47
Safety, Installation and Operations Manual – Translation of original instructions
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Before connecting the pump to the power supply panel:
• Check the level and the condition of the oil in oil chamber
• Check that the impeller can turn freely
• Check that the impeller turns in the correct direction
6.2
Once installation is complete, the system should be tested to ensure that it is fully operational.
The pump must always be used with the safety devices installed and in good working order; make sure that all protective equipment has been
connected correctly.
Check that the required gate valves (where fitted) are open.
Switch on the power supply and let the pump run briefly and:
• Make sure that the pump does not operate off its characteristic curve
• check that the input current is within the limit stated on the nameplate
• check whether the monitoring units are operating satisfactorily (no alarms or warnings)
• check the setting of the level control system (minimum and maximum levels)
The pump’s acoustic pressure level when in operation is below 70 dB.
However, in some systems and in some duty points on the performance curve this threshold may be exceeded.
Check the permitted acoustic pressure level in the environment where the product is installed to avoid breaching local legal requirements.
Regular maintenance and inspections are indispensable to maintaining the pump’s performance. For this reason, the complete unit should be
cleaned thoroughly on a regular basis, maintained and inspected.
If the pump behaves differently from its normal operating condition, refer to section ”9. Troubleshooting guide” of this manual and take appropriate
measures at an early stage.
to the motor.
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A service and planned maintenance contract with the Zenit Authorised Service Centre guarantees the best technical service.
The Zenit warranty is only valid if repairs and reactive maintenance are performed by an Authorised Service Centre.
EN
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