Potter Releasing Systems - Manual (Page 88)

88
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VSR
VANE TYPE WATERFLOW
ALARM SWITCH WITH RETARD
MFG. #5401146 - REV L
3/09
General Information
The Model VSR is a vane type waterflow switch for use on wet sprinkler
systems. It is UL Listed and FM Approved for use on steel pipe;
schedules 10 through 40, sizes 2" thru 8" (50 mm thru 200 mm). LPC
approved sizes are 2" thru 8" (50 mm thru 200 mm). See Ordering
Information chart.
The VSR may also be used as a sectional waterflow detector on large
systems. The VSR contains two single pole, double throw, snap action
switches and an adjustable, instantly recycling pneumatic retard. The
switches are actuated when a flow of 10 GPM (38 LPM) or more occurs
downstream of the device. The flow condition must exist for a period
of time necessary to overcome the selected retard period.
UL, CUL and CSFM Listed, FM Approved, LPCB Approved, For
CE Marked (EN12259-5) / VdS Approved model use VSR-EU
Service Pressure: 450 PSI (31 BAR) - UL
Flow Sensitivity Range for Signal:
4-10 GPM (15-38 LPM) - UL
Maximum Surge: 18 FPS (5.5 m/s)
Contact Ratings: Two sets of SPDT (Form C)
10.0 Amps at 125/250VAC
2.0 Amps at 30VDC Resistive
10 mAmps min. at 24VDC
Conduit Entrances: Two knockouts provided for 1/2" conduit.
Individual switch compartments suitable
for dissimilar voltages.
Environmental Specifications:
• NEMA 4/IP54 Rated Enclosure suitable for indoor or
outdoor use with factory installed gasket and die-cast housing
when used with appropriate conduit fitting.
• Temperature Range: 40°F - 120°F, (4.5°C - 49°C) - UL
• Non-corrosive sleeve factory installed in saddle.
Service Use:
Automatic Sprinkler NFPA-13
One or two family dwelling NFPA-13D
Residential occupancy up to four stories NFPA-13R
National Fire Alarm Code NFPA-72
• Installation must be performed by qualified personnel and in
accordance with all national and local codes and ordinances.
• Shock hazard. Disconnect power source before servicing. Serious
injury or death could result.
• Risk of explosion. Not for use in hazardous locations. Serious
injury or death could result.
Ordering Information
Nominal Pipe Size Model Part Number
2" DN50 VSR-2 1144402
2 1/2" DN65 VSR-2 1/2 1144425
3" DN80 VSR-3 1144403
3 1/2" - VSR-3 1/2 1144435
4" DN100 VSR-4 1144404
5" - VSR-5 1144405
6" DN150 VSR-6 1144406
8" DN200 VSR-8 1144408
Specifications subject to change without notice.
Optional: Cover Tamper Switch Kit, stock no. 0090148
Replaceable Components: Retard/Switch Assembly, stock no. 1029030
Enclosure
The VSR switches and retard device are enclosed in a general purpose,
die-cast housing. The cover is held in place with two tamper resistant
screws which require a special key for removal. A field installable
cover tamper switch is available as an option which may be used
to indicate unauthorized removal of the cover. See bulletin number
5401103 for installation instructions of this switch.
Waterflow switches that are monitoring wet pipe sprinkler systems shall
not be used as the sole initiating device to discharge AFFF, deluge,
or chemical suppression systems. Waterflow switches used for this
application may result in unintended discharges caused by surges,
trapped air, or short retard times.
Potter Electric Signal Company, LLC • St. Louis, MO • Phone: 866-956-1211/Canada 888-882-1833 • www.pottersignal.com