Honeywell Thermostat T8112D- User Manual
Honeywell Thermostat T8112D– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – T8112D PROGRAMMABLE THERMOSTAT; SPECIFICATIONS; IMPORTANT; Cooling: Factory set at 3 cph; ORDERING INFORMATION; Relations
- Page 3 – INSTALLATION; When Installing this Product...; CAUTION; Location; Wiring Thermostat; System Type
- Page 5 – Adjust Fan Operation Switch, as Required; Install Batteries; Adjust System On-Time as Required
- Page 6 – Mounting Thermostat; PROGRAMMING THE THERMOSTAT; Set the Current Time/Day; To set the system switch to HEAT:; Cooling Program; To hold a temperature indefinitely:
- Page 7 – To check the current temperature setting:; CHECKOUT AND SETTINGS; Fan Switch; Heating
- Page 8 – TROUBLESHOOTING; IF...
PRODUCT DATA
® U.S. Registered Trademark
Copyright © 1998 Honeywell Inc. • All Rights Reserved
T8112D
Programmable Thermostat
GENERAL
The T8112D Programmable Thermostat provides energy
savings for single-stage heating and cooling applications
while providing reliable, precise temperature control.
FEATURES
•
HEAT-OFF-COOL System switch.
•
AUTO-ON Fan switch.
•
Separate programs for weekdays and weekends
(5 day/2 day).
•
Digital LCD display.
•
Easy to program and install.
•
Precise temperature control.
•
Four daily energy saving programs.
•
Compatible with most 24 Vac standing pilot, gas
electronic ignition, oil or central electric systems.
•
Requires two AA alkaline batteries.
•
LCD flashes
bAt Lo indicating low battery power.
•
Isolated heating/cooling circuits.
Contents
General ............................................................................... 1
Features ..............................................................................
1
Specifications ......................................................................
2
Ordering Information ...........................................................
2
Installation ........................................................................... 3
Programming the Thermostat .............................................
6
Checkout and Settings ........................................................
7
Troubleshooting ................................................................... 8
68-0206
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Summary
T8112D PROGRAMMABLE THERMOSTAT 68-0206 2 SPECIFICATIONS IMPORTANT The specifications given in this publication do notinclude normal manufacturing tolerances; therefore,an individual unit might not exactly match the listedspecifications. Also, this product is tested andcalibrated under closely contro...
T8112D PROGRAMMABLE THERMOSTAT 68-0206 3 INSTALLATION When Installing this Product… 1. Read these instructions carefully. Failure to follow the instructions can damage the product or cause ahazardous condition. 2. Check the ratings given in the instructions and on the product and in the compatibilit...
T8112D PROGRAMMABLE THERMOSTAT 68-0206 5 Fig. 8. 5-wire heat/cool application (jumper removed). Adjust Fan Operation Switch, as Required The thermostat fan operation switch, labeled FUEL SWITCH(see Fig. 9) is factory set in the F position. This is the correctsetting for most systems. If you have an ...
