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).
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
2. Check the ratings given in the instructions and on
3. Installer must be a trained, experienced service
4. After installation is complete, check out product
3-13/16
(97)
7/8 (22)
1-1/16 (27)
Fig. 1. T7047 dimensions in in. (mm).
them could damage the product or cause a
hazardous condition.
the product to make sure the product is suitable for
your application.
technician.
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.
INSTALLATION INSTRUCTIONS
1-13/16 (46)
3-1/4
(83)
4-5/8
(117)
(10)
3/8
2-7/8 (73)
3-5/8 (92)
M17720
62-3050—3
T7047C,G ELECTRONIC THERMOSTATS AND REMOTE SPACE SENSORS
Location
Locate the thermostat or remote sensor about 5 ft (1.5m)
above the floor on an inside wall where it is affected by
freely circulating air at average room temperatures.
Mounting
1. Loosen the cover locking screw and remove the
thermostat cover.
2. Run wire to the selected location; thread wire
through the semicircular hole in the thermostat; and
make connections to the T7047 (see the
Wiring section).
3. Four mounting screws are provided, two selftapping type for wall mounting and two for outlet
box mounting. Select the proper screws for the
application.
4. If air drafts occur through the wall opening,
eliminate with suitable material.
5. Fasten the T7047 on the wall or outlet box with
screws through the thermostat mounting holes. See
Fig. 2.
NOTE: Connect sensor wires to T-T terminals on
the thermostat cover assembly.
6. Replace the cover and tighten the cover locking
screw.
WALLPLATE
MOUNTING
SCREW (2)
MOUNTING
TAB
(2 INSIDE
COVER)
OUTLET BOX
MOUNTING
TAB SLOT (2)
COVER
THERMOSTAT
LOCKING
SCREW
Fig. 2. Mounting the T7047.
M17719
IMPORTANT
• All wiring must agree with applicable codes, ordinances and regulations.
• To avoid electrical interference, which can cause
erratic performance, keep wiring runs as short as
possible and do not run thermostat wires adjacent to the line voltage electrical
distribution systems.
• Use shielded cable (Belden type 8762 or
equivalent for 2-wire and Belden type 8772 or
equivalent for 3-wire).
• The cable shield must be grounded only at the
controlled equipment case.
Q7300
TT
T7047G1000
T
T
Fig. 3. Two T7047G Sensors providing a
temperature-averaging network for a T7100/Q7100
or T7300/Q7300 Thermostat/Subbase.
T7047C
T
T7047C
T
T7047G1000
T
T
Q7300
TT
T
T7047G1000
T
T
M3421
T
M3418
Wiring
CAUTION
Electrical Shock or Equipment Damage
Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
Fig. 3 through 7 show schematics and typical
connections. Also refer to instructions supplied with other
system components.
62-3050—3 2
Fig. 4. Two T7047C Sensors and one T7047G Sensor
providing a temperature-averaging network for a
T7100/Q7100 or T7300/Q7300 Thermostat/Subbase.
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