Honeywell Notifier Nfs28 Manual

							997-492-000-6, Issue 6
July 20114
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
WARNING High Voltage!
Take suitable precau-
tions to avoid electric shock.
EN 54-2 (and ISO
7240-2): Section Ref.
Brief explanation of non-compliance here.
!
EN54
ISO 7240!
EN54
ISO
7240
1.7 Ancillary Functions
The following is a list of ancillary functions that are
provided by the control panel in addition to those required
by EN 54-2/4. These functions are described in the
section of this manual as referenced.
Ancillary Functions Manual
Section Refs.
Site specific Setup options 7
Extend delay timer 7.8
Sounder Volt-free contact options 7.6
Relay drive output option 7.6
1.8 Related Documents
This manual only describes the installation, commissioning
and configuration of the control panel. All user functions
are covered by the EN 54 2-8 Zone Conventional Fire
Control Panel User Manual (ref. 997-493 -00X).
1.9 Warnings and Cautions
Where appropriate, this guide and the remainder of the
manual include advisory warnings and cautions to remind
you to consider safety at all times, especially when
following the procedures described in this manual.
You are alerted to any areas where hazardous voltages
are present, or where there may be a risk of damage to
static-sensitive devices if the recommended procedures
described in this manual are not followed. An example
of a high voltage warning and anti-static caution is
provided to the left of this paragraph.
The caution at left indicates that it is possible to configure
a panel in a way that would make it non-compliant with
the requirements of EN 54 or ISO 7240. This should only
be done under exceptional circumstances and with the
authority of the local fire officer.
The following features are provided by the Power Supply
Unit (PSU) of the NFS 2-8 and FLS 2-8 fire control panels
to comply with EN 54-4 and ISO 7240-4.
Features of the NFS 2-8 & FLS 2-8 Clause
Power Supply Unit (PSU)
Derive power from the mains supply 5.1
Derive power from a standby battery source 5.2
Charge and monitor the standby
battery/batteries 5.3
Detect and signal various PSU faults 5.4 
						

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EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
2 Installation Guide
2.1 How to Use this Guide
This Installation Guide provides you with simple
guidelines to install a fire control panel system, quickly
and safely. The guide does not describe panel
configuration procedures as it is covered by the relevant
section of this manual.
For each stage in the panel installation and
commissioning procedures a brief description is given
of its purpose, complete with detail drawings, flow
diagrams and/or other graphics, wherever possible, to
make the instructions easy to follow.
2.2 Pre-installation Check List
Before installing your control panel or fitting detectors,
you must first ensure that the following criteria have been
met. Failure to do this may not only result in damage to
the equipment, but may also cause problems when
commissioning the equipment or adversely affect its
performance.
2.2.1 Some Panel DO’s and DON’T’s
Before selecting a location for the panel and detectors,
DO make sure that:
a) The ambient temperature is in the range:
+5
°C to 35°C and
b) The relative humidity is between: 5% and 95% (non-condensing)
c. The panel is wall mounted in a position which allows clear visibility of displays and easy access to
operating controls. The height above floor level should
be chosen such that the middle of the panel is just
above normal eye level (approximately 1.5  metres).
d) DO NOT locate the panel where it is exposed to high levels of moisture 
						

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EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
e) DO NOT locate the panel where there are high levelsof vibration or shock
f) DO NOT site the panel where there would be restricted access to the internal equipment and
cabling/wiring connections.
2.3 Transient Protection
This equipment contains transient-protection devices.
Although no system is completely immune from lightning
transients and interference, for these devices to function
correctly, and to reduce susceptibility, this equipment
must be earthed correctly.
As with all solid state devices, this system may operate
erratically or can be damaged if subjected to lightning-
induced transients.
The use of outside aerial wiring is not recommended
due to the increased susceptibility to nearby lightning
strikes. 
						

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EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
2.4 Product Inspection
The 2-8 Zone Fire control panel is simple to install and
commission if the recommended procedures described
in this Installation Guide, and the Installation and
Commissioning sections of this manual, are followed.
Follow all installation instructions described in this
manual. These instructions must be understood and
followed to avoid damage to the control panel and
associated equipment.
2.4.1 Checking Your Panel for Damage
Before attempting to install your panel you should do the
following:
1
After removing the control panel from its packaging,
and before you proceed with installing in its chosen
location, check for any damage that may have been
caused during transit.
Note: In the unlikely event that the panel has been
damaged in transit, you MUST NOT install it but
contact your supplier for their returns procedure.
2.4.2 What to do if Yo u Suspect Your Panel is Damaged
The procedure described below tells you what to do in
the unlikely event that the supplied equipment has been
damaged after leaving the factory. However, if you have
problems regarding the quality of any supplied order
items including the control panel, its ancillaries or this
manual, or items are missing, follow the procedure below.
1If, after removing the panel from its packaging, a visual
inspection reveals that it has been damaged, you
MUST NOT continue with the installation but contact
your supplier for advice on what to do next.
Similarly, if the product is found to be faulty during
installation contact your supplier immediately.
2 To aid your supplier you are requested to note all the
details relevant to your complaint, clearly stating
details of any technical problems, date of receipt,
packaging condition, etc. and forward this to your
supplier.
3 Where the product needs to be returned to your
supplier, you are requested to use the original
packaging wherever possible.
Check for damage
before proceeding with the installation!
1
2 
						

