TM 9-4120-378-14
4.7
INSTALLATION.
4.7.1
General.
a.
Air conditioner is assembled and ready for operation.
b.
It contains full charge of refrigerant and compressor oil.
4.7.2
Mounting.
a.
Place the unit on a firm, level surface to permit proper drainage of water that condenses out of the air.
b.
Position the unit so that the control panel and the condenser and the evaporator louvers are accessible to the opera-
tor and to maintenance personnel.
c.
Check that there are no obstructions in front of any air inlet or outlet louvers or other openings.
The dimensions for base-mounting holes are shown below. The resilient mounting parts shown in the lower parts
d.
of the figure are shipped with the air conditioner.
Connect a drain line if necessary.
e.
4.7.3
Grounding.
a.
Clean front of ground connection to obtain a bright metal surface.
b.
Remove insulation from ends of grounding wire ( 10 AWG) or use bare ends. Make loop at wire ends.
Using a 1/4-20 screw and washer, attach one end of wire to air conditioner front panel ground connection.
c.
Wrap a suitable length of perforated strap around clean surface on water pipe or grounding rod.
d.
e.
Using a 1/4-20 screw, two washers and nut, attach other end of grounding wire to strap in a manner such as to
securely tighten strap to pipe or grounding rod ( 10 AWG) and wire to strap. If vehicle chassis is use, 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.
