TM 9-4120-404-14
4-29. EVAPORATOR COIL.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Tools Required
Tool Kit, Service, Refrigeration, Unit (Item 1, Appendix B)
Pump, Vacuum (Item 1, Appendix B)
Regulator Assembly (Item 6, Appendix B)
Material/Parts Required
None
Equipment Condition
Air conditioner shut down and cool.
Front cover removed (see para. 3-27).
Conditioned air louver removed (see para. 3-20).
Mist eliminator removed (see para. 3-28).
Coil frost switch removed (see para. 3-44).
Heater elements removed (see para. 3-29).
Recover refrigerant from system (see para. 4-6).
Purge the system with nitrogen (see para. 4-6).
(1) Debraze the distributor (1) from expansion valve (2) (see para. 4-7).
(2) Debraze suction return line (3) from evaporator coil (4) (see para. 4-7).
(3) Remove six screws (5), six lock washers (6), left mist eliminator bracket (7), and right mist eliminator
bracket (8).
(4) Remove the evaporator coil (4).
b. Installation.
(1) Place evaporator coil (4) into unit.
(2) Install right mist eliminator bracket (8), left mist eliminator bracket (7), six lock washers (6) and six screws
(5).
(3) Purge the system with nitrogen (see para. 4-6).
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