18-28-1105.8.4 Quantity – Emergency conditions.

   Upon actuation of the refrigerant detector required in Section 18-28-1105.5, the mechanical ventilation system shall exhaust air from the machinery room in the following quantity:

where:

   Q = The airflow in cubic feet per minute (m3/s).

   G = The design mass of refrigerant in pounds (kg) in the largest system, any part of which is located in the machinery room.