APPLICATION
The T8000C, T8001C and T8024D Programmable
Thermostats provide programmable temperature control for
24 Vac heating-cooling systems with manual changeover
from heat to cool. The T8000C and T001C provide single-
stage heating and cooling control and the T8024D provides
two-stage heating and two-stage cooling contorl. Heating
cycle rates are selectable at 1, 3, 4, 5, 6, 9, or 12 cph.
Cooling cycle rates are fixed at 3 cph. Temperature indication
can be set for °F or °C.
The T8000C is powered through the heating/cooling system
controls. The T8001C and T8024D are powered directly
through the system transformer.
® U.S. Registered Trademark
Copyright © 2001 Honeywell •
T8000C, T8001C,T8024D
Programmable Thermostats
• All Rights Reserved
FEATURES
• Attractive styling complements any decor to the
homeowner s delight.
• Preprogrammed for your convenience.
• Program up to four time periods and temperature
setpoints to complement your lifestyle.
• Programs are permanently held in non-volatile memory
in the event of a power failure.
• Indefinite setpoint temperature hold for added comfort
and energy savings.
• Ease-of-use means fewer homeowner questions and
increased homeowner satisfaction.
• Large temperature display for quick easy readability.
• Conveniently sized thermostat (5-1/2 x 3-1/2) with
optional decorator cover plates (7-3/8 x 5-3/4) make it
easy to install in a variety of locations.
• Keys are located by the display for easy access.
• FAN and SYSTEM switches are located on the lower
edge to eliminate accidental setting changes.
• Easy installation, setup and self-test saves time and
increases installer productivity.
• Manual changeover from heat to cool eliminates
unexpected system operation.
°
°
•
F or
C temperature display for added model flexibility.
• Selectable heating cycle rate (1, 3, 4, 5, 6, 9 or 12 cph) for
a variety of applications which reduces the amount of
inventory.
• Cooling cycle rate is fixed (3 cph), the standard setting
for compressors, for speedy installation.
• Setpoints are permanently held in non-volatile memory
(no batteries required) and retained during power
outages for increased installer and homeowner
convenience.
• Power stealing and hardwired models available for
virtually all equipment and application needs including;
gas, oil and electric forced air, condensing gas furnaces,
forced air zoning systems, single stage heat pumps,
hydronic heat, gravity and radiant floor heat systems.
Application .......................................................................... 1
Features .............................................................................. 1
Specifications ...................................................................... 2
Installation ........................................................................... 3
Installer Setup ..................................................................... 6
Operation ............................................................................ 8
Checkout ............................................................................. 9
Troubleshooting .................................................................. 12
PRODUCT DATA
Contents
68-0195-2