System Switch (Heat/Cool) - Honeywell PRO TH4110B Operating Manual

PRO TH4110B Programmable Thermostat
System switch
Set switch to control the heating or
S S Y Y S S T T E E M M
cooling system.
The switch can be set to con-
S S Y Y S S T T E E M M
trol your heating or cooling system,
depending on the season.
• H H e e a a t t : : Thermostat controls only
the heating system.
• C C o o o o l l : : Thermostat controls only
the cooling system.
• O O f f f f : : Heating and cooling
systems are off.
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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