Sea-Fire 131-440 Service manual

SEA-FIRE MARINE – USA SEA-FIRE EUROPE, LTD
Baltimore, Maryland Hampshire, United Kingdom
Your Onboard Safe Choice www.sea-fire.com www.sea-fire.co.uk
A Division of Metalcraft, Inc.
123-567 Rev. A
Engine Shutdown Restart
System (ESRS)
Installation Instructions
Owner’s Manual
PN: 131-440 (4 Relay Circuits), PN: 131-445 (6 Relay Circuits), and PN: 131-450 (8 Relay Circuits)
Warning: This Sea-Fire Engine Shutdown Restart System has been designed and
tested for use with Sea-Fire automatic and manual fire suppression systems.
Installation must be accomplished by or under the supervision of a qualified marine
electrician who is familiar with American Boat and Yacht Council (ABYC) or other
recognized and accepted marine standards and practices.
Caution: Do not install this device in fuel storage compartments. See the installation
section of this manual for further details.
Read this manual thoroughly and comply with all instructions, warnings, and
cautions prior to installation.
THIS MANUAL IS AN INTEGRAL PART OF THE SYSTEM AND AS SUCH, THE SYSTEM
MUST BE INSTALLED AND MAINTAINED ACCORDINGLY.
RETAIN THIS MANUAL FOR REFERENCE

Page 2 of 12 123-567 Rev. A
1GENERAL SPECIFICATIONS
Operating Voltage: 12 - 32 VDC
Backup Power Supply: 12 - 32 VDC
Power Supply Protection: 3A Fuse
Internal Voltage Protection - 3
diodes
Pressure Switch - 2 normally closed
inputs
Visual Indications - POWER - Green
PS1 - Red
PS2 - Red
Buzzer: 85 dB @ 10 cm
Standby Power Consumption
PN: 131-440: 13 VDC, 370 mA
28 VDC, 180 mA
PN: 131-445: 13 VDC, 570 mA
28 VDC, 260 mA
PN: 131-450: 13 VDC, 750 mA
28 VDC, 350 mA
Shutdown (Discharged) Power
Consumption (All three Models)
13 VDC, 100 mA
28 VDC, 100 mA
Enclosure Material: Grey flame
retardant ABS
Flame Rating: UL94-5VA (with
textured cover)
Enclosure Protection level: Ingress
protection 66 (IP66)
Operating Temperature: -7oC/20oF
to 54oC/130oF
Storage Temperature: -7oC/20oF to
54oC/130oF
Display Connection: CAT-5 VIA RJ45
Socket
Relays: 5 VDC Form C –
Normally Open (N/O) 20A
Normally Closed (N/C) 10A
Connectors - Wago 739, Max wire
size 12AWG/2.5 mm
Dimensions:
7.29 (W) x 4.72(H) x 2.37(D) inch
185.2(W) x 119.9(H) x 60.2(D) mm
Weight: 0.6 kg / 1.3 lb
Mounting: Surface
Compliant: RoHS, CE
1.1 Features
Fully automatic engine
shutdown system
Shutdown override
mode
Power-On visual
indication
Pressure Switch (PS1)
Visual and audible
indication (Agent
Discharge)
Pressure Switch (PS2)
Visual and audible
indication (Sensor
Switch Warning)
Compact construction
Optional Time Delay reset
function
2OPERATION
The Engine Shutdown Restart unit is a low voltage microcontroller unit designed to
integrate with the Sea-Fire Fire Suppression System to shut down the engine(s),
blower(s), generator(s), damper(s) and other machinery in the protected space
should fire or extreme overheating cause the Sea-Fire automatic Fire Suppression
System to discharge. The engine shutdown will ensure that the fire suppression

