Section IV. OPERATION UNDER UNUSUAL CONDITIONS
The air conditioner and generator set
to operate normally within
a wide range
conditions. However, some extreme conditions require special operating and servicing procedures to prevent undue
loading and excessive wear on the equipment. These unusual conditions and the special steps to be performed are listed
in the following paragraphs.
2-18. OPERATION IN EXTREME HEAT. The air conditioner is designed to operate in temperatures up to 120F (49C)
or higher. Extra care should be taken to minimize the cooling load when operating in extremely high temperatures.
a. Air Conditioner.
Unit Preventive Maintenance Checks and Services (PMCS) should be performed at
(a) Check all openings in the shelter or enclosure, especially doors and windows, to be sure they arc
tightly closed Limit in and out traffic, if possible.
(b) When appropriate, use shades or awnings to shut out direct rays of the sun.
(c) When possible, limit the use of electrical lights and other heat producing equipment.
Weather stripping, the installation of storm doors and windows (if appropriate),
and insulation of surfaces exposed to the outside is recommended when operating
in extremely high temperatures for extended periods.
(2) Cleaning. Clean outside grills, coils, filters, and mist eliminator mo re frequently.
b. Generator Set.
(1) Be sure that nothing obstructs air flow to and from the generator set.
(2) Keep cooling fins clean.
(3) Inspect battery electrolyte level daily. Add distilled water if necessary.
(4) Keep generator free of dirt and grime. Be sure ventilating screens are free of obstructions.
c. Trailer. When practical, park the trailer under cover to protect it from sun, sand, and dust.