Fike TWINFLEX SRM 100-0010 Manuel utilisateur

INSTALLATION AND MAINTENANCE INSTRUCTIONS

100-0010 Twinflex SRM Module

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TWINFLEX®SRM

Solenoid Releasing Module

100-0010

(Suitable for TWINFLEX®SRP control panels from V01.000)

Solenoid Releasing Module

Engineering and Commissioning

Manual

(TO BE RETAINED BY THE COMMISSIONING ENGINEER)

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Contents

General Description......................................................................................................3

Before Installation.........................................................................................................4

Positioning......................................................................................................................................4

Device Installation / Mounting ......................................................................................................4

Connections ..................................................................................................................6

Module Layout................................................................................................................................6

Zone Connections (J1)........................................................................................................7

Solenoid Connections (J2)..................................................................................................8

External Power for Solenoid (J3) ........................................................................................9

Input Connections (J4, J5, J6)..........................................................................................10

Discharge pressure circuit (J4) .........................................................................................11

Bottle pressure switch circuit (J5) .....................................................................................11

Solenoid Missing circuit (J6) .............................................................................................11

Acceptance Testing ....................................................................................................12

Hardware Connections ...............................................................................................13

Inspections & Testing.................................................................................................13

DIL Switch SW2 Settings............................................................................................14

LED Table.....................................................................................................................15

Operation.....................................................................................................................16

Technical Data.............................................................................................................17

Technical Support.......................................................................................................18

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General Description

The SRM (Solenoid Releasing Module) is a module that controls the

operation of the Solenoid valve(s) in a Suppression system. The typical

applications where the SRM can be implemented for are –Pre-action

sprinkler, Deluge, CO2, Water mist and Foam. The SRM can be used to

monitor a Discharge Pressure switch to provide feedback to the Control

Panel that the Releasing agent has been dumped into the protected space.

The SRM can also be used to monitor the Solenoid and container for any

fault conditions like low bottle pressure, wire connections, faulty actuator

coil, tamper valve etc.

The SRM is connected to the Twinflex SRP (Single Releasing Panel) via a

dedicated zone circuit.

The zone circuit is configured on the SRP as –Release SRM. A maximum of

2 SRMs can be connected on a Zone circuit. The communication between

the SRP and SRM(s) is established via the Twinflex signaling protocol.

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Before Installation

The Twinflex SRM must be installed in compliance with the SRP installation manual. The installation

must also meet the requirements of any local authority and BS7273 Pt1 : 2006.

Positioning

The module should be mounted securely and care should be taken to ensure the device is accessible for

future maintenance.

Device Installation / Mounting

All wiring must be installed in compliance with the recommendations laid out by BS7273 Pt1 : 2006

as well as any special recommendations documented in the control panel installation manual. The

cabling used should be of a 2-core 1.5mm2screened, fire resistant type (e.g. MICC or FP200 equivalent),

and is to be wired in the form of a screened 2-core radial circuit (with no spurs) from the control panel,

terminating at the last (“End of Line”) device. Note that ALL connections, including inputs, should be

made via screened FP cable.

Fix the back box in a suitable position using the screw holes provided on the back, remembering to allow

enough space for the correct termination of the appropriate fire resistant cable. See technical data on

page 15 for enclosure dimensions.

This equipment is only IP30 rated so must be mounted outside the area being protected.

There are six 20mm cable entry points provided on the top and one on each side of the enclosure.

These are not knockouts and should be removed either by running a sharp knife around their outer

groove or drilling out the cable entry points.

Site safety procedures should always be observed when using a knife to remove the cable entry points.

If cable entry points are drilled out the PCB should be removed from the enclosure before drilling

(see Figure 1).

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Figure 1 –The SRM Layout

Stuffing glands should be used on all cables to prevent stress being applied to the PCB mounted

terminals.

Care should be taken when terminating devices to ensure all cables are correctly sleeved and

connections are secure. Improper connections will prevent a system from responding correctly in the

event of a fire.

To prevent an inadvertent extinguishant discharge, the solenoid valve should not be connected to the

container while wiring the SRM circuits and setting up the DIL switches SW1 and SW2. The solenoid

should be connected to the container after all other installation has been completed and verified.

