xtralis training 3
TRANSCRIPT
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Xtralis AG. All rights reserved.
xtralis.com
Powerful Early Warning Safetyand Security Solutions
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Topic 5 Installation
Topic 6 Programming
Topic 7 Commissioning
Topic 8 Maintenance & Troubleshoot
VESDA Accreditation Training Day 2
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Pipes and Connections
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Whats Wrong? (1)
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Labeling
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External Cabling
24VDC to modules (InstDet-3) RS485 Communications loop 120 Ohm Twisted Pair Preferred Belden 9841
Alternative Belden 9729 or 8103 All connections are made on to the Detector Termination
Card (InstDet-20)
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Detector Termination Card
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GPI wiring to monitor PS
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Interfacing - Relays
Seven Relays in VLP detector 7 or 12 in VLS detector 2A 30VDC rating with redundant contacts Additional 7 or 12 relays can be added with
each remote Relays are configurable:-
default is 4 alarm relays, 2 faultrelays and 1 isolate
on all detectors relays Fire 1 andUrgent Fault are fixed
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Relay Assignments
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Topic 6
Commissioning, Maintenanceand troubleshooting
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Commissioning Overview
Pre-commissioning Requirements
Detector / VESDAnet Setup
VSC Software
Testing
Final Checks
Forms & Handover
Typical Maintenance
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Pre-Commissioning (off-site)
Download necessary manuals from www.vision-fs.com
Product & Installation Manual per detector
System Design Manual (Commissioning Chapter)
Commission Forms
Download and register VSC software
As-built drawings
Airflow calculations
http://www.vision-fs.com/http://www.vision-fs.com/http://www.vision-fs.com/http://www.vision-fs.com/ -
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Visually inspect the sampling pipe network and confirm correct installation.
Record the serial # from each VESDA device (detectors, displays, andremote relay modules)
Pre-Commissioning (on-site)
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Finding the serial #s onthe devices
Pre-Commissioning (on-site)
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VESDA power Supplies
Acceptable 24VDC power supplies:(24 VDC 2A.)
ANY UL-1481 approved PS
VPS-100us 24vdc PS 2 batteriesVPS-300us 24vdc PS 6 batteriesVPS-400us 48 volt multi-zone PS zero batteries
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Pre-Commissioning (on-site)
Verify that the exhaust cap has been removed fromeach detector
Verify power cabling and VESDAnet wiring is secureand apply power to VESDA system
Preliminary system check
All devices communicating
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VSC Software
Install & run VSC
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Logon
User:
PIN:
DST ADM USR
1451 1413 1111
Focus DST 7244 ADM 1413
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Programming the VESDA System
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Set Time & Date
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Set Time & Date
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Set Units
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Set Units
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Programming the VESDA System
Assign each VESDA detector to an appropriatezone and location
Assign displays and remote relays to appropriate
detector zones and locationsIn programming, you can lock out all buttons on thedisplay isolate, reset, mode and silence buttonsWhen an error occurs within VSC, highlight error &
press F1 to get help.
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Programming the VESDA System
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Programming the VESDA System
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Programming the VESDA System
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Programming the VESDA System
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Programming the VESDA System
Accept Factory Defaults Clears faults 12, 30, 31, 33, 34, 35, 38, 57, 68 and 72
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Programming the VESDA System
Program which Air Sampling Pipes are used (pipes 1-4, left to right)Set Aspirator Speed
1234
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Normalize the Detector
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Normalize the Detector
During 11 minutes of normalization (VLP, VLS, VLC), the aspirator isautomatically turned off for 5 minutes. VLF normalizes instantly.
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Normalize the Detector
Once normalized, this sets a reference point for air flows faults. Normally around100 % for each pipe.
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Setting up Smoke ThresholdsManual Setting:
Typically alarm thresholds are specified and can be set
manually Alert typically set approx. 3 - 10 times background smoke
level
Autolearn:Monitors background smoke levels of a zone for a preset
timeSets alarm thresholds automatically using data collected.No less than 25 Hours (15minutes min ,15days max)
Programming the VESDA System
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Setting Smoke Thresholds
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Testing Equipment
Stop Watch
Canned Smoke
Drill Bit Set VSC software
VHX-0200 High Level Interface
Digital Manometer (optional)Two way radios (optional)
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Testing Codes (NFPA 72 2002)
Maximum air sample transport time from the farthestsampling point shall not exceed 120 seconds.
