T8600
T8600, T8601, T8602, T8611, T8624
3
4
Thermostats
INSTALLATION INSTRUCTIONS AND OWNER GUIDES ADDENDUM
FURNACE AIR FILTER, HUMIDIFIER PAD AND ULTRAVIOLET (UV) LAMP
TIMERS
The thermostat has up to three timers to help the homeowner remember when to change or clean the furnace air filter,
whole-house humidifier pad or ultraviolet air treatment system UV lamp. See Table 1.
Table 1. Thermostat timers.
Type of Thermostat
Timer Measurement
Calendar days in any mode. Furnace air filter and UV lamp timers UV lamp timer
Calendar days in Heat mode only. Humidifier pad timer Humidifier pad timer
System run time in any mode. — Furnace air filter timer
Manual System Switches
(Heat, Off, Cool)
View or Reset Timer Settings
When the thermostat activates a timer, the thermostat
flashes Filter until the timer resets.
1. Reset the timer by pressing the i key until the
expired timer is displayed.
Filter
2. Press the Time ▲key to reset the timer.
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3. Press the Run Program key.
NOTE: You can view the number of days remaining at
any time by pressing the i key three or four
times. If more than one timer is active, all active
timers show sequentially when pressing the
i key several times.
For complete instructions on replacing or cleaning your
furnace filter, humidifer pad or UV lamp, see the product
owner’s manuals. Contact your local contractor or visit
www.honeywell.com/yourhome.
For instructions on entering Installer Setup mode, see
product installation instructions (installers only). Table 2
gives Installer Setup instructions for the timers.
Pushbutton System Keys
(Heat, Off, Cool)
Filter
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