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EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
2.5 Installation Preparation
This section describes making the panel ready for
installation.
2.5.1 Removing the Cover
Remove the front cover as follows:
Use the supplied 4mm hexagonal socket wrench to release
the two recessed, socket-headed screws located in position
‘A’ - the screws are captive and do not need to be removed
from the cover moulding. Once the screws have disengaged
the back box, remove the cover as follows:
i Gently pull the bottom edge of the cover clear of the
back box.
ii Carefully lift the top edge of the cover up and away from the back box to disengage the locating lugs.
iii Store the cover safely until required for re-fitting.
2.5.2 Back Box Fixing
The back box must be fixed to the wall with screws at three
fixing locations (see drawing) following the procedure
described below.
Wall Flatness
To prevent distortion, the back box must be installed on the
wall as flat as possible, i.e. with a maximum flatness
deviation between any two points of 3mm. Where the wall
is out of tolerance, use appropriate packing pieces when
installing the back box to meet the above requirements.
Failure to comply with this requirement may result in
the misalignment and consequent difficulty in fitting
the front cover or malfunction of control pushbuttons.
When a suitable location has been found for installing the
control panel, proceed as described below:
1 Prepare apertures (20mm knockouts) required for
cable access as follows:
With the cover removed position the back box so the
interior is towards you. Using a No. 5, slot-ended
screwdriver, position its end in the recess (A) of the
20mm knockout and incline the screwdriver towards you
at about 15° from the vertical (see illustration at left).
Support the screwdriver as illustrated to minimize
penetration of the back box. While in this position  use
something suitable, such as a mallet, to strike the top of
the screwdriver to achieve a clean break of the knockout.
2 Hold the back box assembly in the required position
against the wall and mark the position of the keyhole (A).
3 Drill and plug the wall to take size 4 to 5mm screws.
4 With the panel supported by the top screw, and
ensuring that it is level, mark the other two screw
positions (B). Drill holes and plug.
5 Screw the panel back box to the wall using all three
fixing holes and 4 to 5mm steel, flat-underside-headed
screws.  DO NOT use countersunk-headed screws .
Use washers with 4mm-sized screws.
A
A
Overall Dimensions of panel in
millimetres:
318(h) x 355.5(w) x 96(d).
(Distance between fixing holes marked
on rear face of back box).
A
BB 
						

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EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
2.6 Optional Equipment
2.6.1 2-Way Relay PCB
An optional 
PCB supporting Fire and Fault condition, volt-
free, status outputs may be fitted.  When fitted, the PCB
is connected to the Main PCB via connector, PL1.
Note:  These relays are only intended to switch SELV.
See  Section 8 Specifications .
The PCB is fitted immediately to the left of the Main PCB.
Full instructions for installation are provided with the 2-
way Relay PCB kit (PN: 020-713).
The artwork provided above the wiring termination blocks
shows the Fire and Fault relay contacts with the relays
in a non-energised state. With the panel in its normal
quiescent state, i.e. with no fire or fault conditions present,
the Fire relay is not energised and the Fault relay is
energised. Terminate external wiring as appropriate.
2.6.2 8-Way Relay PCB
The panel has provision for fitting up to two optional 8-
way Relay PCBs. A 16-way ribbon cable connects SK2
on the 8-way Relay PCB to the PSU PCB. When two 8-
way Relay PCBs are fitted, a short 16-way ribbon cable
is used to link the two PCBs together: connector SK2 on
the second PCB to SK1 on the first PCB.
The Main PCB must be removed to allow the PCB(s) to
be fitted and for the correct termination of the ribbon
cable at the PSU and 8-way Relay PCB and between
the 8-way Relay PCBs, when two PCBs are fitted.
Full installation instructions (PN: 997-512-000-1) are
provided with the 8-way Relay PCB kit (PN: 020-747).
2.6.3 4-Way Sounder PCB
The panel has provision for fitting up to two optional 4-
way Sounder PCBs. A 16-way ribbon cable connects SK2
on the 4-way Sounder PCB to the PSU PCB. When two
4-way Sounder PCBs are fitted, a short 16-way ribbon
cable is used to link the two PCBs together: connector
SK2 on the second PCB to SK1 on the first PCB.
The Main PCB must be removed to allow the PCB(s) to
be fitted and for the correct termination of the ribbon
cable at the PSU and 4-way Sounder PCB and between
the 4-way Sounder PCBs, when two PCBs are fitted.
Full installation instructions (PN: 997-536-000-1) are
provided with the 4-way Sounder PCB kit (PN: 020-772).
PL1
FIRE FAULT
SK2
SK1
SK2
SK1 
						

