Honeywell Notifier Nfs28 Manual

997-492-000-6, Issue 6
July 201114
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
5 Panel Electronics
The Fire Control Panel is supplied with the following
factory-fitted electronic equipment:
•Main PCB
•PSU PCB
These PCBs do not need to be removed to install
the back box.
5.1 Main PCB
The Main PCB is pre-fitted in the panel and does not
require removal for panel installation.
Multi-mode pushbuttons and status indicators on the
Main PCB are used for all panel...

997-492-000-6, Issue 6July 2011
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
15
Refitting the Main PCB
The procedure for refitting the Main PCB is the reverse
of the removal procedure but note the following points:
When offering the Main PCB to the three locating tabs
(C) make sure that:
i Make the ribbon cable connection at socket connectorSK4 (D) and re-connect the earth lead to the blade
connector (A).
ii The ribbon cable is correctly located within the...

997-492-000-6, Issue 6
July 201116
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
6 Commissioning
6.1 Introduction
It is recommended that the control panel is powered up
and tested before connecting the field devices.
6.2 Preliminary Checks
Before connecting the mains power to the panel, check:
1
The earth lead from the safety earth post is connected
to the earth tag on the Main PCB.
2 That the EOL devices are correctly terminated in the
zone input and sounder...

997-492-000-6, Issue 6July 2011
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
17
6.4 Powering the Panel
Before applying mains power to the control panel
make sure that you carry out the following checks and
procedures:
1 Check that you carried out all the instructions
described in  Section 6.2 Preliminary Checks .
2 Prepare the mains supply wiring for connection as
follows:
i Remove the outer cable sheath to provide sufficient slack, approximately 100mm, in the...

997-492-000-6, Issue 6
July 201118
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
2Connect the batteries using the provided items:
a. Red battery lead (1 off)
b. Black battery lead (1 off)
c. Short battery interlink lead (1 off).
One end of each battery lead is fitted with a connector.
The other end of the red and black battery leads
should be connected to the battery charger
termination block (TB8) located in the bottom, right-
hand corner of the Main PCB.
Note:...

997-492-000-6, Issue 6July 2011
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
19
Recommended Battery Size
The recommended battery sizes are given in the table
below. The table is in two parts: the top part recommends
battery sizes when 0.47μF capacitor EOL devices are
used with 2, 4 or 8 zone panels and with 24hr or 72hr
battery backup. The second part recommends battery
sizes when 4k7 resistor EOL devices are used with 2, 4
or 8 zone panels and with 24hr or 72hr...

997-492-000-6, Issue 6
July 201120
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
6.5 Configuration and Handover
After all external wiring has been connected to the panel
and with no faults existing, the panel can be configured
for the particular system requirements.
After configuration has been completed and after any
faults revealed have been rectified, the system will be
ready for commissioning tests.
The configuration process is only possible with the panel
at...

997-492-000-6, Issue 6July 2011
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
21
470R
(nominal)470R
(nominal)470R
(nominal)470R
(nominal)
++
-
-
MCP MCP
Main PCB Zone
Input TerminationsMainPCBZone
Input TerminationsRefer to Section 6.4.1 for details on standby battery sizes
and maximum number of zones.
Note: This method is not recommended for new
installations.RefertoSection6.4.1fordetailsonstandbybatterysizes
andmaximumnumberofzones.
Capacitor:
Use...

997-492-000-6, Issue 6
July 201122
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
6.8 Sounder Circuits
Two sounder output circuits are provided. The
termination block, TB1, for the sounder circuits is located
at the top left-hand corner of the PSU PCB.
DO NOT CONNECT UNTIL ALL ZONES HAVE BEEN
CONFIGURED AND 

TESTED.
Before the sounder circuits are connected it is
recommended that all detection circuits are checked to
prevent the possibility of spurious alarm...

997-492-000-6, Issue 6July 2011
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
23
6.9 Digital Inputs
Two digital input circuits are provided. Terminal block,
TB5, is provided on the Main PCB for these input circuits.
Each circuit is configurable, at access Level 3, as a
dedicated input function - refer to  Section 7.7 Digital
Inputs  for details.