Honeywell Q7100A,C,D Thermostat Subbases Installation Guide
- June 9, 2024
- Honeywell
Table of Contents
Honeywell Q7100A,C,D Thermostat Subbases
APPLICATION
The Q7100 Thermostat Subbases provide electronic control of commercial 24 Vac single or multistage heat pump or conventional heating and cooling systems. Select models have terminals for light emitting diodes LEDs, remote temperature sensors and remote setback timer. The LED models have up to two field configurable LEDs and up to two factory assigned LEDs. Refer to Table
- All Q7100 Thermostat Subbases require a common wire to the supply power.
Table 1. Description of Q7100 Subbases.
| Q7100 | Use | System | Stages a | Figs. |
|---|---|---|---|---|
| T7100 | Heat | Cool | ||
| A | D or F | Conventional | 1 or 2 | 1 or 2 |
| C | E or F | Heat pump | 1, 2 or 3 | 1 or 2 |
| D | E or F | Heat pump | 1 or 2 | 1 or 2 |
a Depends on the model.
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…
- Read these instructions carefully. Failure to follow the instructions can damage the product or cause a hazardous condition.
- Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.
- Installer must be a trained, experienced service technician.
- After completing installation, use these instructions to check out the product operation.
CAUTION
Disconnect power supply to prevent electrical shock or equipment damage.
Location
Subbase without Remote-Mounted Temperature Sensor Install the subbase 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 subbase 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 ehind the thermostat.
Subbase with Remote-Mounted Temperature Sensor(s) Install the subbase in an
area that is accessible for setting and adjusting the temperature and
settings.
Install the remote-mounted sensor(s) about 5 ft (1.5m) above the floor in an
area with good air circulation at average temperature. See Fig. 1.
Do not mount the sensor(s) 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.
If more than one remote sensor is required, they must be arranged in a
temperature averaging network consisting of two, three, four, five or nine
sensors. See Fig. 2 **through 6.
**
Subbase Installation
The subbase can be mounted horizontally on the wall or a 2 in. x 4 in. wiring box. Position the subbase horizontally on the wall or on a 2 in. x 4 in. wiring box.
-
Position and level the subbase (for appearance only). The thermostat will function properly even when not level.
-
Use a pencil to mark the mounting holes . See Fig. 7.
-
Remove the subbase from the wall and drill two 3/16 inch holes in the wall (if drywall) as marked. For firmer material such as plaster or wood, drill two 7/32 inch holes. Gently tap anchors (provided) into the drilled holes until flush with the wall.
-
Position the subbase over the holes, pulling wires through the wiring opening.
-
Loosely insert the mounting screws into the holes.
-
Tighten mounting screws.
WIRING
All wiring must comply with local electrical codes and ordinances. Refer to Fig. 9 through 15 for typical hookups. A letter code is located near each terminal for identification.
CAUTION
Disconnect power before wiring to prevent electrical shock or equipment damage.
- Loosen the terminal screws on the back of the thermostat and connect the system wires. See Fig. 8.
IMPORTANT
Use 18 gauge, color-coded thermostat cable for proper wiring.
-
Securely tighten each terminal screw.
-
Push excess wire back into the hole.
-
Plug the hole with nonflammable insulation to prevent drafts from affecting the thermostat.
Mounting Thermostat on Subbase
Mount the thermostat on the subbase after the subbase is installed.
-
Engage tabs at the top of thermostat and subbase. See Fig. 16.
-
Press lower edge of case to close and latch.
NOTE: To remove the thermostat from the wall, first pull out at the bottom of
the thermostat; remove top last.
IMPORTANT
Refer to the thermostat installation instructions for Installer Setup,
Settings, Installer Self-Test and Troubleshooting information.
Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis, MN 55408-0524
|Home and Building Control
Honeywell Limited-Honeywell Limitée
155 Gordon Baker Road
North York, Ontario
M2H 2C9
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