MULTIBOOST
Actual start-up
• Check the power supply condition as per the name plate
• Do proper earthling
• Fix the pressure gauge before control valve
• Set the relay as per current value given on name plate and start the pump.
• Set the duty parameters as per value given on name plate by control valve.
• Pump should run always on duty point specified on name plate
3.6 Operating limits of pump
Operational safety requirements stipulate that pump may only be operated
continuously within the flow rate and pump head limits which are specified on
operation range, provided that motor is not overloaded.(For ensuring this the motor
current should not exceed as specified on name plate)
3.7 Switching frequency
• In order to prevent the motor from heating up excessively due to many switching
cycles, a maximum of 15 starts per hour are permitted with a minimum of 3
minutes interval as a shut down period between two successive starts.
• It is advice able to run pump set for a few minutes to maintain freeness.
4 Maintenance
Leakage through Mechanical Seal :
• Replace the mechanical seal if there is excessive leakage through it. The following
precautions to be taken while replacing a mechanical seal failure.
• Keep all the seal parts clean during handling. Any dirt or foreign particles on the
seal surface could cause a premature seal failure.
• Vibration of pump set may cause seal failure. Hence try to prevent vibrations in
pump set.
• Through cleaning of the housing is necessary before fixing counter face (stationary
ring – ceramic or metal ring in runner L ring) to eliminate all the dirt in that area.
• The outer diameter of the stationery L rubber ring and housing should be slightly
moistened with 10% of liquid soap and 90% of clean water. Using a brush moisten
the shaft and interior of seal with soap solution. Do not immerse seal in the
solvent.
• Always use fitting tube of fixing the counter face. Ensure that the counter face is
perpendicular to the shaft. Do not hammer the fitting sleeve.
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