ten screws.
(3) No air passage is permitted at top or bottom of condenser coil. Seal these areas with insulation. Bond the
insulation in place with adhesive item 12, Appendix E.
(4) While purging the system with nitrogen, braze the tubing joints. (See paragraphs 4-6 and 4-7.)
(5) Install the following components:
Solenoid valve (L1), bracket, and related piping per paragraphs 4-70 and 4-71.
Compressor, per paragraph 4-88.
Low pressure switch, per paragraph 4-81.
High pressure switch, per paragraph 4-80.
Relief valve and related piping, per paragraph 4-82.
(6) Replace the dehydrator. (See paragraph 4-73.)
(7) Check to be sure all tubing has been reconnected.
(8) Leak test all newly connected joints and those in the repair area. (See paragraph 4-8.)
(9) Evacuate and charge the refrigerant system. (See paragraphs 4-9 and 4-10.)
Follow-on Procedures: 1. Install condenser guard and condenser inlet EMI screen. (See paragraph 3-28.)
2. Install left end condenser cover. (See paragraph 3-27.)
3. Install right end condenser cover. (See paragraph 3-26.)
4. Install top condenser cover. (See paragraph 3-25.)
5. Install air conditioner on shelter. (See paragraph 3-6.)
4-173

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