nfpa 13 hvls fans

All Rite-Hite HVLS fans have the ability to receive a low voltage stop command from the alarm system, which addresses #4 above. 11.1.7 * High Volume Low Speed (HVLS) Fans. does anyone have the wording out of NFPA 13 2013, they can post, that deals with the design if you have::: HVLS High Velocity Low Speed fans found it not word for word 1. max 24 foot fan 2. centered between for Unlike standard high-speed fans, HVLS fans move very slowly. Because this airflow can disrupt a heat plume needed to activate sprinklers, NFPA 13 Chapter 19 specifies the location of HVLS fans as approximately centered between 4 adjacent sprinklers and a minimum of 3 feet below the sprinkler deflector. control system which will emergency-stop fans in case of fire. 1. The fan shall meet the air velocity requirements of FM Product NFPA 13 STANDARDS FOR HVLS FANS Maximum allowable fan diameter of 24 feet. Where required by NFPA 13, all HVLS fans shall be interlocked to shut down upon activation actuation of a sprinkler waterflow switch that indicates waterflow in the area served by the The winning project of the 2012 Fire Protection Research Foundation Medal was "High Volume/Low Speed Fans and Sprinkler Operation". 3. 21.8 High Volume Low Speed (HVLS) Fans. The fans shall be as follows: The fan shall meet the requirements of NFPA 13 (National Fire Code for Sprinklers) in regards to blocking obstructions below sprinkler heads. 1.4 SUBMITTALS A. With very low rotational speed, HVLS fans move speed. SAN BERNARDINO, Calif. – Sept. 13, 2012 – A collaborative research project evaluating the effect of high volume, low speed (HVLS) commercial fans on the effectiveness of automatic sprinklers has been awarded the 2012 Fire Protection Research Foundation Medal, further establishing safety guidelines, and consumer and insurer confidence for the fan category. During development of the 2013 edition, the responsible committees addressed 606 proposals and 380 comments. This project … Figure 6a-c show the outcomes of visibility, a dominant criterion to justify smoke movement, to All HVLS fans shall be interlocked to shut down immediately upon receiving a waterfowl signal from the alarm system in accordance with the requirements of NFPA 72. Revised 10/08/13 Section 407.7 Page 2 of 2 REQUIREMENTS Based upon the identified risks, the Department has determined that: HVLS fans shall be interconnected to a fire alarm system when present. D. Fans shall be compliant with NFPA 13 – Standard for the Installation of Sprinkler Systems, NFPA 72 – National Fire Alarm and Signaling Code, and NFPA 70 – National Electrical Code (NEC). They are used for moving large amounts of air, and are commonly found in warehouses and similar environments. Using a 7/8” wrench, fasten top plate of extension to the bottom plate of … Submit under provisions of Section 01 30 00 - Administrative Requirements. HVLS fans NFPA 13, 11.1.7 * * HVLS fans shall be shown on all reflected ceiling plans and fire sprinkler plans. There must be a 3 foot minimum clearance from the sprinkler deflector Fan must also be interlocked to shut As usual, the majority of the Furthermore, the time required to fully stop HVLS fans (i.e., 90 seconds in NFPA 13) adds additional effect to aggravate smoke spread. NFPA 13 (Installation of Sprinkler Systems), 2013 Edition, released a new set of HVLS installation and design rules based on this series of tests: The maximum allowable HVLS fan diameter is 24 feet (8 meters). HVLS Fan centered approximately between four adjacent sprinklers. All HVLS fans shall be interlocked to shut down immediately upon receiving a water flow signal from the alarm system in accordance with the requirements of NFPA 72. B. Circulating Fans for Rating. cm) in diameter, HVLS fans have very large diameters that start at 8 feet (2.4 m) and go up to 24 feet (7.3 m). NFPA 13 addresses the presence of HVLS-type fans by requiring the shutdown of the fans upon the activation of the sprinkler’s waterflow alarm FM Global currently addresses HVLS fans in a similar Fashion in Data Sheet 2-0 The waterflow alarm system shall be in accordance with the requirements of NFPA … IMPORTANT: All fans must meet NFPA 13 requirements to meet legal requirements when mounting fans. All HVLS fans shall be interlocked to shut down immediately upon receiving a water flow signal from the alarm system in accordance with the requirements of NFPA 72 5. The air speed over the sprinklers in this position will be less than 1 meter/sec. National Fire Protection Association (NFPA) 13 - National Fire Code for Sprinklers. E. Fan controls shall comply with the National Electrical Code (NEC) and Underwriters Laboratory (UL) standards. HVLS fans are large fans greater than 6 feet (2.1 m) in diameter that move massive quantities of air at 3 to 5 mph (4.8 to 8.1 kph). 7. All HVLS fans shall be interlocked to shut down immediately upon receiving a water flow signal from the alarm system in accordance with the requirements of NFPA 72. TRI-LITE HVLS SERIES FANS TRI-LITE HVLS-M (04_29_15) Page 5 of 13 INSTALLING THE EXTENSION 1. Both types are typically used in high-storage and warehouse facilities, and need to … Fans must be approximately centered between four adjacent sprinklers. Where an HVLS fan(s All HVLS fans shall be interlocked to shut down immediately upon receiving a waterflow signal from the alarm system in accordance with the requirements of NFPA 72. NFPA Project on HVLS Fans and Sprinkler Systems Wins Research Foundation Medal July 2nd, 2012 Print This Post The 2012 Fire Protection Research Foundation Medal was awarded to the research project on “High Volume/Low Speed Fans and Sprinkler Operation”. Many of NFPA 13’s recent technical content changes have been in the area of protection of storage occupancies. Summary Sheet NFPA 13… Refer to FM Global DS 2-0, “Installation Guidelines for Automatic Sprinklers” or NFPA 13, “Standard for the Installation of Automatic Sprinkler Systems.” Risk Logic, Inc. can help you determine the best approach to shut down HVLS fans as improper shutdown can result in a total loss at your facility. In accordance with NFPA 13 Standard from the National Fire Prevention Association as referenced in sections 12.1.4 and 11.1.7: High Volume Low Speed (HVLS) Fans: The installation of HVLS fans in buildings equipped with All HVLS fans shall be interlocked to shut down immediately upon receiving a waterflow signal from the alarm system in accordance with the requirements of NFPA 72—National Fire Alarm and Signaling Code. 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