Conventional Control Panels
Normal Operation 
The green power LED is on, all other LEDs are off. In the normal mode, the buttons are disabled to prevent operation by unauthorised people. To operate the buttons, the enable key has to be turned clockwise.
Fire Condition
If the panel has been in the fire condition, operation of the silence button causes the sounders to stop sounding and the common fire LED to flash to indicate that the panel has been silenced, the internal buzzer will pulse. If the panel has been showing a fault with the buzzer pulsing, operation of the silence button causes the buzzer to silence.
Reset
Operation of the reset button causes the panel to rest and any fire indicators, (red LEDs), and the detectors. If a fire condition is still present on a call point or a detector, resetting the panel will cause the sounders to resound. The panel should not be reset until the reason for the fire condition has been established. i.e. a red LED on the detector operated, or a broken glass on the call point.
Zone faults
Zones are monitored for open circuit, showing a flashing zone LED, and the LED of either zone 1 or 2. A short circuit is indicated by a constant zone LED together with the LED of zone 1 or zone 2. A blown detector fuse is shown by zone 1 or 2 flashing LED. This is only monitored every 25 seconds. A blown detector fuse does not prevent the panel from showing a zone in fire, but does prevent operation of the 2-wire sounders.
Detector head removal. By using detector bases fitted with schotky diodes, the detectors can be monitored for removal. This will be shown as the detector LED on together with zone 1 and 2 LED for which the detector has been removed. This is only monitored every 25 seconds.
ARW
This indicator is illuminated when the panel is first turned on, and goes out when the panel is rest. This LED should not appear again while the panel is in operation, unless a malfunction has occurred. The indicator shows that the processor has automatically reset to the beginning of its program.
Power Faults
A battery fault is indicated by the yellow power LED flashing. A mains charger failure is shown by a constant yellow power LED.
Common Faults
The common fault LED will come on for any fault or isolation, together with the common fault relay, and pulsing buzzer. The buzzer can be silenced by pressing silence.
Link 1 can be used to set normal pr pre-1988 mode. In the rightmost position the panel is in normal mode. In the leftmost position the panel is set to pre 1988, i.e. a short circuit on the zone causes the fire condition. In this mode, the zonal fuses are not monitored, the zonal sounders will not operate, and head removal is suppressed.
Repeater output
The repeater connections are provided to operate a repeater panel. These are zone 1, and 2, common fire common fault and buzzer outputs, which are active 0 volt. Inputs are also provided for external reset, silence and evacute 0 volt signal for operation.
Connector 6 on the left hand side of the board can be used to drive an external relay if a reset on silence relay is required.
Sounders
The two sounders circuits are monitored for open circuit shown by a flashing sounder LED and short circuit shown by a constant sounder LED. The two sounder circuits reverse polarity in the alarm condition to operate polarised sounders or bells.
The panel will also support the operation of special Fulleon two wire sounders which can be fitted into the detection zones, and are turned on in the alarm condition by pulses from the panel.
A blown sounder fuse on the normal sounder circuits will show as a sounder open circuit. A blown zonal sounder fuse will show as a flashing zone 1 or zone 2 LED.
Setting one man test, zone isolation or sounder isolation
To set the panel for one man test, zone isolation or sounder isolation, the following procedure has to be carried out. First press the mode key, the one man test LED will flash. Pressing the set/rest key will cause the LED to remain on continuously showing the function has been selected. Pressing the set/rest key again will deselect the function, and the LED will flash. Pressing the mode key will move the flashing cursor to zone 1 and the set/rest key can again be used to select the deselect isolation. Pressing the mode key for the fourth time will move the cursor to sounder/isolate which can also be selected/deselected. A final press of the mode key causes the panel to reset and resume normal operation. If the panel is left in the setting mode, the panel automatically resets itself after 25 seconds of no key being pressed.
One Man Test
Having been selected as previously described, theone man test and common fault LEDs will be on warn the operator not to leave the panel in this mode. In the one test mode the panel will ring the bells for a few seconds after a call point detector has been operated, and will then reset automatically. The fire relay will not operate under these conditions.
Zone isolation
Isolation of a zone as previously described will stop a zone from going into fire or showing a fault, to enable maintenance work to be carried out.
Sounder isolation
Set as previously described, will stop the sounders from operating when in the alarm condition.
Technical specification
The panel is fitted with an integral 1 amp power supply set to 27.6v to charge two 1.2AH batteries.
Two sounder circuits are fused at 1 amp.
The zonal sounders are fused at 1 amp.
The auxiliary fire and fault relays are rated at 2 amps.
Boz size: 200mm X 230mm X 75mm with 20mm knockouts to the top and to the rear.
Installation and Commissioning
This section should be read fully before commencing wiring and installation of the fire panel. The FireSense range of the fire panes has been designed to comply with BS 5839 : Part 4 : 1988 Fire detection installations should be designed in accordance with BS 5839 : Part 1 : 1988. The choice of cables used is dependent on the installation and should comply with BS 5839 : Part 1 : 1988.
Cables shouls be installed in accordance with the current edition of the IEE Wiring regulations (Regulations for electrical installations, published by the Institute of electrical engineers) (BS 7671 :1993).
Sounder Wiring
Mineral insulated copper cable or similar fire proof can mechanically resilient cable cable should be used for alarm sounder circuits, as indicated in BS 5839 : Part 1 : 1998. Section Two 17.A minimum of two sounder circuits should be used in each installation to comply with BS 5839 : Part 1 : 1988.
Sounder output circuits should be wired as continuous pairs with no spurs or tees. An end of line device should be fitted to each sounder circuit as shown below.
The cable used is dependent on the installation, as installation, as indicated in BS 5839 : Part : 1988 Section Two 17. An end of line device should be fitted to the end of each zone circuit. Unused zones require and end of line device connecting across the zone input terminals to prevent an open circuit fault from being indicated on the control panel.
When the detector removed facility is required a diode should be fitted in each detector base as detailed on the below diagram taking care to observe the correct polarity. Refer to individual manufacturers data for details on detector terminals and wiring, some manufactuirers allow for an inline device to be fitted in the negative line.
Call points
To comply with BS 5839 : Part 1 : 1988 Resistive call points should be used on the installation to differentiate between a fire condition (a resistor) and a short circuit. Old installations work on a short circuit as a fire condition. If a FireSense panel is to used on an old installation e.g. short circuit call point either resistors are needed in line with the call points (470R or 680R) or alternatively, if it not a requirement to bring the system up to date the panel can be switched to treat a short circuit as a fire condition. Failure to do this will cause the panel to go into short circuit instead of fire, an operation of the call point.
Call points normally come with integral resistors and so no extra resistors are required.
