Green –

Normal operation, mains power on

Green – one minute brief pulse

Normal operation, no mains power

Red –

• Fast Flash
• Slow Flash

Smoke activation or Test Button pressed.

Continues fast flashing until hushed (slow flashing) and then reset (green) System ‘hushed’. Hush effective for 3 minutes

Smoke Detectors

From early December 2023 there is a new Smoke Detector.

Due to the manufacturer discontinuing the earlier smoke detector this new model is now being supplied.

This smoke detector is functionally the same but has a different connection method.  A smaller wiring lead replaces the earlier green screw terminal block.  The supplied wiring lead must be connected to the installed wiring using crimp joint caps.  This is the recommended method for best reliability and service life.  There are two wiring arrangements, one for a mid-line smoke detector and one for the End-Of-Line smoke detector.

Wiring Diagram

Using 4-core security cable, 0.5mm (0.44 is common).  Conductors are black, red, white and blue.

White cores are shown as green – easier than trying to make white show on a white background.  Other colors are as shown.

The crimp junctions caps are closed end crimp caps.  Twist wires and fold if necessary before crimping.  An indenting crimp tool is recommended for security – so they don’t fall off.

Crimp junctions caps may be supplied with smoke detectors if available.  The installer may be required to supply crimp joints.

Mid-Line Smoke Detector

The detector trigger circuit, usually the blue core of the installed wiring to the Fire Denyer Controller passes through the smoke detector relay and on to the next smoke detector in the circuit.

The orange wire from the smoke detector allows the Fire Denyer Controller to trigger the alarm withing  the smoke detector.  This is an output from the Controller, usually on the white core of the installed wiring.  The white and yellow wires from the smoke detector are the relay output signalling a smoke detection back to the Fire Denyer Controller, usually on the blue core of the installed wiring.

End-Of-Line Smoke Detector

Very similar to the mid-line wiring except that the alarm circuit of the last detector connects to the common power supply black core of the installed wiring.

Remember to remove the jumper on the back of the smoke detector on this last smoke detector on the circuit.

The detector trigger circuit, usually the blue wire, to the Fire Denyer Controller passes through the smoke detector relay and connects to the common power supply line, the black wire.

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Original – older model Smoke Detector – for reference only

The 12V smoke detectors (smoke alarms) supplied are installed in the areas to be protected.  The smoke alarms are wired back to The Fire Denyer Controller in a daisy-chain arrangement using 4-core 0.5mm security cable.  A 4.7k End-of-Line Resistor is installed at the last smoke alarm only.  See the wiring diagram.

The white-core links the smoke alarm alarms and allows the Fire Denyer Controller to trigger the audible alarms in all smoke alarm.

The blue-core is the smoke alarm output trigger circuit back to the Fire Denyer Controller.  The image shows the last detector in the circuit with a wire loop installed.  NOTE:  the jumper has not been removed – a trap for young players.

The use of different smoke detectors is not recommended.  The use of 4-core 0.5mm security cable is recommended as it is readily available, reasonably priced, robust and generally has a mains rated sheath – Note that the cores are not mains rated.

Contactor

The power supply to protected circuits is interrupted by a contactor at the switchboard.  Range, hob and kitchen power circuits are primarily protected.  Clothes dryer, power and special function circuits can also be switched.  Additional contactors, to cover more circuits, may be connected if required. The contactor is connected to the Fire Denyer Controller using TPS mains cable as shown in the wiring diagram.

Flashing Alerters

Flashing Alerters are wired back to The Fire Denyer Controller in a daisy-chain using 4-core 0.5mm security cable.  Wiring is shown in the wiring diagram – some more detail in Technical Specifications.

This image shows the blue-core which triggers the red flashing from the Fire Denyer Controller, and the white-core used to loop the door-bell button to the other Flashing Alerters on the circuit.  The white wire is not connected at the Fire Denyer Controller.

The bed-shaker is the twin black wire.  If installed a battery must be plugged into the Flashing Alerter.

Waking Vibrator or Bed Shaker

The Waking Vibrator is wired from a Flashing Alerter.

Wiring can be twin Tru-rip 0.5mm cable or the same 4-core security cable.

The Flashing Alerter driving the Bed Shaker must have a back-up battery connected. The back-up battery pack is installed at the Flashing Alerter to ensure enough current is available to reliably operate the Bed Shaker.

Door Bell

The door bell switch is wired from any Flashing Alerter using twin Trurip 0.5mm cable. If a sounder is fitted for the door ‘bell’, it is powered from a Flashing Alerter.

Auxiliary Relay – for remote monitoring

A small (low current) relay can be connected as shown in the image to provide a clean-contact output for connection to monitoring or another alarm system.

The relay -ve is connected to -ve (terminal 5 from the left) and the relay +ve to the output (terminal 6 from the left).

When alarm activated, the controller switches +ve (nominal 12V) to the relay.

Note:  the output (terminal 6 from the left) also connects to the smoke detector interconnect wire, which triggers the smoke alarms on test or activation.

The relay shown is a low current 12V relay providing a SPDT changeover contact.  This relay includes a LED indication and draws approximately 15mA when activated.

Triggering The FD Controller From Another System

It is important to electrically isolate the two systems using a relay or optically coupled interconnect (optocoupler).  The isolation voltage must be at least “mains rated” – 230VAC here in New Zealand.

The best option is to have the other system mimic a smoke alarm activation to the Fire Denyer.  The other system opens a relay contact that appears to the Fire Denyer Controller to be a smoke alarm activation.

If there are no smoke alarms installed you will need a 4.7K eol (end of line) resistor in series with the input on the Fire Denyer Controller.

Installation Check List

After installation is complete, an examination of the system as a whole should be undertaken.  The tests and checks are laid out in the Installation Check List on page 4 of the User Manual & Installation Guide (see web page ‘User Manual). The installer should initial the Check List.

1. Check mains and load wiring – screw terminals
2. Check load fuse on Fire Denyer – not blown – properly seated
3. Test contactor