VESDA
®
LaserPLUS Product Guide
19
1.6 Connecting the LaserPLUS to the Pipe Network
Inlet Pipes
The inlets in the pipe inlet manifold are designed to receive a standard pipe of 25 mm (1 in) OD.
A 25 mm to 1.050 inches adaptor to fit the pipe inlet manifold is included for all shipments to
USA.
Figure 14 - Pipe Adaptor
The design of the air inlet ports allow insertion of the sampling pipe to a depth of 15 mm. (0.60
in). This prevents the sampling pipes from damaging the flow sensors. While connecting the
detector to the pipe network:
• Ensure a minimum length of 500 mm (19.7 in) of straight pipe before terminating the pipes
at the air inlet ports of the detector.
• Square off and de-burr the end of the sampling air pipes, ensuring the pipes are free from
swarf.
• Determine the Air Inlet Ports to be used. See Table 6 on page 19 for details.
• Remove the plugs from only those Air Inlet Ports intended for use.
• Insert the pipes into the pipe inlet(s) ensuring a firm fit.
Note: DO NOT glue the inlet pipes to the pipe inlet manifold.
When configuring the detector ensure that the correct pipes in use are selected.:
Table 6 - Preferable use of pipe inlet ports
Figure 15 - Pipe inlet port numbering
No. of Pipes
Preferred Pipe Inlet Port to Use
Pipe 1 Pipe 2 Pipe 3 Pipe 4
1
2
3
4
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