Honeywell RTH4300B User Manual

Operating Manual
6
About your new thermostatSelect the sytstem setting
The SYSTEM switch can be set to control
your heating or cooling system, depend-
ing 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).

Honeywell RTH4300B Specifications

General

Brand	Honeywell
Model	RTH4300B
Category	Thermostat
Language	English