Honeywell RTH7400 series - Usage Caution

Operating Manual
69-2222ES—05 16
About your new thermostatAuto Changeover
If the cool temperature is lowered to where it gets close to the heat setting, an arrow
next to heat will show the thermostat is lowering the heat setting down to maintain a
3-degree separation.
CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the
outside temperature drops below 50°F (10°C).
69
System
Hold
Heat
Cool
Fan Auto
Cancel
Set To
Tue
PM
74
1
:
09
Temporary
M27486
System Auto
Heat
The triangle indicates the cool temperature is
increasing to maintain 3 degrees between heat
and cool settings.