Venstar ACC-TSEN Specification

ACC-TSENAir Temperature Sensor

The Air Temperature Sensor measures indoor or outdoor air temperature with a range of -20 to 120 degrees F.
If used indoors as a remote temperature sensor, the sensor will read room temperature and send the
information to the thermostat. If used as an outdoor temperature sensor, the sensor may be used to provide
outdoor temperature information (which is not used to control heating or cooling). The Air Temperature
Sensor should be mounted out of direct sunlight and in a place that is protected from direct rain and snow.
Mounting the sensor under an eave of a roof or under an overhang of a building is recommended.

Use 18 - 22 gauge 2 conductor unshielded thermostat wire. Wire length not to exceed 200 feet.

Thermostat Backplate

OUTDOOR

OUTDOOR

Black -

Connect to the thermostat backplate as shown

White +

Air Temperature Sensor

White +

Black -

DOWN

Connect to the Air Temperature Sensor as shown

P/N 88-871 Rev.1

ACC-TSENAir Temperature Sensor

Ohms

Resistance in

C

-28.9 106926

-23.3 80485

F

Air Temperature vs. Sensor Resistance

Air Temperature

-20

-10

-17.8 61246

-12.2 47092

0

10

-6.7 36519

-1.1 28558

20

30

10 17926

4.4 22537

40

50

11578

14356

15.6

21.1

60

70

7672

9398

32.2

26.7

80

90

6301

5203

37.8

43.3

110

100

4317

48.9

120