Installing the pipe system
Installation & Commissioning Handbook, ,
P-ASENSE75/IE 980302, 7483 Trondheim
Page 12
12. To help identification and location, each individual hole should
be marked with a white, circular label with a hole at the centre
(these can be supplied). The pipe and position of each
detection hole should be marked with a warning label as in the
example below.
13. The pipe and position of holes should be well-marked. Below is
shown a warning label for suitably marking the pipe system.
3.2 Guidelines for agricultural installations
For guidelines for agricultural installations, reference is made to the
insurance companies’ regulations for fire alarm systems.
AutroSense 75 includes among the following:
•
maximum single pipe length is 46 m
•
maximum number of pipe lengths is 2 x 46 m
•
minimum number of holes per room is 2
•
minimum distance from hole to wall is 0.5 m
•
maximum distance between holes is 5 m
•
pipe loops up to 30 m long should have sealed ends
– sampling holes should not be less than 3 mm in diameter
•
pipe loops longer than 30 m should have open ends
•
maximum distance from the pipes to roof is 10 m
•
under a saddle roof, the the pipes should be installed a minimum
0.5 m and maximum 1 m from the ridge