Page 3 of 12 123-567 Rev. A
agent, in its proper concentration, will remain in the enclosed compartment and
not be ingested or reduced by the running machinery.
Immediately upon agent discharge, the ESRS PS1 closed loop circuit opens,
activating the alarm and de-energizing all the relays. De-energizing the relays will
change the state of the internal contacts and shut down all the machinery
connected to the ESRS unit. The PS1 LED on the Unit and the DISCHARGE LED on
the Display Panel illuminate. The activated alarm can be silenced by pressing the
SILENCE button on the ESRS unit or on the connected Display Panel.
After a discharge or loss in cylinder pressure resulting in an opened PS1 loop,
simultaneously pressing the SILENCE and the “ ” buttons will put the ESRS into
override enabling all the machinery connected to the ESRS to restart. The ESRS can
only be properly reset after the discharged agent cylinder has been
refilled/replaced and then the SHUTDOWN RESET buttons pressed to put the unit
back into the standby mode. In the standby mode, only the POWER green LED on
the ESRS and the Display Panel will remain on.
If there is a High-Temperature, Low-Pressure or an Auxiliary Discharge sensor
switch connected to the PS2 terminals when the sensor switch opens, the alarm
activates and both the PS2 LED on the unit and the Second Zone LED on the Display
Panel illuminate. There will be no change to the relays’ state. The activated PS2
circuit alarm can be silenced by pressing the SILENCE button on the ESRS box or on
the connected Display Panel. Reset the unit after the PS2 circuit condition has been
remedied by pressing the SHUTDOWN RESET buttons. The unit is now in standby
mode.
3ESRS INSTALLATION
CAUTION: Make sure all power sources are shut down prior to installation.
Install the ESRS unit in a conveniently accessible and well-ventilated location. The
ESRS should not be exposed to environmental temperatures (in excess of
54oC/130oF) for an extended period. This will affect the service life of the unit and
may cause premature failure.
3.1 Installation Location
It is important that the ESRS unit is installed in a location that will not
build up heat or be exposed to external heat sources.
If installed in a box or cabinet, the enclosure should have sufficient
ventilation.
When installed in the engine room, the ESRS should be installed with
sufficient protection from the hazards of that space, but must still have a
way to dissipate heat and not be overheated by other sources.
WARNING: Do not install the ESRS Unit in a sealed enclosure.

Page 4 of 12 123-567 Rev. A
3.2 Mounting the ESRS Unit
Use the ESRS unit 4 mounting screw holes (screw not included) to mount the
unit. Connect the Display Panel to the ESRS unit via the RJ45 socket using the
CAT-5 cable. Longer CAT-5 cables (10’, 20’, 50’, 100’ and 150’) are available
to increase the distance between the ESRS and the Display Panel. Refer to
the Display Panel installation manual for the correct installation instruction.
3.3 ESRS Unit Wiring Installation
Use a minimum of 16 American Wire Gauge (AWG) (SAE J3788 or J1128)
according to American Boat and Yacht Council (ABYC) [or equivalent
international standard] marine grade wire to connect all devices and power
to the ESRS. Connect the wire to the ESRS unit by pushing a 1/8” flathead
screwdriver into the square opening on the top of the terminal block. This
opens the spring cage allowing a stripped wire to be installed into the round
hole on the connector. See Figure 1.
Figure 1 Terminal Block Slot
Properly ground all the Machinery connected to the ESRS unit.
3.3.1 ELECTRICAL INPUT/OUTPUT CONNECTIONS
Figure 2: Input/Output Terminal Block
3.3.1.1 The ESRS Pressure Switch (PS1) Terminals 1 and 2 connection
Install one of the wires from the Cylinder Low-Pressure Switch or
from the Discharge Pressure Switch to the terminals marked “1” and
the other wire to the terminal marked “2”. See Figure 2.

