| 2022-08-16 12:12:32 | THESE PROVISO COMMENTS WILL BE VERIFIED AND CONFIRMED |
| | AT THE TIME OF FIRE INSPECTION. FAILURE TO FOLLOW THESE |
| | PROVISO COMMENTS WILL RESULT IN A FAILED FIRE |
| | INSPECTION. |
| | |
| | 1) THERE ARE INDICATIONS THAT A DUCT DETECTOR WILL |
| | CAUSE A FULL FIRE ALARM ACTIVATION. NFPA PROVIDES CODE |
| | REFERENCES FOR SUPERVISORY SIGNAL ACTIVATION. |
| | |
| | PER NFPA 90A |
| | |
| | 6.4 SMOKE DETECTION FOR AUTOMATIC CONTROL |
| | |
| | 6.4.2 LOCATION |
| | |
| | 6.4.2.1 SMOKE DETECTORS LISTED FOR USE IN AIR |
| | DISTRIBUTION SYSTEMS SHALL BE LOCATED AS FOLLOWS: |
| | |
| | (1) DOWNSTREAM OF THE AIR FILTERS AND AHEAD OF ANY |
| | BRANCH CONNECTIONS IN AIR SUPPLY SYSTEMS HAVING A |
| | CAPACITY OF GREATER THAT 944 L/SEC(2000FT3/MIN.) |
| | (2) AT EACH STORY PRIOR TO THE CONNECTION TO A COMMON |
| | RETURN AND PRIOR TO ANY RECIRCULATION OF FRESH AIR |
| | INLET CONNECTION IN AIR RETURN SYSTEMS HAVE A CAPACITY |
| | GREATER THAN 7080L/SEC(15.000FT3/MIN) AND SERVING MORE |
| | THAN ONE STORY. |
| | |
| | 6.4.3* FUNCTION. |
| | 6.4.3.1 SMOKE DETECTORS PROVIDED AS REQUIRED BY 6.4.2 |
| | SHALL AUTOMATICALLY STOP THEIR RESPECTIVE FAN(S) ON |
| | DETECTING THE PRESENCE OF SMOKE. |
| | |
| | 6.4.4 INSTALLATION |
| | |
| | 6.4.4.1 SMOKE DETECTORS SHALL BE INSTALLED, TESTED, AND |
| | MAINTAINED IN ACCORDANCE WITH NFPA 72. |
| | |
| | 6.4.4.2.1 SMOKE DETECTORS USED SOLELY FOR CLOSING |
| | DAMPERS OR FOR HEATING, VENTILATING, AND |
| | AIR-CONDITIONING SYSTEM SHUTDOWN SHALL NOT BE REQUIRED |
| | TO ACTIVATE THE BUILDING EVACUATION ALARM. |
| | |
| | 6.4.4.3 WHERE SMOKE DETECTORS REQUIRED BY SECTION 6.4 |
| | ARE INSTALLED IN A BUILDING NOT EQUIPPED WITH AN |
| | APPROVED FIRE ALARM SYSTEM AS SPECIFIED BY 6.4.4.2, THE |
| | FOLLOWING SHALL OCCUR: |
| | (1) SMOKE DETECTOR ACTIVATION REQUIRED BY SECTION 6.4 |
| | SHALL CAUSE A VISUAL SIGNAL AND AN AUDIBLE SIGNAL IN A |
| | NORMALLY OCCUPIED AREA. |
| | (2) SMOKE DETECTOR TROUBLE CONDITIONS SHALL BE |
| | INDICATED |
| | |
| | AND |
| | |
| | PER NFPA 72, 2016 ED |
| | CHAPTER 21 EMERGENCY CONTROL FUNCTION INTERFACES |
| | 21.7 HEATING, VENTILATING AND AIR-CONDITIONING (HVAC) |
| | SYSTEMS. |
| | 21.7.1 THE PROVISIONS OF SECTION SHALL APPLY TO THE |
| | BASIC METHOD BY WHICH A FIRE ALARM SYSTEM INTERFACES |
| | WITH THE HEATING, VENTILATING, AND AIR-CONDITIONING |
| | (HVAC) SYSTEM |
| | 21.7.4 SMOKE DETECTORS MOUNTED IN THE AIR DUCTS OF HVAC |
| | SYSTEMS SHALL INITIATE A SUPERVISORY SIGNAL |
| | |
| | 23.8.5.4.6 SIGNAL INITIATION ? DUCT SMOKE DETECTORS. |
| | 23.8.5.4.6.1 WHERE DUCT SMOKE DETECTORS ARE REQUIRED TO |
| | BE MONITORED AND A BUILDING FIRE ALARM SYSTEM IS |
| | INSTALLED, A DUCT DETECTOR ACTIVATION SIGNAL SHALL MEET |
| | THE REQUIREMENTS OF 21.7.4. |
| | 21.7.4 SMOKE DETECTORS MOUNTED IN THE AIR DUCTS OF HVAC |
| | SYSTEMS SHALL INITIATE A SUPERVISORY SIGNAL. |
| | |
| | PLEASE ENSURE THAT THESE DUCT DETECTORS ARE APPLICABLE |
| | TO CODE TO SEND A SUPERVISORY SIGNAL AND PROGRAM |
| | ACCORDINGLY. |
| | |
| | |
| | PETER LEDUC |
| | FIRE MARSHAL |
| | 561-804-4709 |
| | [email protected] |
