White Rodgers 1F90W-71 Operation Manual page 14

utes, to allow the thermostat to reset itself.
Replace the battery, reprogram the thermo-
stat, if necessary, put the thermostat back
on the wall, and restore 24v AC power. To
set the thermostat for automatic changeover
after programming, press
thermostat to AUTO (the setpoint tempera-
ture display is blank in the AUTO mode).
The system will now automatically switch
between heating and cooling, depending on
the actual room temperature.
Automatic Changeover
ON
1 2
Switch #1 ON
Switch #2 OFF
Switch #3 (see Energy Management Recovery)
14
SYSTEM
to set the
HEAT-OFF-COOL-AUTO
Group B
Option
Switches
3
In the AUTO mode, the thermostat will not allow
the temperature separation between the high-
est heat setting and the lowest cool setting to be
less than 1 F. For example, if the highest heat
setting is 75 F, the lowest cool setting cannot be
below 77 F (see diagram below).
79
COOLING TEMPERATURES
78
77
76 DEAD BAND 1°F
75
74 HEATING TEMPERATURES
73
For manual changeover, Group B option
switches #1 and #2 should be in the OFF
position.
• TWO HOUR TEMPERATURE OVER-
RIDE — Press
NOTE
or until the