Deluxe Programmable Thermostats
The T8602 Chronotherm® IV Deluxe Programmable
Thermostat provides electronic control of 24 Vac single-
stage heating and cooling systems. Refer to Table 1 for
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of properly.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of the old thermostat.
When Installing this Product...
1. Read these instructions carefully. Failure to follow
the instructions can damage the product or cause
a hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable
for your application.
3. Installer must be a trained, experienced service
4. After completing installation, use these instruc-
tions to check out the product operation.
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Copyright © 2001 Honeywell •
Table 1. Description of T8602 Thermostats.
• All Rights Reserved
a general description of the thermostat. All T8602
thermostats are powered by batteries.
System and fan selections are done by
Install the thermostat about 1.5m (5 ft) above the floor in
an area with good air circulation at average temperature.
See Fig. 1.
Do not install the thermostat where it can be affected by:
— drafts, or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) areas such as an outside wall
behind the thermostat.
The thermostat can be mounted horizontally on the wall
or on a 50.8 mm x 101.6 mm (2 in. x 4 in.) wiring box.
Position wallplate horizontally on the wall or on a
50.8 mm x 101.6 mm (2 in. x 4 in.) wiring box.
1. Position and level the wallplate (for appearance
only). The thermostat will function properly even
when not level.