Gas appliances not requiring protection but located under the same ventilation equipment shall _______.

Gas appliances not requiring protection but located under the same ventilation equipment shall _______.

• A. also be shut off
• B. be insulated
• C. remain on during operation
• D. be switched to standby

Answer: (A)

Gas appliances that sit under the same ventilation equipment but don’t have their own protection rely on the hood’s operation for safety. If the ventilation system is shut down or not functioning, continuing to supply gas could lead to gas accumulation in an unvented space, creating an ignition risk. To prevent this, the gas supply to those appliances is shut off automatically when the ventilation equipment is not operating, typically via a valve interlock tied to the exhaust system. Insulating the appliances or leaving them on, or switching to standby, would not address the hazard of unvented gas leaks when the hood isn’t running, so they don’t fit the safety requirement.

Gas appliances that sit under the same ventilation equipment but don’t have their own protection rely on the hood’s operation for safety. If the ventilation system is shut down or not functioning, continuing to supply gas could lead to gas accumulation in an unvented space, creating an ignition risk. To prevent this, the gas supply to those appliances is shut off automatically when the ventilation equipment is not operating, typically via a valve interlock tied to the exhaust system.

Insulating the appliances or leaving them on, or switching to standby, would not address the hazard of unvented gas leaks when the hood isn’t running, so they don’t fit the safety requirement.