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69-0854 6
OPERATING YOUR FRESH AIR VENTILATION SYSTEM
Step 1
Move the power switch to the On position. With this switch in the Off
position, all power to the system is removed and no system controls will
have any effect.
Step 2
Move the Lo-Standby-Hi switch to the Lo position. This setting will
provide a low ventilation rate suitable for continuous operation. When
you do not want continuous ventilation, move the switch to the Standby
position. Activating a Perfect Climate Comfort Center, a timer, a wall
switch or the sensing of high humidity by the dehumidistat will switch the
ventilator into the high speed from either the Lo or Standby position.
Move the switch to the Hi position when you want maximum ventilation.
Step 3
The Perfect Climate Comfort Center may be used to control your ventila-
tion rate. This can be done automatically by using the programmed times
or manually by pressing the Ventilate button on the keypad. See the
Perfect Climate Comfort Center™ User’s Guide (form 69-0891) for
complete instructions.
Step 4
When one or more dehumidistats are part of the control scheme, set the
dehumidistat at the desired humidity level. Generally, the dehumidistat(s)
should be located in areas, such as a bathroom, that generate excess
moisture. When a shower is used, the local humidity level will go above
the dehumidistat setpoint and the ventilation system will switch to the high
speed (maximum ventilation). The ventilation system will return to the
previous setting when the humidity drops below the setpoint.
NOTE: When there is more moisture in the outside air than the inside
air (summer time), turn off the dehumidistat(s). Moisture laden
outdoor air brought inside will not dry the house.
If your heating system has a powered humidifier, make sure the
dehumidistat is set at least ten percent relative humidity above your
humidistat. It may be necessary to lower the humidistat setting to avoid
condensation in the winter.