Aico EI181 Variable 12V to 24V DC Powered Ionisation Smoke Alarm with 9V Battery Back Up
The Aico EI181 is a variable power smoke alarm that is powered by 12V to 24V. The unit has a 9V Alkaline battery back-up which can last up to 4 years when in standby and is capable of powering the alarms for up to 2 years in the absence of mains power.
Features and Benefits
The alarm is triggered when smoke enters the alarm
Alarm is supplied with an Easi-fit base to ensure quick and easy installation.
The Easi-fit connects both mains power and battery as the alarm is fitted
Integral volt-free relays are used which means it can be used to switch into a burglar alarm panel
Green light indicated mains power
Red light flashes every 40 seconds to confirm automatic self tests are being carried out
Red light flashes rapidly when unit is triggered
A short push on the Test/Hush button is used to silence false alarms
A press and hold action on the Test/Hush button performs a self test
When in Test mode the alarm will perform a self test and sound the horn
When the unit is in Hush mode this activates a 10 minute reduced sensitivity period to overcome false alarms.
The Hush mode automatically resets to normal after the 10 minute period
When interconnected the unit will trigger all alarms in the system to trigger
Only the triggered alarm will flash when interconnected into a system
When the battery needs replacing the unit will beep every 40 seconds
Technical Specification
The unit is approved to BS14604:2005
Kitemarked to indicate type testing
The sounder meets the requirements of Grade D, and exceeds Grades E and F, to conform to BS 5839:Pt.6:2004
The unit has a proven dal lionisation chamber sensor with and insect resistant screen
The unit has the following connections for power input options
Terminal marked + for 12 - 30 Volts DC input
Terminal marked - for ground input
Terminal marked IC for interconnecting system
Standby current is 7.5mA(max) at 12 volts and 10mA (max) at 24 volts
Alarm current is 58mA (max) at 12 volts and 60mA (max) at 24 volts
The unit is supplied with Duracell PP3 batteries for continuous operation in the e4vent of a power failure on the system
Battery is monitored for open/short impedance
A low battery warning will beep every 40 seconds when the battery is in need of replacing
The unit has an encased horn giving output of 85dB(A) at 3 metres
The diameter of the piezo disc in the sounder is 35mm and is held in place with silicone mastic to prevent premature horn failure.
Soldered contacts eliminate failures due to corrosion and arcing
This unit is inter connectable with up to 20 Ei181, Ei184 and EI186 smoke and heat alarms
The relay operates on the panel power supply and also on battery back up.
The volt free contacts are rated at 30V DC, 1Amp (normally open/normally closed/common)
Continuous mode or pulse mode (switches for 5 seconds only) options selected by installer
Unit is supplied in 'continuous' mode
Unit is supplied in the 'no resistance' mode
Wiring is 4 core cable (5 core if interconnecting alarms) with max resistance of 20 Ohms
Suitable cable is 0.2mm sq, double insulated, multi-core security cable to BS4737:Section 3.30
Terminals will accept two 1sq mm wires
The Easi-fit mounting base incorporates the electronics and power connections and knockouts are provided to allow for surface and recess mounting
The alarm is supplied with a dust cover to protect it from contamination during installation
The unit is supplied with full instructions for both the installer and the user
Operating temperature is between 0 and 40 degrees centigrade
Humidity range is from 10 - 90 per cent (non condensing)
