Honeywell Chronotherm IV T8601D Thermostat User Manual

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T8601D Chronotherm® IV Deluxe
Programmable Thermostats
The T8601 Chronotherm® IV Deluxe Programmable
Thermostat provides electronic control of 24 Vac single-
stage heating and cooling systems. Refer to Table 1 for a
general description of the thermostat. All T8601
thermostats require a common wire to supply power.
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash.
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 instructions
to check out the product operation.
Install the thermostat about 5 ft (1.5m) 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.
Table 1. Description of T8601 Thermostats.
T8601 System Changeover System Selection Fan Selection Comments
D Heat-Cool Automatic Heat-Off-Cool-Auto On-Auto Use keyboard for system and fan selections

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