ROTRONIC CF5-D User Manual

Dokument
IMA 207

Rev 2 Page
1 (4)

1

2

1

2

3

4

5

6

7

9

8

10

Installation manual

CF5-D, CF5-D-Disp

CO2 / temperature transmitter for mounting in

ventilation ducts

Figure 1

1 Sampling probe 6 O-ring 29,2x3,53 (Factory supplied mounted in box)
2 Sealing gasket 7 PCB (Factory supplied mounted in box)
3 Largest locking nob 8 Snap-in lid

4 2 washers 9 PG9 cable entry bushing
5 2 screws 10 Temperature sensor (to be put into the sampling tube)

Dokument
IMA 207

Rev 2 Page
2 (4)

11

10

Mounting of CF5-D on to the duct.

Figure 2

10 Hole with 25 mm diameter

11 Temperature sensor with 110 mm cable mounted in the sampling probe

Mounting Instruction

Since there might be a substantial pressure difference in duct mounting applications,
it is essential to avoid ambient air from suction into the duct mounting box. For
correct function it is indispensable that the sealing of the box cover, the cable entry
bushings, the cable feed through and the duct entrance are absolutely tight. The duct
entrance may need extra sealing paste in order to prevent leakage. The PCB must
be handed carefully and protected from electrostatic discharge.

1) Electrical cable ent ry: The box has a factory mounted cable entry bushing in
dimension PG9. Never feed more than one cable through each cable entry
bushing, or else gas might leak through!

2) Mounting the tube: Drill a hole (10) with 25 mm diameter (or 1 inch) for the
sampling probe and two holes with 4 mm diameter for the screws (5) into the air
duct and mount the tube (1) with the gasket (2). The sampling probe should be
mounted with the largest locking knob on top. The unit can be mounted with the
air coming from the left or right.

3) Attaching the sensor box is made to the sampling probe by a snap-i n bayonet

fitting. First, carefully stick the temperature probe (11) into the sampling probe.
(1). Orient the box onto the sampling probe so that the box upside is on the same
side as the largest locking knob (3). When the probe is fitted into the notches of
the box, then turn the box clockwise until stop (see Figure 1). Position 1 indicates
open where the box can be removed from the sampling probe. In position 2 the
box is locked to the probe.

If for some reason the PCB must be removed it must be handed carefully
and protected from electrostatic discharge! Normally, removing the PCB is
not required.