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SETTINGS
Setting SYSTEM and FAN Keys
Change System and Fan settings with System
and Fan keys inside thermostat door.
First set the SYSTEM key:
Cool: Normal setting for months when your
home needs air conditioning. Digital
display shows snowflake when
cooling is on.
Off: Both heating and cooling are off.
Heat: Normal setting for months when your
home needs heating. Digital display
shows flame when heating is on.
Auto: Setting for between seasons when
thermostat selects cooling or heating.
NOTE: Em.Ht. is available only on T8511 Heat
Pump models.
Em. Ht.: Setting when your home needs heat,
but your equipment needs servicing
or is not working correctly. The
thermostat controls only the backup
heat. The heat pump is off.
M20567A
i
Press to select
heating or cooling
equipment.
Em. Ht.
-Emergency heating
Heat— Heating equipment
Off —No equipment
Cool—Cooling equipment
Auto—Thermostat
automatically selects
heating and cooling
equipment.
Press to select
heating or cooling
equipment.
On— Fan runs continuously
Auto—Fan runs when
heating or cooling
equipment operates
System
System
System
Fan
Fan
Fan
LED INDICATOR ON SELECT T8511 MODELS.
(Select
Models)