Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
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title: Fire Pump Controllers
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## The controller shall bear the listing mark of a Nationally Recognized Testing Laboratory under UL 218 for the specific type, voltage, and horsepower furnished.
−## A non-listed general-purpose motor controller, soft-starter, or transfer switch shall not be substituted for a listed fire pump controller. {note}
+## A non-listed general-purpose motor controller, soft-starter, or transfer switch shall not be substituted for a listed fire pump controller.
## Substituting a non-listed motor controller is a common value-engineering proposal; it will be rejected by the Authority Having Jurisdiction and the property insurance carrier, and it voids the fire pump system listing. {note}
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## The controller short-circuit current rating shall equal or exceed the available fault current at the point of installation, as determined by the project short-circuit study.
−## Generator-fed systems can present unexpectedly high X/R ratios; the available fault current used to verify the controller short-circuit current rating shall reflect both the utility source and the alternate (generator) source. {note}
+## Generator-fed systems can present unexpectedly high X/R ratios; the available fault current used to verify the controller short-circuit current rating shall reflect both the utility source and the alternate (generator) source.
# Power Supply and NEC Article 695 Compliance {toc}
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## Voltage at the motor terminals shall not drop more than 5% below the motor-rated voltage when the motor is running at 115% of full-load current.
−## A fire pump fed from a transformer shared with other large motor loads can satisfy a steady-state voltage study yet fail the 15% starting limit; the starting voltage drop shall be evaluated at the fire pump locked-rotor condition, not at normal building load. {note}
+## A fire pump fed from a transformer shared with other large motor loads can satisfy a steady-state voltage study yet fail the 15% starting limit; the starting voltage drop shall be evaluated at the fire pump locked-rotor condition, not at normal building load.
## Where two power sources are provided, the normal and alternate source conductors shall be routed with physical separation in accordance with NEC 695.6(B) so that a single fault, fire, or physical event cannot disable both sources.
−## Routing normal and alternate power conduits through the same raceway or the same portion of the building defeats the redundant-source requirement and is a frequent field error; the two sources shall maintain independent routing. {note}
+## Routing normal and alternate power conduits through the same raceway or the same portion of the building defeats the redundant-source requirement and is a frequent field error; the two sources shall maintain independent routing.
## The available fault current at the controller and the controller short-circuit current rating shall be coordinated with the Engineer of Record before procurement.
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## A limited-service controller may be used only for an across-the-line, squirrel-cage motor rated 30 hp or less at 600 V or less, and only where accepted by the Authority Having Jurisdiction.
−## A limited-service controller shall not be used for high-rise buildings or high-hazard occupancies. {note}
+## A limited-service controller shall not be used for high-rise buildings or high-hazard occupancies.
## The controller horsepower and voltage rating shall equal or exceed the pump motor nameplate horsepower and voltage.
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## Each battery bank shall be served by a dedicated integral battery charger matched to the engine manufacturer's battery specification.
−## The diesel controller battery charger and cable sizing shall be coordinated with the engine manufacturer; a mismatch between the controller charger and the engine OEM battery specification causes start failures and is a frequent field problem. {note}
+## The diesel controller battery charger and cable sizing shall be coordinated with the engine manufacturer; a mismatch between the controller charger and the engine OEM battery specification causes start failures and is a frequent field problem.
## The controller shall initiate the automatic weekly test cycle and shall record the engine run for the documented test duration.
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## The controller shall be stored indoors in a clean, dry, conditioned space and protected from moisture, dust, and physical damage until installation.
−## A controller exposed to moisture or contamination during storage shall be inspected and, where required by the manufacturer, reconditioned or replaced before energization. {note}
+## A controller exposed to moisture or contamination during storage shall be inspected and, where required by the manufacturer, reconditioned or replaced before energization.
## The controller shall be handled and rigged using the manufacturer's designated lifting provisions to avoid damage to the enclosure and internal components.
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- Control fuses
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