Page 5 of 12 123-567 Rev. A
3.3.1.2 The ESRS Pressure Switch (PS2) Terminals 3 and 4 connection
The ESRS unit has a wire jumper installed across PS2 terminals from
the factory. If the ESRS PS2 terminals are being used, remove the
wire jumper. Leave the wire jumper in-place if the PS2 terminals are
not being used.
Install one of the wires from the High Temp Sensor or the Cylinder
Low-Pressure Supervisory Switch to the terminal marked “3” and
the other wire to the terminal marked “4”. See Figure 2.
oLow-Pressure Switch/Auxiliary Cylinder Supervisory Switch -
When the pressure in the cylinder drops to an unserviceable
(low) pressure, the switch shall open activating the early
warning alarm.
oTemperature Sensor – When the temperature in the protected
zone goes above the fixed temperature of the sensor, the
sensor shall open activating the early warning alarm.
3.3.1.3 Power Supply Terminals – Main Supply, Backup Supply, and Generator
The ESRS Unit has 3 diode-protected inputs but only one power
source is needed to operate the ESRS and should be connected to
“+” and GND. See Figure 2.
oIf available, a backup power source should be connected to one
of the additional power source inputs.
Connect the ESRS unit to the power source(s) using a 5A circuit
breaker with an ON/OFF switch. Use the breaker switch to turn the
ESRS Unit OFF when all the machinery is OFF and to turn the ESRS
Unit ON if any machinery is ON.
3.3.1.4 RJ45 Port
The RJ45 socket connects the Display Panel to the ESRS unit via a
supplied CAT-5 cable. Install one end of the CAT-5 cable into the
ESRS unit RJ45 socket and the other end into one of the Display
Panel RJ45 socket.
oConnect Multiple Display Panels to the ESRS unit by using the
available RJ45 socket on the back of the Display Panel.
Check the Display Panel Installation Manual on how to correctly connect and use
the Display Panel.

Page 6 of 12 123-567 Rev. A
Table 1: Compatible Display Panels: “Fire Suppression System Monitor and Engine
Shutdown Control”
Part Number
Display Panel indicators and shape
131-460
Power and Discharge Indication,
Rectangle
131-461
Power and Discharge Indication,
Round
131-462
Power, Discharge, and High Temp
Indication, Rectangle
131-463
Power, Discharge, and High Temp
Indication, Round
131-464
Power, Discharge, and Aux Zone
Indication, Rectangle
131-465
Power, Discharge, and Aux Zone
Indication, Round
131-466
Power, Discharge, and Low-
Pressure Indication, Rectangle
131-467
Power, Discharge, and Low-
Pressure Indication, Round
3.3.1.5 Multiple Cylinder Supervisory Switch Connection to the ESRS PS1
When connecting more than one pre-engineered cylinder
supervisory pressure switch to the ESRS Unit, connect all the
supervisory pressure switches in series. Connect the leading
pressure switch wire to the Terminal marked “1” and the trailing
wire of the last pressure switch to the Terminal marked “2” (See
Figure 2).
When connecting more than one Engineered System cylinder
supervisory switch to the ESRS unit, connect all the cylinder
supervisory switches in series. Connect the leading pressure switch
wire to the Terminal marked “3” and the trailing wire of the last
pressure switch to the Terminal marked “4” (See Figure 2).
When connecting more than one Engineered System discharge
pressure switch, reference the engineered fire suppression manual
and electrical circuit diagram provided as part of the system.
3.3.1.6 Engine or Machinery connection
Refer to the Original Equipment Manufacturers (OEM) Engine or the
machinery installation manual for the correct method of connection
to relays of the ESRS unit. Equipment manufacturers have a variety
of methods to control their equipment.

