Bosch FAS-420-TM - Page 61

FAS-420-TM Aspirating Smoke Detector Installing the Aspirating Smoke Detector | en 61
Bosch Sicherheitssysteme GmbH Operation Guide F.01U.088.878 | 4.1 | 2010.11
3. To connect the aspiration pipe to the FAS-420-TM, insert it into the pipe connection
provided (see Figure 4.5).
4. Insert the detector module into the pre-mounted housing base. When doing this, be
aware of the mechanical coding, which protects the device against twisting. Tighten the
four screws of the detector module using a screwdriver (see Figure 4.6).
Figure 4.5 Connecting the aspiration pipe to the FAS-420-TM Aspirating
Smoke Detector
1 Smoke aspiration pipe
1
NOTICE!
– Do not use glue to connect the aspiration pipe and pipe connection.
– In the event of sharp temperature fluctuations, the pipe must be fixed immediately in
front of the unit so that the pipe does not pull out of the pipe connection when the length
changes (see Section 5.1 Length Change of the Pipe System, page 68).
CAUTION!
The components on the PC boards must be protected against damage from electrostatic
charging.