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Horizontal Multistage
Centrifugal Pumps
SMH Range
SMH35 SMH45 SMH55 SMH75 SMH90
We recommend, for additional protection, the pump
to be supplied from socket outlet protected by
a residual current device – RCD (also known as
an Earth Leakage Circuit Breaker – ELCB) with a
maximum rated residual current of 30mA.
Should you the installer or owner be unfamiliar with the correct
installation or operation of this type of equipment you should contact
the distributor/manufacturer for the correct advice before proceeding
with the installation or operation of this product.
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Related Manuals for onga SMH90
Summarization of Contents
Installation
Preparation for Installation
Inspect pump for shipping damage and ensure suction piping is free of air leaks and airlocks.
Pump Protection
Protect pump from weather, chemicals, dust, vermin, insects etc. using a well-vented enclosure.
Pipe Installation
Connect pipes carefully to avoid straining the pump casing; use flexible pipes and moulded fittings.
Locating the Pump
Position pump close to water source on a separate footing from home, such as a concrete tile or base.
Power Source
Arrange for an electrician to install an outdoor 10A GPO electrical outlet near the pump if needed.
Suction
Ensure suction pipe is kept to shortest practical distance, is reinforced, airtight, and properly submerged.
Discharge
Discharge pipe diameter and length affect pressure/flow; component pressure ratings must exceed pump pressure.
Pump Priming
Fill pump and suction line with water before starting; ensure tank water covers outlet and check for leaks.
Electrical
Connect pump via provided coupler to a suitable socket outlet, ensuring connectors are dry and secure.
Operation
Start-up / Operation
Ensure pump is primed correctly before start-up and check motor rotation direction (clockwise when viewed from fan).
D.R.O.P (Dry Running Over-Temperature Protection)
System protects pump hydraulics from damage due to overheating or running dry; reset via condenser box switch.
Restoring Operation
Procedure to restore operation after a fault, involving switching off, unplugging, cooling, and restarting.
Service and Maintenance
General Care and Maintenance
Pump requires minimal attention; periodically check pressure and power absorption for signs of wear or abnormal function.
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