Honeywell RTH2300 Series Operating Manual page 9

Select the system setting
Set
Hold
Run
Heat Off Cool
Heat Off Cool
Set SYSTEM switch to control the
heating or cooling system.
Fan
Fan
Auto On
Auto On
M33612
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.
CAUTION: EQUIPMENT DAMAGE
HAZARD. To prevent possible
compressor damage, do not operate
cooling system when outdoor
temperature is below 50°F (10°C).
7
RTH2300/RTH221
69-2727EF—03