Section Il. MOVEMENT TO NEW WORKSITE

control connection and blockoff plate provided

Caution: To insure proper electrical

power supply connection, momentarily move the

must be used when the control panel is used as a

selector switch to ventilate. The air flow should

remote control.

be through the intake grille (see fig. 1-1(1)) and

(2) Remote control connection.

out the discharge grille. If the air flow is incor-

rect, interchange any two power leads. (See

(a) Disconnect power source from unit.

wiring diagram.)

(b) Refer to figure 2-1, and install the

e. Remote control.

remote control connection.

(3) Inspection. Inspect remote control panel

(1) General. The control panel may be re-

for breaks, cracks, or other damage prior to in-

moved from the unit and used as a remote control

stallation.

for operation of the air conditioner. The remote

Section Il. MOVEMENT TO NEW WORKSITE

c. Long distance movement. Crate the air condi-

2-4. Dismantling for Movement

tioner, providing adequate protection to grilles

a. General.

and control panel. Refer to TM 382301 for in-

(1) Shut off electrical power supply to air

struction in crate fabrication. Provide suitable

conditioner and disconnect power cable from unit.

b l o c k i n g and tie-downs to prevent unit from

(2) Disconnect drain hose from unit.

shifting during transfer.

Note. Disconnect all duct work and remote

control cable if used with unit.

(3) Unbolt unit from mounting surface.

2-5. Reinstallation After Movement

b. Short distance movement. Use a forklift and

Reinstall the air conditioner as instructed in para-

lift unit at base, or carry unit to new worksite

graph 23.

using the recessed handles at sides of unit.

Section Ill. CONTROLS AND INSTRUMENTS

sure cutout located at the rear of the unit (fig.

26. General

515) is designed to sense line pressure from the

This section describes, locates, illustrates, and fur-

compressor and will cutout at 445 psig (pounds

n i s h e s the operator, c r e w or organizational

per square inch gage). When the line pressure has

m a i n t e n a n c e personnel sufficient information

reduced to 400 psi, the high pressure cutout con-

about the various controls and instruments for

trol can be reset by pushing the reset button.

proper operation of the air conditioner.

c. Liquid line sight glass. The sight glass (fig.

2-7. Controls and Instruments

22 ) indicates dryness of the system. Moisture in

a. The controls and instruments on the air con-

the refrigerant is shown by the indicator turning

ditioner are illustrated on figure 22.

from green to yellow. A shortage of refrigerant is

indicated by bubbles in the sight glass.

b. High pressure cutout control. The high pres-

AGO 20053A