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Smoke alarms are powered by battery or by your home's electrical system. If the smoke alarm is powered by battery, it runs on either a disposable 9-volt battery or a non-replaceable 10-year sealed lithium battery. Alarms that receive their power from your home's electrical system (hardwired alarms) usually have a back-up battery that will need to be replaced once or twice a year.
There are two types of sensing technology available. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home.
There are many special features that can help protect you and your home, or make your safety products easier to maintain and operate. Many of these features are not well known by their name, so to learn more about specific features of a model, select it and view its detail page.
The Kidde P4010ACS is an AC/DC powered, photoelectric smoke alarm that contains a 10-year, sealed battery backup and voice messaging system. The voice warning feature accompanies the 85dB tone during an alarm event, and helps reduce confusion with verbal announcements such as “Replace alarm” at end of alarm life, and “Hush mode activated” when a nuisance alarm is silenced.
Kidde P4010 Series Alarms contain 10-year tamper proof batteries that eliminate the need for battery replacement, and ends worry over unauthorized removal. Users are further shielded from late night battery chirps by the unit’s Ambient Light Sensing feature, which establishes a day / night cycle and prevents alarm chirping in dark conditions.
120VAC (60 Hz, 53mA Max)
The smoke alarm should be installed to comply with all local codes having jurisdiction in your area, Article 760 of the National Electric Code, and NFPA 72. Make certain all alarms are wired to a single, continuous (non-switched) power line, which is not protected by a ground fault interrupter. A maximum of 1000 ft. of wire can be used in the interconnect system. Use standard UL listed household wire as required by code.
The smoke alarm model shall be P4010ACS or approved equal and is powered by a 120VAC, 60Hz source along with lithium battery backup. The lithium batteries shall be sealed in the unit to prevent removal and/or tampering. The unit shall incorporate a photoelectric sensor. The temperature operating range shall be between 40°and 100°F (4°C and 38°C) and the humidity operating range shall be up to 95% relative humidity, non-condensing.
The smoke alarm can be installed on any standard single gang electrical box, up to a 4”octagon junction box, following the UL/Manufacturer’s approved placement guidelines.The electrical connection (to the alarm) shall be made with a plug-in connector. The alarm shall incorporate an activation switch that will activate the backup battery when the unit attaches to the mounting bracket.
The P4010ACS shall include a test button that will simulate a fire condition and cause the unit to go into alarm. This sequence tests the unit’s electronics to ensure proper operation. A maximum of 24 Kidde devices can be interconnected in a multiple station arrangement. The interconnect system must not exceed the NFPA (National Fire Protection Association) limit of 18 initiating devices, of which 12 can be smoke alarms.
The unit shall have audible methods for warning of smoke or fire danger: a piezoelectric horn, rated at 85 decibels at 10 feet, and a voice warning. In alarm, the horn will sound in the repetitive manner – three long beeps, a 1.5 second pause, three long beeps, repeating. In between, the unit will announce a voice warning, “Fire!” The red LED ring will flash in conjunction with the alarm sound.
The smoke alarm shall include an End of Unit Life Alert, where ten years after initial power-up the unit shall chirp two times every 30 seconds to indicate the alarm needs to be replaced. The End of Unit Life signal can be silenced for increments of 24 hours up to a maximum of 7 days. The Ambient Light Sensing feature will establish a day/night cycle to prevent End of Unit Life or Low Battery warnings during dark conditions. The unit shall have a deactivation switch to disable it and make it safe for disposal.
The unit shall at a minimum meet the requirements of UL217, NFPA 72, The State of California Fire Marshall, NFPA101 (One and two family dwellings), Federal Housing Authority (FHA), Housing and Urban Development (HUD). The alarm shall be UL Listed and shall include a 10-year manufacturer’s limited warranty.
This alarm uses photoelectric sensing technology. Photoelectric sensing alarms may detect visible fire particles (associated with slow smoldering fires) sooner than ionization alams. Ionization alarms may detect invisible fire particles (associated with fast flaming fires) sooner than photoelectric alarms. Leading authorities recommend that both ionization and photoelectric smoke alarms be installed to help ensure maximum detection of the various types of fires than can occur within the home.