Michigan Mechanical Heating Service Practice Exam

CSD names the formal standard for the controls and safety devices used on boilers that start and run automatically. The expansion is “Controls and Safety Devices for Automatically Fired Boilers.” This standard identifies the required safety interlocks, flame safeguard, shutdown mechanisms, and other automatic controls that ensure a boiler operates safely without manual intervention. The other phrases aren’t recognized boiler standards or terms in this context, so they don’t fit. In practice, CSD-1 is the reference you’ll see when discussing the necessary control and safety equipment for automatically fired boilers.