onga Dominator 7535 User manual

OWNER’S MANUAL
Should 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.
For the Installation, Operation and Service of
Dominator Submersible
Pump
An earth leakage or residual current protection devide
must be fitted to all instructions

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 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.
2
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

3
Pentair Water Product Warranty
Pentair Water warrants that, when this product is used for the purpose it was designed, is correctly housed and vented against
weather, vermin, dust etc., that it will be free of material and manufacturing defects at the time of the original purchase.
This warranty is limited to the cost of the product and does not cover third party costs including the costs of
electricians, plumbers, etc. unless authorised by Pentair Water.
TERMS AND CONDITIONS APPLICABLE IN AUSTRALIA AND NEW ZEALAND
1) YOU SHOULD CAREFULLY READ THE INSTRUCTIONS SUPPLIED PRIOR TO USING THIS PENTAIR
WATER PRODUCT.
This product is to be installed and operated in accordance with the instructions provided.
This warranty will not apply if it is used in a manner other than in accordance with the instructions.
What the warranty covers:
Pentair Water warrants its products to be free of defects in material and workmanship during the warranty period.
If a product proves to be defective in material or workmanship during the warranty period, then Pentair Water will,
at its sole option repair or replace the product with a like product. Replacement product or parts may include
re-manufactured or refurbished parts or components.
How long the warranty is effective:
1) This Pentair Water product is warranted for 24 months for all parts from the date of the first
consumer purchase.
2) Where this Pentair Water product is sold for commercial application as defined in the relevant Trade
Practices and Consumer Protection legislation the warranty shall be for a period of six months from
the date of purchase by the end user.
3) Ancillary equipment including but not limited to plastics and metal fittings, electrical controls (including touch
pads), bladders, pressure switches, filter cartridges, pressure gauges, etc. shall be warranted for a period of
twelve months only in relation to consumer applications.
Who the warranty protects:
This warranty is valid only for the consumer purchaser.
What the warranty does not cover:
1) Damage, deterioration or malfunction resulting from:
a) accident, misuse, negligence, fire, water, lightning, or other acts of nature, unauthorised product
modification or failure to follow instructions supplied with the product;
b) repair or attempted repair by anyone not authorised by Pentair Water;
c) any damage to the product due to shipment;
d) removal or installation of the product;
e) causes external to the product such as electric power fluctuations or failure;
f) use of supplies or parts not meeting Pentair Water specifications;
g) normal wear and tear;
h) water ingression or exposure to abnormal corrosive conditions or “run dry” conditions;
i) any other cause which does not relate to a product defect.
2) Damage caused to the product as a consequence of use of another manufacturer’s product used in
conjunction with Pentair Water and affiliate companies.
3) This warranty does not cover such products as combustion engines, mechanical seals or other component
parts of units not manufactured by Pentair Water, but where possible Pentair Water will make available to
purchaser the benefit of any warranty of that manufacturer.
4) This guarantee does not cover underwater light bulbs, underwater lights will only be warranted if wiring is
to approved standards, and an approved transformer incorporating thermistors has been used, running the
light not submerged in water will void warranty.
5) Hydrostatic relief valve supplied separately or incorporated in products are sold with the express
understanding that such products offer limited hydrostatic relief and no offer is made or implied as to the
