EPS40-1 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 EPS40-1 has a single SPDT switch while the EPS40-2 model contains two SPDT switches. The EPS40 Series features fi eld adjustable pressure sensitivity to provide an alarm response between 10 and 100 psi. All models are factory set for use in a nominal 40 psi system. The EPS40-1 is factory set to respond at 30 psi at decreasing pressure while the EPS40-2 is factory set to respond at 50 psi on rising pressure and 30 psi at decreasing pressure. The pressure adjustment wheel requires no special tools and does not aff ect switch synchronization on the EPS40-2. The EPS40-1 and EPS40-2 supervisory pressure switches are NEMA 4 rated. S739 Specifications, EPS40-1 and EPS40-2 Architectural/Engineering Specifi cations EPS40-1 (SPDT), EPS40-2 (2/SPDT) Model shall be an EPS40-1 or EPS40-2 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 adjustable from 10 – 100 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 into the air supply line on the system side of any shut-off valve. 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., the California State Fire Marshal, MEA, CSFM, LPCB, VdS and approved by Factory Mutual. 0X0A7.AY CS169 VdS G4020028 7770-1209:147 167-93-E 118f/01

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. A05-0177-010 • 9/06 • #1676

Ordering Information

Part No. Description EPS40-1 Low Pressure Supervisory Switch, One SPDT, 10–100 PSI EPS40-2 High/Low Pressure Supervisory Switch, Two SPDT, 10–100 PSI EPSA40-1 Low Pressure Supervisory Switch, One SPDT, 10–100 PSI (ULC Model) EPSA40-2 High/Low Pressure Supervisory Switch, Two SPDT, 10–100 PSI (ULC Model) Replacement Parts S07-66-XX 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 Pressure Switch Basic DimensionsElectrical Connections HEX ADJUSTMENT SCREW MAIN ADJUSTMENT WHEEL 1/4″ 51/8″ LOCKING SCREW 1/2″ NPT COM AB GROUND SCREW (GREEN) SWITCH #2 Specifications, EPS40-1 and EPS40-2 (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 10 to 100 psi Cover Tamper Switch UL Models: Optional P/N 546-8000 ULC Models: Factory Installed Diff erential Approximately 3 psi @ 10 psi, 6 psi @ 100 psi Enclosure Rated UL 4x, NEMA 4 for indoor or outdoor use Factory Setting EPS40-1 operates at decreasing pressure at 30 psi EPS40-2 operates at increasing pressure at 50 psi and decreasing pressure at 30 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 Warranty 3 years Dimensions 5.12˝ H × 3.325˝ W × 4.250˝ L (13.0 cm × 8.4 cm × 10.8 cm) DRY PIPE VALVE OS & Y VALVE WATER BY-PASS TEST VALVE LOCAL ALARM SHUT OFF VALVE WATER MOTOR GONG CHECK VALVE EPS40 CHECK VALVEAIR LINE SHUT-OFF VALVE INSTALL BLEEDER VALVE FOR TESTING EPS40 DRY SYSTEM WIRE TO SUPERVISORY CIRCUIT OF FIRE ALARM CONTROL PANEL WIRE TO ALARM INDICATING CIRCUIT OF FIRE ALARM CONTROL PANEL TO SPRINKLER SYSTEM MODELS EPS40-1 SWITCH AT 40 P.S.I. (NORMAL) SWITCH AT 30 P.S.I. (LOW TRIP PT.) B COM A A COM B SWITCH 1 SW2SW1 SWITCHES AT 40 P.S.I. (NORMAL) SWITCHES AT 30 P.S.I. (LOW TRIP PT.) SW1 SW2 MODELS EPS40-2 SWITCHES AT 50 P.S.I. (HIGH TRIP PT.) SW1 SW2 B COM A B COM A B COM A A COM B A COM B A COM B