Xtralis VESDA E-Series, Manual

Page: 44 / 367

VESDA Products
2-24 VESDA Student Workbook
Control
Circuitry
• Continuously monitors all sample
points for smoke and flow
• Upon detecting smoke raises alarms
(pre-alarms and fire-alarm)
• Scans each tube independently
• Raises tube alarm reporting effected
sampling point(s)
• System restores to normal
condition
1 2 3
6
7
12
14
16
18
20
22
24
26
28
30
32
4
8
9
10
11
13
15
17 19
21
23
25
27
29
31
40
Rotary
Valve
Smoke Sensor
Remote
Sampling Point
Manifold
Central Test Port
Pump
Internal (smoke event)
47
Operation (auto cleaning)
Automatic tube purging with programmable period