suitablity of such products for a specific application as their condition at the time of sale are unknown and
beyond Pentair Water’s control. It is the responsibility of the installer to ensure that the performance of the
valve meets the required application.
6) Swimming pools or spa equipment wil not be warranted where the Langelier Saturation Index ‘pH’ range
is outside 7.2 to 7.6 and they have not been regularly treated with chlorine or bromine based sanitising
systems, or other recognised sanitising systems
4
Spare Parts:
Spare parts are usually stocked for a reasonable period of time following last production.
Pentair Water does not warrant that spare parts will be made available for the whole of the reasonable
period and reserves its right to cease supplying spare parts or providing facilities for repair of spare parts in
circumstances which are beyond its control including the requirement to remove spare parts from sale as a
consequence of changes in the law or otherwise as it deems fit.
How to get service:
In Australia please contact 1800 664 266 In New Zealand please contact 0800 664 269
Claims under this warranty must give evidence of date of purchase, model and serial number of the product and the
claimants name, address and telephone number.
1) To obtain warranted service, you will be required to provide to either Pentair Water state office or
recommended service agent:-
a) the product;
b) confirmation in writing specifying the nature of your claim;
c) proof providing date of original purchase;
d) full contact details including name and address;
e) the serial number of the product if any.
2) The product is to be forwarded by the customer freight paid to Pentair Water.
Infield service by an authorised Pentair Water Service Agent will incur a travel, removal & reinstallation fee to
adjudicate on warranty issues. Authorised warranty will be free of charge for the first 12 month period from
date of the first consumer purchase.
3) Warranty service work will be denied or suspended, on equipment not readily accessible to service personnel,
that is products that are behind barriers, tiled or bricked in, installed in roofs or second story external walls
including inaccessible power points.
4) Any service of any product which is found to be faulty due to abuse, misuse or improper installation will be
charged to the owner at the service agents current servicing hourly rate.
Limitation of implied warranties:
THEREARE NO WARRANTIES, EXPRESSED OR IMPLIED, WHICH EXTEND BEYOND THE DESCRIPTION CONTAINED
HEREIN INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
Exclusion of damages:
PENTAIR WATER’S LIABILITY IS LIMITED TO THE COST OF REPAIR OR REPLACEMENT OF THE PRODUCT. PENTAIR
WATER SHALL NOT BE LIABLE FOR:
1) Damage to other property caused by any defects in the product, damages based upon inconvenience, loss
of use of the product, loss of time, loss of profits, loss of business opportunity, loss of goodwill, interference of
business relationships, or other commercial loss, even if advised of the possibility of such damage.
2) Any other damages, whether incidental, consequential or otherwise.
3) Any claim against the customer by any other party.
Effective law:
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Nothing in this warranty limits or restricts, or is intended to derogate from, any right or remedy which the purchaser
or ultimate user of the product may have pursuant to Australian state and/orAustralian federal consumer protection
legislation, New Zealand Sale of Goods Act, Consumer Guarantees Act, Fair Trading Act or any other relevant and
applicable New Zealand legislation or authority and where necessary shall so be read and construed.
TERMS AND CONDITIONS APPLICABLE INTERNATIONALLY
How long the warranty is effective Internationally
1) This Pentair Water product is warranted for 12 months for all parts from the date of the first consumer purchase.
Should any parts fail as a result of such defects within the specified period, the part will be replaced free of
charge. (This does not include travel charges, removal and reinstallation charges.)
Pentair Water Product Warranty (Continued)

