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Most Recent Honeywell T8112C Questions
What Is Replaced Model For Honeywell T8112c1031 Which Will Be Pin To Pin Compati
(Posted by benzhang2016 2 years ago)
T8112c1007 Is Not Working How Do I Replace It.
My honeywell t8112c1007 is not working how do I replace it. Not working how do I replace it and what...
My honeywell t8112c1007 is not working how do I replace it. Not working how do I replace it and what...
(Posted by alagrande 4 years ago)
Fan Switch
If I flip the switch to fan why don't it turn on do I have to press enter?
If I flip the switch to fan why don't it turn on do I have to press enter?
(Posted by Dscustomcabinets 9 years ago)
Bat Lo
I replaced the batteries. Now has no digital display. Was NOT set to "off" before batteries taken ou...
I replaced the batteries. Now has no digital display. Was NOT set to "off" before batteries taken ou...
(Posted by adalton67 10 years ago)
Retirement Mode
Leave/Return is set up on my parent's programmable thermostat. They areretired and don't need this. ...
Leave/Return is set up on my parent's programmable thermostat. They areretired and don't need this. ...
(Posted by BridgettVA 11 years ago)
Popular Honeywell T8112C Manual Pages
Owner's Manual - Page 1
Registered Trademark © 2004 Honeywell International Inc. Electronic Programmable Thermostat
Owner's Manual
® U.S. All Rights Reserved
69-0862-4
Owner's Manual - Page 2
Table of Contents
Programming Your Thermostat 3 Program Schedule 5 Set Current Time/Day 6 Heating Program 6 Cooling Program 7
Operating Your Thermostat 7 Using Programming Features 7 Setting Fan Switch 8 Setting System Switch 9
Maintaining Your Thermostat 9 Installing Batteries 9
Troubleshooting Guide 12 Limited One-Year Warranty 17
2
69-0862-4
Owner's Manual - Page 3
... the heating/cooling equipment after an energy saving period. For instructions on the heating/cooling equipment after an energy saving period. WAKE is the time the thermostat turns on installing or replacing the batteries, refer to Maintaining Your Thermostat section.
When deciding what time to set for an energy-saving temperature while you are away at...
Owner's Manual - Page 4
...weekends because your requirements will set for an energy-saving temperature while you desire for all periods if your schedule does not require
4
69-0862-4
NOTE: Use of your finger or a soft pencil eraser.
Also, you make an error at any time during the...to give the furnace a head start to heat the house before you decide not to program the thermostat, it .
If you arrive home.
Owner's Manual - Page 5
... extra lead time, based on outside temperature and furnace response time, to give your furnace a head start to heat the house. b The temperatures cannot be set higher than 88°F (26°C) or lower than 45°F (7°C).
5
69-0862-4
Owner's Manual - Page 6
... the Set Schedule key once. Set Current Time/Day
To set the day, press and release the Set Clock/Day key again. This guide can be used for Mon-Fri.
Heating Program
With the System switch set the System switch to program WAKE temperature for programming your new thermostat. WAKE, Mon-Fri, and SET appear on the thermostat left...
Owner's Manual - Page 7
... SET COOLER TEMPERATURE
M8473
Cooling Program
WIth System switch at the next scheduled program change cancels itself at Cool, follow the same instructions as desired.
Press and release Run Program key to program WAKE temperature for SLEEP. After programming, adjust the Fan and System switches, as for current period only- Operating Your Thermostat...
Owner's Manual - Page 8
...- Hold a temperature indefinitely-Press Hold Temp key once.
Setting Fan Switch
Fan switching positions are: Auto: Normal setting for more efficient electronic air cleaning.
8
69-0862-4 Permanently Change a program-...Change or Hold features, pressing this key cancels your change. Check Programs-Press Set Schedule key repeatedly to the normal program or the starting program-Press Run Program...
Owner's Manual - Page 9
... Off Heat
SYSTEM SWITCH
M5783
1. Install the fresh batteries, making sure
the positive and negative terminals are off. Off: Both heating and air conditioning systems
are oriented correctly.
9
69-0862-4 Setting System Switch
System switching positions control thermostat operation: Cool: Thermostat controls air conditioning
system.
Make sure the thermostat is set in the Off position...
Owner's Manual - Page 11
See Programming Your Thermostat section for instructions.
11
69-0862-4
If the new batteries are dead or incorrectly installed and the thermostat has to be reprogrammed. If the display is blank, the batteries are installed within 20 to 30 seconds of removing the old ones, the thermostat does not have to be reprogrammed. To remove batteries, press down on the left ends.
Owner's Manual - Page 12
... and installed correctly. • Gently clean battery contacts using a soft pencil eraser.
Do not use anything abrasive on .
• Set the ...setting limit is 45 to 88°F (7 to reset thermostat. The setting lower than 45°F (7°C) or higher than range is reached.
Reprogram, if necessary.
12
69-0862-4 Then... Correctly replace batteries. Troubleshooting Guide...
Owner's Manual - Page 13
...; Check that System switch on . Heating does not come on thermostat is set to Heat.
Allow a minimum of five minutes for time-guard protection to expire.
• Check the system fuse or circuit breaker and replace or reset, if necessary.
• If display is set to expire.
• Check the system fuse or circuit...
Owner's Manual - Page 14
.... Allow at least five minutes after ten minutes and the System On indicator is installed.
14
69-0862-4 If air conditioner does not come on (Cont)
Then...
• The thermostat has a built-in time delay on after changing the setting before the air conditioner starts.
• Make sure outdoor disconnect is lit, move...
Owner's Manual - Page 15
... time for the furnace to heat up to within +/- 1°.
Thermostat current temperature setting does not match the display temperature to 30 minutes after the recovery period.
• The thermostat is coming from setback or setup, setting and display temperature can differ for the current setting and display temperature to differ occasionally.
• During recovery from...
Owner's Manual - Page 17
If the product is defective or malfunctions, Honeywell shall repair or replace it (at Honeywell's option) within a reasonable period of time. Limited One-Year Warranty
Honeywell warrants this product to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of the malfunction, and mail...
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