ROTRONIC CF3-W-US User Manual

Dokument
IMA 203

Rev 1 Page
1 (4)

Front

Wall

Insert screw driver
Push upwards to open

Front

Wall

Installation manual

CF3-W-US, CF3-W-US-Disp

CO2 transmitter

CF3-W-US CF3-W-US-Disp

General

The IAQ-sensor product CF3-W-US (sensor for wall mounting) is designed to
measure carbon dioxide (CO2) in rooms. Option - Disp displays the measured CO2
value in ppm (parts-per-million) on the LCD.

The units are designed for connecting to Direct Digital Control (DDC). The two
parallel signal outputs OUT1 (0-10 V) and OUT2 (2-10 V or 4-20 mA) give linear
signals corresponding to the measuring range.

The OUT2 output also indicates the status by setting the output voltage to 1 V or
current to 2 mA when the sensor self-diagnostics detects any error.

To open the wall mounted housing

Figure 1 Closed housing seen from the top and the side. The housing is opened by inserting a screw
driver and pushing to the front side of the housing. The locking hooks will then be released.

Dokument
IMA 203

Rev 1 Page
2 (4)

128,4(5,06)

85(3,34)

32,7(1,29)

30(1,18)30(1,18)

30(1,18)

30(1,18)

52,5(2,07)

30(1,18)

Figure 3 Closed housing seen from the side

Figure 2 Closed housing seen from the side

The housing is opened by inserting a screw
driver and pushing left (to the front side).
The locking hooks will then be released.

Never push to the right. The locking hooks
may break and the housing is damaged.

Dimensions

Figure 4 The dimensions of the sensor in mm and (inches)