How should the NFPA 20-compliant exhaust system be installed for a diesel fire pump?

How should the NFPA 20-compliant exhaust system be installed for a diesel fire pump?

• A. It should vent into the pump room
• B. It must vent to the outdoors, away from occupied spaces, and meet applicable codes and clearances
• C. Exhaust is optional for diesel pumps
• D. It should vent into the surrounding soil

Answer: (B)

Diesel engine exhaust from a fire pump must be discharged to the outdoors and kept away from occupied spaces. This Keeps harmful gases, especially carbon monoxide, out of the pump room and any areas where people may be present, and it prevents exhaust from being drawn back into the building through doors, windows, or intakes. The outlet should be located with proper clearances from openings, air intakes, and nearby combustibles, and it must meet the applicable codes and local requirements. Venting into the pump room or into the surrounding soil is not acceptable, as it does not safely remove the exhaust or protect occupants.

Diesel engine exhaust from a fire pump must be discharged to the outdoors and kept away from occupied spaces. This Keeps harmful gases, especially carbon monoxide, out of the pump room and any areas where people may be present, and it prevents exhaust from being drawn back into the building through doors, windows, or intakes. The outlet should be located with proper clearances from openings, air intakes, and nearby combustibles, and it must meet the applicable codes and local requirements. Venting into the pump room or into the surrounding soil is not acceptable, as it does not safely remove the exhaust or protect occupants.