Section III: OPERATION UNDER USUAL CONDITIONS

TM 5-4120-352-14

OPERATION UNDER USUAL CONDITIONS

Section III.

NOTE

2-7.

General

When vent damper door is open to admit fresh air,

a. The instructions in this section are published

partially close evaporator inlet louver to balance in-

for the information and guidance of the personnel

coming air. Keep vent or damper door closed during

responsible for the operation of the air conditioner.

heavy rain.

b. The operator must know how to perform every

b. Starting Instructions for Cooling. Start

operation of which the air conditioner is capable.

the air conditioner for cooling as shown in figure 2-

This section gives instructions on starting and stop-

ping the air conditioner, and detailed operating in-

c . Operating Instructions for Cool-

structions. Since nearly every condition presents a

ing. Operate the air conditioner for cooling as

different problem, the operator may have to vary

shown by figure 2-5.

the given procedure to fit the condition.

d. Starting Instructions for Heat-

ing. Starting the air conditioner for heating is

2-8

Starting and Operating In-

shown in figure 2-6.

e. Operating Instructions for Heat-

structions.

ing. Operate the air conditioner for heating as

a. Preparation for Starting.

shown in figure 2-7.

(1) Perform the daily preventive maintenance

f. Operating Instructions for Venti-

service (para 3-4).

lation. Operate the air conditioner for ventilation

(2) Connect the main power cable.

as shown by figure 2-8.

(3) Check drain holes to insure that they are

open.

2-9.

Stopping Instructions

(4) Be sure the unit is firmly secured.

a. Stop the air conditioner as shown by figure 2-

(5) Roll up condenser cover and tie at top of

air conditioner to clear condenser opening.

b. Perform the daily preventive maintenance

service (para 3-4).

2-8