Table of Contents Page
1. Warnings 4
2. Models and technical information 4
3. Application 4
4. Installation 4
• Preparation for operation
• Pump Protection
• Electrical connections
• Discharge
5. Operations 5
6. Service and Maintenance 6
7. Troubleshooting 7
8. Exploded diagram-internal parts
Warranty 10
1. Warnings
5 6
These instructions are a guide only. Users not familiar with pumping equipment should
seek advice from people experienced in pump equipment and installation.
The pump operator must be provided with this owner’s manual. This must be read before
operation and followed during operation.
Do not run the pump without liquid. Always ensure the pump is submerged before
operation. Do not allow the pump to continue running once the water supply is empty
The pump cannot be used to move inflammable or dangerous liquids
Isolate the pump electrically during installation or servicing
Do not operate the pump in an explosive enviroment or near combustible matter.
Make sure that there is a float switch or loss of prime switch that stops the
pump when the water supply is empty .

87
4. Installation continued...
c) Electrical connections
Ensure that the pump is disconnected from the power supply during
installation, or before moving or servicing the pump.
Dominator pumps are supplied with a unique Onga IEC weatherproof connector.
Your Dominator pump kit will have all the necessary electrical connections to allow
you to plug the electrical cord into a 10A General power outlet. The Dominator
pump has a double ground contact to this connection, the pump is grounded
when the plug is connected to a grounded power supply
The power cord is not a user servicable item. It must be replaced by the
manufacturer using special tools
The pump is supplied with an in-built thermal circuit breaker with automatic reset.
All electrical work must be carried out in accordance with local regulations.
The power supply must be fitted with a residual current device (earth leakage
protection) with sensitivity of 30mA or less.
d) Discharge
The length and diameter of the discharge lines will affect the pressure and flow
rate at which your pump operates. Care should be taken when selecting discharge
pipe/hoses and fittings. Pressure ratings of all components must exceed the
maximum pressure of the pump by an appropriate safety factor.
e) Dominator suction has been intentionally raised to alleviate sediment being
pumped. to raise this height further, use 3” PVC pipe and insert into specially
designed base.
5. OPERATION
Ensure that your pump is submerged before operating.
Connect discharge piping, and ensure that the suction is completely submerged.
Connect to power and pressure control device (if required).
Do not submerge the pressure control device (if installed).
Do not submerge the electrical connectors.
2. Models and Technical Information
Technical Data Model 7535 7556 11557
Inlet: Screen
Outlet: 1 1/4” BSP
Stages 5 8 8
Max Discharge Pressure (m) 35 56 57
Maximum immersion 20m
Minimum well diameter 100mm
Water temp range 2oC - 40oC
Max dimension of solids 2mm
Maximum amount of sand 50 g/m2
Max cycles per hour 30 (equally spaced)
Nominal power (kW) 0.6 0.75 1.1
Power Supply 230V - 1ø - 50Hz
Run amps (Amperes) 3.0 3.3 3.0
Capacitor (µF) 12.5 16 16
Optional accessories
Presscontrol Item Code 110680
Minipress Item Code 707125
3. Application
Dominators are multistage submersible pumps. They are suitable for use in clean
water without dissolved gasses. The pump components are suitable for use with
potable water.
4. Installation
a) Preparation for operation
Read these instructions first
Inspect your pump for shipping damage. Report any damage to your Pentair
Water dealer no later than 8 days from purchase date.
Ensure that the electrical supply has sufficient voltage and current capacity.
b) Pump Protection
Warranty of these pumps is void unless they are operated in accordance with this
owners manual. Avoid using an electrical cable to lift or transport the pump. Use the
nylon rope supplied or a stainless steel cable to support the pump. It is advisable to
connect the electrical cable to the delivery line at three metre intervals.
It is advisable to fit automatic level controls to prevent the pump running without
liquid, and a pressure gauge to verify operation.

9 10
7. Troubleshooting
Problem
The motor will not run, no
water is pumped
Possible cause
1) No power supply
2) Motor protection
tripped
3) Defective capacitor
4) Pump blocked
Suggested Solution
1) Check voltage at the
supply, and check that
the plug is connected
securley
2) Wait for internal
protection to reset.
3) Replace the capacitor.
4) Unblock the pump.
The motor runs, but no
water is pumped.
1) The pump is not
submerged.
2) The suction strainer is
blocked.
3) The check valve is
blocked
1) Check that the liquid
level has not dropped
below the minimum
level.
2) Clean the suction
strainer.
3) Clean or replace the
valve
The pump stops after
running for a short period
of time (Thermal over-
load)
1) The power supply is
unsuitable.
2) Solids are blocking the
pump.
3) The liquid is too thick.
1) Check the supply
voltage.
2) Have the pump
disassembled and
cleaned by an
authorised dealer.
3) See your dealer for an
alternate pump.
6. Service & Maintenance
Under normal conditions DOMINATOR submersible pumps do not require any
maintenance. In order to avoid possible failures, it is advisable to periodically check
the pressure supplied and the current absorption. A decrease in pressure is a
symptom of wear. An increase in current absorption is a sign of abnormal
mechanical friction in the pump and/or motor.
If the submersible pump is not going to be used for long periods of time it should be
emptied completely, rinced with clean water and stored in a dry place.
Cleaning the filter
If the water supply is not perfectly clean, it may be nessary to clean the strainer with a
steel brush to scrape the dirt accumulated on the external surface. It is also
possible to clean the internal section of the strainer.
Loosen the screw that fixes the strainer to the body of the electropump and remove it.
Scrape the dirt with a steel brush and rince it with clean water.
Always use origional service parts as supplied and recommended by Onga.
Failure to do so may void warranty.
Do not operate the unit without the inlet strainer
Pumping water containing solids will reduce the life of the pump,
and may affect warranty
If this is not sufficent, have the hydraulic parts cleaned by an authorised service
center.
Pumping chemicals or agricultural products voids warranty.
Do not pump hydrocarbons with this pump.
If the pump is not going to be used for a long period, it should be completely
emptied, rinsed with clean, fresh water, and stored in a dry place.

