Ariz. Admin. Code § R18-5-225 - Pumps and Motors
A. A pump and
motor shall be provided for each water circulation system. The pump shall be
sized to meet but not to exceed the flow rate required for filtering against
the total head developed by the complete water circulation system. The pump
shall be sized to comply with the turnover rate prescribed in
R18-5-223(B).
B. Pumps and motors shall be readily and
easily accessible for inspection, maintenance, and repair. When the pump is
below the waterline, valves shall be installed on permanently connected suction
and discharge lines. The valves shall be readily and easily accessible for
maintenance and removal of the pump.
C. Each motor shall have an open, drip-proof
enclosure. Each motor shall be constructed electrically and mechanically to
perform satisfactorily and safely under the conditions of load in the
environment normally encountered in swimming pool or spa installations. Each
motor shall be capable of operating the pump under full load with a voltage
variation of ± 10% from the nameplate rating. Each motor shall have
thermal or current overload protection to provide locked rotor and running
protection. Thermal or current overload protection may be built into the motor
or in the line starter.
D. The pump
shall be equipped with an emergency shut-off switch that is located within the
swimming pool or spa enclosure to cut off power to the water circulation system
if someone is entrapped on a main drain or suction outlet.
Notes
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No prior version found.