| Date |
Text |
| 2023-05-23 12:37:19 | FIRE PROVISO: |
| | |
| | PER NFPA 72 & 90 ACTIVATION |
| | OF DD WILL CAUSE A SUPERVISORY |
| | NOTIFICATION AT PANEL & CENTRAL |
| | STATION. |
| | |
| | 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 VISUALLY OR AUDIBLY IN A NORMALLY OCCUPIED |
| | AREA AND SHALL BE IDENTIFIED AS AIR DUCT DETECTOR |
| | TROUBLE. |
| | |
| | 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. |
| | 21.7.4.1 SMOKE DETECTORS MOUNTED IN THE AIR DUCTS OF |
| | HVAC SYSTEMS IN A FIRE ALARM SYSTEM WITHOUT A |
| | CONSTANTLY ATTENDED LOCATION OR SUPERVISING STATION |
| | SHALL BE PERMITTED TO INITIATE AN ALARM SIGNAL. |
| | 21.7.4.2 SMOKE DETECTORS MOUNTED IN THE AIR DUCTS OF |
| | HVAC SYSTEMS SHALL BE PERMITTED TO INITIATE AN ALARM |
| | SIGNAL WHERE REQUIRED BY OTHER GOVERNING LAWS, CODES, |
| | OR STANDARDS. |
| | |
| | PLEASE PROGRAM ACCORDINGLY FOR SUPERVISORY ACTIVATION. |
| | |
| | PETER LEDUC |
| | FIRE MARSHAL |
| | 561-804-4709 |
| | [email protected] |
| | |