TEST METHOD Per manufacturers recommended test methods, Detector alarm response shall be verified through the
end sampling port on each pipe run. Airflow through all other ports shall be verified as well.
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Testing Method
Recommended Test Methods UL Listed Canned Smoke
Spray smoke into the farthest sample hole (End Vent)from the detector.Using a stop watch, time the time taken for the detectorto respond to the increase of smoke.
Digital Manometer A digital manometer may be used to measure the
pressure readings to verify airflow through sample holesand during follow up testing.
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Testing Method
Recommended:
Dwyer Instruments:
Digital Handheld Manometer
(Model 477-1-FM)
Available through Grainger
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Commissioning Forms
Contents: Installation Registration Attachments (Aspire2 / VSC) Display Module Configuration Device Information Zone Setup Relay Configuration Pressure Testing Results
Smoke Test Results
Note: By highlighting a detector on the device tree (VSC) andselecting Print setup all the required device information for thisdetector will be printed.
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Final Checks
No Faults on VESDAnet
Dectector diagnostics checked
Display diagnostics checked
Test Relays checked
Test backup power source
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Handover
Copies of Commissioning Document should beforwarded to :
Xtralis Distributor Contractor responsible for installation of system Designer of system System end user
AHJ
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Topic 7
Programming
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Programming Tools Overview
LCD ProgrammerVESDA System Configurator (VSC)VESDA System Management (VSM)
Both VSC and VSM are PC based softwarethat requires High Level Interface (HLI) toconnect computer to VESDAnet.
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Programming Tools
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Programming Tools
Product Programming Tool
VLP LCD programmer (Hand-held or module) VSC (with VHX-0200) VSM4 (with VHX-0200)VconfigPro
VLS LCD programmer (Hand-held or module)VSC (with VHX-0200) VSM4 (with VHX-0200)
VLC-505 VN LCD programmer (Hand-held or module) VSC (with VHX-0200) VSM4 (with VHX-0200)
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Programming Tools
Product Programming Tool
VLC-500RO
VSC (with RS232 DB-9 Serial Cable)
VLFStand-Alone
VSC (with RS232 DB-9 Serial Cable)
VLFWith VNcard
LCD programmer (Hand-held or module) VSC (with VHX-0200) VSM4 (with VHX-0200)
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Topic 8Maintenance & Troubleshooting
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VESDA Maintenance
Regular system testing- Batteries- Pipe network- Smoke & system testing
- Filter- Airflow
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LaserPLUS Maintenance
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Isolating Systems
Isolation of risk zones should only be carried out with thefull knowledge and approval of the appropriatesupervising authority.
Ensure any ancillary services which are enabled by theisolation of zone or zones are themselves isolatedbefore work commences.
Isolate FACP first and then LaserPLUS.
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Airflow - Raw Airflow Data
Raw Airflow Data is just that Data. It does nothave a volumetric unit of any kind.It is recommended to record the Raw Air flow atInstallation.Should then be checked every 12Months.
A decrease in Raw Airflow will be indicative ofsampling holes becoming progressively blocked.Raw Airflow will show this , whereas thePercentage Airflow may not if the flow hasrecently been normalized.
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Pipework Back Flushing
Ensure all pipes are disconnected from the inlet manifold.Clean sample points in each pipe run (where possible)Secure Porous paper or cloth bag to inlet manifold at the end ofeach pipe to contain dislodged dust particles.
Remove end cap from each pipe.Connect pressurized air source to Detector end of pipe.Seal any gaps where compressed air source is connected topipework. Remove compressed air connection and end cap.
Remove the dust collection bag
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Maintenance Schedule
Act ion Frequency Details
Pipe Network(Visual)
6 Monthly Visually inspect piping to ensure allpipe runs are intact, pipe supports &
joints are firm.Check for any blockages orinterference of Sample Ports andcorrect as needed.
