Honeywell THX9421 Thermostat User Manual


 
THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ 2.0 WITH EIM
79 68-0311—01
Fig. 155.
3. Select the reminder you want to set.
4. Press or to set the timer length. Ranges, incre-
ments, and units will change based on the reminder.
NOTE: When set for run time days, the thermostat
tracks the amount of time the fan has run and
compares that time against the number of run
time days selected. Fan run time is counted
when there is a call for forced air heating, cool-
ing, or fan.
Fig. 156.
5. Press Done to save the reminder.
6. Press Reset Timer when you have completed the recom-
mended maintenance or you can extend the timer setting
to turn off the alert and remind you later to do the recom-
mended maintenance.
7. Repeat these steps for all reminders you want to set.
CUSTOMIZABLE REMINDERS
The thermostat can be set to alert the user when it is time for
system maintenance or warranty renewal. You can set up to 10
total Custom Reminders on the thermostat and save them to a
USB drive for easy download to multiple thermostats.
Custom Reminders include:
Service Reminder
Set up for recurring or one time only.
Spring Service Reminder
Provide an alert based on date or outdoor temperature.
Fall Service Reminder
Provide an alert based on date or outdoor temperature.
Your Warranty is Expiring Soon
Set up for recurring or one time only.
New Custom Reminder
Enter new reminders or advertisements
Set up for recurring or one time only.
You can change or create custom reminders in ISU 12000.
Fig. 157.
For example, to set up a Fall Service Reminder based on
Outdoor Temperature:
1. Press Add Custom Reminder (see Fig. 157).
2. Press Fall Service Reminder and press Next.
Fig. 158.
3. Press Outdoor Temperature and press Next.
Fig. 159.
4. Press the up or down arrows to set the temperature, and
press Next. A seasonal maintenance reminder will
appear when the outdoor temperature reaches the level
you select, after a specified date.