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506808-01 06/11
Placement of Remote Outdoor Temperature
Sensor
S
Outdoor temperature sensor should not be mounted
on the south side of the house or in direct sunlight.
S
Outdoor temperature sensor may not be located clos
er than 4 feet to exhaust vents, dryer vents, etc.
S
If outdoor temperature sensor is mounted in fresh air
intake duct, make sure the probe is no further than 1
foot from outside wall.
S
Make sure wiring for outdoor temperature sensor is
not close to other wires particularly high voltage.
S
Outdoor temperature sensor must be at least 6” above
expected snow line.
S
Maximum conductor length of the Outdoor Tempera
ture Sensor is 100 feet (30m) of standard thermostat
cable (twisted pair not required).
S
Connect Outdoor Temperature Sensor to terminals #8
and #9.
Table 2. Outdoor Sensor Temperature / Resistance Range
Temperature
ºF (ºC)
Resistance Value (KOHM)
Temperature
ºF (ºC)
Resistance Value (KOHM)
Maximum
Standard
Minimum
Maximum
Standard
Minimum
-40.0 (-40)
196
188
181.1
41.0 (5)
22.5
22.1
21.7
-29.2 (-34)
142
137
131.8
50.0 (10)
18.2
18
17.7
-20.2 (-29)
109
106
102.2
60.8 (16)
14.3
14.1
13.9
-9.4 (-23)
80.7
78.3
75.93
69.8 (21)
11.8
11.6
11.6
-0.4 (-18)
63.3
61.5
59.81
80.6 (27)
9.38
9.28
9.18
10.4 (-12)
47.7
46.5
45.31
100.4 (38)
6.33
6.24
6.15
19.4 (-7)
37.9
37.1
36.2
122.0 (50)
4.24
4.16
4.08
30.2 (-1)
30
28.5
27.89
136.4 (58)
3.28
3.2
3.1