Honeywell RTH3100C User manual

RTH3100C
Honeywell
Operating
Manual
69-1892ES-1
Non-Programmable Digital Thermostat

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RTH3100C
Table of ontents
About your new thermostat
Thermostat features ................................... 2
Qui k referen e to ontrols ....................... 3
Qui k referen e to display ........................ 4
Thermostat Operation
System swit h (Heat/Cool) ........................ 5
Fan swit h (Auto/On) ................................. 6
Temperature ontrols ................................. 7
Compressor prote tion .............................. 8
Appendi es
Battery repla ement .................................. 9
In ase of diffi ulty ................................... 10
Customer assistan e ............................... 12
A essories .............................................. 12
1-year limited warranty ............................ 13
1

Operating Manual
About your new thermostat
Congratulations on the pur hase of your new Honeyw ell therm ostat. It has been
designed to give you m any years of reliable servi e and easy-to-use, push-button
lim ate ontrol.
Features
• O ne-tou h tem perature ontrols
• Large, lear ba klit display is easy to read, even in the dark
• S w it hable fan ontrol (auto or ontinuous fan)
• Displays both room tem perature and tem perature setting
• Built-in om pressor prote tion
2

RTH3100C
Qui k referen e to ontrols
On: Fan runs ontinuously.
Auto: Fan runs only when
heating or ooling system is on.
Temperature adjustment
Press to adjust tem perature
settings.
System swit h (see page 5)
• Cool: Cooling system ontrol.
• Off: All system s off.
• Heat: Heating system ontrol.
• Em Heat: Em ergen y & Auxiliary
Heat ontrol. Com pressor is
lo ked out.
3

Operating Manual
Qui k referen e to display s reen
Current inside temperature
Low battery warning
Temperature setting
System Status
• Cool On: Cooling system is on.
• Heat On: Heating system is on.
• Em: Emergen y heat is on.
If flashing, ompressor
prote tion is engaged
(see page 8). •
• Aux: Auxiliary heat is on.
4

System swit h
heating or ooling system.

RTH3100C
The SYSTEM swit h an be set to ontrol
your heating or ooling system , depending
on the season.
• Cool: Cooling system ontrol.
• Off: All system s are off.
• H eat: Heating system ontrol.
• E m H eat: Em ergen y & Auxiliary Heat
ontrol. Com pressor is lo ked out.
CAUTION: EQUIPMENT DAMAGE
HAZARD. Do not operate ooling
system when outdoor temperature
is below 50°F (10°C).
5

Operating Manual
Fan swit h
Set FAN swit h to hoose whether the fan
runs ontinuously or only as needed.
Set the FAN sw it h to Auto or On.
In “Auto ” m ode (the m ost om m only used
setting), the fan runs only w hen the heat
ing or ooling system is on.
If set to “O n,” the fan runs ontinuously.
Use this setting for im proved air ir ula
tion, or for more effi ient air leaning.
6

RTH3100C
Temperature ontrols
Press the tem perature adjustm ent
buttons until the tem perature you w ant
is displayed in the upper right portion of
the s reen.
Note: M ake sure the SYSTEM swit h is set
to the system you w ant to ontrol (H eat or
Cool).
7