LaserSCANNER Product Manual
VESDA
®
24
1.6
Connecting 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
inch). 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 5 on page 24 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 5 - 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
D
2
D
D
3
D
D
D
4
D
D
D
D