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Ei Professional Smoke Alarms and Smoke Detectors

Residential Fire Safety UK Ireland

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Low Voltage Smoke and Heat Alarms

Ei181 - Ionisation Smoke Alarm

Ei181

Ionisation Smoke Alarm

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Applications

This comprehensive range of Smoke and Heat alarms is designed to operate with suitable 8-30volt control panels and to provide a loud local alarm. Relay contacts (normally open and closed supplied) are available for triggering the panel itself and its associated ancillary products, such as extra loud sirens, magnetic door holders, etc. Battery back-up ensures that the units are always powered, even during a power failure. Additionally, the alarms can be interconnected so that when one senses fire, all the units located throughout the premises sound.

Main Features

Dual ionisation chamber – quick response to fast flaming fires

Power supply voltage 10.5 – 30VDC

Alkaline Battery backup

Low battery warning

Built in sounder to give a sound output of minimum 85dB(A) at 3m

Interconnectable with up to 20 smoke/heat alarms

Relay operates in continuous or pulse mode

Relay contacts rated at 30VDC/1 AMP

Manual Test button to test detector circuitry, sounder, relay and activate all interconnected alarms

Hush button to silence nuisance alarms

Green LED power indicator to confirm panel power supply

Circular Easi-Fit mounting base for quick installation

Fully tested and approved

5 Year guarantee (limited)

Installation

For full Installation and Siting Instructions please refer to the Use and Care Manual

Ideally install in the centre of ceiling at least 300mm(1ft) from light fittings. Keep ionisation alarms away from kitchens to prevent nuisance alarms. Interconnect all alarms

Remove unit from mounting plate by releasing catch

Check battery is connected to snap. Battery will not power the unit until it is snapped on to the mounting plate

Ensure the panel is correctly connected to all terminals otherwise the units will not operate correctly. Check green panel power light is lit on mounting plate

Do not fit actual alarm until all building work is completed to avoid contamination. After checking operation, cover smoke alarm with dust cover until required for use

Trouble Shooting

Frequent nuisance Alarms occur:

Close kitchen/bathroom door when in us

Ensure that the alarm is sited at least 6m away from sources of fumes

Contamination from insects, paint or paint fumes may have occured. Clean the alarm

If the problem persists, resiting of the unit should be considered. Alternatively, replace the unit with an Optical unit(Ei186/185), assuming that the problem is with an Ionisation type alarm(Ei181/180)

Alarm sounds for no apparent reason:

Identify the alarm source. On interconnected units, the red light on the cover will flash rapidly only on the unit which is the source of the alarm

Check for fumes, steam etc. from the kitchen or bathroom. Paint and other fumes can cause nuisance alarms

Press the test/hush button to silence the Smoke/Heat Alarm for 10 minutes

If the alarm does not stop, remove the unit.(Only remove alarm with red light flashing, the others are probably satisfactory)

Low battery & other beeps:

If the battery is correctly connected and the unit has beeped for over 20 minutes the battery is probably depleted. Obtain a new battery, remove the alarm and replace the depleted battery

If the panel is providing power and replacing battery or cleaning unit has not stopped beeps, a fault may exist. Replace the unit

The Ionisation/Heat(Ei181/184) units give two beeps 10 minutes after the test/hush button is pressed

If the Optical unit (Ei186) beeps without the red light flashing at the same time, the chamber is defective. Clean the chamber

Interconnected Alarms do not all sound and the relay does not switch:

Hold test button for 10 seconds after first alarm has sounded to ensure signal is transmitted to all units. Relay should switch

Check that the green power light on the mounting plate is on

Check panel and wiring

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