Operating Manual

7 69-2799EFS—03
M34678
Fan
Auto
On
Off
Cool
Heat
Set
Hold
Run
E.M. Heat
Select the system setting
The SYSTEM switch can be set to control
your heating or cooling system, depending
on the season.
• Cool: Cooling system control.
• Off: All systems are off.
• Heat: Heating system control.
• Em Heat: Emergency & Auxiliary Heat
control. Compressor is locked out.
(Select models only.)
Set SYSTEM
switch to
control the
heating
or cooling
system.
CAUTION: EQUIPMENT DAMAGE
HAZARD. To prevent possible
compressor damage, do not operate
cooling system when outdoor
temperature is below 50°F (10°C).