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Power options & mounting
Connect common
side of transformer
to "B" terminal
Install batteries in back of thermostat
(optional if AC powered).
Jumper
AC Power
The Comfort Control must be
powered by 24 VAC power.
To wire the Comfort Control for AC
power, connect the common side of
the cooling transformer to the "B"
terminal as shown at left.
Important: Remove R/Rc jumper for
2-transformer systems only. (See wiring
diagram on page 5.)
Battery Backup Power
The Comfort Control can be powered
by backup batteries when used with
AC power. During power interruptions
the batteries will save time/day set-
tings and power the display.
After installation, batteries can be
changed without removing the
Comfort Control from the wall
(see page 10).
To Mount Comfort Control
Align the 4 tabs on the wallplate
with corresponding slots on the
back of the Comfort Control, then
push gently until the Comfort
Control snaps in place.
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