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SECTION 4.19, 4.20

You are at: ABOUT US > FIRE DETECTION > TWO WIRE TWINFLEX DEVICES

Two Wire Twinflex Devices

 

Twinflex manual call point
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Enhanced 3 year warranty applicable when commissioned by Fitzgerald Service.
 

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Twinflex manual
call point

With re-settable element, LED, press out knockouts and plug in assembly for ease of installation.

Available with a built in sounder giving 4 sound patterns, 2 volumes, 85 dB(A), up to 32 per zone max.

F850622

Surface mounting call point. (DFD231)

F850848

Call point & sounder. (DFD 242)

 

Twinflex manual call point diagram

Twinflex Sounder
Twinflex Sounder - red Twinflex Sounder - white

Up to 6 Hatari sounders per zone can be fitted. 2-tone sound, volume potentiometer, 103 dB(A), available in red or white, includes anti-tamper locking clips.

F850636 (White DF240W)

F850638 (Red DF240)

Twinflex output module

Controlled from 2-core zone cables, gives a single changeover relay output to 30vdc 0.5A, a normally closed fault loop for monitoring.

F850890 (DFOM241)

Twinflex input module

Controlled from 2-core zone cable, provides fire input to a zone, requires a normally open contact closing for fire, in pcb format with fly-leads for mounting within slave panels etc.

If fault monitoring required then also use output module for a fault loop.

Specify whether to indicate 'Breakglass' or 'Detector' alarm.

F850889 (DFIM241)

Twinflex repeater panel

Twinflex repeater panel

8 or 16 zones, switched repeater, polycarbonate housing.

Requires 2 cables for power (24v aux from panel), 4 cables for controls, 1 cable for each zone to be indicated.

F850968 8 zone (DFZR208)

F850969 16 zone (DFZR216)

Multipoint Conventional Detector

 

Multipoint detector

 7 different modes of detection
in one device

Specifiers and installers who choose the Multipoint detector do so secure in the knowledge that the fire detection performance of the detector can be matched to the environment in which it is installed - at any time during the lifetime of the installation.

The mode of detection required can be simply changed by configuring a DIL switch in the detector electronics module.

All modes are compliant with European detector type specifications, and are suitable for use in installations compliant with BS5839 Part 1:1988.

• Conventional detector

• 3 smoke detection modes

• 3 heat detection modes - 2 fixed, 1 rate-of-rise

• Combination standard heat or smoke mode

• Select modes at installation - and change them at any time

• Available with or without a full specification 92 dBA built-in sounder

• Continuous self calibration

• Disposable optical chamber - no need for cleaning, can be economically replaced

• Two high performance optical smoke & heat sensors

• Compact design with fully encapsulated electronics

• Easy to install

F850618
Without sounder

F850613
Complete with sounder

Modes of detection
Smoke 1 Used where ionisation detectors are normally fitted, especially when there are high ceilings or a risk of free burning fires.
Smoke 2 Used when optical detectors are normally fitted when there is a risk of a smouldering fire and for escape routes.
Smoke 3 Used when optical detectors are normally used in positions exposed to brief concentrations of water vapour or smoke, e.g. from a bathroom, kettle etc.
Heat 1 Used where a standard rate-of-rise detector would normally be used.
Heat 2 Used where a standard fixed temperature heat detector would normally be fitted, suitable for commercial kitchens etc.
Heat 3 Used where a high fixed temperature heat detector would normally be fitted, suitable for boiler rooms etc.
Combined Smoke 2 & Heat 2 A combination of Smoke 2 & Heat 2 modes will trigger with either a smoke or heat source, e.g. bedsit or hotel bedroom.
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