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Batteries
Battery operation is available for installations where there is no common (C)
wire available at the thermostat. For battery operation, install two alkaline AA
batteries. The thermostat is designed to operate up to one year on a set of
batteries. A battery indicator on the display warns when battery replacement is
needed. If batteries are installed and the thermostat is operated from 24VAC
power, battery operation will occur only when 24VAC power is not present. The
changeover between 24VAC power and battery power is automatic.
For HeatCool system, 5 wires are needed for 24VAC operation a nd 4 w ires are
requi r ed for batt ery oper ation.
For HP system, 6 wires are needed for 24VAC operation and 5 wires for battery
operation.
When battery operation is used, the C terminal does not need to be connected.
NOTE: Batteries are not required when there are enough wires for proper
operation.
INSTALLATION
Mounting to a horiz ontal junction box.
For those installations requiring it, mounting hole locations for the
non--programmable are spaced to fit a horizontal junction box.
Step 1 — Thermostat Location
S Approximately 5 ft (1.5m) from floor.
S Close to or in a frequently used room, preferably on an inside
partitioning wall.
S On a section of wall without pipes or duct work.