Fike Quadnet PSU V3 Manuale utente

26-0853 Issue 5

Fire Detection & Alarm System Power Supply Unit V3

Power Supply Unit Installation Manual

(TO BE RETAINED BY THE COMMISSIONING ENGINEER)

Quadnet Power Supply Unit Installation Manual

Fike’s policy is one of continual improvement and the right to change a specification at any time without notice is reserved. Whilst every care

has been taken to ensure that the contents of this document are correct at time of publication, Fike shall be under no liability whatsoever in

respect of such contents.

Due to the complexity and inherent importance of a life risk type system, training on this equipment is essential, and commissioning should

only be carried out by competent persons.

Fike cannot guarantee the operation of any equipment unless all documented instructions are complied with, without variation.

E&OE.

Fike equipment is protected by one or more of the following patent numbers: GB2426367, GB2370670, EP1158472, PT1035528T,

GB2346758, EP0917121, GB2329056, EP0980056, GB2325018, GB2305284, EP1174835, EP0856828, GB2327752, GB2313690

Quadnet Power Supply Unit Installation Manual

Contents

Introduction..........................................................................................................................4

System Design..........................................................................................................4

Equipment Guarantee ..............................................................................................4

Anti Static Handling Guidelines ................................................................................4

Warning.....................................................................................................................4

EMC ..........................................................................................................................4

The Quadnet System...........................................................................................................5

Advantages of Addressable Systems .......................................................................5

Power Supply Unit...............................................................................................................6

The General Assembly .............................................................................................6

Power Supply Disassembly.......................................................................................7

Cabinet Installation....................................................................................................7

Physical Dimensions .................................................................................................8

Power Supply Assembly............................................................................................8

Topology and Cabling ...............................................................................................9

Cable Specification ...................................................................................................9

Mains Supply & Batteries ..........................................................................................10

PSU Termination Schematic.....................................................................................11

PSU Terminals..........................................................................................................12

Address Select Links ................................................................................................15

Example Connection Diagram ..................................................................................15

Fuses ........................................................................................................................16

Commissioning....................................................................................................................17

Installation 1st Stage ................................................................................................17

Power Up ..................................................................................................................17

Good Practice ......................................................................................................................18

Battery Data .............................................................................................................18

Cable Readings.........................................................................................................18

Technical Data .....................................................................................................................19

Power Supply Unit.....................................................................................................19

Further Information .............................................................................................................20

PSU Cable Continuity & Insulation Test Results.......................................................20

Your Notes............................................................................................................................21

Important Points ..................................................................................................................24 – Back Page

Quadnet Power Supply Unit Installation Manual

Introduction

This Manual is intended as a guide to the engineering and commissioning principles of the Quadnet

Addressable Intelligent Fire Alarm and Detection system, and covers the Power Supply Unit only.

Due to the complexity and inherent importance of a system covering a ‘Life Protection Risk’, training on this

equipment is essential, and commissioning should only be carried out by competent and approved persons.

For further details of the availability of commissioning services contact your supplier.

System Design

This document does not cover Fire Alarm system design, and a basic understanding is

assumed.

A knowledge of BS5839: Pt 1: 2002 +A2: 2008 : Fire Detection and Alarm Systems for

Buildings is essential.

It is strongly recommended that a suitably qualified and competent person is consulted in

connection with the Fire Alarm System design and that the entire system is commissioned in

accordance with the current national standards and specifications.

Equipment Guarantee

The equipment carries no warranty unless the system is installed, commissioned and serviced

in accordance with this manual and the relevant standards by a suitably qualified and

competent person or organisation

Anti Static Handling Guidelines

Immediately prior to handling any PCBs or other static sensitive devices, it is essential to

ensure that a personal connection to earth is made with an anti-static wrist-strap or similar

apparatus.

Always handle PCBs by their sides and avoid touching any components. PCBs should also be

stored in a clean dry place, which is free from vibration, dust and excessive heat, and protected

from mechanical damage.

Warning

Do not attempt to install this equipment until you have fully read and understood this

manual.

Failure to do so may result in damage to the equipment and could invalidate the warranty.

Technical support will not be available if the instruction manual has not been read and

understood. Please have this instruction manual available whenever you call for technical

support.

