Mich. Admin. Code R. 400.10549 - Air-handling equipment
Rule 549.
(1) In
newly constructed or converted large or secure facilities, air conditioning,
warm-air heating, air cooling, and ventilating systems shall comply with the
provisions of the national fire protection association pamphlet no. 90A,
entitled "Air Conditioning and Ventilating Systems," 1978.
(2) In newly constructed or converted large
or secure facilities, fans and air-handling equipment used for recirculating
air in more than 1 room or single area shall have a thermostatic device with a
setting of not more than 125 degrees Fahrenheit or an approved automatic smoke
detector located in the system at a suitable point in the return air duct ahead
of the fresh air intake, the actuating of which shall open the electrical
circuit that supplies the fan motor. Fan rooms shall be designed and used only
to house other mechanical equipment.
(3) In existing facilities, fans and
air-handling equipment and systems that are approved pursuant to R 400.71 et
seq. shall continue to be approved until the facility is converted. This
subrule does not abrogate requirements relative to maintaining the equipment
and systems in proper and safe working order.
Notes
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