Honeywell T7200 Owner's Manual page 24

1. Do not disconnect the power supply to the
system during battery replacement. This would
cause backup battery operation and battery drain
until the system is powered up.
2. Loosen Allen screw at each corner along the
bottom of thermostat.
3. Remove thermostat by swinging bottom away
and upward from wallplate or subbase. Do not
detach cables.
4. If battery replacement is required, replace only
with a fresh Mallory MN1604 or equivalent 9-volt
alkaline battery.
5. Locate the battery holder on the back of the
thermostat. Snap a 9V alkaline battery into the
connector/holder observing polarity. Slide the
battery up to the battery connector until connected.
6. Reattach T7200/T7300 to wallplate or subbase
and secure by tightening both Allen screws along
bottom of thermostat. Do not overtighten.
STEP I- KEEP THERMOSTAT'S
CABLES CONNECTED
TO SUBBASE CR
WALLPLATE.
STEP 2 -SNAP BATTERY IN
PLACE.
STEP 3 - SLIDE BATTERY UP
TO THE BATTERY
CONNECTOR UNTIL
CONNECTED.
IMPORTANT
Do not connect battery until the thermo-
stat's cables are connected and the HVAC
system is ready to be put into operation.
Battery power will be drained if system
power is oft for lengthy periods.
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