PRODUCT DATA
® U.S. Registered Trademark
Copyright © 1998 Honeywell Inc. • • All Rights Reserved
T8700B,CAn Electronic Round™
Programmable ThermostatAPPLICATION
The T8700 Electronic Round™ Programmable Thermostats
provide single-stage, programmable temperature control for
24V heating and/or cooling systems. See Table 1 for model
descriptions.
Table 1. T8700 Thermostat Description.
FEATURES
•Attractive neutral styling complements any decor.
•Easy-to-use means fewer homeowner questions and
increased homeowner satisfaction.
•Large easy-to-read display.
•Keys located near the display for easy access.
•Fan and System switches are located on the top of the
wallplate to eliminate accidental setting changes.
•Quick and easy installation.
Two-period programming for added energy savings.
• Manual changeover from heat to cool eliminates
unexpected system operation (T8700C).
•°F or °C temperature display for added model
flexibility.
•Selectable heating cycle rate (1, 3, 6 or 9 cph) allows a
variety of applications and reduced inventory.
•Cooling (T8700C) cycle rate fixed at 3 cph (the standard
setting for compressors) allows a speedy installation.
•Programming permanently held in memory (no
batteries needed) and retained during power outages
for increased installer and homeowner convenience.
•Compatible with most equipment and application
needs including gas, oil and electric forced air;
condensing gas furnaces; hydronic heat; and gravity
and radiant heat systems.
•Powerstealing eliminates need to run additional wires.
Contents
Application........................................................................... 1
Features.............................................................................. 1
Specifications...................................................................... 2
Ordering Information ........................................................... 2
Installation ........................................................................... 3
Settings and Adjustments ................................................... 6
Setting the Clock................................................................. 7
Programming....................................................................... 7
Operation ............................................................................ 8
Checkout............................................................................. 10
Troubleshooting...................................................................11
68-0197-1
T8700C
Model System
Selection Fan
Selection
Wiring
Terminals
Used
T8700B1007 HEAT-OFF NONE R,W
T8700B1015 HEAT-OFF ON-AUTO R,G,W
T8700C1005 HEAT-OFF-
COOL ON-AUTO R,G,W,Y