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Honeywell T8112C User Manual

Honeywell T8112C
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9 69-0862—4
Setting System Switch
System switching positions control thermostat
operation:
Cool: Thermostat controls air conditioning
system.
Off: Both heating and air conditioning systems
are off.
Heat: Thermostat controls heating system.
Maintaining Your Thermostat
Installing Batteries
IMPORTANT
Batteries must be installed for pro-
gramming and operation of the ther-
mostat and heating/cooling system.
1. Purchase two AA alkaline batteries; non-
alkaline batteries do not last as long and
can leak, causing damage to the thermo-
stat or wall surface.
2. Make sure the thermostat is set in the Off
position.
3. Use a coin to remove the battery door.
4. Install the fresh batteries, making sure
the positive and negative terminals are
oriented correctly.
M5783
Auto On
Fan
Cool Off Heat
System
FAN SWITCH
SYSTEM
SWITCH
T
U
AM
LE
A
VE

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Honeywell T8112C Specifications

General IconGeneral
BrandHoneywell
ModelT8112C
CategoryThermostat
LanguageEnglish

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