VDOT-ASD-400 Aspiration Detector
Velocity Detection
9
VDOT-ASD-400 Aspirating Smoke Detector User’s Manual V1
maximum transport times may be desirable in certain applications and should be specified as part
of the risk assessment. For example, Class A ASD systems are generally designed with transport
times of less than 60 seconds.
Maximum transport time can be directly affected by the installed sample pipe design, see the
following Figures. The 4-branch design will provide the shortest transport time.
Single branch system
