Weatherstripping, the installation of storm doors and windows (if appropriate), and insulation of surfaces
exposed to the outside is recommended when operation at extremely low temperatures for extended
periods is anticipated.
OR SANDY CONDITIONS.
Dusty and sandy conditions can seriously reduce the
efficiency of the air conditioner by clogging the air filters and thereby causing a restriction of the volume of airflow.
Accumulation of dust or sand in the condenser coil and/or in the compressor compartment may cause overheating of the
refrigeration system. Dust or sand may also clog the mist eliminator, condensate trap, and water drain lines. Some of the steps
that may be taken are:
a. Frequent cleaning of filters and all other areas of dust and sand accumulation. In extreme conditions, daily cleaning of
filters may be necessary.
b. Limit the amount of dusty or sandy outside air introduced through the fresh air damper to that essential for ventilation.
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 fi'equent inspection and cleaning of the condensate trap and drain lines to insure proper drainage.
b. Open evaporator section access door and dry out interior where condensate has collected.
IN SALT AIR
OR SEA SPRAY.
Salt air or sea spray may cause many of the same clogging
problems as encountered when operating in a dusty or sandy environment. In addition, the nature of salt presents serious
corrosion problems. Frequent cleaning is necessary during which all exposed surfaces should be thoroughly spray rinsed or
sponged with fresh water to remove salt.