– 33 –
Components Testing (Continued)
If outdoor temperature is at 40
°
F and drain valve does
not open, replace it. (Ensure it is not restricted by
debris).
Bellows
Assembly Drain
Pan valve
Fresh Air Door
The Fresh Air Door is an "intake" system. The
fresh air door opens via a slide on the front of the
chassis located just above the indoor coil. Move
the slide left to open and right to close the fresh
air door. The system is capable of up to 60 CFM
of fresh air @ ~ .3" H2O internal static pressure.
Drain Pan Valve
During the cooling mode of the operation,
condensate which collects in the drain pan
is picked up by the condenser fan blade and
sprayed onto the condenser coil. This assists in
cooling the refrigerant plus evaporating the water.
During the heating mode of operation, it is
necessary that water be removed to prevent it
from freezing during cold outside temperatures.
This could cause the condenser fan blade to
freeze in the accumulated water and prevent it
from turning.
To provide a means of draining this water, a
bellows type drain valve is installed over a drain
opening in the base pan.
This valve is temperature sensitive and will open
when the outside temperature reaches 40°F. the
valve will close gradually as the temperature rises
above 40°F to fully close at 60°F.
Содержание GE Vertical Zoneline AZ90E09D C
Страница 48: ...48 Schematic...