Wallplate Installation
The thermostat can be mounted horizontally on the wall
or on a 2 in. x 4 in. wiring box. Position wallplate
horizontally on the wall or on a 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.
2. Use a pencil to mark the mounting holes. See
Fig. 2.
3. Remove the wallplate from the wall and drill two
3/16 inch holes in the wall (if drywall) as marked.
For firmer material such as plaster, drill two 7/32
inch holes. Gently tap anchors (provided) into the
drilled holes until flush with the wall.
4. Position the wallplate over the holes, pulling wires
through the wiring opening.
5. Loosely insert the mounting screws into the holes.
6. Tighten mounting screws.
WIRING
All wiring must comply with local electrical codes and
ordinances. Refer to Fig. 3 for typical hookup. A letter
code is located near each terminal for identification.
CAUTION
Disconnect power before wiring to prevent
electrical shock or equipment damage.
1. Loosen the terminal screws on the wallplate and
connect the system wires. See Fig. 4.
X-XX UL
INSTALLATION INSTRUCTIONS
®U.S. Registered Trademark
Copyright © 1997 Honeywell Inc. • • All Rights Reserved
T8611G Chronotherm
®
IV
Deluxe Programmable
Heat Pump Thermostats
APPLICATION
The T8611G Chronotherm® IV Deluxe Programmable Heat Pump Thermostats provide electronic control of 24 Vac
single-zone heat pump systems. Refer to Table 1 for a general description of the thermostats. All T8611 thermostats
require a common wire to supply power.
Table 1. Description of T8611 Thermostats.
RECYCLING NOTICE
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.
INSTALLATION
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
technician.
4. After completing installation, use these instructions
to check out the product operation.
Location
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.
T8611 Changeover System Selection Fan Selection Comments
GAutomatic Em Heat-Heat-Off-Cool-
Auto
On-Auto System and fan selections are done by keyboard.
69-0936-1
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