scope:

This standard encompasses the design and performance requirements for diesel engines used in fire pump service that are designed and installed in accordance with local jurisdictional requirements.

This standard does not address national or local codes which require specific emission levels to be met by stationary diesel engine installations.

Accessories such as a Variable Speed Pressure Limiting Control System (VSPLC) may be examined within the scope of this standard.

This standard encompasses mechanical speed controller (governor style), in addition to electronic fuel management systems.

This standard encompasses diesel engines that are normally aspirated, turbocharged, twin turbocharged, and those fitted with aftercoolers.

This standard encompasses diesel engines with liquid cooling or open air cooling.

This standard encompasses diesel engines with operating speeds at or below 3600 rpm. Typical engine speeds are: 1000, 1200, 1450, 1760, 1800, 2100, 2350, 2400, 2600, 2800, 3000, and 3600 rpm.

Purpose

This standard states testing and certification criteria for diesel engines used to drive fire pumps that supply water to fire protection systems. These diesel engines must have an extended service life, throughout which they must be capable of operating reliably at rated power and speeds during emergency fire incidents, despite being idle for extended periods.