CT31 Low-voltage Thermostat
5
Set adjustment lever
1 Separate cover from thermostat,
and remove the plastic insert.
2 Use a pencil to move the adjust-
ment lever to the proper setting for
your system (see table below).
Finish installation
1 Mount thermostat
on base and tighten
three mounting
screws.
2 Align the 3 tabs on
the cover with slots
on the thermostat,
then push gently
until the cover
snaps into place.
3 Restore electrical
power at the heat-
ing/cooling system,
or at the fuse/
circuit-breaker
panel.
Thermostat
Cover
Base
(shown with
optional
cover plate)
Your system Setting
Gas or oil furnace
(less than 90% efficiency) 0.4
Electric furnace (any type) 0.3
High efficiency furnace
(more than 90% efficiency) 0.8
Hot water system 0.8
Gas/oil steam or gravity system 1.2
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