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| EPS10-1 AND EPS10-2 Alarm Pressure Switches System Sensor EPS10 Series switches are designed for use in wet, dry, deluge, and pre-action automatic sprinkler systems to indicate a discharge from a sprinkler. Features * Sensitivity adjustment wheel, no special tools required * Reinforced diaphragm resists pressure spikes * Two conduit entrances * Both one- and two-switch models available The EPS10-1 has a single SPDT switch while the EPS10-2 model contains two SPDT switches. The EPS10 Series features field adjustable pressure sensitivity to provide an alarm response between 4 and 20 psi. It is factory set to respond at 4 - 8 psi on rising or falling pressure. The pressure adjustment wheel requires no special tools and does not affect switch synchronization on the EPS10-2. The EPS10 Series switches are NEMA 4 rated. Agency Listings S739 CS169 3005863 VdS 7770-1209:147 167-93-E G4020028-27 Specifications, EPS10-1 and EPS10-2 Architectural/Engineering Specifications EPS10-1 (SPDT), EPS10-2 (2/SPDT) Model shall be an EPS10-1 or EPS10-2 pressure type waterflow switch as manufactured by System Sensor of St. Charles, IL. They shall be installed on the sprinkler system with connection as shown on the drawings and/or as specified herein. Pressure switches shall be of the bellows-activated type. Switches shall have a maximum service pressure rating of 250 psi and shall be factory adjusted to operate at a pressure of 4 - 8 psi. There shall be one (1) or two (2) SPDT contacts rated at 10.0 Amp @ 125/250 VAC and 2.5 Amp @ 6/12/24 VDC. The contractor shall furnish and install, where indicated on the plans, pressure switches according to appropriate NFPA standards. Switches shall be provided with a 1/2 NPT male pressure connection to be connected to the alarm check valve of a "wet" sprinkler system, into the intermediate chamber of a "dry" system, or to a pre-action or deluge valve. They shall be activated by any flow of water equal to or in excess of the discharge from one sprinkler head. Switches shall provide 1 knockout type and 1 open hole for 1/2 conduit fitting attachment and a ground screw provision for electrical grounding. The switch enclosure shall be weatherproof and carry a UL 4x/NEMA 4 rating when used with proper electrical fittings and conduit. The cover shall incorporate tamper-resistant screws. The unit shall be listed by Underwriters Laboratories, Inc. and approved by Factory Mutual. Specifications, EPS10-1 and EPS10-2 (continued) Physical/Operating Specifications Maximum Operating 250 psi Pressure Maximum Adjustment 4 to 20 psi Pressure Range Differential Approximately 3 psi throughout range Factory Setting Operates at rising pressure 4 to 8 psi Switch Contact Ratings EPS10-1: One set SPDT (Form C) EPS10-2: Two sets SPDT (Form C) 10.0 A, 1/2 HP @ 125/250 VAC 2.5 A @ 6/12/24 VDC Pressure Connection 1/2 NPT male glass reinforced nylon Dimensions 5.12 H x 3.325 W x 4.250 L (13.0 cm x 8.4 cm x 10.8 cm) Operating Temperature Range Cover Tamper Switch Enclosure Shipping Weight Service Use Indoor or outdoor use: -40F to 160F (-40C to 71C) UL Models: Optional P/N 546-8000 ULC Models: Factory Installed Rated UL 4x, NEMA 4 for indoor or outdoor use 1.2 lbs. (.54 Kg) Automatic Sprinkler: NFPA 13 One or Two Family Dwelling: NFPA 13D Residential Occupancies up to 4 Stories: NFPA 13R National Fire Alarm Code: NFPA 72 3 years Warranty Typical Sprinkler Applications EPS10 WIRE TO ALARM INDICATING CIRCUIT OF FIRE ALARM CONTROL PANEL ALARM CHECK VALVE TO SPRINKLER SYSTEM WATER MOTOR GONG EPS10 WIRE TO ALARM INDICATING CIRCUIT OF FIRE ALARM CONTROL PANEL ALARM CHECK VALVE TO SPRINKLER SYSTEM TO SPRINKLER SYSTEM CHECK VALVE EPS10 WIRE TO ALARM INDICATING CIRCUIT OF FIRE ALARM CONTROL PANEL WATER MOTOR GONG RETARD RETARD WATER LOCAL ALARM BY-PASS SHUT OFF VALVE VALVE WET SYSTEM DRY PIPE VALVE WATER MOTOR GONG LOCAL ALARM SHUT OFF VALVE OS & Y VALVE WATER BY-PASS VALVE LOCAL ALARM SHUT OFF VALVE OS & Y VALVE OS & Y VALVE WATER BY-PASS VALVE WET SYSTEM DRY SYSTEM Pressure Switch Basic Dimensions 4 41/ Electrical Connections MODEL EPS10-1 SWITCH AT 0 PSI B COM A SWITCH AT 4-8 PSI (HIGH TRIP PT.) B COM A SWITCH 1 GROUND SCREW (GREEN) SWITCH #2 B HEX ADJUSTMENT SCREW MODEL EPS10-2 SWITCHES AT 0 PSI B B COM COM A A SW1 SW2 SWITCHES AT 4-8 PSI (HIGH TRIP PT.) B B COM COM A A SW2 SW1 BOTH SWITCHES ACTIVATE SIMULTANEOUSLY CO M A 51/8 MAIN ADJUSTMENT WHEEL LOCKING SCREW 1 /2 NPT Ordering Information Part No. EPS10-1 EPS10-2 EPSA10-1 EPSA10-2 Replacement Parts S07-66-02 WFDW 546-8000 Description Alarm Waterflow Pressure Switch, One SPDT, 4-20 PSI Alarm Waterflow Pressure Switch, Two SPDT, 4-20 PSI ULC/Canadian Version ULC/Canadian Version Replacement Tamper Screws for Cover of EPS Replacement Tamper Proof Wrench for Cover of EPS Cover Tamper Switch for EPS Series (c)2006 System Sensor. Product specifications subject to change without notice. Visit systemsensor.com for current product information, including the latest version of this data sheet. A05-0176-009 * 9/06 * #1676 3825 Ohio Avenue * St. Charles, IL 60174 Phone: 800-SENSOR2 * Fax: 630-377-6495 |
Price & Availability of EPS10-1
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