Smoke &System Test
Yearly Verify Pipe Integrity, Transport &Response times.
Also ensure appropriate Fire PanelSignaling.
Maintenance Schedule
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Act ion Frequency Details
Power Supplies Yearly Test in accordance of suppliers instructions.Check integrity of batteries.
FilterReplacement
2 Yearly Recommended change out period.Check filter status yearly.
Check Current Airflow
Yearly Compare current reading with initial readingfor any variations.
Clean Samplingholes
As necessary Depending on environment, can clean thesampling pipe network by back flushing.
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End of Topic 8
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VESDA summary continued
The maximum distance between RS485 connected nodes is 4000 ft
The ASPIRE 2 program is used to validate air sampling network designs
The VLP incorporates 4 airflow sensors
The log on the VLF stores info on faults, access & exit commands, and smoke changes &alarms
There is no scheduled calibration for the VLP
The preferred cable for VESDAnet is 120 ohm, shielded twisted pair
Stratification occurs when smoke rises until it reaches a layer of air with the same temp &stops rising
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VESDA Accreditation Class Summary
Under NFPA 72, the maximum spacing for sampling holes is 30 ft centers
The end of the sampling pipes is typically fitted with an end vent .
When an error occurs within VSC , highlight error & press F1 to get HELP
The principal of detection in VESDA is light scattering
The VESDA Laser Plus (VLP) has 7 relays available. VLS 7 or 12. VLC, VLF have 3
The VLF250 has an operative flow range between 12.6 to 24.5 lpm
When the filter is removed from the VLP, the aspirator shuts off, the buzzer sounds (if
enabled), and an urgent fault is raised.
The VLP filter is a 2-stage filter
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VESDA Accreditation Summary
The relay contacts on the Head Termination card are rated 2A @ 30VDC
The maximum number of devices that can be supported on the VESDAnet are 200
The HLI provides an interface between VESDAnet and intelligent systems
The sample hole location is marked with a printed decal around the sample hole
The default sampling hole size is 5/64
Check pipe network every 6 months clean SP as needed
Check power supplies yearly load test Check batteries, wiring, relay
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VESDA Accreditation Summary
Under UL and FM approvals, one zone of a VLP can cover a maximum of 20,000 sf, VLS=
20,000sf, VLC= 8,000 fs, VLF250= 2500sf, VLF500= 5,000 sfThe basic pipework layout is based on standard internal diameter pipe. The ID is 0.87, nominal
To maintain clean optics , the VLP head utilizes a clean air barrier
To reset filter on Focus, depress switch (behind filter) 5 times within 5 seconds. Otherdetectors need to be reset via software or programmers.
A VESDA system can be installed for capillary, duct, room, in-ceiling or under-floordetection
When using ASPIRE, all parameter changes must be followed by the compute (calculate)command
Replace FILTERS every 24 months, or as needed for challenging environments
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VESDA Accreditation Summary
The available Power Supply options for the 24VDC are any 1481 UL listed PS, a VPS-100US single zone PS, a VPS-400US-48 multi zone PS, VPS-300US -120
In programming, you can lock out all buttons on display - isolate, reset, mode and silence buttons
The VLP, VLS, VLF has 4 programmable alarm thresholds. The VLC has 3
VESDA detectors are UL268 listed for primary detection
VESDAnet links all VESDA networkable modules (nodes)
The VLP log can store up to 18,000 events
Filter cartridge monitoring is performed by counting the number of particles passingthrough the detector
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VESDA Accreditation Summary
One can program VLP modules via Programmer module, hand-held programmer, VSC, VSM,and VconfigPro software
One can program ALL VESDAnet parameters from a single location
The VESDA system requires regular system testing, the same as other fire detection services
The optimum detector sensitivity takes the following into consideration: Level of protectionneeded, room environment, nature of work done
The head card, aspirator, manifold, and laser must be replaced as a unit CHASSIS
The more you practice, the luckier you get -- Gary Player
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