FireNET Vapor VPR-SD1 Product Guide
Hochiki America Corporation
2.3
Point Detectors
The supported point detectors have successfully passed required tests to allow use within the VPR-SD1 product
and application. Refer to Chapter 3 on page 13 for further details of how dilution affects detector sensitivity.
If the installation is to be done in accordance with NFPA 72 requirements, then the detector must have been tested
for use in the system. Please refer to the list of approved detectors in Section 2.3.1.
2.3.1
Point Detector Selection
The following detectors have been listed for use in the VPR-SD1 unit and are suitable for installations requiring a UL
Listing. The table shows the limits that should not be exceeded if the installation is to conform to requirements. All
figures are based on the following configurations:
l
Meets standard pipe configurations shown in Section 3.9
l
Fan speed of 9 unless otherwise stated
l
Low fault threshold = 4
l
High fault threshold = 8
l
Flexible tube ID = 1/2 in (12.7 mm)
Table 2-1: Tested and Certified Detectors
Detector
Sensitivity
Air Velocity Range(s)
Open Area Holes per Pipe
Hochiki Analog ALK-V
1.00 %/ft - 2.06 %/ft
Open Area
0 – 300 FPM
Duct
l
0 - 2000 FPM – 1.00 %/ft – 2.06 %/ft
l
2000 – 3000 FPM – 1.0 %/ft – 1.5 %/ft
l
3000 – 4000 FPM – 1.0 %/ft
l
1 hole, 5/16"
l
2 holes, 13/64"
Note:
For open area protection, all holes must be in the same space without any physical barriers.
10
www.hochiki.com