5
a) Preparation for operation
Read these instruction first
Inspect your pump for shipping damage. Report any damage to your Onga
dealer. Make sure the suction piping is free of air leaks and is laid so that
it rises evenly from water source to pump. This makes priming easier and
avoids airlock.
b) Pump Protection
Warranty of this pump is void unless it is operated in accordance with this
owner’s manual. The pump should be housed in a weather proof, well venti-
lated enclosure, to protect from the weather, flooding, chemicals, dust,
vermin, insects etc.
c) Pump Mounting
The pump must be mounted on a solid, level, vibration free surface.
Moulded pumps can be damaged by connected piping. Pipe should be supported
so the pump casing is not strained by the pipe weight or misalignment.
d) Suction
To maintain optimum performance from your pump, the suction pipe should be:
•
Kept to the shortest length possible - place the pump as close to the
water source as possible.
•
Re-enforced crush resistant (non-collapsible) hose or pipe.
•
All fittings should be air tight.
•
Pipes should be equal to or larger than the diameter of the suction/inlet
port.
•
If footvalve is being used it must be completely submerged.
This appliance is not intended for use by young children or infirm persons
without supervision. Children should be supervised at all times when near this
appliance.
INSTALLATION
Total Suction Head
Feet
Metres
Percentage
of Rated
Capacity
10
3.0
80%
15 4.6 70%
20 6.1 57%
Reduction of Capacity with Centrifugal Pump Suction
Please note. Reduction of capacity affects both flow and pressure.
L100100_400Series_OM
Wednesday, 13 March 2013 9:13:38 AM