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EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
3 Cabling
3.1 Cabling Instructions
All wiring should comply with current IEE wiring
regulations (BS7671) or the applicable local wiring
regulations. Note also the requirements of EN 54-14 for
cabling and interconnection of a fire detection and alarm
system.
EMC Requirements:
 To meet the EMC requirements
of the European Directives, it is necessary to ensure
that a screened or metal sheathed cable is used.
Cable conductor size should be a minimum of 0.5mm
2.
Terminals accept one 0.5 to 2.5mm2 stranded or solid
conductor.
Cables should be brought into the back box through the
20mm knockouts provided on the top face. Refer to
Section 2.5.2  for details on preparing the knockouts.
Ensure that all openings in the back box are closed off
before connecting power to the panel.
Mains Supply
The supply to the panel must be provided with a suitable
and readily-accessible, double-pole,  mains-disconnect
device . The mains supply must be suitably fused and
rated according to the specifications.
Always ensure that the mains cables are brought into
the back box separately to the low-voltage wiring (refer
to  Section 6.4  Powering the Panel ). All  low-voltage
cables should have a minimum 300VAC rating.
The termination of earth mains wiring must be done
before the termination of any external cable screens.
Cable Screen Wires
Cables should be screened. Screen wires should be
terminated inside the back box as follows:
a. Screen tails should be of sufficient length to connect to the earth post (A) at the commissioning stage.
Once all screen wires have been terminated at the
earth post (A), use the M4 nut (B), spring washer (C)
and two plain washers (D) either side of the screen
wires to make sure a good earthing bond is created.
b. Use insulation sleeving on the tails between the cable entry position and the earth post. Run the tails close
to the rear wall of the back box.
Note:  In cases where all 8 zones are to be configured
and there is a need to reduce the number of cable
screen tails being routed through the panel, an
alternative method is to fit a suitable earth block
(not provided). The fixing points (E) may be used
to mount the block. Provide a suitable cable
between this block and the earth post. Using
insulation sleeving, terminate all cable screen tails
at the earth block.
WARNING Risk of electric
shock. Before working on
mains connections, ensure mains power supply to the panel is disconnected.
E
Ensure incoming earthis connected to the
post provided and NOT at the PSU PCB. 
						

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EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
3.1.1 Cable Terminations
This section provides guidance on where to bring cables
into the back box for ease of termination.
a. The mains supply should be brought into the control
panel such that the live (L) and neutral (N) cable path
to the mains termination block (MTB) is kept as short
as possible. Refer to  Section 6.4 Powering the
Panel  for the recommended method of terminating
the mains wiring and safety earth. This must be done
before terminating all other panel wiring.
b. All zone and ancillary cable terminations should be brought into the panel at suitable positions and routed
tidily between entry and termination points.
The drawing below shows recommended points of entry
so that the following cabling can meet these requirements.
a. Mains supply cable
b. Zone circuits: 1- 2, 1- 4 or 1- 8
c. Sounder circuits
d. Digital input circuits
e. Auxiliary output circuit (to  meet the requirements of EMC
compatibility, cable length 
must not exceed 30m)
f. 2-way relay PCB outputs (optional)
g. 8-way relay PCB(s) outputs* (optional)
h. 4-way sounder PCB(s) outputs (optional)
* With 8 Zone panels it may be necessary to use multi- core cables for these relay outputs.
3.2 Quality of Cable and of Cable Installation
It is important that good quality cable is used, and that
correct installation techniques are followed. In general,
the following cable installation requirements must be met:
a. All cable sections must be circular to allow effectivecable clamping using the cable glands.
b. The cable must be screened (sheathed) to provide protection against Radio Frequency Interference
(RFI) and the screen must be connected to the
earthing point in the back box (refer to  Section 3.1).
c. The screen must be continuous.
d. Cable recommended for use is MICC with a LSF PVC overcovering, a fire resilient cable to BS7629 or PVC/
SWA/PVC to BS6387.
Recommended Cables:
Cables should not exceed 40R resistance per core and
300nF core-to-core capacitance. This will correspond
to approximately 1km cable length. The following is a
list of recommended cables:
Manufacturer Product  Name Part Number Type1
AEIMICC 2L1.5Enhanced
AEI Firetec 298-052Standard
Draka FiretufPlus FTPLUS2E1.5RD Enhanced
Draka Firetuf FTZ 2E1.5Standard
Pirelli FP Plus FP Plus 2x1.5 Red Enhanced
Pirelli FP200 Gold FP200 Gold  2x1.5 RedStandard
1For a definition of ‘Standard’ and ‘Enhanced’
cable requirements and their different
applications, refer to BS  5839-1, Section 26.
Enhanced cable is typically required for spur
sounder outputs while standard cables may
be adequate for other fire-related I/O,
provided there is diverse cable routing. 
						

