Honeywell RTH4300B Owner's Manual - Page 8
About your new thermostat, Select the sytstem setting - thermostat manual
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Operating Manual ASebloeuctt ytohuersnyetswtetmhesrmetotisntgat 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).
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Operating Manual
´
About your new thermostat
Select 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).