Section IV. OPERATION OF EQUIPMENT - TM-5-4120-282-130032

13. Controls and Instruments

The purpose of the controls are illustrated in Figure 1.

Section IV. OPERATION OF EQUIPMENT

14. General

a. The insructions in this section are for the information and

guidance of the personnel responsible for the operation of the air

conditioner.

b. The operator must know how to perform every operation of which

the air conditioner is capable. This section give instructions on

starting and stopping the air conditioner, selecting temperatures, and

operating under vaious conditions.

15. Starting

Preparation for Starting

(1) Perform the necessary daily preventative maintenanoe (para

(2) Be sure the air inlet and outlets on both the condenser and

evaporator side are free from obstructions.

(3) Connect the cap end of the power cord into the unit first

(4) Set the thermostat control switch (fig. 1) either cooler or

warmer as desired. This must be experienced by the operator since

there are no temperature markings on the panel.

Starting.

(1) Place the Selector Switch (fig. 1) in the FAN position to

start the fans.

(2) Place the selector switch in the COOL position. When the

temperature in the compartment is above that of the thermosat setting,

the unit will operate.

If the unit does not operate, check the voltage supply or

other reasons for failure to operate (para 33).