Page 7 of 12 123-567 Rev. A
4Relay Operation
This section provides the basic operation of the relays in the ESRS unit.
4.1 Relay Contact Specification
Table 2: Relay Contact Specification
Item
Value
Contact
SPDT (1 Form C)
Contact Current
10A NC / 20A NO
Contact Voltage VAC (Maximum allowable)
277VAC
N/C – Normally Closed Contact
N/O – Normally Open Contact
COM – Common Terminal
4.2 The Relay Energized State
When the ESRS is operational and in the standby mode, all the relays should
be in the energized state.
The N/C terminal is open.
The N/O and the COM terminals are connected.
4.3 The Relay De-Energized State
When the ESRS is operational and is in the shutdown state, all the relays
should be in the de-energized state.
The N/C and the COM terminals are connected.
The N/O terminal is open.
4.4 Relay 20 Second Reset
Automatic reset timer functions are optional in the ESRS. Please contact Sea-
Fire Marine for additional instruction regarding the setting of the relay 20-
second reset timer.
5INSTALLATION CHECK
5.1 Check that all the machinery wires installed in the ESRS terminal blocks are
correct and secure as described above and from the machinery’s installation
manuals.
5.2 Apply power to the ESRS. The green POWER LED on the ESRS Unit and Display
Panel should illuminate.
5.3 Start vessel engine(s) and all other machinery connected to / controlled by the
ESRS.
5.4 Press the “ ” Dimmer Button on the Display Panel and the Green Power LED
intensity on the panel and the ESRS Unit shall change. Press again to return to
full brightness.
5.5 Open the “PS1” circuit loop. The relays should de-energize, all connected
machinery should shut down, the alarm should sound and the red “PS1” LED on

Page 8 of 12 123-567 Rev. A
the ESRS Unit should illuminate as well as the red Discharge LED on the Display
Panel.
5.6 Press the “SILENCE” button on the Display Panel or on the ESRS Unit to silence
the alarm.
5.7 With the PS1 circuit still open, put the ESRS into override by simultaneously
pressing the “SILENCE” and the “ ” buttons on display panel.
a) The connected machinery should be able to be restarted.
b) The red Discharged LED on the Display Panel and the red PS1 LED on the
ESRS unit will remain illuminated.
5.8 Reset the unit by closing the PS1 circuit loop and simultaneously press the
“SILENCE” and the “ ” buttons.
5.9 The Green POWER LED on display panel and ESRS Unit should be the only LEDs
lit.
The PS2 circuit
5.10 If applicable, open the “PS2” circuit. The alarm should sound and both the
“PS2” LED on the ESRS Unit and the Second Zone (Low Pressure, High Temp
or Aux Discharge) LED on the Display Panel should illuminate. The Relays
should remain in the energized state.
5.11 Reset the unit by closing the PS2 circuit and simultaneously press the
“SILENCE” and the “ ” buttons.
5.12 The Green power LED on the Display panel and the ESRS unit should be the
only LEDs lit.
5.13 Use one of the Display Panels in a multiple Display Panel chain to reset the
ESRS unit.
6COMMON PROBLEM TROUBLESHOOTING GUIDE
Caution: Turn off all power sources before installation, prior to
removing or servicing.
Problem
Possible Cause(s)
Action
1. The Power LED on
the Unit does not
come on.
There is no input power
source.
The ESRS power
converter is damaged.
Recycle power to the
ESRS unit.
Check input voltage
source connected to
the ESRS.
2. The Alarm and the
PS1 LED are on.
There is no continuity
across terminal 1 and 2.
The cylinder has
discharged or has a loss
of pressure.
Check the Cylinder
pressure gauge.
Check for continuity
across terminals 1 and
2 with pressure switch
wires connected.

Page 9 of 12 123-567 Rev. A
Problem
Possible Cause(s)
Action
3. The Alarm and the
PS2 LED are on but
there is a wire
jumper across
terminals 3 and 4.
The jumper across
terminal 3 and 4 is not
making good contact with
the terminals.
Recycle power to the
ESRS unit.
Remove and re-install
jumper.
The ESRS has an internal
fault.
Recycle power to the
ESRS unit.
Replace the ESRS unit.
4. The PS1 and the
PS2 LED are on, the
Alarm does not
silence AND the
unit does not reset.
The ESRS has an internal
fault.
Replace the ESRS unit.
5. The SILENCE button
on the ESRS unit
does not silence
the alarm.
The ESRS SILENCE tactile
switch on the ESRS unit
has failed.
Ensure that the tactile
switch on the ESRS
clicks when pushed in.
The ESRS SILENCE tactile
switch on the ESRS is fully
depressed under the
faceplate
Use a small pointed
object to re-center pin
until it re-seats above
the faceplate.
6. The Unit Override
does not work.
The ESRS did not receive
the signal from the
Display Panel.
Check the CAT-5 cable
and clean the CAT-5
jack.
Replace Display Panel.
Note: If discharge occurs, contact SEA-FIRE Customer Support for
assistance in locating an approved filling location.

