Return Line - Siemens FDA241 Mounting & Installation

Aspirating smoke detector

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Table of Contents

3.3.1

Building Technologies

Fire Safety

Connecting the pipe system to the aspirating smoke detector

Return line

If there is an air pressure difference of >45 Pa between the monitored area and the

aspirating fire detector, a return line is required.

NOTICE

Connection between aspirating smoke detector and return line

Damage to the return line and/or the aspirating smoke detector

●

Do not glue the return line to the aspirating smoke detector! If the return line

has to be separated from the aspirating smoke detector for maintenance work

or repairs, the return line or the aspirating smoke detector may be damaged.

Press the return line securely into the air outlet on the aspirating smoke

detector.

You will find more information in document A6V10334435.

Fda221