Honeywell T7047C

INSTALLATION INSTRUCTIONS
62-3050—3
T7047C,G
Electronic Thermostats
and Remote Space Sensors
APPLICATION
The T7047C,G Electronic Thermostats and Remote
Space Sensors are used in Series 70 Control Systems
to provide modulating space temperature control.
SPECIFICATIONS
Models:
T7047C: 2-wire remote sensor for use with control
systems such as the T7100, T7300, W927, W960,
and W973.
T7047G: 2-wire remote sensor without internal
adjustment means, requires remote setpoint device
such as T7100, T7300, S963B, 7067B or T7080B.
Dimensions: See Fig. 1.
Temperature Sensor: Thermistor-resistor element.
Sensor Resistance:
For the following negative temperature coefficient (NTC)
devices, resistance decreases as temperature
increases (Fig. 8 and 9):
T7047C: 1420 ohms nominal at 75°F (24°C);
resistance changes 15 ohms for each 1°F (0.6°C)
temperature change.
T7047G: 710 ohms nominal at 75°F (24°C);
resistance changes 7.5 ohms for each 1°F (0.6°C)
temperature change.
Mounting: Mounts on wall or 2 x 4 in. vertical outlet box
with screws provided.
Accessories:
209649A Universal Cover Plate (taupe);
5-3/4 x 7-3/8 in. (146 x 187 mm).
209650A Universal Cover Plate (premier white);
5-3/4 x 7-3/8 in. (146 x 187 mm).
Fig. 1. T7047 dimensions in in. (mm).
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
them could 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 installation is complete, check out product
operation as provided in these instructions.
CAUTION
Electrical Shock or Equipment
Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
3-1/4
(83)
3-13/16
(97)
4-5/8
(117)
1-13/16 (46)
3-5/8 (92)
7/8 (22)
1-1/16 (27)
2-7/8 (73)
3/8
(10)
M17720

Honeywell T7047C Specifications

General

Temperature Range	40°F to 90°F (4°C to 32°C)
Power Source	24V AC
Display Type	LCD
Thermostat Type	Programmable
Backlight	Yes
Programmable	Yes
Battery	No
Stages	1 Heat/1 Cool
Mounting	Wall Mount

Summary

Application

Product Overview

Describes the use of T7047C,G sensors in Series 70 Control Systems for modulating space temp control.

Specifications

Model Variants and Features

Details T7047C and T7047G models, sensor type, resistance, and mounting options.

Accessories

Lists available universal cover plates for the T7047C,G thermostats.

Installation Instructions

Installation Safety Precautions

Emphasizes reading instructions, checking ratings, installer qualifications, and safety warnings.

Location Guidelines

Specifies optimal placement for thermostats/sensors for accurate room temperature readings.

Mounting Procedure

Step-by-step guide for physically attaching the T7047 thermostat to walls or outlet boxes.

Wiring Best Practices

Covers code compliance, interference avoidance, shielded cable use, and grounding for reliable wiring.

Wiring Diagrams

Provides schematics illustrating typical wiring connections for various system configurations.

Operation and Checkout

Thermostat Operation Principle

Explains how the NTC thermistor's resistance change impacts system control.

Sensor Calibration and Checkout

Details how to verify sensor resistance and check system operation post-installation.