VESDA by Xtralis
VESDA VLF-500 Product Guide
www.xtralis.com
39
8
Specifications
8.1
Power Supply
Supply Voltage
24 VDC nominal (18 - 30 VDC)*
Power Consumption @ 24 VDC
9.8 W nominal, 11.7 W in alarm*
Current Consumption @ 24 VDC
410 mA nominal, 490 mA in alarm*
*For code-specific information, refer to Codes and Standards Information for Air Sampling Smoke Detection on page iii.
8.2
Case
Dimensions (WHD)
256 mm x 183 mm x 92 mm
(10 1/16in x 7 1/5 in x 3 2/3 in)
Weight
2 kg (approx. 4.4 lbs)
IP Rating
IP30
Mounting
Upright, inverted or horizontal with
appropriate mounting bracket
Maintenance access
Instant Fault Finder, Filter and
Programming Port
8.3
Operating Conditions
Detector Ambient
0°C to 39°C (32°F to 103°F)*
Tested to (EN54-20)
-10°C to 55°C (14°F to 131°F)
Sampled Air **
-20°C to 60°C (32°F to 140°F)
Humidity (non-condensing)
5% to 95%
* Product UL listed for use from 0°C to 38°C (32°F to 100°F).
** Sampled Air temperature shall reach Ambient Detector temperature upon entry into Detector. Refer to Xtralis Design Guides &
Application Notes for sampled air pre-conditioning.
8.4
Sampling Network
Air inlet pipe
OD 25 mm (ID 21 mm) / IPS ¾ in. (OD
1.05 in.)
Alternate pipe sizes can be modelled with ASPIRE
Single pipe length
50 m (150 ft.) max.
Single pipe - Sampling holes
5-8 sampling holes pre-engineered
For 9-24 sampling holes model with ASPIRE*
Branch (2) pipe length
30 m (90 ft.) max. per branch
Branch (2) - Sampling holes per branch
3-6 sampling holes pre-engineered
For 7-12 sampling holes model with ASPIRE
Return Air Sampling – U Shaped design
per branch
8-14 sampling holes pre-engineered
For 9-24 sampling holes model with ASPIRE
*For code-specific information, refer to Codes and Standards Information for Air Sampling Smoke Detection on page iii.
