Honeywell RTH3100C User manual

Operating

Manual

RTH3100C

Non-Programmable Digital Thermostat

69-1890EF-1

Read and save these instructions.

® U.S. Registered Trademark. Patents pending.

Need Help?

For assistance with this product please visit http://yourhome.honeywell.com

or call Honeywell Customer Care toll-free at 1-800-468-1502

RTH3100C

About your new thermostat

Thermostat features...................................2

Quick reference to controls.......................3

Quick reference to display ........................4

Thermostat Operation

System switch (Heat/Cool)........................5

Fan switch (Auto/On) .................................6

Temperature controls.................................7

Compressor protection..............................8

Appendices

Battery replacement ..................................9

In case of difficulty...................................10

Customer assistance ............................... 12

Accessories............................................. .12

1-year limited warranty............................13

Table of contents

Operating Manual

Congratulations on the purchase of your new Honeywell thermostat. It has been

designed to give you many years of reliable service and easy-to-use, push-button

climate control.

Features

• One-touch temperature controls

• Large, clear backlit display is easy to read, even in the dark

• Switchable fan control (auto or continuous fan)

• Displays both room temperature and temperature setting

• Built-in compressor protection

About your new thermostat

RTH3100C

About your new thermostat

Temperature adjustment

Press to adjust temperature

settings.

Fan Switch (see page 6)

On: Fan runs continuously.

Auto: Fan runs only when

heating or cooling system is on.

Quick reference to controls

System switch (see page 5)

• Cool: Cooling system control.

• Off: All systems off.

• Heat: Heating system control.

• Em Heat: Emergency & Auxiliary

Heat control. Compressor is

locked out.

Digital display screen

Operating Manual

System Status

• Cool On: Cooling system is on.

• Heat On: Heating system is on.

• Em: Emergency heat is on.

• Aux: Auxiliary heat is on.

Quick reference to display screen

Heat On

Set To

Inside

Replace Batt

Current inside temperature Temperature setting

If flashing, compressor

protection is engaged

(see page 8).

Low battery warning

RTH3100C

The SYSTEM switch can be set to control

your heating or cooling system, depending

on the season.

• Cool: Cooling system control.

• Off: All systems are off.

• Heat: Heating system control.

• Em Heat: Emergency & Auxiliary Heat

control. Compressor is locked out.

System switch

Set SYSTEM switch to control the

heating or cooling system.

CAUTION: EQUIPMENT DAMAGE

HAZARD. Do not operate cooling

system when outdoor temperature

is below 50°F (10°C).

Operating Manual

Fan switch

Set the FAN switch to Auto or On.

In “Auto” mode (the most commonly used

setting), the fan runs only when the heat-

ing or cooling system is on.

If set to “On,” the fan runs continuously.

Use this setting for improved air circula-

tion, or for more efficient air cleaning.

Set FAN switch to choose whether the fan

runs continuously or only as needed.

RTH3100C

About your new thermostatTemperature controls

Press the temperature adjustment

buttons until the temperature you want

is displayed in the upper right portion of

the screen.

Note: Make sure the SYSTEM switch is set

to the system you want to control (Heat or

Cool).

Desired

temperature

Temperature

adjustment buttons

Cool On

Set To

Inside

Operating Manual

This feature helps prevent damage to the

compressor in your air conditioning or heat

pump system.

Damage can occur if the compressor is

restarted too soon after shutdown. This fea-

ture forces the compressor to wait for a few

minutes before restarting.

During the wait time, the display will flash the

message Cool On or Heat On. When the safe

wait time has elapsed, the message stops

flashing and the compressor turns on.

Message flashes until safe restart

time has elapsed.

Built-in compressor protection

Cool On

Set To

Inside

Other manuals for RTH3100C

Table of contents

Languages:

Other Honeywell Thermostat manuals

Honeywell

Honeywell PRO 2000 Series User manual

Honeywell

Honeywell VisionPRO TH8320U User manual

Honeywell

Honeywell VisionPRO TH8000 Series User manual

Honeywell

Honeywell RTH221B1047 User manual

Honeywell

Honeywell VisionPRO Series User manual

Honeywell

Honeywell RTH6500WF Wi-Fi Series User manual

Honeywell

Honeywell TL8130A1005 User manual

Honeywell

Honeywell CT3600 Installation and operating instructions

Honeywell

Honeywell T8000 User manual

Honeywell

Honeywell TL7135A User manual

Honeywell

Honeywell RTH9580 Wi-Fi User manual

Honeywell

Honeywell CT3400 User manual

Honeywell

Honeywell TB7100A1000 - MultiPro Commercial Thermostat Operation manual

Honeywell

Honeywell T841A User manual

Honeywell

Honeywell CT3451 User manual

Honeywell

Honeywell Lyric T6 Pro Wi-Fi User manual

Honeywell

Honeywell RLV3120 User manual

Honeywell

Honeywell Lyric T5 Wi-Fi User manual

Honeywell

Honeywell Y6630D1007 Owner's manual

Honeywell

Honeywell RTH7500 Series User manual

Honeywell

Honeywell 8160 User manual

Honeywell

Honeywell T7200 User manual

Honeywell

Honeywell PRO TH4000 series User manual

Honeywell

Honeywell T834H User manual

Popular Thermostat manuals by other brands

EWELLY

EWELLY EW-181 manual

Prolon

Prolon T1100 Hardware guide

Computherm

Computherm Q20 operating instructions

Heatmiser

Heatmiser neoStat user manual

Aube Technologies

Aube Technologies TH111GFCI-NP 240 VCA user manual

Mars

Mars HEAT CONTROLLER IR Wireless Thermostat user manual

Saswell

Saswell SAS920XWHB-7-S-RF User manual and warranty card

Aircalo

Aircalo TFP1-ET85P2 operating manual

Carrier

Carrier DEBONAIR 33CS Installation and operating instructions

Lennox

Lennox iHarmony Zone Thermostat Installation and setup guide

Gemtech

Gemtech GT7000 Operation

Rollei

Rollei Smartes 45000 manual

Sinope

Sinope TH1300RF user guide

NuTone

NuTone NTBZ48 Installation & operation guide

Stelpro

Stelpro MAESTRO ASMT402AD user guide

Aube Technologies

Aube Technologies TH305 owner's guide

Powtier Controls

Powtier Controls 505MST instruction manual

Kanmor

Kanmor Zone Control 369e manual