Instruction/ maintenance manual of the product T8700B Honeywell
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PRODUCT DA T A ® U.S. Registered Trademark Copyright © 1998 Honeywell Inc. • • All Rights Reserved T8700B,C An Electronic Round ™ Programmable Thermostat APPLICA TION The T8700 Electronic Round™ Programmab le Ther mostats provide single-stage , programmable temperature control f or 24V heating and/or cooling systems.
T8700B,C AN ELECTR ONIC ROUND™ PR OGRAMMABLE THERMOST A T 68-0197—1 2 ORDERING INFORMA TION When purchasing replacement and modernization products from your TRADELINE® wholesaler or distr ib utor , refer to the TRADELINE® Catalog or price sheets for the complete ordering number .
T8700B,C AN ELECTR ONIC ROUND PR OGRAMMABLE THERMOST A T 68-0197—1 3 INST ALLA TION When Installing this Product… 1. Read these instructions carefully .
T8700B,C AN ELECTR ONIC ROUND™ PR OGRAMMABLE THERMOST A T 68-0197—1 4 Fig. 3. Mounting decorator co ver plate and wallplate on wall (T8700C shown). W iring CA UTION Damage T o Heating/Cooling System Possib le . Be careful when handling wires during installation.
T8700B,C AN ELECTR ONIC ROUND PR OGRAMMABLE THERMOST A T 68-0197—1 5 Fig. 7. T8700C heat-cool wiring diagram in single trans- f ormer system with gas or electric heat/electric cooling. Fig. 9. T8700B1007 Heat Only wiring diagram in electric baseboard or ceiling cab le system.
T8700B,C AN ELECTR ONIC ROUND™ PR OGRAMMABLE THERMOST A T 68-0197—1 6 Adjust Fan Operation Switch The ther mostat f an operation s witch, labeled Fuel switch, is set at the factory in the F position. See Fig. 12. This is the correct setting for most systems .
T8700B,C AN ELECTR ONIC ROUND PR OGRAMMABLE THERMOST A T 68-0197—1 7 2. Set your W AKE time. a. Press the ke y once. Y ou will see a flashing W AKE time. b. Use the or ke ys to set your desired W AKE time. The W AKE time is now set. 3. Set your W AKE temperature.
T8700B,C AN ELECTR ONIC ROUND™ PR OGRAMMABLE THERMOST A T 68-0197—1 8 3. Select Fahrenheit - Celsius T emperature. a. Press to display the current ° F or ° C setting. b. Use or to choose between ° C and ° F. 4. Clock Format. a. Press to display the current 12- or 24-hour clock setting.
T8700B,C AN ELECTR ONIC ROUND PR OGRAMMABLE THERMOST A T 68-0197—1 9 OPERA TION Zero Droop Performance The T8700 Ther mostat can control temper ature closer to setpoint than electromechanical thermostats. This is because propor tional plus integr al control (P + I) maintains a constant indoor temperature independent of the outdoor temperature .
T8700B,C AN ELECTR ONIC ROUND™ PR OGRAMMABLE THERMOST A T 68-0197—1 10 Ta b le 5. Sequence of Operations. a When fuel s witch is in the E position.
T8700B,C AN ELECTR ONIC ROUND PR OGRAMMABLE THERMOST A T 68-0197—1 11 TROUBLESHOOTING Symptom Possible Cause Corrective Action Heating/cooling equipment does not operate. No ac power. Check power to heating/cooling equipment: — On/Off switch. — Fuse or circuit breaker.
T8700B,C AN ELECTR ONIC ROUND™ PR OGRAMMABLE THERMOST A T 68-0197—1 12 Honeywell Europe S.A. 3 Avenue du Bourget 1140 Brussels Belgium Honeywell Asia Pacific Inc.
An important point after buying a device Honeywell T8700B (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 T8700B 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 T8700B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell T8700B you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell T8700B will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell T8700B, 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 T8700B.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell T8700B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell T8700B 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