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EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
3.3 EMC Considerations
Following the above instructions and by using suitable
screened cables EMC problems will be avoided.
In particularly difficult EMC environments, or where non-
preferred cabling is used, it is possible to fit ferrite sleeves
to cables entering the panel, in particular the power supply
input, sounder and auxiliary output cables.
The ferrite sleeves (A) should be fitted over all the
conductor(s) and as close as possible to the entry point
of the cable. If required, use a cable tie (B)  - not supplied
- to hold the ferrite in position.
If additional ferrites are required these can be purchased
from your supplier (quote part no. 538-143).
3.4 Cables for Sounder Circuits
When designing the sounder circuits, check that you are
using an adequate cable diameter, considering the cable
length, to ensure sounders operate within specification.
Example:
Sounder circuit output: 20.0V (min); 0.5A (max)
Sounder device spec.: 15Vdc (min); 20mA (depends
on tone used)
Cable type spec.: Pirelli FP200 Gold, 1.5mm
2
core resistance:12.1R/km (per
core at 20°C).
Maximum number of sounders per sounder output circuit: = 0.5A / 0.020A = 25
Assuming worst case loading with all sounders at the
end of the cable:
Maximum cable resistance to ensure 15V: = (20-15) / 0.5 = 10R
Maximum cable length that will ensure 15V minimum: = 10 / (12.1+ 12.1) = 0.413km
If the sounders are more evenly distributed along the
length of the cable, then calculations will show that longer
cable lengths are permissable. After installation, the
following tests will confirm that your installation is
functional:
a. Activate the sounders and measure the voltage drop along the cable:
V
drop = Panel Terminal Voltage - End-of-line Voltage
b. Subtract this from the mimimum terminal voltage when on battery back up to give the minimum end-
of-line voltage (V
eolmin):
V
eolmin = 20 - Vdrop
The voltage must exceed the minimum specification of
the sounders, i.e. 15V for the Notifier NS14.
A
B 
						

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EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
4 Field Devices
The Fire Control Panel is capable of working with various
manucturer’s field devices (for compatible field devices
refer to 
Section 1 Introduction ).
Each of these devices is supplied with an instruction leaflet
showing the correct interconnections for various applications.
Before connecting the panel or devices, the wiring should
be tested for insulation and continuity. Once any
components are connected, do not use a high-voltage
tester, such as a Megger, on the circuitry. Low-voltage
multimeters may be used.
CAUTION  - DO NOT use a Megger on zone wiring with
detector heads removed (or fitted) as this will damage
the Schottky diodes fitted to the bases and/or detectors.
Some manufacturers fit a spring in the detector base
which can be used to manually short-circuit the diode
for wiring testing prior to fitting detectors. Where a spring
is not provided, use a link
1 to short out the diode. Refer
to the manuafacturer’s instructions provided.
1DO NOT forget to remove these links at the
completion of wiring testing .
4.1 End-of-Line Devices
The panel is designed to work with the following zone
circuit end-of-line (EOL) devices:
•A 0.47μF capacitor, or
•A 4k7 resistor*
* This EOL device is not recommended for new
installations where the latest field devices are to be used.
The 4k7 resistor should only be used where the control
panel is being installed as a fire control panel replacement
and the existing field devices are to be retained.
Using the 0.47 μF capacitor will reduce the size of the
standby batteries. Refer to  Section 6.4.1 Batteries for
more information on recommended battery sizes. Where
zones are to use a mix of detectors and MCPs a 0.47 μF
capacitor EOL device must be used.
Retrofit Installations
The 4k7 resistor EOL devices may be retained on existing
installations. However, existing Active End-of-Line (AEOL)
devices must be replaced with a 0.47 μF capacitor  or the
additional kit  (PN: 020-417) must be fitted (refer to
Section 6.3 External Wiring for EOL device compatibility
issues).
Caution:  To avoid inadvertant activation of the sounders
the panel must be re-configured to work with resistor
EOL devices - Refer to Section 7.5.6 EOL Device Type.
CAUTION
DO NOT use a Megger on zone wiring with diodes in circuit.
CAUTION
Replace AEOLs on existing
installations with
 a 0.47μ F
capacitor or use Additional kit (PN: 020-417).
CAUTION
AEOL must be configuredor the panel may reportan alarm at power up.