TM 9-4120-385-14
WARNING
High voltage can kill.
1. Disconnect power supply.
WARNING
Use great care to avoid contact with liquid refrigerant or refrigerant
gas being discharged from any container under pressure. Sudden
and irreversible tissue damage can result from freezing. Wear
thermal protective gloves and a face protector or safety glasses in
any situation where skin or eye contact is possible.
Prevent contact of refrigerant gas with flame or hot metal surfaces.
Heat causes the refrigerant to break down and form carbonyl
chloride (phosgene), a highly toxic and corrosive gas. In case of
refrigerant leaks, ventilate area immediately.
2. Release refrigerant Refer to Paragraph 5-5.
3. Remove 11 screws and rain seal washers and top panel.
4. Remove four screws, Iockwashers, and flat washers and discharge grille.
5. Remove mist eliminator .
6. Nitrogen purge. Refer to Paragraph 5-6.
7. Debraze tubing at the most convenient points to remove the evaporator coil (3).
Refer to Paragraph 5-2.
8. Remove four screws (1) and flat washers (2).
9. Lift evaporator coil (3) and attached tubing from casing.
10. Debraze remaining tubing from evaporator coil (3).
b. TEST.
1. Test coil for blockage or restrictions by applying 10 to 30 psig of dry air to coil.
2. Make sure air flows through coil.
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