OPERATION IN DUSTY OR SANDY AREAS - TM-9-4120-425-14-P0051

TM 9-4120-425-14&P

OPERATION UNDER UNUSUAL CONDITIONS - Continued

0007-00

OPERATION IN DUSTY OR SANDY AREAS

Protection. Shield the air conditioner from dust as much as possible. Take advantage of any natural barriers which

offer protection.

Cleaning. Keep the air conditioner as clean as possible. Pay particular attention to the louvers. Use compressed air,

if available, to aid in cleaning.

NOTE

Never operate the unit without having the air filters in place.

OPERATION UNDER RAINY OR HUMID CONDITIONS

WARNING

Make sure power is disconnected from air conditioner before touching any wiring or other electrical

parts.

Take special precautions to keep equipment dry. If installed outdoors, cover the equipment with a waterproof cover

when it is not in use. Remove cover during dry periods. Take all necessary precautions to keep the electrical components

free from moisture. Keep the fresh air vent damper door closed during heavy rain.

OPERATION IN SALT WATER AREAS

WARNING

Disconnect power source prior to washing the air conditioner.

General. Wash the exterior and the condenser section of the unit, with clean fresh water at frequent intervals. Be

careful not to damage electrical system with water. Special attention must be given to prevent rust and corrosion.

Painting. Paint all exposed areas where paint has cracked, peeled, or blistered, or report condition to unit

maintenance. Coat all exposed areas of polished metal with a light coat of grease.

END OF TASK

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