STARTING AND OPERATING INSTRUCTIONS.

TM 5-4120-369-14

(2) Connect air ducts to the unit as applicable to the site of installation. If the inlet

grille is removed, a return air filter should be relocated in the return air duct at a maintainable

location. Operation of unit without a return air filter will cause clogging of the evaporator fan

and evaporator.

(3) Connect a condensate drain line into female pipe threaded connection (Figure 1-2)

to carry condensate water away from site of installation only if the drop of condensate is

objectionable.

(4) Connect the power input connector plug (per Components of End Item List

Appendix B) furnished with the air conditioner to a suitable electrical power cable. Connect

the cable to the proper electrical power source and install the plug end of cable to either

the main power receptacle or the alternate power receptacle. If alternate power receptacle

(Figure 1-2) is used, refer to wiring diagram (FO-1) and change wire lead connection at TB-4.

To avoid damage to the compressor, electrical input power

must be applied to energize the compressor crankcase heater

at least 4 hours before operating unit in the cool mode.

STARTING AND OPERATING INSTRUCTIONS.

Reparation for Starting.

(1) Perform the daily preventative maintenance service (paragraph 2-4).

(2) Connect the main power cable.

(3) Check drain holes to insure that they are open.

(4) Be sure the unit is firmly secured.

(5) Roll up condenser cover and tie at top of unit to clear condenser opening.

NOTE

When vent damper door is open to admit fresh air, partially

close evaporator inlet louver to balance incoming air. Keep

vent or damper door closed during heavy rain.