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There must be a 3 foot minimum clearance from the sprinkler deflector Using a 7/8” wrench, fasten top plate of extension to the bottom plate of … As usual, the majority of the Submit under provisions of Section 01 30 00 - Administrative Requirements. 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—National Fire Alarm and Signaling Code. 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. Summary Sheet NFPA 13… The fan shall meet the air velocity requirements of FM 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. 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 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. DESIGN APPROACHES – NFPA 13 (2013) 11.1.7* High Volume Low Speed (HVLS) Fans. The waterflow alarm system shall be in accordance with the requirements of NFPA … High volume low speed (HVLS) fans are large mechanical fans that are 6 feet or wider and used in commercial and industrial settings. 4) All HVLS fans shall be interlocked to shutdown within 90 seconds of water flow from the first operating sprinkler. Product Fan must also be interlocked to shut 21.8 High Volume Low Speed (HVLS) Fans. E. Fan controls shall comply with the National Electrical Code (NEC) and Underwriters Laboratory (UL) standards. 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. 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). However, the fire protection requirements surrounding these fans are often ov Figure 6a-c show the outcomes of visibility, a dominant criterion to justify smoke movement, to Unlike standard high-speed fans, HVLS fans move very slowly. The installation of HVLS fans in buildings equipped with sprinklers, including ESFR sprinklers, shall comply with the following: (1) The 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”. Hydraulic Calculations shall provide the following: a. Furthermore, the time required to fully stop HVLS fans (i.e., 90 seconds in NFPA 13) adds additional effect to aggravate smoke spread. 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 B. 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 3. Many of NFPA 13’s recent technical content changes have been in the area of protection of storage occupancies. 1. The study also resulted in Engineering Bulletin 02-11 being added as a supplement to Factory Mutual Data Sheet 2-0 in March 2011. Please call EnergyLogic for guidance This project … National Fire Protection Association (NFPA) 13 - National Fire Code for Sprinklers. All Rite-Hite HVLS fans have the ability to receive a low voltage stop command from the alarm system, which addresses #4 above. IMPORTANT: All fans must meet NFPA 13 requirements to meet legal requirements when mounting fans. Fans must be approximately centered between four adjacent sprinklers. TRI-LITE HVLS SERIES FANS TRI-LITE HVLS-M (04_29_15) Page 5 of 13 INSTALLING THE EXTENSION 1. 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. Fan must be 24 ft (7.3 m) or smaller 2. HVLS fans NFPA 13, 11.1.7 * * HVLS fans shall be shown on all reflected ceiling plans and fire sprinkler plans. When installed in accordance with NFPA 13, HVLS fans do not impact the performance of early-suppression, fast-response (ESFR), and control-mode-density-area (CMDA) sprinkler systems. 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 13 – Installation of Sprinkler Systems, continues to evolve with the 2013. NFPA 13 STANDARDS FOR HVLS FANS Maximum allowable fan diameter of 24 feet. 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 NFPA: National Fire Protection Association • NFPA 13 states that HVLS fans must: –Not exceed a diameter of 24 feet –Be centered approximately between four adjacent sprinklers –Have at least 3 feet of vertical clearance from All Rite-Hite HVLS fans have the ability to receive a low voltage stop command from the alarm system, which addresses #4 above. 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 Circulating Fans for Rating. 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 5. 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). Both types are typically used in high-storage and warehouse facilities, and need to … With very low rotational speed, HVLS fans move speed. Prior to installing fans, review all codes applicable to sprinkler systems and fans to ensure code compliance (refer to NFPA 13). B. The air speed over the sprinklers in this position will be less than 1 meter/sec. During development of the 2013 edition, the responsible committees addressed 606 proposals and 380 comments. state and local codes. Guidelines Support HVLS Fans with Sprinklers | Facility Executive - Creating Intelligent Buildings Based on extensive testing, the National Fire Protection Association’s (NFPA) Research Foundation has established guidelines for the installation and use of HVLS (High Volume Low Speed) fans in buildings with ESFR (Early Suppression Fast Response) automatic sprinklers. 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. 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). 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 The air speed over the sprinklers in this position will be less than 1 meter / sec. 1.4 SUBMITTALS A. 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). For NFPA 13 compliance, fan must be installed in the center of four adjacent sprinklers with at least 3 ft. of vertical clearance between the fan and sprinkler deflectors. HVLS Fan centered approximately between four adjacent sprinklers. 11.1.7 * High Volume Low Speed (HVLS) Fans. The winning project of the 2012 Fire Protection Research Foundation Medal was "High Volume/Low Speed Fans and Sprinkler Operation". 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