B16132-R0-261ENRC-UC-ENG 7/11/07 11:52 AM Page 21

checking circuit has detected a fault. Press and hold the Test/Hush button. If the amber light flashes without the horn sounding, the sensor is faulty. On the Ei261DENRC the display will show SF indicating Sensor Faulty.

4.If the Alarm fails to operate when the Test/Hush button is pressed, switch off the mains supply at the distribution fuse board and remove unit from mounting plate for 3 minutes. Put unit back on mounting plate. Reconnect the mains and test again. (This procedure resets the microprocessor in the unit).

5.If the unit beeps every 40 seconds (without a light flash) it means the battery is depleted. (On the Ei261DENRC with depleted cells, the display will show CP to remind you to Connect mains Power). Connect mains power (ensure green light is on) to allow cells to charge.

6.Once a year check the rechargeable battery by switching off the mains supply and pressing the Test /Hush button for 10 seconds. The horn should sound loudly. Reconnect the mains supply.

If the CO Alarm fails any of the above tests it must be replaced immediately (see 9 “GETTING YOUR CO ALARM SERVICED” on page 27).

TESTING WITH CARBON MONOXIDE

The unit checks for CO every 4 seconds and as soon as it detects CO, it flashes the red light (as per Table B on page 8) to confirm that is detecting CO gas.

Alternatively:

Pressing the Test/Hush button causes the unit to check for CO - this is the Fast COTest Mode.This eliminates the long wait normally required (e.g. up to 90 minutes at 55ppm CO and up to 3 minutes at 330ppm CO).

The unit can be tested with CO by using one of the kits that comes with CO either in a glass phial or aerosol can. Follow the instructions on the kit but be sure to press the Test/Hush button to speed up the CO sampling directly after you expose the unit to the CO. It is best if possible to inject the CO gas into the gas entry holes (see Figure 1). When it senses the CO it will give 3 beeps and the red light will flash as per Table B. It then automatically resets to normal mode. (If unit fails to respond, press the Test/Hush button again as gas can take some seconds to enter sensor).

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Aico Ei261ENRC, Ei261DENRC manual Testing with Carbon Monoxide
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Ei261ENRC, Ei261DENRC specifications

The Aico Ei261DENRC and Ei261ENRC are advanced smoke alarms designed specifically to enhance home safety while providing numerous innovative features. Both models incorporate cutting-edge technologies, ensuring maximum effectiveness and reliability in detecting smoke and fire.

The Ei261DENRC is the versatile model that includes a built-in radio interlink feature. This means that when one alarm detects smoke or an increase in temperature, all interconnected units activate simultaneously. As a result, occupants throughout the home are alerted, regardless of their location. This interconnected technology is crucial for large homes or those with multiple levels, as it significantly increases the likelihood that residents will hear the alarm, especially if they are asleep.

In contrast, the Ei261ENRC model does not have the interlink functionality but still boasts a range of important features. Both models utilize a unique high-performance optical sensing technology, which helps in accurately detecting slow-burning fires, commonly associated with smoldering materials. This feature minimizes false alarms, providing peace of mind for homeowners who are often concerned about nuisance activations.

Another standout characteristic of the Ei261DENRC and Ei261ENRC is their long-lasting battery life. Equipped with a lithium battery that can last up to 10 years, users can enjoy the convenience of reduced maintenance. The battery is designed to power the alarm throughout its lifespan, meaning there won’t be any need for frequent replacements.

Moreover, both alarms come with a unique ‘Smart Silence’ feature, allowing homeowners to temporarily silence the alarm with the press of a button during cooking or when dealing with minor smoke occurrences that do not pose a danger. This intelligent feature helps in preventing unnecessary distress caused by false alarms.

Furthermore, these models are designed with a user-friendly installation process in mind, with clear guidelines provided for mounting and setup. Both the Ei261DENRC and Ei261ENRC are compliant with the latest safety standards, ensuring optimal performance and reliability.

Overall, the Aico Ei261DENRC and Ei261ENRC smoke alarms represent an essential investment for any household prioritizing safety and reliability. Their integration of innovative technologies and user-friendly features make them a must-have for modern home protection.
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