C7189U REMOTE INDOOR SENSOR
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.
www.resideo.com
Resideo Inc., 1985 Douglas Drive North,
Golden Valley, MN 55422
69-1710EFS—04 M.S. Rev. 03-19 | Printed in United States
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
Table 1.
CALIBRATION
The sensor is calibrated at the factory and cannot be
recalibrated in the field.
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
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
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