VESDA Commissioning Guide VESDA by Xtralis
12 www.xtralis.com
Relay Setup
For LCD Programmer: See LCD screens 32-35
1. Select screen 33 and set the relays to Energized or De-energized. Relay 3 is energized and cannot be
changed.
2. Select screen 34 and set the relay conditions. The isolate function is set to Unlatch and cannot be altered.
3. Select screen 35 and set the relay assignments. Relays 3 and 6 are permanently fixed as Urgent Fault
and Fire 1 respectively. All relays can be assigned multiple functions.
For Xtralis VSC: Devices Menu/Tree - Detector Form
1. Use the Relays Tab to set the relay conditions to energize or de-energize when an event occurs. Relay 3
is energized and cannot be changed.
2. Use the Relay Assignment Tab to assign relay functions and to latch or unlatch relays for:
l Isolate
l Urgent fault
l Minor Fault
l Alert
l Action
l Fire 1
l Fire 2
The Isolate condition is permanently unlatched and cannot be changed. Urgent Fault and Fire 1 are
permanently assigned to relays 3 and 6 and these cannot be changed, however additional assignments may
be set for all relays.
4.2.2 VESDA VLS Configuration
Before performing these steps you should complete the Generic Configuration steps on page 9.
Setting Air Flows
For LCD Programmer: See LCD screen 23 & 62
1. Select Air Flow and then select flow threshold, flow control, OR normalizing air flow
2. See LCD screen 24 & 63. Flow Threshold - Set airflow values to suit the customer site or accept the
defaults.
3. Set the delay time for the air flow threshold
4. See LCD screen 25 & 64. Flow Control - Select the pipe in use and aspirator speed
5. See LCD screen 26 & 65. Normalize the airflow
For Xtralis VSC: Select devices menu/tree -detector form
1. Select air flow tab to set airflow values to suit the customer site or accept the defaults.
2. Set the delay time for the air flow threshold
3. Flow Control - Select the pipe in use and set the aspirator speed
4. Normalize the airflow by selecting the detector, drop down device. Next, select either Normalize or Drop
down device, then select Normalize Airflow
Setting Smoke Thresholds
For LCD Programmer: See LCD screens 48-56
1. Select screen 48: Select the smoke threshold and set: Day Thresholds, Night Thresholds, Change-Over
Times, Weekend, Holidays, and Scanner
2. Select screen 49 and set the Day Thresholds for Fire 2, Fire 1, Action and Alert
3. Select screen 50 and set new Night Thresholds for Fire 2, Fire 1, Action and Alert
4. Select screen 51 and set the Day Period and Night Period
5. Select screen 52 and check the days considered as Weekend
6. Select screen 53 and enter the start/end dates for holiday periods
7. Select screen 55 and enter the Thresholds, Day Thresholds and Night Thresholds that are the level, as
defined by the adaptive scan threshold, that the unit will start to scan.
8. Select screen 56 and set the Sector factor.
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