§ 111.103-1 — -1 Power Ventilation Systems Except Machinery Space Ventilation Systems

Each power ventilation system that is not a machinery space ventilation system must have:

(a) A control to stop the ventilation that is:

(1) Outside the space ventilated; and

(2) Grouped with the controls for every power ventilation system to which this section is applicable; and

(b) In addition to the control required by paragraph (a), a stop control that is:

(1) As far as practicable from the control required by paragraph (a) and grouped with the controls for every power ventilation system to which this section is applicable; or

(2) The circuit breakers for ventilation grouped on the main switchboard and marked, “In Case of Fire Trip to Stop Ventilation.”