EPS10-1 SYSTEMSENSOR | Alldatasheet

Document overview

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Technical content

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 fi eld 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 aff ect switch synchronization on the EPS10-2. The EPS10 Series switches are NEMA 4 rated. CS169 3005863 7770-1209:147 167-93-E VdS G4020028-27 S739 Specifications, EPS10-1 and EPS10-2 Architectural/Engineering Specifi cations EPS10-1 (SPDT), EPS10-2 (2/SPDT) Model shall be an EPS10-1 or EPS10-2 pressure type waterfl ow 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 specifi ed 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 ½˝ 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 fl ow 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 ½˝ conduit fi tting 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 fi ttings and conduit. The cover shall incorporate tamper-resistant screws. The unit shall be listed by Underwriters Laboratories, Inc. and approved by Factory Mutual.

3825 Ohio Avenue • St. Charles, IL 60174 Phone: 800-SENSOR2 • Fax: 630-377-6495 ©2006 System Sensor. Product specifi cations 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

Ordering Information

Part No. Description EPS10-1 Alarm Waterfl ow Pressure Switch, One SPDT, 4–20 PSI EPS10-2 Alarm Waterfl ow Pressure Switch, Two SPDT, 4–20 PSI EPSA10-1 ULC/Canadian Version EPSA10-2 ULC/Canadian Version Replacement Parts S07-66-02 Replacement Tamper Screws for Cover of EPS WFDW Replacement Tamper Proof Wrench for Cover of EPS 546-8000 Cover Tamper Switch for EPS Series Typical Sprinkler Applications ALARM CHECK VALVE OS & Y VALVE WATER BY-PASS VALVE LOCAL ALARM SHUT OFF VALVE RETARD WATER MOTOR GONG EPS10 WET SYSTEM WIRE TO ALARM INDICATING CIRCUIT OF FIRE ALARM CONTROL PANEL TO SPRINKLER SYSTEM ALARM CHECK VALVE OS & Y VALVE WATER BY-PASS VALVE LOCAL ALARM SHUT OFF VALVE RETARD WATER MOTOR GONG EPS10 WET SYSTEM WIRE TO ALARM INDICATING CIRCUIT OF FIRE ALARM CONTROL PANEL TO SPRINKLER SYSTEM DRY PIPE VALVE OS & Y VALVE WATER BY-PASS VALVE LOCAL ALARM SHUT OFF VALVE WATER MOTOR GONG CHECK VALVE EPS10 DRY SYSTEM WIRE TO ALARM INDICATING CIRCUIT OF FIRE ALARM CONTROL PANEL TO SPRINKLER SYSTEM Pressure Switch Basic Dimensions Electrical Connections HEX ADJUSTMENT SCREW MAIN ADJUSTMENT WHEEL 1/4″ 51/8″ LOCKING SCREW 1/2″ NPT COM AB GROUND SCREW (GREEN) SWITCH #2 MODEL EPS10-1 A COM B SWITCH AT 0 PSI SWITCH AT 4-8 PSI (HIGH TRIP PT.) B COM A SWITCH 1 MODEL EPS10-2 SWITCHES AT 0 PSI B COM A B COM A A COM B A COM B BOTH SWITCHES ACTIVATE SIMULTANEOUSLY SW1 SW2 SW1 SW2 SWITCHES AT 4-8 PSI (HIGH TRIP PT.) Specifications, EPS10-1 and EPS10-2 (continued) Physical/Operating Specifi cations Maximum Operating Pressure 250 psi Operating Temperature Range Indoor or outdoor use: –40°F to 160°F (–40°C to 71°C) Maximum Adjustment Pressure Range 4 to 20 psi Cover Tamper Switch UL Models: Optional P/N 546-8000 ULC Models: Factory Installed Diff erential Approximately 3 psi throughout range Enclosure Rated UL 4x, NEMA 4 for indoor or outdoor use Factory Setting Operates at rising pressure 4 to 8 psi Shipping Weight 1.2 lbs. (.54 Kg) Switch Contact Ratings EPS10-1: One set SPDT (Form C) EPS10-2: Two sets SPDT (Form C)

10.0 A, ½ HP @ 125/250 VAC

2.5 A @ 6/12/24 VDC

Service Use 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 Pressure Connection ½˝ NPT male glass reinforced nylon Warranty 3 years Dimensions 5.12˝ H × 3.325˝ W × 4.250˝ L (13.0 cm × 8.4 cm × 10.8 cm)