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INSTALLER SETTINGS (continued)
SERVICE MONITOR MENU
Two menus are available for the 9920i, the System Monitor and the Filter Monitor. Three menus are
available for the 9901i and the 9915i, the Cool Monitor, the Heat Monitor and the Filter Monitor. All
can be set based on the HVAC system run time or the calendar. See Reminder Interval.
All selections can be set from OFF to 360 days in 30 day increments or OFF to 980 in 20 hour increments.
REMINDER INTERVAL
The Reminder Interval can be set for either HVAC system run time or based on the calendar.
If Run Time is chosen, the service reminder will be set in hours. After the HVAC system has been
operating for the selected number of hours, a Service Reminder will be displayed informing you that
service is suggested for your system.
If Calendar Time is chosen, the service reminders will be set in days. After the selected number of
days has passed, a Service Reminder will be displayed informing you that service is suggested for
your system.
TEMPERATURE OFFSET
The OFFSET or calibration feature allows the installer to recalibrate the thermostat if the displayed
room temperature is not the actual room temperature. The OFFSET feature also allows you to dis-
play a temperature that is different from the actual room temperature.
SHORT CYCLE PROTECTION
You can change or remove the timed delay that protects the compressor in an air conditioner or
heat pump system. Short Cycle Protection should be turned off ONLY if the HVAC system has other
protective circuits that guarantee a compressor off time. This feature is adjustable from OFF to 5
minutes in 1-minute increments.
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INSTALL MENU
SELECT
SERVICE MONITOR MENU
COOL MONITOR 980
HEAT MONITOR 980
FILTER MONITOR 980
INSTALL MENU
SELECT
REMINDER PERIOD
RUN TIME
CALENDAR TIME
INSTALL MENU
SELECT
TEMPERATURE OFFSET
+3.0 ˚F
INSTALL MENU
SELECT
SHORT CYCLE
PROTECTION
4 MINUTES
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