Page 10 of 12 123-567 Rev. A
PN: 124-LPS
CYLINDER
SUPERVISORY
SWITCH (SPST)
DISPLAY - HIGH TEMP
PN:131-467
CAT-5
FIGURE 3: EXAMPLE ESRS 131-445 PRE-ENGINEERED WIRING SCHEMATIC
NOTE:
THIS WIRING SCHEMATIC IS A REFERENCE
EXAMPLE ONLY. CUSTOMER SPECIFIC
WIRING SCHEMATIC MAY APPLY PER
CUSTOM CONFIGURATION DIAGRAMS.
NOTE- THE 5A CIRCUIT BREAKER WITH ON/OFF SWITCH ARE TO BE SUPPLIED BY CUSTOMER.
MANUAL AUTOMATIC
FIRE SUPPRESSION SYSTEM
UPON SYSTEM DISCHARGE, SHUT DOWN:
ENGINE
FORCED VENTILATION
ELECTRICAL SYSTEMS
FOR MANUAL OPERATION
REMOVE PIN
PULL HANDLE
F
I
R
E
PN: 136-XXX
SMAC PULL CABLE
5A CIRCUIT
BREAKER
WITH ON/OFF
SWITCH
5A CIRCUIT
BREAKER
WITH ON/OFF
SWITCH
5A CIRCUIT
BREAKER
WITH ON/OFF SWITCH
PN: 131-304 160o HEAT SENSOR
OPTIONAL
EARLY WARNING HEAT SENSOR

Page 11 of 12 123-567 Rev. A
DISPLAY - HIGH TEMP
PN:131-467
CAT-5
FIGURE 4: EXAMPLE ESRS 131-445 ENGINEERED WIRING SCHEMATIC
NOTE- THE 5A CIRCUIT BREAKER WITH ON/OFF SWITCH ARE TO BE SUPPLIED BY CUSTOMER.
5A CIRCUIT
BREAKER
WITH ON/OFF
SWITCH
5A CIRCUIT
BREAKER
WITH ON/OFF
SWITCH
5A CIRCUIT
BREAKER
WITH ON/OFF
SWITCH
PN: 124-LPS
CYLINDER
SUPERVISORY
SWITCH (SPST)
BLACK RED
PN:124-969
OR
PN:124-914
HORN/STROBE
P/N: 131-311
DISCHARGE PRESSURE
SWITCH (DPDT)

NOTE:
THIS WIRING SCHEMATIC IS A REFERENCE
EXAMPLE ONLY. CUSTOMER SPECIFIC
WIRING SCHEMATIC MAY APPLY PER
CUSTOM CONFIGURATION DIAGRAMS.

Page 12 of 12 123-567 Rev. A
OWNERS RECORD
Installation Date ______________________
Installer ________________________
For More Information Call
Manufacturer of Quality Fire, Suppression and Detection Systems
This manual will be revise frequently to keep up-to-date with new changes and
development.
“Sea-Fire Marine, an ISO 9001 registered company, is fully committed to exceeding
our Customer’s expectations.”
Sea-Fire Marine - USA Sea-Fire Europe, LTD
Baltimore, Maryland or Hampshire
www.Sea-Fire.com United Kingdom
Phone: [phone] www.Sea-Fire.co.uk
Fax: [phone]
ONE YEAR LIMITED WARRANTY
We guarantee to the original retail purchaser of the Sea-Fire
Machinery Shutdown Restart System for a period of one (1) year
after retail purchase against defective material and faulty
workmanship. Any Engine Interrupt System found to be defective
during the warranty period will be replaced or repaired free of
charge upon the prepaid return of the
defective system.
This warranty provides specific legal rights and you may have other
rights, which vary from country to country.