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CT30/CT33 Low-voltage Thermostat
Set adjustment lever (CT30 only)
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).
Your system
Gas or oil furnace
(less than 90% efficiency)
Electric furnace (any type)
High efficiency furnace
(more than 90% efficiency)
Hot water system
Gas/oil steam or gravity system
Finish installation
Thermostat
(shown with
optional
cover plate)
Setting
0.4
0.3
0.8
0.8
1.2
Cover
5
1 Align the 3 tabs on
the cover with slots
on the thermostat,
then push gently
until the cover
snaps into place.
2 Restore electrical
power at the heat-
ing/cooling system,
or at the fuse/
circuit-breaker
panel.
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