White Rodgers 1F90W-71 manual Automatic Changeover, TWO Hour Temperature Over

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	SYSTEM	to set the
	HEAT-OFF-COOL-AUTO

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

Group B

Option

Switches

1 2 3

Switch #1 ON

Switch #2 OFF

Switch #3 (see Energy Management Recovery)

NOTE

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

78COOLING TEMPERATURES

77

76DEAD BAND 1°F

75

74HEATING TEMPERATURES

For manual changeover, Group B option switches #1 and #2 should be in the OFF position.

•TWO HOUR TEMPERATURE OVER-

RIDE — Press or until the

14