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Honeywell T8002 Installation Instructions Manual
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Honeywell T8002 Installation Instructions Manual

Honeywell T8002 Installation Instructions Manual

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This is a legacy product document
supported by Resideo. It is no
longer manufactured
APPLICATION
The T8002 Thermostat provides single-stage, program-
mable temperature control for 24 Vac heating-cooling
systems with manual changeover from heat to cool. See
Table 1. Heating cycle rate is selectable at 1, 3, 4, 5, 6, 9,
or 12 cph. Cooling cycle rate is fixed at 3 cph. Temper-
ature indication can be set for °F or °C. See Table 1.
The T8002 Thermostat is powered with three AA alkaline
batteries. Setpoints and programming are held
permanently by non-volatile memory.
The T8002 Thermostat includes a thermostat, wallplate,
batteries, and Owner's Guide.
MERCURY NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of it properly.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of a control.
Model
System
T8002
Heat-Cool
® U.S. Registered Trademark
Copyright © 2002 Honeywell •
Programmable Thermostat
Table 1. T8002 Thermostat Description.
Changeover
System Selection
Manual
Cool-Off-Heat
•All Rights Reserved
INSTALLATION INSTRUCTIONS
INSTALLATION
When Installing this Product ...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazard-
ous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Hazardous Voltage.
Can damage heating/cooling system.
Disconnect power at furnace or main breaker/
fuse box.
Location
Install the thermostat about 5 ft (1.5m) above the floor in
an area with good air circulation at average temperature.
See Fig. 1. Do not install the thermostat where it can be
affected by:
— drafts or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from the sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) areas such as an outside wall
behind the thermostat.
Fan Selection
Auto-On
T8002
Powering Method
Batteries
69- 1549

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Summary of Contents for Honeywell T8002

  • Page 1 °F or °C. See Table 1. 2. Check the ratings given in the instructions and on the product to make sure the product is suitable for The T8002 Thermostat is powered with three AA alkaline your application. batteries. Setpoints and programming are held 3.

  • Page 2: Mounting Wallplate To Wall

    T8002 PROGRAMMABLE THERMOSTAT 5 FEET [1.5 METERS] M11338 Fig. 1. Selecting typical thermostat location. Mounting Wallplate to Wall Wiring IMPORTANT IMPORTANT Level only for appearance. The thermostat func- Use an 18-gauge maximum wire to wire the tions normally even when not level.
  • Page 3 T8002 PROGRAMMABLE THERMOSTAT The thermostat is adaptable to most 18 to 30 Vac heating-cooling systems. Refer to Fig. 5, 6 and 7 for TERMINAL FOR WRAPAROUND FOR STRAIGHT typical wiring hookups. SCREW INSERTION STRIP STRIP 7/16 IN. (11 MM) 5/16 IN. (8 MM)

  • Page 4: Mounting Thermostat To Wallplate

    T8002 PROGRAMMABLE THERMOSTAT T8002 THERMOSTAT DASHED LINES INDICATE TABS ON BACK OF THERMOSTAT RELAY COOL CHANGEOVER VALVE COMPRESSOR CONTACTOR HEAT CHANGEOVER VALVE (HOT) TRANSFORMER ENGAGE TABS AT TOP OF THERMOSTAT WITH SLOTS ON WALLPLATE. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

  • Page 5: Installer Setup

    T8002 PROGRAMMABLE THERMOSTAT c. Release the keys to display the three-digit soft- ware revision code. (Information displayed var- AA BATTERIES (3) ies by model.). H o l d T U E S e l e M12583 d. Press the key. FC (factory configuration) is displayed.

  • Page 6: Operation

    T8002 PROGRAMMABLE THERMOSTAT b. Press the key to change the °C or °F a. Press the key to save all changes and return indication. to normal operation. M12586A M12590A 3. Setting Heat Cycle Rate (see Table 2 for the cycle rate options and equipment).
  • Page 7 T8002 PROGRAMMABLE THERMOSTAT Table 3. Preprogrammed Time and Temperature Settings. Heat Cool Period Time Setpoint Setpoint Wake 6:00 AM 70°F (21°C) 78°F (26°C) H o l d T U E S e l e Leave 8:00 AM 62°F (17°C) 85°F (29°C)
  • Page 8 T8002 PROGRAMMABLE THERMOSTAT IMPORTANT Be sure all equipment responds correctly to the 1. Slide the System switch to Off and the Fan switch thermostat. to On. The fan should run continuously. 2. Slide the Fan switch to Auto. The fan should turn off.

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