PRELIMINARY SERVICING AND ADJUSTMENT OF EQUIPMENT.

TM5-4120-383-14

4-4.

INSTALLATION

INSTRUCTIONS.-Continued

(7) Remove the condensate drain plug from lower left rear

If air conditioner is mounted in a location

corner of the unit.

where water pouring from this drain will be objectionable or create

a hazard, connect a drain line at this point. The fitting used

must have a male 1/8 - 27 NPT connection to unit. Hose, rigid pipe

or tubing can be used to direct drain water to a more desirable

disposal location.

(8) Connect power cable to input power source (208 volt, 3

phase, 50/60 hertz) and air conditioner.

(9) Run operational checks in accordance with paragraph 2-6.

PRELIMINARY SERVICING AND ADJUSTMENT OF EQUIPMENT.

Lubrication.

a. General.

The refrigerant compressor and its drive motor are

hermetically sealed in a canister. The compressor is supplied with

a complete charge of oil and requires no lubrication. The

evaporator and condenser fan motors also have permanently

lubricated, sealed bearings. No lubrication of these items is

required.

b. Mechanical Lubrication. The only mechanical items which may

require lubrication are the conditioned air supply and return

louvers, the condenser air discharge louver and control linkages

and the devices which operate the fresh air damper door. These

points should be checked and lubricated, as necessary during

preventive maintenance service. A few drops of light oil should be

applied to pivot points, bearing surfaces, and linkages to prevent

or eliminate stiffness or binding. Be sure to wipe off all excess

oil with a cloth or paper towel. These items are in an area of

high volume airflow and excess oil will tend to attract and

accumulate dust particles from the passing air. Graphite may be

used as an alternate lubricant during extreme cold weather

operation.

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