System Sensor MHR MHW Mini-horn – Inability to Silence

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Technical Bulletin 3 24 15 defined as 4 2014 10 October 1 1st week of the month defined as 5 2015 03 March 3 3rd week of the month of issue SpectrAlert Advance Mini horn Inability to Silence of urgency Low Numbers MHR MHW date range October 1 2014 4101 to March 17 2015 5033 Sensor has identified an issue with the Mini horn models MHR and MHW when the silence is used Products manufactured within the date codes specified above may not silence when silence feature is activated on the Fire Alarm Control Panel Date codes outside of this range are affected issue does not affect product performance for sounding and notification System Sensor implemented a change to correct this issue on date codes 5034 and beyond commissioning annual inspection and testing of each Mini horn must be conducted in the in which it was designed to operate as described in NFPA 72 and local AHJ requirements that have been installed tested and are not exhibiting this issue need not be replaced If are experiencing the condition described System Sensor will honor its warranty return policy and recommending that products exhibiting this issue within the date codes specified above be replaced returned through normal channels apologize for any inconvenience this situation may have caused and will continue to work to this issue as efficiently and quickly as possible Should you have any questions or additional please contact our Customer Service Department at the number below code label label digit Ohio Avenue St Charles IL 60174 Phone 800 736 7672 Fax 630 377 6583 www systemsensor com

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