Bedienungsanleitung Steuerung S4_2006_09_25-neu.doc
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Month of issue xx/200x
Art. no. 950 281
Disconnect cable of air flow sensor from air flow sensor. Release both screws of the carrier
plate at the suction pipe and carefully remove the air flow sensor together with the carrier
plate by pulling upward, taking care not to damage the tip. Carefully remove any dust or dirt
deposit by blowing or using a paint brush.
Note:
Do not release the small screws that fasten the air flow sensor (circuit board) to the carrier
plate.
Reassembly is done in the reverse order of assembly.
Important notes:
•
Remount the air flow sensor as shown in the picture.
•
The carrier plate must be located on the right as when looking in flow direction, since
otherwise measuring errors will occur.
•
A foul or blackened air flow sensor is an indication of some disorder in the building
installations (for ex. negative pressure) or insufficient cleaning or servicing, but nonetheless
requires replacement. Correct the disorder in the building installations prior to replacement.
To dismount air flow sensor
release carrier plate fastening
screws here at the suction pipe.
Only dismount air flow sensor
from suction pipe while
fastened to the carrier plate.
Carrier plate
Air flow sensor
(galvanised)
Air flow sensor
(green board)
4-pole plug for air flow
sensor
(white)
