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AIR FILTER MONITOR
In systems that have a blower fan and air ducts, this feature
is to assist you with proper maintenance and periodic
replacement of the filter located in your heating or cooling
system. The Air Filter Monitor counts the duration of filter
usage that has occurred, since the last time the Filter
Monitor has been reset. The Air Filter Monitor is for
information only, and does not affect the operation of your
heating or cooling equipment. When the filter usage
duration has expired, the words “CHANGE FILTER” will
appear at the bottom of the display as a reminder while in
Run mode.
To set and use the Air Filter Monitor, turn the dial to AIR
FILTER. The display will show the amount of filter usage
remaining. To reset the usage counter, or change the filter
usage duration, press the NEXT button. “SET: FILTER DAYS”
will be displayed on the screen, along with a number of
days. The available settings are: OFF, 30, 60, 90, 120, 180,
or 365 days. If your system does not have a filter, setting
the value to OFF will prevent the “CHANGE FILTER” from
showing up on the screen. Return the rotary dial to the RUN
position when you are finished adjusting the Air Filter
Monitor settings.
12. ADVANCED FEATURES
SWING AND OFFSET SETTINGS
SWING: A thermostat works by turning your heating or
cooling system on and off whenever the room temperature
varies from the set-point temperature. The amount of this
variation is called the swing. Your system should cycle on
about 3 to 6 times per hour. A smaller swing number
increases the number of cycles per hour, so the room
temperature is more precise and constant. A larger swing
number decreases the number of cycles per hour, but can