PRO TH3110B Digital Thermostat
5
Operating Manual
4
Quick reference to display screen
Inside Set To
75 75
Heat On
Cool On
°°
Replace Batt
Current inside temperature
Low battery warning
Temperature setting
System switch
The SSYYSSTTEEMMswitch can be set to
control your heating or cooling
system,depending on the season.
When set to the Off position,the
thermostat will not activate the
heating or cooling system.
Set SSYYSSTTEEMMswitch to control the heating or
cooling system.
If flashing, compressor protection
is engaged (see page 8)
System status
On when “calling” for
heating or cooling;
flashes when waiting for
compressor restart (see
page 8)
CAUTION: EQUIPMENT DAMAGE
HAZARD. To prevent possible
compressor damage, do not operate
cooling system when outdoor
temperature is below 50°F (10°C).