Instruction/ maintenance manual of the product T8112D Honeywell
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PRODUCT DA T A ® U.S. Registered Trademark Copyright © 1998 Honeywell Inc. • All Rights Reserved T81 12D Programmable Thermostat GENERAL The T8112D Programmab le Thermostat provides energy savings f or single-stage heating and cooling applications while providing reliab le, precise temperature control.
T8112D PROGRAMMABLE THERMOST A T 68-0206 2 SPECIFICA TIONS IMPORT ANT The specifications given in this pub lication do not include nor mal man ufacturing tolerances; theref ore, an individual unit might not e xactly match the listed specifications.
T8112D PROGRAMMABLE THERMOST A T 68-0206 3 INST ALLA TION When Installing this Product… 1. Read these instructions carefully . F ailure to f ollow the instructions can damage the product or cause a hazardous condition.
T8112D PROGRAMMABLE THERMOST A T 68-0206 4 Fig. 3. Proper wiring tec hnique. M1712A JUMPER (FACTORY- INSTALLED) REMOVE IF 5-WIRE SYSTEM INSERT STRAIGHT UNDER SCREW HEAD 5/16 in. (8 mm) STRIP END OF WIRE VISIBLE HERE R R c WY G Fig. 4. Holding thermostat while installing.
T8112D PROGRAMMABLE THERMOST A T 68-0206 5 Fig. 8. 5-wire heat/cool application (jumper remo ved). Adjust Fan Operation Switch, as Required The ther mostat f an operation switch, labeled FUEL SWITCH (see Fig. 9) is factory set in the F position. This is the correct setting for most systems .
T8112D PROGRAMMABLE THERMOST A T 68-0206 6 Fig. 10. Removing battery door . M5781 Fig. 11. Installing batteries. Mounting Thermostat 1. Engage the tabs at the top of the ther mostat and mounting plate. See Fig. 12. 2. Press the lower edge of the case to latch.
T8112D PROGRAMMABLE THERMOST A T 68-0206 7 T o check the current temperature setting: Press the Run Program k ey . (When using TEMPORARIL Y CHANGE or HOLD , pressing this key will cancel the change or hold.) T o check the programs: 1. Press the Schedule ke y repeatedly to see each time and temperature.
T8112D PROGRAMMABLE THERMOST A T 68-0206 8 Home and Building Control Honeywell Limited-Honeywell Limitée 155 Gordon Baker Road North York, Ontario M2H 3N7 68-0206 L.
An important point after buying a device Honeywell T8112D (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Honeywell T8112D yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Honeywell T8112D - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell T8112D you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell T8112D will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell T8112D, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Honeywell T8112D.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell T8112D. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell T8112D along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