For further technical support please contact your distributor. Do not call the Fike Safety

Technology support department unless your distributor has first given their advice and

attempted to rectify the issue.

EMC

This equipment when installed is subject to the EMC directive 2004/108/EC. It is also subject

to UK Statutory Instrument 2006 No. 3418.

To maintain EMC compliance this system must be installed as defined within this manual. Any

deviation from this renders the installer liable for any EMC problems that may occur either to

the equipment or to any other equipment affected by the installation.

Quadnet Power Supply Unit Installation Manual

The Quadnet System

The Quadnet system is an addressable intelligent detector system, with many advantages over traditional

addressable analogue detector systems. In order to understand the benefits let us look more closely at the

terms Fire Detector and Fire Sensor. These terms are often used interchangeably but actually have quite

different meanings. A fire detector is the device (component as defined in EN54) which automatically

detects a fire. In the majority of addressable fire detection systems, the fire devices are in fact fire sensors

which only transfer data relating to smoke and heat levels to the control panel, and the fire decision is made

by the panel.

Nearly all current addressable systems are Addressable Analogue Detector Systems where the control

panel continually scans the fire sensors, processes the returned data, and makes decisions about fires and

faults.

The Quadnet system is defined as an Addressable Intelligent Detector System, or an Addressable Fire

Detection and Alarm System with Independent Distributed Intelligence. Distributed intelligence

signifies that the signal processing is spread throughout the system, in order that the decisions about fires

and faults are taken within the detector itself. The detector is capable of being remotely programmed for

different modes of detection.

Thus the Quadnet system is indeed an analogue addressable system, but with the processing power

distributed across the entire system. This dramatically reduces the complexity of the control panel and the

data traffic, and improves the efficiency of the system.

The system addressing is carried automatically upon initialisation from the control panel, and does not need

to be programmed manually at each device.

Advantages of Addressable Systems

The nature of a microprocessor control system with individually identified devices means that the precise

location of fires and faults may be indicated, more complex actions may be implemented, system flexibility

is improved and installation and cabling costs are reduced.

In the Quadnet system, very efficient communications mean that very low quiescent power consumption

maximises the standby capacity, high power transfer capabilities allow more sounders to be connected to

the loop, and a very fast response to events is achieved as the control panel does not have to poll every

device for status data.

Quadnet Power Supply Unit Installation Manual

Power Supply Unit

The General Assembly

NOTE: The diagram above shows a V3 PSU. Earlier models differ slightly.

The power supply is normally supplied disassembled to make first fix easier. If the panel is already

assembled it must be disassembled in order to fix the backbox to the wall.

If the power supply needs to be disassembled in order to fix the box to the wall see “Power Supply

Disassembly”.

Quadnet Power Supply Unit Installation Manual

Power Supply Disassembly

Remove the collar / flange assembly complete with door as follows. Loosen the 4 screws in the keyhole

slots (2 per side). Remove the retaining screws (2) one at the top and one at the bottom. Lift off the collar /

flange assembly complete with door and set aside.

The PSU Assembly is mounted on a chassis which is fixed into the box by 1 screw through a keyhole slot at

the top of the chassis. There are two metal retainers at the bottom.

The screw must be loosened then the chassis plate can be lifted up and out of the box.

Cabinet Installation

This back box is compatible with the Quadnet range of Fire Alarm Control

Equipment and is common to the range of control panels, repeater panels and

power supply units.

Surface Mounting

At least four of the five mounting holes should be used to secure the cabinet to a

solid wall using suitable screws of at least 50mm in length. A gap of at least 50mm

should be left between this enclosure and the control panel enclosure (if mounted

adjacent).

Cable Entry

The cable entry locations available will depend on the type of unit that is intended, and it is important to note

which cable entry areas are suitable for each derivative.

Quadnet Power Supply Unit

The two rows of knockouts at the top are suitable.

The single row of knockouts in the rear at the top

is suitable (not the second row).

The main rear face in the top half must be kept

clear for mounting the electronics.

The main rear face and the two sides in the

bottom half, and the bottom edge, must be kept

clear for mounting the batteries.

