Honeywell Home C7189U Installation Instructions Manual
69-1710EFS-04
C7189U Remote Indoor Sensor
CAUTION
M24055A
INSTALLATION INSTRUCTIONS
APPLICATION
This indoor sensor is designed to sense temperature
at a remote location and send this information to the
compatible Honeywell Home thermostat. This sensor
can be used as a stand alone sensor or as part of an
averaging network. The thermostat's installer setup
should be modified to tell the thermostat that remote
indoor temperature sensor(s) have been used. If
multiple wired indoor sensors are used, those sensors
are averaged and must be wired as shown in Fig. 6.
Fig. 1. C7189U Remote Indoor Sensor
Electrical Interference (Noise) Hazard.
Can cause erratic system operation.
Keep wiring at least one foot away from large
inductive loads such as motors, line starters,
lighting ballasts and large power distribution
panels.
Use shielded cable to reduce interference
when rerouting is not possible.
SPECIFICATIONS
Operating Ambient Temperature Range:
45 to 88 °F (7.2 to 32 °C).
Display Range:
0 to 99 °F (-18 to 37 °C).
Sensor Accuracy:
+/-1.5 °F at 70 °F (+/-0.84 °C at 21 °C)
Operating Relative Humidity:
5 to 95% non-condensing.
Finish:
White.
Resistance Characteristics:
Negative temperature coefficient (NTC). Resistance
decreases as the temperature increases.
Dimensions in inches (mm):
1 1/2 (38) wide x 2 1/4 (57) high x 3/4 (19) deep.
Distance:
Maximum distance between thermostat and sensor is
200 feet.
Must be installed by a trained, experienced technician
• Read these instructions carefully. Failure to follow
these instructions can damage the product or
cause a hazardous condition.
• Check the specification in this booklet to verify
that this product is suitable for the application.
• Always test for proper operation after installation.
C7189U REMOTE INDOOR SENSOR
CAUTION
M24056A
UP
M24057A
UP
INSTALLATION
Installation Tips
Install the sensor about 5 feet (1.5m) above the floor in an area with good air circulation at average temperature.
Maximum distance between remote sensor and the thermostat is 200 feet. See Fig. 2.
Electrical Hazard
Can cause electrical shock or equipment damage. Disconnect power before beginning installation.
YES
NO
5 FEET
(1.5 METERS)
NO
NO
Fig. 2. Typical location for C7189U Sensor.
Remote Sensor Wallplate Installation
Remove the cover from the remote sensor as shown in Fig.3.
1. Pull wires through wire hole.
2. Position wallplate on wall, level and mark screw hole positions with pencil.
3. Drill holes at marked positions, then tap in supplied wall anchors.
4. Place wallplate over anchors, insert and tighten mounting screws. See Fig. 4.
M24115A
Fig. 3. Remove the cover. Fig. 4. Mount wallplate to wall.
69-1710EFS—04 2
C7189U REMOTE INDOOR SENSOR
CAUTION
2
C7189
RC
R
W
Y
G
C
Y2
W2
S2
S1
M19972B
R
C
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
IF MORE THAN ONE C7189 REMOTE SENSOR IS REQUIRED,
REFER TO FIGURE 6.
WIRES MUST HAVE A CABLE SEPARATE FROM THE
THERMOSTAT CABLE.
1
1
3
2
3
S2
1
2
1
WIRING
The sensor can be used to provide one remote sensor (see Fig. 5) or as a temperature averaging network with
multiple sensors connected (see Fig. 6).
ELECTRICAL HAZARD.
Can cause electrical shock or equipment damage. Disconnect power before wiring.
1. Run the wire cable from the thermostat to the
remote sensor location.
2. If the thermostat or EIM uses screw terminals,
loosen screw terminals, insert wires into
terminal block (polarity does not matter), then
retighten screws. If thermostat has push
terminals, push the ends of the sensor wires into
the sensor terminals on the thermostat subbase.
3. Push excess wire back into the wall opening.
4. Plug the wall opening with non-flammable
insulation to prevent drafts from affecting the
sensor operation and replace the cover on the
remote sensor.
5. Connect the two wires to the thermostat's
remote sensor terminals (polarity does not
matter) and replace the thermostat back onto
the wallplate. See Fig. 5.
2
2
1
C7189
C7189
C7189 C7189
1
C7189
C7189
C7189
C7189 C7189 C7189
Fig. 5. Wiring a single C7189U Sensor.
C7189 C7189
SENSORS MUST BE ARRANGED IN THIS
1
CONFIGURATION TO OPERATE CORRECTLY.
WIRES MUST HAVE A CABLE SEPARATE FROM THE
2
THERMOSTAT CABLE.
C7189
M19973
Fig. 6. Wiring Multiple C7189U Sensors.
3 69-1710EFS—04
C7189U REMOTE INDOOR SENSOR
Heat On
SCHED HOLD CLOCK SCREEN MORE
MONMON
TUE WEDWED THUTHU FRIFRI SSAATT SUN
AM
FAN
AUTO
SYSTEM
HEAT
CHANGE FILTER UV LAMP HUMIDIFIER PAD
Following
Schedule
Inside
Set To
OK TO PICK MULTIPLE DAYS SCREEN LOCKED
M19974A
OPERATION
Once a remote indoor temperature sensor is
connected to the thermostat, the thermostat's sensor
is no longer used. The thermostat's installer setup
should be modified to tell the thermostat that remote
indoor temperature sensor(s) have been used. The
Inside temperature reading on the thermostat's
display will be the remote sensor(s) temperature
location(s). See Fig. 7.
.
Fig. 7. Inside Temperature Reading on TH8000
Series Thermostat.
CHECKOUT
For best results, allow the sensor to absorb the air
moving through the room for a minimum of twenty
minutes before taking a resistance measurement.
1. Use an accurate thermometer (+/-1°F[0.5°C])
measure the temperature at the sensor location.
2. Remove one wire from one of the sensor's wiring
terminals. Use an ohmmeter to measure the
resistance across the sensor. Verify the sensor
accuracy with the temperature/resistance in
Tab le 1.
CALIBRATION
The sensor is calibrated at the factory and cannot be
recalibrated in the field.
Table 1. Sensor Resistance at Room Temperature.
Room Temperature
Ohms of
Resistance°F °C
40 4.4 22537
42 5.6 21516
44 6.7 20546
46 7.8 19626
48 8.9 18754
50 10.0 17926
52 11.1 17136
54 12.2 16387
56 13.3 15675
58 14.4 14999
60 15.6 14356
62 16.7 13743
64 17.8 13161
66 18.9 12607
68 20.0 12081
70 21.1 11578
72 22.2 11100
74 23.3 10644
76 24.4 10210
78 25.6 9795
80 26.7 9398
82 27.8 9020
84 28.9 8659
86 30.0 8315
88 31.1 7986
90 32.2 7672
92 33.3 7372
94 34.4 7086
96 35.6 6813
98 36.7 6551
100 37.8 6301
www.resideo.com
This product is manufactured by Resideo Technologies, Inc., Golden Valley, MN, 1-800-633-3991
©2019 Resideo Technologies, Inc. The Honeywell Home trademark is used under license from Honeywell International Inc. All rights reserved.
Resideo Inc., 1985 Douglas Drive North,
Golden Valley, MN 55422
69-1710EFS—04 M.S. Rev. 03-19 | Printed in United States
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