RTH2300/RTH221
7 69-2727ES—01
M33612
Heat Off Cool
Auto On
Fan
Heat Off Cool
Auto On
Fan
Set
Hold
Run
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.
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).