INSTALLATION INSTRUCTIONS
C7189U Remote Indoor Sensor
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.
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