BIG ASS FANS Isis Installation Manual page 52

National Fire Protection Association Standard for HVLS — United States and Canada
In accordance with sections 12.1.4 and 11.1.7: High Volume Low Speed (HVLS) Fans of NFPA 13, the installation of
HVLS fans in buildings equipped with sprinklers, including ESFR sprinklers, shall comply with the following:
• The maximum fan diameter shall be 24 feet (7.3 meters).
• The fan shall be approximately centered between four adjacent sprinklers.
• The vertical clearance from the fan to sprinkler deflector shall be a minimum of 3 feet (0.9 meters).
• All 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 National Fire Alarm and Signaling Code.
WARNING: The fan should not be installed unless the structure on which the fan is to be mounted is of
sound construction, undamaged, and capable of supporting the loads of the fan and its method of mounting.
Verifying the stability of the mounting structure is the sole responsibility of the customer and/or end user, and
Big Ass Solutions hereby expressly disclaims any liability arising therefrom, or arising from the use of any
materials or hardware other than those supplied by Big Ass Solutions or otherwise specified in the installation
instructions.
If this installation will be performed outside the scope of work or not within the specifications of Big Ass Solutions
by customer's request, please provide specific details:
Please sign below if both parties agree that all aspects of this installation have been thoroughly explained and
are of clear understanding and agreement of the installation to be completed.
Customer Signature:
Printed Name:
Contractor Signature:
Printed Name:
The supervisor is to hold all documents until the job is complete and send all forms back to Field Service Manager.
This will consist of the service/work order, Check-In document, and Close-Out document. The installation crew will
not receive payment until all forms are signed by the facility manager and the supervisor. These documents will
then be forwarded to the Field Service Manager at Big Ass Solutions.
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