CHAPTER 2. OPERATING INSTRUCTIONS - TM-5-4120-355-140023

CHAPTER 2. OPERATING INSTRUCTIONS

2-1. General.

a. The instructions in this section are published for the information and guidance of personnel responsible for

operation of the air conditioner.

b. The operator must know how to perform every operation of which the air conditioner is capable. This section

gives instructions on starting, stopping, and operating details of the air conditioner. Since nearly every application pre-

sents a different problem, the operator may have to vary given procedures to fit the individual job.

2-2. Starting.

a. Preparation for Starting.

(1) Perform necessary daily Preventive maintenance services, (table 3-1).

(2) Check electrical requirements (para 2-5d).

(3) Model VM 6000-115 must be connected to a 115 volts, 60 hertz, single phase power source.

(4) Model VM 6000-400 must be connected to a 208 volts, 400 hertz, three phase power source.

Figure 2-1. Controls and Instruments

b. Starting.

(1) Cooling operation.

(a) Position thermostat for desired temperature.

(b) Place fan speed toggle switch in desired position.

(d) For coding with 100 percent recirculated air, close damper door.

(e) For coding with fresh makeup air, open damper door and partially close intake grille damper.

(f) For cooling with fresh makeup air drawn through chemical biological filter unit when outdoor air is

contaminated, close damper door and partially close intake grille damper.

2-1