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• The service entrance ground rod is properly installed and connected. This equipment should be installed and serviced by technically qualified personnel. Failure to comply with MBH Pump recommendations may result in personal injury, • An input ground wire from the panel is connected to the motor.
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VACUUM SYSTEM 1. Confirm the package is still aligned. The MBH Pro-Prime Series Pumps Priming System is designed to allow the pump to prime without using a foot valve and without manually adding water to the system. The NOTE: Motor drive coupling misalignment tolerance decreases by 50% when a Pro-Prime system uses a positive-sealing float box and a diaphragm vacuum pump VFD is applied.
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The MBH Vacuum Priming Valve is used in conjunction with a central vacuum priming system to prime (fill with water) a MBH Auto Prime pumps. The valve is typically mounted on the suction piping or pump volute.
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The pump can idle in this manner indefinitely or until a demand is made on it to again evacuate the system. The vacuum pump is either top-mounted or side-mounted on MBH RPD series pumps. The pump can be serviced in either configuration, whether mounted to the centrifugal pump or removed.
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