Honeywell CT31 Low Voltage Thermostat Owner’s Manual
Owner’s Manual
Mount thermostat base
1
Drill holes at pencil-marked locations (3/16” holes for drywall, 7/32” holes for plaster).
2
Use hammer to
tap anchors into
holes until flush
with wall.
3
4
[Optional] Pull
wires through
cover plate (if
needed to cover
marks left by your
old thermostat).
Pull wires through
thermostat base
and insert screws.
Check level if
desired, then
tighten screws.
Optional cover plate
Thermostat base
Connect wires
1
Match each labeled wire
with same letter on terminal.
2
Use a screwdriver to loosen
screw terminals, wrap bare
wire securely around termi-
nals, then tighten screws.
3
Push any excess wire back
into the wall opening.
Labels don’t match?
If labels do not match letters on
thermostat, see table below.
Existing wires
R • RH • 4 • V
W • W1 • H
Y • Y1 • M
G • F
Connect to:
Terminal “R”
Terminal “W”
Terminal “Y”
Terminal “G”
Stop! See note
If this wire is present, you cannot use
this thermostat with your system. See
page 2.
Rc
4
| General | Details |
|---|---|
| Name | Honeywell CT31 Low Voltage Thermostat Owner’s Manual |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.64 MB |
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