Table 4-1. Unit PMCS Quarterly Schedule
Item To Be
Compressed air used for cleaning purposes will not
exceed 30 psi (2.1 kg/cm2).
Do not direct
compressed air against skin. Use goggles or full
Blow accumulated dust and dirt out of the air passages in the indoor coil
(10) using compressed air or the discharge side of a portable vacuum
Inspect ind6or coil for obvious damage and all mounting hardware for
tightness and security.
Wipe any dust or dirt out of the condensate pan (11).
Pour about two cups off clean fresh water into the condensate pan and
watch for it to flow through the tube extending from the bottom of the air
If the water does not flow out, or if it has a muddy appearance, thoroughly
flush the tube. If the tube is clogged, insert a flexible wire from either the
top or bottom end and agitate until the clog is removed. Pour additional
water in the condensate drain pan until an unrestricted flow of clean water
Inspect air filter (12).
Discard filter and install new filter if dirty or damaged.
Install both side door assemblies See para 4-19.
Connect power to the unit.
High voltage is used in the operation of this
equipment. Death on contact or severe injury may
result if personnel fail to observe safety
precautions. Do not operate unit without front and
side door assemblies in place and tightly secured.
(1) Move the system switch on thermostat to HEAT, and fan switch to
(2) Move thermostat lever about 10 degrees F (5.6 depress C) above room
temperature. Both stages of heating and fan should start, providing
there is no external time delay or outdoor temperature limiting system.