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Honeywell Comfort Window User Manual page 15

Electronic digital thermostat comfort control system

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Humidifier Controls
Comfort Window provides built-in controls for a
whole house humidifier. By watching closely
the humidity levels in the home, Comfort
Window can determine when it is appropriate
to turn on and off a whole house humidifier. In
fact, homes with a humidifier installed will see
better
results
with
technology than those without a humidifier.
This is because the Comfort Window will be
able to keep the current condition point inside
of the ComfortWindow region much better
during the cold-weather months due to low
humidity levels during these time periods.
The humidifier controls provide the option to
either connect the humidifier to the system fan
or to use an additional fan just for the
humidifier itself. In the first case, the system
fan output G will be driven whenever a call for
humidification is required. In the latter case,
the humidifier output will drive the extra fan
and the system fan output G will remain
unaffected. Regardless of whether there is a
humidifier connected or not, the humidifier
output will still be energized. If this output is
not required, simply do not connect any wires
to it.
Figure 26: Humidifier Output Controls
NOTE: For the case of a regular system (non-
heat pump) with a gas heater, it is important to
connect a relay between the humidifier's
power source and the humidifier's power input.
Then, connect the energizing coil for this new
the
ComfortWindow
relay to the system fan output.
heater is running the fan, only then will the
humidifier come on.
thermostats do not drive the system fan in the
case of a gas heater.
themselves run the system fan. And so, since
the Comfort Window is unaware of when the
system fan is running, by forcing the power
source for the humidifier to only be active
when the system fan is running, we can
assure that the humidifier only runs when
there will be adequate air movement to enable
the humidifier to work properly. Please note
that this limitation is not limited to the Comfort
Window – this is inherent to the conventional
gas heater design. One technique to use to
ensure that the system fan does run for a
minimum amount of time is to enable the
Ventilation feature using the Fresh Air Damper
System option (with or without an actual duct
run to the outside) for a minimum number of
minutes per hour. This will ensure that the
system fan will run regardless of whether the
system being used is a gas heater system,
which in turn ensures that the humidifier will
have a chance to run if it needs to run. Be
sure to consult the humidifier's documentation
as well to ensure that these instructions work
with your particular humidifier.
Auto-Dehumidification
Comfort
Window
dehumidification.
conditioning unit if the humidity level within the
house is greater than the high humidity
setpoint in the Comfort Window Settings and if
the current temperature is greater than the
midpoint of the Comfort Window region. This
feature utilizes the idea that compressors will
dehumidify as they run.
need to dehumidify a humid house, but also
not
over-cool
reasonable (half way into the user's pre-set
comfort window settings), the Comfort Window
keeps you more comfortable than ever before.
16 of 24
PCB0001C-01-BHP-PDII0614
If the gas
This is because
The gas heaters
provides
built-in
This feature runs the air
By balancing the
the
home
past
auto-
what
is

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