CHAPTER 6 - Corrective Maintenance
The Model NAC-600 marine air conditioner is assembled and disassembled by means of module component
items which have been designated as major assembly items, color-coded for ease of distinguishability and are
defined in four (4) main categories as follows:
The plenum assembly.
Blower assembly and fan motor controls compartment.
The evaporator coil, distributor, expansion valve compartment.
The condensing assembly compartment including refrigeration compressor, condenser, receiver, moisture
liquid indicator, filter dryer and junction control box.
Removal, Disassembly and Reassembly
Plenum assembly removal is accomplished by the removal of three (3) screw hold-downs in the front section of
the plenum. The screws are installed or removed depending upon the plenum's use aboard the Naval vessel
the air conditioner has been assigned to. The plenum assembly, once the screws have been removed, can be
moved laterally from the front face