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Connections

In order to carry out high voltage testing and resistance measurements, temporarily connect the

incoming and outgoing zone cables to each other using a 3-way connector block. Once all testing has

been carried out on the cabling, and ‘continuity & integrity’ has been proven, the SRM may be

connected and assembled.

Please remember that all high voltage testing must be carried out before the installation of the SRM

otherwise the electronics will be damaged.

Remember that the device at the end of the line must have its EOL signal activated using the relevant

EOL switch (Refer to DIL switch settings table on page 12). Do not use a resistor or capacitor (or

another manufacturer’s End of Line device) as the end of line, as this may prevent correct operation of

the zone.

Module Layout

The following figure shows the SRM layout. Terminals J1 thru J6 are used for all the field wiring

connections. DIL switch SW1 is used to select between 1x24V or 2x12V solenoid(s) and

DIL switch SW2 is used to configure the SRM (Refer to DIL switch SW2 settings table on page 12).

Figure 2 –SRM Board Layout

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Zone Connections (J1)

Figure 3 shows how to make the zone positive, zone negative and screen connections between the SRP

panel and the SRM(s).

Figure 3 –Zone Connections

Please note that the “SCREEN” terminals on the SRM should only be connected to the zone cable screen

and NOT to the building earth or the back box earth terminal. The cable screen is connected to earth at

the panel end only, via the zone “SCRN” terminal. It is important to maintain the screen continuity in

order to protect against data corruption from interference.

Fault Monitoring –Zone connections are power limited and supervised. Open and Short faults cause a

loss of communication between the SRP panel and the SRMs. They are detected and annunciated by the

SRP panel.

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Solenoid Connections (J2)

Solenoid connections are power limited and supervised. The Solenoid connection (12 or 24 volt)

requires an EOL circuit supervision assembly (Part# 17-0144), provided by Fike, to be installed between

the SRM and the solenoid coil. The assembly provides a means to monitor the solenoid wiring for open

and short faults.

A single 24V solenoid must be connected as shown in Figure 4. DIL switch SW1 must be in ON position

and the solenoid needs to be connected between terminals 1 and 4 at the Solenoid Valve terminal block.

The maximum cable length between the Solenoid and the SRM must not exceed 3 meters.

Figure 4 –24 Volt Solenoid Connections

Two 12 V solenoids must be connected as shown in Figure 5.

DIL switch SW1 must be in OFF position. Solenoid #1 needs to be connected between terminals 1 and 2

and Solenoid #2 needs to be connected between terminals 3 and 4 at the Solenoid Valve terminal block

on the SRM. The maximum cable length between the solenoid and the SRM must not exceed 3 meters.

Figure 5 –12 Volt Solenoid Connections

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External Power for Solenoid (J3)

A 24V DC 2A External Battery Backed Up power supply is required to power the solenoid to dump the

Releasing agent. The 24V DC power can be supplied by the SRP panel AUX PWR 1 & AUX PWR 2

terminals.

Note: If the SRP Panel AUX PWR is used, each AUX PWR output can supply up to a maximum of 1A

which must not be exceeded.

If a separate external power supply is used it must be listed for use with Fire Alarm systems. It must be

connected to +24V and 0V terminals on J3.

Due to 24V DC input and solenoid isolation from the host control panel the connected power supply

must have the ability to indicate a ground fault on the 24V DC and also provide an on-board fault relay

that must be connected to a Monitored Input on the SRP to signal the fault.

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Input Connections (J4, J5, J6)

Input connections on Terminals J4, J5 and J6 are all contact closure inputs. The inputs can be individually

configured (via DIL switch SW2) to be normally open or normally closed. Figures 6 and 7 show how to

make input connections. All input connections are power limited and supervised.

The maximum cable length between the input device and the SRM must not exceed 3 metres.

Note: The triggering resistor used can be a 470Ωresistor (shown) or a 680Ω resistor.

Figure 6 –Normally Open Input Connection

Figure 7 –Normally Closed Input Connection

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