onga SMH35 Manuale utente
OWNER’S MANUAL
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.
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.
Horizontal Multistage
Centrifugal Pumps
SMH Range
SMH35 SMH45 SMH55 SMH75 SMH90
Technologically advanced solutions for
moving and treating water in the Home,
Garden, Pool and Spa.
Innovative Stock and Crop water
management solutions for Primary
Industries.
Water movement products for Building
services, Emergency services and
Original Equipment Manufacturers.
Relax - you’ve bought an ...
Congratulations on your decision to purchase an Onga product.
Onga is one of the best know brands in its field, with a proud local
and international reputation.
Onga is a brand for reliability, value for money and technological
innovation. You will find Onga product wherever people need to
move water in 3 broad markets covering:
1
1. Continual Product Improvement
We employ the best engineers both in Australia and
around the world to develop new and better ways to
take water further.
2. Operational Excellence
There is only one standard that we set ourselves for both
product quality and the quality of our service. That standard
is excellence... to have no-one better than us at what we
do... nothing short of that is acceptable. Our commitment to
quality is reinforced with our ISO 9001:2000 accreditation.
3. A Fair Price
Onga products are neither the cheapest nor the most
expensive in their field. Our products do, on the other hand,
always represent very good value for money; they always
have and they always will.
4. Our Team of Dealers
The hand picked authorised Onga dealer network throughout
Australia and worldwide are second to none. We invest
considerable time and resources training and supporting
them through the Onga Training Academy.
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Table of Contents Page
Model Data 4
Application 5
Installation 6
Operation 11
Service and Maintenance 13
Trouble Shooting 14
Warranty 15
3
4
Model Data
Model
Motor
(W)
SMH35 350
SMH45 450
SMH55 550
SMH75 750
SMH90 900
Technical Information
Inlet (Suction): 1” BSPF
Outlet (Discharge): 1” BSPF
Water Temperature Range: 1º - 50ºC
IP Rating: IP44
Electrical Supply: 230V +10%, -6%, 50Hz single
phase
Maximum Ambient temperature: 55 ºC
5
Application
Onga SMH Series pumps are suitable for pumping clean water in a
domestic water system, small irrigation applications, and as pressure
booster pumps. The strength of the stainless steel pump casing coupled
with the impervious nature of the technopolymer impeller and diffuser
make it ideally suited for most potable water pumping applications.
NOTE: Consult your Onga dealer for information regarding the suitability of
each SMH pump in an automatic pressure system prior to installation.
Installation
The electrical installation shall be in accordance with the national
wiring rules (AS/NZS 3000) for class 1, IP44 rated products.
These instructions are a guide only. Users not familiar with
pumping equipment should seek advice from people experienced
in pump equipment and installation.
Freezing conditions will damage the unit, because when water
freezes it expands. Ensure that the pump is located so that it is
not prone to freezing, or ensure that the product is disconnected
and dried of water during cold conditions.
SMH pumps are electrically connected. Ensure that they are
switched off and unplugged from socket outlet during installation
and any subsequent service work.
The pump is designed to be used with clean water in a residential
application. Do not use it with alternative fluids, abrasive,
corrosive or explosive fluids. Do not install or operate your pump
in an explosive environment or near combustible matter.
Incorrectly installed or tested equipment may fail, causing severe
injury or property damage.
Fire and burn hazard. Modern motors run at high temperatures. To
reduce risk of fire, do not allow leaves, debris, or foreign matter
to collect around the pump motor. To avoid burns when handling
the motor, let it cool for at least 20 minutes before trying to work
on it. Automatic thermal overload cut-out protects the motor for
heat damage during operation and it will restart without notice
when the motor cools down.
The pump is not intended for use by young children or infirm
persons without supervision. Young children should be supervised
to ensure that they do not play with the pump.
Read the following instructions in this owner’s manual when installing and
operating equipment.
6
7
1. Preparation for Installation
Inspect your pump for shipping damage. Report any damage to your Onga
stockist. Make sure the suction piping is free of air leaks and is laid so that
there can be no airlocks.
Warranty of these pumps is void unless they are operated in accordance with
this owner’s manual.
2. Pump Protection
The pump should be protected from the weather, floods, chemicals, dust,
vermin, insects etc. It is highly recommended that the pump be housed in a
weather proof, well vented enclosure. If the pump is not adequately housed
the warranty may be deemed void.
3. Pipe Installation
Pumps can be damaged if care is not taken when connecting pipes. Pipes
should be supported so that the pump casing is not strained by the weight
or misalignment.
We recommend the pump and pipe are coupled using flexible type polythene
pipe, rubber hose or a multi-directional barrel union. This union coupling can
also be used to remove the pump for service should it be necessary without
having to cut pipes.
Pipe fittings should be carefully screwed onto the pump making sure not to
cross-thread or overtighten. We recommend the use of a moulded pipe fitting
to connect to the pump as this avoids possible damage to the pump threads
and unnecessary replacement of parts.
For best results use teflon tape to join seal joint. Satisfactory sealing can be
achieved by hand tightening fittings ensuring that no leaks are evident once
under pumping pressure.
4. Locating the Pump
Find a location for your pump as close to your water source as possible.
Ensure that this location is on a seperate footing from your home. To do this
you can mount the pump on a concrete tile or concrete base.
5. Power Source
Arrange for an electrician to install an outdoor 10A GPO electrical outlet near
the pump if there is not one there already.
6. Suction
This is the most important part of the installation as errors will cause significant
problems for the system in performance and longevity.
IMPORTANT: A gate valve must be installed at the tank outlets.
Installations where the tank base is below the pump
Installations where the tank base is level with the pump
8
Min 100mm
100mm
In Line Filter
500 Micron
House Wall
Recommended Length 150mm
Barrel Union
Solid Base
Non-Return
Valve
Gate
Valve
Min 100mm
100mm
In Line Filter
500 Micron
House Wall
Recommended Length 150mm
Barrel Union
Solid Base
Gate
Valve
To maintain optimum performance from your pump, the suction pipe should
be:
- Kept to the shortest distance practical, but not shorter than
the recommended length.
- Re-enforced crush resistant (non-collapsable) hose or pipe.
- All fittings should be air tight.
- Pipes should be equal to or larger than the diameter of the
suction/inlet port.
- Ensure that the suction is completely submerged.
In-line strainers/filters are only recommended for pumps fitted with Minipress,
PressControl or WaterSwitch. Regular maintenance is required to keep them
clean and provide maximum pump pressure.
Consult your Onga dealer for information regarding the suitability of each
SMH pump in an automatic pressure system prior to installation.
7. Discharge
The length and diameter of the discharge hoses/pipes will affect the pressure
and flow rate at which your pump operates. Pressure ratings of all components
must exceed the maximum pressure of the pump by an appropriate safety
factor. All pipework should be supported independently of the pump.
8. Pump Priming
Ensure that there is at least 200mm of water in your tank, (i.e. that the tank
outlet is covered, and the pump will not draw any air into the system). Open the
gate valve on the tank. Check for any leaks, and repair these if necessary.
If no leaks are present, remove the priming plug to open the priming port on
the top of the pump case.
If the tank is above the level of the pump, water will start to run out of this
port. Replace the priming plug carefully. Your pump is now ready to run.
(Note: If a check valve is installed in the suction line, water may not fill the
pump. If this occurs, follow the instructions below).
If the tank water level is below the level of the pump, you will need to fill the
pump body and suction line. Remove the priming plug and fill the pump body
and suction line using a funnel.
9. Electrical
The pump is supplied with a interconnection appliance coupler and standard
Australian 10 Ampere plug and cord. Connection to the power supply is a
9
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