10
5COMPLETE INSTALLATION
ADJUST CYCLE RATE
1st stage heating and 1st stage cooling cycle
rates are factory-set for heat pumps. The heat
pump compressor cycle rate cannot be adjusted.
To customize the thermostat’s performance to
different types of heating equipment, however, a
cycle rate adjustment screw is provided on the back
of the thermostat to control the auxiliary heat cycle
rate. Correct setting of the screw will provide opti-
mum savings, See Fig. 6.
NOTE: MOST APPLICATIONS DO NOT REQUIRE
A CHANGE IN CYCLE RATE.
The room air temperature normally varies
slightly from the comfort temperature setting with
the cycling of the heat pump or auxiliary heater.
INSTALL BATTERIES
Three AAA alkaline batteries are included with
the thermostat to prevent program loss in case of
power outage. Install batteries in back of thermo-
stat as shown in Fig. 7. Without battery backup, the
Fig. 6—Cycle rate adjustment.
BATTERY PLACEMENT
(NOTE CORRECT PLUS
AND MINUS DIRECTION)
M3058
Fig. 7—Battery placement.
M9075
1A 1B
3 CPH
6 CPH
1B
IN
OUT 1/2
TURN
NOT USED
CYCLE RATE
AUXILIARY HEAT
SLOWER
CYCLING
FASTER
CYCLING