PRO TH3110B Digital Thermostat Table of contents A A b b o o u u t t y y o o u u r r n n e e w w t t h h e e r r m m o o s s t t a a t t Thermostat features ...2...
Operating Manual About your new thermostat 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 •...
PRO TH3110B Digital Thermostat Quick reference to controls Digital display screen Fan switch On: Fan runs continuously Auto: Fan runs only when heating or cooling system is on Temperature buttons Press to adjust temperature settings System switch • Cool: Thermostat controls only the cooling system •...
Operating Manual Quick reference to display screen Current inside temperature Low battery warning If flashing, compressor protection is engaged (see page 8) Inside Set To ° ° Heat On Replace Batt Cool On Temperature setting System status On when “calling” for heating or cooling;...
PRO TH3110B Digital Thermostat System switch switch to control the heating or S S Y Y S S T T E E M M cooling system. switch can be set to S S Y Y S S T T E E M M control your heating or cooling system, depending on the season.
Operating Manual Fan switch switch to choose whether the fan F F A A N N runs continuously or only as needed. Set the switch to Auto or On. F F A A N N In “Auto” mode (the most commonly used setting), the fan runs only when the heating or cooling system is on.
PRO TH3110B Digital Thermostat Temperature controls Inside Set To ° ° Cool On Desired Temperature adjustment temperature buttons Press the temperature adjustment buttons until the temperature you want is displayed in the upper right portion of the screen. Note: Make sure the set to the system you want to control (Heat or Cool).
Operating Manual Built-in compressor protection Inside Set To ° ° Cool On Message flashes until safe restart time has elapsed This feature helps prevent damage to the compressor in your air conditioning or heat pump system. Damage can occur if the compressor is re- started too soon after shutdown.This feature forces the compressor to wait for a few minutes before restarting.
PRO TH3110B Digital Thermostat Battery replacement Grasp and pull to remove thermostat Turn thermostat over, insert fresh AA alkaline batteries, then reinstall thermostat Install fresh batteries immediately when the R R E E P P L L A A C C E E B B A A T T T T flashing.The warning flashes about...
Operating Manual In case of difficulty If you have difficulty with your thermostat, please try the suggestions below. Most problems can be corrected quickly and easily. Display is blank • Make sure fresh AA alkaline batteries are correctly installed (see page 9).
Page 13
PRO TH3110B Digital Thermostat In case of difficulty Temperature Make sure heating and cooling temperatures are set to acceptable ranges: settings do not • Heat: 40° to 90°F (4.5° to 32°C). change • Cool: 50° to 99°F (10° to 37°C).
. . h h o o n n e e y y w w e e l l l l . . c c o o m m / / y y o o u u r r h h o o m m e e . Or call Honeywell Customer Care toll-free at 1 1 - - 8 8 0 0 0 0 - - 4 4 6 6 8 8 - - 1 1 5 5 0 0 2 2 .
PRO TH3110B Digital Thermostat Limited 2-year warranty Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of two (2) years from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell's option).
Page 16
Limited 2-year warranty This warranty does not cover removal or reinstallation costs.This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer.
Page 17
This warranty gives you specific legal rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468- 1502.