VESDA VLF-500-UL Installation Instructions

VESDA VLF-500-UL Installation Instructions
These installation instructions provide essential information for installing VESDA VLF Aspirating Smoke Detectors in accordance with the system design. Additional installation and
product documentation is listed below in the Reference Documents section.
System Components
The detector is shipped with the following components:
1 VESDA VLF detector with fitted exhaust deflector
•
• 1 mounting bracket
• 1 End of Line resistor for the monitored GPI
12 M4 x 20 mm locking screws
•
• 1 installation instruction sheet
• 1 product guide
Prerequisites
• A completed system design documents.
• A 24V DC Power Supply, compliant with local codes and standards.
• Screws and inserts that are appropriate for the mounting suface.
9 Pin DB9 PC COM Serial extension cable (male) for initial configuration of the
•
detector.
Labels as specified in the system design.
•
• Cable glands that are compliant with the IP rating of the detector.
Conduit, as specified in the system design.
•
0.2 mm (24 - 14 AWG) wiring for relays.
2 2
• to 2.5 mm
A PC or laptop installed with Xtralis VSC for initial configuration.
•
• Standard connection instructions for where the detectors are to be added to a corporate
network.
Standards Compliance
UL
For open area installations, ASPIRE should be used to confirm the correct performance
of the sampling network; all sampling point sensitivities must be less than 7%/m (2.13%/
ft). All pipework designs must be modeled in ASPIRE to confirm that the rules for transport
time and sensitivity are met for all sampling points in the sytem.
Note that the maximum pipe length is dependent on pipe layouts and fittings used.
Ensure that the correct setting for UL7 mode in the Smoke Thresholds setting screen of
Xtralis VSC is set correctly for the application, special application modes permit higher
sensitivities and must only be used where cooking will not occur.
Specification Value
Value
0.025
Sensitivity Range
Threshold Setting Range
0.025
Alert
0.025
Action
0.050
Fire 1
0.100
Fire 2
Power Consumption (24 VDC Supply)
VLF-500-UL: 410 mA nominal, 490 mA in alarm
Environmental Requirements
• Temperature
0°C to 39°C (32°F to 103°F)
• Ambient:
Sampled Air: -20°C to 60°C (-4°F to 140°F)
•
-10°C to 55°C (14°F to 131°F)
• Tested to:
Humidity: 5% to 95% RH, non-condensing
•
Note: Please consult your Xtralis representative for information on operation outside
these parameters or where sampled air is continually above 0.05% obs/m
(0.015% obs/ft) under normal operating conditions.
Reference Documents
Additional installation and product information is contained in the following document,
which is available for download at www.xtralis.com.
36286 - VESDA VLF-500-UL Product Guide
•
%obs/m %obs/ft
Max
Min Min
20.0 0.08
10.0 0.08
10.0 0.08
10.0 0.16
20.0 0.32
Installation Instructions
Notes
Installation Procedure
A. Position the air inlet centerline mark (A) of the mounting bracket against the end of
the air inlet pipe.
B. In the cut out section of the mounting bracket mark a line across the top of the cut out
if metric size pipe is used or mark a line across the bottom of the cut out if Imperial
size pipe is used
C. Slide the mounting bracket down (up for inverted mounting) until the top of the
bracket aligns with the marked line
D. Mark off and drill the 2 bracket mounting holes (H).
E. Screw the bracket to the wall.
F. Hook the smoke detector onto the mounting bracket tabs and pull it down into
place
G. Use the two M4 x 20 mm locking screws provided and screw them into the screw
Max
holes on the left andright side of the detector. See the items marked (F) in below
6.25
figure.
H. The air sampling pipe can now be attached and power connected.
3.05
3.05
3.05
6.10
The VESDA-detector can be mounted in an upright
or inverted position. Do not mount the detector with
a sideways orientation.
Ensure the mounting surface is flat as this allows an
air tight seal to be achieved between the sampling
pipe and the tapered air inlet pipes on the detector.
Refer to the detector Product Guide for information
on inverted mounting.
Ensure that there is sufficient clearance to mount
the detector, noting the location of air sampling
pipes and cable entry points. Due to the rigid nature
of the plastic pipe, installation must provide for
sufficient movement in all pipework (air inlet, air
exhaust and cable pipes) to allow pipe ends to be
easily fitted and removed.
• A: Minimum 200 mm (8 in.) below ceiling
level.
• B: Min. 500 mm (20 in.) from a wall or
obstruction to allow access to the security
tab