12
Ref Description Qty
1 Pump body 1.00
9 Diffuser # of Stages
13 Diffuser cap # of Stages
21 Impeller # of Stages
24 Mecanical seal 1.00
26 Flange ( Mechanical seal holder ) 1.00
29 Bearing 1.00
31 Snap ring ( Pump side ) 1.00
32 Shaft ( Including rotor ) 1.00
33 Case ( Including stator ) 1.00
36 Ring 1.00
46 Capacitor Holder 1.00
47 Capacitor 1.00
60 Screw ( Ground ) 1.00
61 Washer ( Ground screw toothed ) 1.00
62 Washer ( Ground screw plain ) 1.00
66 Screw (Cable gland) 2.00
79 Gasket ( Pump body ) 1.00
120 Filter 1.00
123 Ring ( Seal ) 1.00
126 Lubricant 1.00
127 O-Ring ( Lower bearing flange ) 1.00
128 Flange ( Lower bearing holder ) 1.00
129 Stator ( Single phase wound ) 1.00
130 Motor body 1.00
133 Bushing ( Ceramic ) 1.00
135 Flange ( Upper bearing holder ) 1.00
139 Screw ( Inspection ) 2.00
144 Cable ( Power ~ single phase w/grommet) 1.00
145 Base ( Filter ) 1.00
149 Flange ( Suction ) 1.00
159 O-Ring ( Cover ) 4.00
166 Washer ( Seal compression ) 1.00
167 Check Valve 1.00
177 Cover 1.00
230 Bearing ( Bronze ) 1.00
231 Snap ring 1.00
233 Snap ring 1.00
234 Ring ( Anti-wear ) # of stages minus 1
235 Snap ring ( Start up ) 1.00
240 Screw ( Wire cover ) 2.00
259 O-Ring ( Vent valve ) 1.00
358 Flange ( Cording clamp ) 1.00
11
7. Exploded diagram - Internal parts

14
Dominator Kit
Dominator Pump MiniPress
Presscontrol
WaterSwitch
D7535, D7556, D7557
or
DM7535, D7556
or
DP11557
or
DW7535, DW7556
13
OR
OR
OR
Installation Instructions
This quality Wall bracket has been designed to support the Onga Presscontrol or
Onga Minipress when they are remotely mounted from the pump. Various mounting
positions allow you to install this device thru 360 0 rotation and position the control
panel in view and with access.
Wall Bracket kit (Presscontrol/Minipress) Part Number 801447
Kit contents
1x Wall bracket
2x Fixing screws
Water Flow
Direction
Wall or post
Water Flow
Direction
Wall or post
Water Flow
Direction
Wall or post
Gap
(add spacer)
Controller
(not supplied)
W
a
(s
Screws
(supplied)
Hose Fitting
(not supplied)
House Wall
Use of Mounting Bracket
Where possible please mount Constant
Pressure Control Unit out of weather and
with control panel in vertical
Bracket Mounting Options
The control device must be
fitted vertically as shown on
diagram with arrow pointing
vertical for correct and reliable
function. Select the appropriate
mounting hole for your chosen
controller position.
Note: Depending upon the type of plumbing fitting
selected, the pressure control device may not
befirmly clamped to the wall bracket. We recommend
a spacer (not supplied) be fitted where necessary

IMPORTANT
Please attach your sales invoice/docket here as proof of purchase should warranty service
be required.
Please do not return Warranty - Retain for your records.
Purchased From ......................................................................................................................
Purchase Date..................................... Serial No.............................. Model No........................
L100165 0707
© information contained here-in remains the property of Pentair Water Pty Ltd. Any reproduction,
display, publication, modification or distribution is strictly prohibited without the prior written
permission of Pentair Water Pty Ltd.
Disclaimer: Every endeavour has been made to publish the correct details in this data sheet. No
responsibility will be taken for errors, omissions or changes in product specifications. Pentair Water
reserves the right to change specifications
Pacific Head Office
Australia Pentair Water Australia Pty Ltd
Notting Hill Victoria, Australia
Tel: [phone] Fax: [phone]
Email: [e-mail]
www.pentairwater.com.au
Pentair Water New Zealand Ltd
Penrose Auckland New Zealand
Tel: [phone] Fax: [phone]
Email: [e-mail]
Americas Pentair, Inc.
www.pentair.com
Europe Pentair Pumps S.p.A
www.pentairpumps.it
Asia China
www.pentairwater.com
India
www.pentairwater.com