VESDA VLF-500 - 8 Specifications; Power Supply; Case; Operating Conditions

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.