Honeywell T8501D- Manual
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Table of Contents:
- Page 2 – T8501D DELUXE ZONE THERMOSTAT; Wiring; CAUTION; Loosen the terminal screws on the wallplate and; prevent drafts from affecting the thermostat.
- Page 3 – Mounting Thermostat
- Page 4 – SETTINGS; System and Fan Settings; INSTALLER SETUP; IMPORTANT
- Page 6 – INSTALLER SYSTEM-TEST
- Page 7 – THERMOSTAT INFORMATION
- Page 8 – Press the increase; CHECKOUT; Symptom
- Page 9 – Troubleshooting Guide
- Page 12 – Helping You Control Your World
X-XX UL
INSTALLATION INSTRUCTIONS
®U.S. Registered Trademark
Copyright © 1997 Honeywell Inc. • • All Rights Reserved
T8501D
Deluxe Zone Thermostat
APPLICATION
The T8501 Deluxe Zone Thermostat provides electronic control of 24 Vac single-stage zoned heating and cooling systems.
Refer to Table 1 for a general description of the thermostat.
Table 1. Description of T8501 Thermostat.
RECYCLING NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do
not place your old
control in the trash.
Contact your local waste management authority for
instructions regarding recycling and the proper
disposal of the old thermostat.
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow
the instructions can damage the product or cause a
hazardous 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 completing installation, use these instructions
to check out the product operation.
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 sun or appliances.
—
concealed pipes and chimneys.
—
unheated (uncooled) areas such as an outside wall
behind the thermostat.
Wallplate Installation
The thermostat can be mounted horizontally on the wall or
on a 2 in. x 4 in. wiring box. Position wallplate horizontally
on the wall or on a 2 in. x 4 in. wiring box.
1. Position and level the wallplate (for appearance
only). The thermostat will function properly even
when not level.
2. Use a pencil to mark the mounting holes. See Fig. 2.
3. Remove the wallplate from the wall and drill two
3/16 inch holes in the wall (if drywall) as marked. For
firmer material such as plaster, drill two 7/32 inch
holes. Gently tap anchors (provided) into the drilled
holes until flush with the wall.
4. Position the wallplate over the holes, pulling wires
through the wiring opening.
5. Loosely insert the mounting screws into the holes.
6. Tighten mounting screws.
Model
Application
Powering Method
Changeover
System Selection
Fan Selection
T8501D Zone 1 on MABS II or
TotalZone® system
Requires common wire to
power supply
Automatic or
Manual
Heat-Off-Cool-Auto
On-Auto
/
69-1049-1
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Summary
69-1049—1 2 T8501D DELUXE ZONE THERMOSTAT Fig. 1. Typical location of thermostat. Fig. 2. Mounting the wallplate. Wiring All wiring must comply with local electrical codes andordinances. Refer to Fig. 3 and 4 for typical hookups. Aletter code is located near each terminal for identification. CAUTION...
69-1049—1 3 T8501D DELUXE ZONE THERMOSTAT Fig. 3. Typical wiring diagram for T8501D with zone 1 MABS II control panel. Fig. 4. Typical wiring diagram for T8501D with zone 1 TotalZone® control panel. Fig. 5. Proper wiring technique. Mounting Thermostat 1. Engage tabs at the top of the thermostat and ...
69-1049—1 4 T8501D DELUXE ZONE THERMOSTAT SETTINGS System and Fan Settings System settings control the thermostat operation asfollows: Heat: The thermostat controls the heating.Off: Both the heating and cooling are off.Cool: The thermostat controls the cooling.Auto: The thermostat automatically chan...
