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D770-08-00 

I56-0551-007R

EPS10 Series Alarm 
Pressure Switches 

INSTALLATION  AND  MAINTENANCE  INSTRUCTIONS

 3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

www.systemsensor.com

Important

Please Read Carefully and Save

This  instruction  manual  contains  important  information 
about  the  installation  and  operation  of  alarm  pressure 
switches. Purchasers who install switches for use by others 
must leave this manual or a copy of it with the user.

Read  all  instructions  carefully  before  installation,  follow-
ing only those instructions that apply to the model you are 
installing.

Before installing any alarm device, be thoroughly familiar 
with:

NFPA 72: 

Installation, Maintenance, and Use of Protective 
Signaling Systems

NFPA 13: 

Installation of Sprinkler Systems

NFPA 13A: 

Inspection,  Testing,  and  Maintenance  of 
Sprinkler Systems

Other  applicable  NFPA  standards,  local  codes,  and  the 
requirements of the authority having jurisdiction.

Failure to follow these directions may result in failure of the 
device to report an alarm condition. System Sensor is not 
responsible for devices that have been improperly installed, 
tested, or maintained.

CAUTION

Do not use in potentially explosive atmospheres. 

Do not leave unused wires exposed.

Specifications

Contact Ratings: 

10 A, 

1

/

2

 HP @ 125/250 VAC 

 

2.5A @ 6/12/24 VDC 

Overall Dimensions: 

See Figure 1

Operating Temperature Range: 

–40° to +160°F

Maximum Service Pressure: 

250 PSI

Maximum Adjustment Range: 

 4 – 20 PSI

Enclosure Rating: 

UL 4x — Indoor or Outdoor Use

 

NEMA 4 — Indoor or Outdoor Use

 

IP54

Approximate Differential: 

3 PSI throughout range

Operation

As  pressure  changes,  a  diaphragm  actuates  1  or  2  snap 
action  switches.  The  pressure  switch  actuation  is  deter-
mined by adjustment settings.

Installation

1. Remove Cover
  Cover  is  held  on  by  two  tamper  resistant  screws. 

(Removal key is enclosed with pressure switch.)

2. Mounting the Switch
  The device is designed to be mounted in the upright or 

horizontal  position;  side  mounting  is  also  acceptable. 
Locate it where vibration, shock, and mechanical load-
ing  are  minimal.  Refer  to  piping  diagram  (Figure  2  on 
page 2).

Figure 1. Pressure switch basic dimensions:

W0170-00

HEX

ADJUSTMENT

SCREW

MAIN ADJUSTMENT

WHEEL

4-1/4"

5-1/8"

LOCKING SCREW

1/2" NPT

COM

A

B

GROUND

SCREW

(GREEN)

SWITCH #2

I56-0551-007R

Содержание EPS10 Series

Страница 1: ... condition System Sensor is not responsible for devices that have been improperly installed tested or maintained CAUTION Do not use in potentially explosive atmospheres Do not leave unused wires exposed Specifications Contact Ratings 10 A 1 2 HP 125 250 VAC 2 5A 6 12 24 VDC Overall Dimensions See Figure 1 Operating Temperature Range 40 to 160 F Maximum Service Pressure 250 PSI Maximum Adjustment R...

Страница 2: ... Figure 3 and Table 1 WET SYSTEM ALARM CHECK VALVE OS Y VALVE WATER BY PASS VALVE LOCAL ALARM SHUT OFF VALVE RETARD WATER MOTOR GONG EPS10EXP WET SYSTEM ALARM CHECK VALVE OS Y VALVE WATER BY PASS VALVE LOCAL ALARM SHUT OFF VALVE RETARD WATER MOTOR GONG EPS10EXP DRY SYSTEM ALARM CHECK VALVE OS Y VALVE WATER BY PASS VALVE LOCAL ALARM SHUT OFF VALVE WATER MOTOR GONG CHECK VALVE EPS10 WET SYSTEM WET S...

Страница 3: ...nge of switch 4 Retest the set point several times to ensure accuracy of setting 5 Re seat locking screw Table 2 Factory Settings PSI MODEL Fall Low Switch Approx Reset Rise High Switch EPS10 1 EPS10 2 3 PSI diff 3 PSI diff 4 8 4 8 Approx Reset D770 08 00 3 I56 0551 007R NOTE The sensor assembly is not field replaceable Do not attempt to disassemble these parts If you have any questions consult Sy...

Страница 4: ...rn Authorization number send defective units postage prepaid to System Sensor Return Please refer to insert for the Limitations of Fire Alarm Systems Three Year Limited Warranty Department RA __________ 3825 Ohio Avenue St Charles IL 60174 Please include a note describing the malfunction and suspected cause of failure The Company shall not be obligated to repair or replace units which are found to...

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