CONNECT THE POWER SOURCE.

TM 5-4120-386-14

4-7. INSTALLATION - Continued.

c. Grounding.

(1)

C l e a n front of ground connection to obtain a bright metal surface.

(2)

Remove insulation from ends of grounding wire (10 AWG) or use bare

e n d s . Make loop at wire ends.

(3)

Using 1/4-20 screw and washer, attach one end of wire to air

c o n d i t i o n e r front panel ground connection.

(4)

W r a p a suitable length of perforated strap around clean surface on

water pipe or grounding rod.

(5)

U s i n g a 1/4-20 screw, two washers and nut, attach other end of

grounding wire to strap in a reamer such as to securely tighten strap to pipe

or grounding rod, and wire to strap. If vehicle chassis is used, secure other

end of grounding wire to vehicle chassis using screw, nut, and lockwasher.

The screw shall fit in a tapped hole in the chassis or frame or it shall be held

in hole by nut.

4-8. CONNECT THE POWER SOURCE.

Make sure the mode selector switch is in the OFF position.

For safe operation, connect a ground wire (at least No. 10 AWG) to the

ground connection.

Connect the air conditioner power cable to a 208

volt, 50/60 Hz, three phase power source.

If auxiliary power input receptacle (J11) is

used,

refer

ures F1 and F2, Wiring Diagrams for connections.

4-9. OPERATION CHECK AND ADJUSTMENTS.

C h e c k operation of unit.

C h e c k for proper fan rotation. With the fan rotating, check to see that air is

s u c k e d through evaporator inlet louver and blown out through evaporator outlet louver.

PIN:

062091-003

Change 3

4-4