POTTER WFS-5 Waterflow Switch Owner’s Manual
- June 9, 2024
- POTTER
Table of Contents
POTTER WFS-5 Waterflow Switch
FEATURES
- ULC LISTED: As extinguishing system attachments, Fire Alarm (3813 EO)
- APPROVALS: FM (Factory Mutual)
- Pressure Setting: Trips on rising pressure at 5 ± 1 psi On-Off Differential: Minimum 1 psi
- Adjustment: Factory set, non-adjustable
- Alarm Switch: SPDT for use with NO or NC circuits (Class A or B)
- Entrapped Terminals: Meets ULC Installation Stan-dards of Fire Alarm System, CAN-5524-M8
- Electrical Rating: 250VAC 15A 1/4 HP, 125VAC 15A 1/8 HP, 250VDC 0.2A, 125VDC 0.4A, 30VDC 2A
- Pipe Connection: 1/2 NPT male
- Proof Pressure: 400 psi, 27.6 bar
- Max. Operating Pressure: 175 psi
- Cover: Cast aluminum, fire engine red paint
- Base: Zinc Plated Steel
- Weight: Approx. 1 lb, 10 oz (.75 kg)
- Installation: See instructions on page 2 of this bulletin To Order: Specify Potter Model WFS-5 Waterflow Switch
MODEL WFS-5
(FRONT VIEW SHOWN WITH COVER REMOVED)
This precision ULC Listed Sprinkler Switch is designed as a waterflow alarm switch to sound Local or Central Station alarms to indicate water is flowing from a sprinkler head on wet or dry systems. Designed to be connected to the alarm port and operate on pressure increase.
MECHANICAL MOUNTING
- Mount in any position via 1/2″ NPT male fitting (wrench tighten).
- Seal threads with teflon tape to seal properly.
- Install conduit and conduit connectors using 7/8″ diameter hole (for 1/2″ conduit).
- Test fitting for leakage under maximum operating pressure, to the standard of the authority having jurisdiction.
ELECTRICAL CONNECTIONS
- ELECTRICAL RATING: 250VAC 15A 1/4 HP 125VAC 15A 1/8 HP 250VDC 0.2A 125VDC 0.4A 30VDC 2A
Suitable for connection to CLASS A or CLASS B circuits, NO or NC configuration.
TAMPER SWITCH ELECTRICAL CONNECTION
TESTING: Test function of switch to the standard of the authority having jurisdiction.
References
- Fire Alarm Resources | Download fire alarm documents
- Potter Electric: Fire Alarms & Fire Sprinkler Systems
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