Edwards LaserSense Nano User Manual

Chapter 2: Installation and configuration
10 LaserSense Nano Aspirating Smoke Detector Installers Handbook
Sample pipe networks
Simple designs with short sampling pipes produce the best results. Maximum
allowed sampling pipe length is 164 feet (50 meters) in still air. In areas or
applications where the external airflow rate is greater than 3 feet per second
(1 meter per second), the maximum sampling pipe length is reduced to 33 feet
(10 meters).
Air handling unit installation
No more than one air handling unit may be protected with one Nano detector.
In this application, ensure that the sampling pipe is raised clear of high velocity
air in the immediate vicinity of the air intake grill on standoff posts as shown in
Figure 3 below.
Figure 3: Air handling unit in vicinity of the Nano detector (exhaust pipes not shown for
clarity)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(3)
(1) Incorrect
(2) Detector
(3) Sampling pipe
(4) Standoff posts
(5) Correct
(6) Detector
(7) AHU
(8) Equipment cabinet
(9) Direction of smoke

Edwards LaserSense Nano Specifications

General

Brand	Edwards
Model	LaserSense Nano
Category	Smoke Alarm
Language	English