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Figure 4-86. Pressure Relief Valve
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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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Figure 4-87. Condenser Coil
TM 5-4120-359-14
4-83. CONDENSER COIL INSPECTION AND CLEANING/INSTALLED
Preliminary Procedures:
1. Disconnect power.
2. Remove top condenser cover. (See paragraph 3-25.)
3. Remove condenser guard and condenser inlet EMI screen. (See paragraph 3-28.)
a. Inspection of installed items.
(1) Check for accumulated dirt. Clean if an accumulation of dirt is evident.
(2) Check tins for dents, bent edges or any condition that would block or distort air flow. Straighten all damaged
fins with a plastic fin comb.
WARNING
Compressed air used for cleaning purposes will not exceed 30 psi (2.1 kg/cm2).
CAUTION
Do not use steam to clean coil.
b. Cleaning. Clean coil with a soft bristled brush, vacuum cleaner and brush attachment or use compressed air at
30 psi or less from the inside of the coil to blow the dirt out. Take care to avoid fin damage. When using compressed air,
wear safety glasses or goggles. Dirt can be blown into your eyes.
c.
Repair/Replacement. Should a leak or major damage be evident go to paragraph 4-84.
Follow-on Procedures: 1. Install condenser guard and condenser inlet EMl screen. (See paragraph 3-28.)
2. Install top condenser cover. (See paragraph 3-25.)
3. Connect power.
4-84. CONDENSER COIL
For inspection and cleaning of installed coil, see paragraph 4-83.
Preliminary Procedures:
1. Remove air conditioner from shelter. (See paragraph 3-6.)
2. Remove top condenser cover. (See paragraph 3-25.)
NOTE
3. Remove right end condenser cover. (See paragraph 3-26.)
Wrap  wet  rags  near
joints being brazed.
4. Remove left end condenser cover. (See paragraph 3-27.)
Use tape to cover open
5. Remove condenser guard and condenser inlet EMI screen. (See paragraph 3-28.)
joints.
6. Discharge refrigerant system. (See paragraph 4-5.)
7. Remove high pressure switch. (See paragraph 4-80.)
4-171

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