Not permitted by NFPA 20, 2010 ED, see below and words in bold red
4.12* Equipment Protection.
4.12.1* General Requirements. The fire pump, driver, controller, water supply, and power supply shall be protected against possible interruption of service through damage caused by explosion,
fire, flood, earthquake, rodents, insects, windstorm,freezing, vandalism, and other adverse conditions.
4.12.1.2 Outdoor Fire Pump Units.
4.12.1.2.1 Fire pump units that are outdoors shall be located at least 50 ft (15.3 m) away from any buildings and other fire exposures exposing the building.
4.12.1.2.2 Outdoor installations shall be required to be provided with protection against possible interruption, in accordance with 4.12.1.
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