OPERATION IN DUSTY OR SANDY CONDITIONS

5-4120-371-14

2-13.

OPERATION IN DUSTY OR SANDY CONDITIONS. - Continued

airflow.

Accumulation of dust or sand in the condenser coil and/or in the

compressor compartment may cause o v e r h e a t i n g o f t h e r e f r i g e r a t i o n s y s t e m .

Dust or sand may also clog the condensate trap and water drain lines.

Never operate the air conditioner without having the

air filters in place.

Protection.

(1) Shield the air conditioner from dust as much as possible.

(2) Take advantage of any natural barriers which offer protection.

(3) Limit the amount

dusty

sandy

outside

air

introduced

through the fresh air damper.

(4) Roll down and secure the fabric cover on the back of the cabinet

during periods of shutdown.

Cleaning.

(1) Keep the air conditioner as clean as possible.

(2) Pay particular attention t o t h e o u t s i d e g r i l l e s ,

condenser,

filters, mist eliminator, louvers, and electrical components.

(3) In extreme conditions, daily

cleaning

filters,

condenser,

and outside grilles may be necessary.

2-14.

OPERATION IN UNUSUALLY WET CONDITIONS.

The air conditioner is designed for normal exposure to the elements, so it

is reasonably waterproof. Some of the steps that should be taken in an

extremely wet climate are:

a . More

frequent

i n s p e c t i o n and c l e a n i n g o f t h e m i s t e l i m i n a t o r ,

condensate trap, and drain lines to insure proper drainage and prevent

accumulation of water inside the cabinet.

Roll down and secure the fabric cover on the back of the cabinet

during periods of wet, windy weather when the air conditioner is not in

operation.

Roll up and secure the fabric cover during dry spells when the air

c o n d i t i o n e r i s n o t i n o p e r a t i o n s o t h a t t h e i n t e r i o r c a n d r y o u t and

condensation will not accumulate.

2-17

Change 3