Functional Testing

NA7.5.15.2.2 Functional Testing - Exhaust Systems with Demand Control Ventilation The following additional acceptance test shall be performed on all hoods with demand control ventilation exhaust systems. 1. Turn off all kitchen hoods, makeup air and transfer systems 2. Turn on one of the appliances on the line and bring to operating temperature. Confirm that: a. DCV system automatically switches from off to the minimum flow setpoint. b. The minimum flow setpoint does not exceed the larger of i. 50% of the design flow, or  ii. the ventilation rate required per Section 121. c. The makeup air and transfer air system flow rates modulate as appropriate to match the exhaust rate d. Appropriate space pressurization is maintained. 3. Operate all appliances at typical conditions. Apply sample cooking products and/or utilize smoke puffers as appropriate.  Confirm that: a. DCV system automatically ramps to full speed. b. Hood maintains full capture and containment during ramping to and at full-speed c. Appropriate space pressurization is maintained.