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Disapproved 917.8 Manufaturers Installation Requirements
Answer to be posted May 2010
Question of the Month:
WHAT IS THE MAXIMUM VELOCITY OF AIR (IN FEET PER MINUTE) IN A CENTRAL VACUUM SYSTEM?
(A) LESS THAN 25
(B) LESS THAN 1,000
(C) LESS THAN 5,000
(D) NO MAXIMUM SPECIFIED
Answer: C
713.7.2 Velocity. The velocity of airflow in a central vacuum (fluid suction) system shall be less than 5,000 feet per minute (25 m/s).