Inserting Clock Batteries - Honeywell T8090A Owner's Manual

Inserting Clock Batteries

Power is supplied to the clock by the 24 Vac
transformer, by two AAA alkaline batteries
(included), or by the heating or cooling control
circuit. Backup batteries can be installed to
supply power to the clock if power is interrupted
when using 24 Vac powering method. Install
batteries in thermostat as shown in Fig. 2. Once
a year or when batteries are dead, replace with
two new AAA alkaline batteries. We recom-
®
mend Energizer batteries.
BATTERY LOCATION FOR
(2) AAA BATTERIES;
INSTALL WITH POSITIVE
ENDS UP
Fig. 2—Inserting Clock Batteries.
9
M7188
69-0628B—1