System Sensor Pipe Installation - Manual (Page 12)

User Guide: Aspirating Smoke Detector Pipe Installation
12
Open Area Protection
Ceiling Sampling
In typical ceiling installations, the pipe network is suspended
from 1" to 1 ft. (25 mm to 300 mm) below the ceiling level in the
protected area unless otherwise specified by local codes and
standards. This type of installation is the most common. It could
be used in offices, warehouses, equipment rooms and a variety
of other types of installations. PipeIQ can also help provide
guidance for the design.
Frequently Asked Question – How do I design for
a peak ceiling?
When designing peak ceiling applications, the spacing
requirements of NFPA-72® apply. A sample port shall be
provided within 36" from the center of the peak on both sides.
The next sample port from the center shall comply within the
design parameters of VEWFD, EWFD or SFD. If stratification
could potentially occur, it is recommended to also provide
sample ports along the wall.
Adjacent sample port shall
be located based on spacing
requirements. (VEWFD, EWFD, SFD)
Air sampling pipe located 3 ft.
from the center of the peak
on both sides.
Sampling pipe
network -Typ.
Sample port -Typ.
FAAST Detector
3 ft.
Sampling Ports
Figure 13: Peak ceiling sampling design.
Figure 12: Ceiling sampling.