Start-Up And Operation - FLOWTECH flowboost F.H Operation And Maintenance Manual

Start-up and Operation

Preliminary checks before start-up of the pump
Do not start-up the device in case of damaged parts.
First starting
ATTENTION: never run the pump dry.
Start the pump after filling it completely with liquid.
When the pump is located above the water level
Suction lift operation or with a positive suction head which is too low (less than 1m) to open the non-return
valve, fill the pump through the priming hole.
When the liquid level on the suction side is above the pump
(inflow under positive suction head, fill the pump by opening the suction gate valve slowly and completely,
keeping the delivery gate valve open to release the air.
Before starting, check that the shaft turns by hand. For this purpose use the screwdriver notch on the shaft
end on the ventilation side.
When starting, with a three-phase motor, check that the direction of rotation
Is as shown by the arrows on the lantern bracket.
Otherwise, disconnect electrical power and reverse the connections of two phases.
Check that the pump works within its field of performance and that the absorbed current shown on the
name-plate is not exceeded. Otherwise adjust the delivery gate valve or the setting of any pressure switches.
If a priming loss occurs (interruption of delivery flow) or if a pressure oscillation is indicated by the pressure
gauge, make sure all the suction pipe couplings are perfectly sealed and tighten the two sealed plugs on the
pump casing.
Never run the pump for more than five minutes with a closed gate valve.
Prolonged operation without a change of water in the pump causes dangerous increases of temperature and
pressure.
When the water is overheated due to prolonged operation with a closed port, stop the pump before opening
the gate valve.
To avoid any risk of danger to users and the creation of harmful thermal stress in the pump and system due
to large temperature differentials, wait until the water has cooled inside the pump before starting again.
If the water is overheated on account of prolonged operation with a non-primed or insufficiently filled pump
(suction lift operation), wait until cool before opening the draining and filling plugs.
Care must be taken when the pumped fluid has a high temperature. Do not touch the fluid when its
temperature is higher than 60°C. Do not touch the pump when the surface temperature is higher than 80°C.
Switch off of the pump
The appliance must be switch off every time there are faults. (See troubleshooting).
The product is designed for a continuous duty, the switch off is performed by disconnecting the power
supply by means the expected disconnecting devices. (See Electrical connection).
flowboost
F.H Pump Manual
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