Technical Data

Dimensions: Width x Height (excluding flange) 415mm x 415mm

Width x Height (including flange) 445mm x 445mm

Depth 75mm

Flush Mount Hole Size Backbox only 420mm x 420mm

Quadnet Power Supply Unit Installation Manual

Physical Dimensions

Power Supply Assembly

This is the reverse of the disassembly process above.

50mm

420mm

FLUSH MOUNT HOLE IN WALL

Quadnet Power Supply Unit Installation Manual

Topology & Cabling

All system wiring should be installed to comply with BS 5839: Pt 1: 2002: Amendment 2: 2008 and BS 7671

(wiring regulations) and any other standards relevant to the area or type of installation. A cable complying

with the BS 5839: Pt 1: 2002 Category 1 (cables required to operate for prolonged periods during fire

conditions) is required. This must be a 2-core 1.5mm2screened fire resistant cable (ie. MICC, FP200,

Firetuff, Firecell, Lifeline or equivalent). Ventcroft No-Burn multicore cable was utilised during the LPCB

approval testing.

If connected to the Quadnet control panel, the Power Supply Unit requires both a data connection and dual

power connections. Thus, one x 2 core 1.5 mm2screened fire resistant cable must be installed between the

PSU and the control panel for data connection, and 2 x 1.5 mm2screened fire resistant cable must be

installed between the PSU and the control panel for 24V DC power connections if each cable is no longer

than 6.3m (use 2.5 mm2for 24V DC power cables up to a maximum of 9.5m).

In order to protect against possible data corruption it is important to ensure the following points are adhered

to:

1. The data and power cables must have the screen/earth connected at the control panel and

at the Power Supply Unit using the terminals provided.

2. Do not use a 4-core cable to save the installation of two 2-core cables. It is essential that

individual 2-core cables are used.

When fitting the mains, power and signal cables to the Power Supply Unit equipment and before attaching

the connectors, slide the ferrite sleeve over the cable so that it butts up against the Power Supply Unit case.

Fit the tywrap around the cable under the ferrite sleeve to lock the ferrite into position on the cable.

Cable Specification

For DC Power and Communications between PSU and Control Panel:

Max Capacitance Core to Screen................................................... 180pF / m

Max Capacitance Core to Core....................................................... 100pF / m

Max Inductance............................................................................... 1.0mH / km

Max Resistance Two Core Screened 1.5mm²................................ 12.1Ω/ km

Fire Proof ........................................................................................ BS5839: Pt1: 2002 Category 1

Example .......................................................................................... Datwyler 8700

Quadnet Power Supply Unit Installation Manual

Mains Supply & Batteries

The Fire Alarm Panel 230V AC supply requires fixed wiring between 0.75 mm2and 2.5 mm2, a 3 amp fused

un-switched spur with local isolation, to be terminated into the fused terminals provided in the power supply

back box. The mains supply should be dedicated to the Fire Alarm Panel and should be clearly labelled

‘FIRE ALARM: DO NOT SWITCH OFF’ at all isolation points.

The standby will vary depending on the system loading. The PSU requires 2 x 12V 17Ah sealed lead acid

batteries. These are to be sited in the power supply back box in the provided enclosure along the bottom

edge. The batteries should be connected in series using the connection leads supplied. We recommend

the use of type Yuasa NP17-12I (FR) or other equivalent approved type.

Do not use larger or smaller capacity batteries on this system, larger batteries will not fully charge in the

time allowed and smaller ones will be overcharged and the service life will be reduced.

Using different capacity or type of batteries could also invalidate any warranty.

Note that batteries are electrically live at all times and great care should be taken to ensure that the

terminals are never presented with a short circuit. Care should be taken at all times, especially during

transit, installation and normal use.

Use caution as there is a risk of explosion if the batteries are replaced by an incorrect type.

Batteries no longer required should be disposed of in a safe and environmentally friendly manner by the

battery manufacturer or a suitable recycling service. They should never be incinerated or placed in normal

rubbish collection facilities. Dispose of used batteries according to the instructions.

Knockouts at top and rear

Field Wiring Connections

2 x 12V 17Ah sealed

lead acid batteries

12V 17AH

BATTERY

12V 17AH

BATTERY

CHARGE

CONTROLLER

SWITCHED

MODE PSU

Indice

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