PENTAIR 112/252, 14, 18 Series Hi-Flo Centrifugal Pumps User Manual

PENTAIR 112/252, 14, 18 Series Hi-Flo Centrifugal Pumps

RELAX – YOU’ VE BOUGHT AN ONGA…

Congratulations on your decision to purchase an Onga product.
Onga is one of the best known brands in its field, with a proud local and International reputation.
Onga is a brand for reliability, value for money and technological innovation.

So why does Onga lead its field? Here`s a few simple reasons:

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.

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.

You`ll find an Onga product wherever people need to move water in 3 broad markets covering:

• Technologically advanced solutions for moving and treating water in the Home, Garden and Pool.
• Innovative Stock & Crop water management solutions for Primary Industries.
• Water movement products for building services, emergency services and original equipment manufactures

IMPORTANT!
The operator must be provided with this owner’s manual.
This must be read before operation and followed during operation.
These instructions are a guide only.
Users not familiar with pumping equipment should seek advice from people with experience in pump installation.

Technical Data

Maximum Fluid Temperature:
Maximum Ambient Temperature:| 70 oC
55 oC

READ AND FOLLOW SAFETY INSTRUCTIONS!

This is the safety alert symbol.
When you see this symbol on your pump or in this manual, look for one of the following signal words and be alert to the potential for personal injury:

• DANGER warns about hazards that will cause serious personal injury, death or major property damage if ignored.
• WARNING warns about hazards that can cause serious personal injury, death or major property damage if ignored.
• CAUTION warns about hazards that will or can cause minor personal injury or property damage if ignored.
• The label NOTICE indicates special instructions which are important but not related to hazards.
• Carefully read and follow all safety instructions in this manual.

Electrical Safety

• Wire motor for correct voltage. See ‘Electrical’ section of this manual and motor label.
• Ground motor before connecting to power supply.
• Meet National or local electrical code for all wiring.

CAUTION
Do not touch an operating motor.
Modern motors are designed to operate at high temperatures.
To avoid burns when servicing pump, allow it to cool for at least 20 minutes after shut-down before handling.

General Safety

• To avoid heat build-up, over pressure hazard and possible injury, do not use in a pressure tank (domestic water) system.
• Do not use as a booster pump; pressurized suction may cause pump body to explode.
• Do not allow pump or piping system to freeze.
• Freezing can damage pump and pipe, may lead to injury from equipment failure and will void warranty.
• Pump water only with this pump.
• Periodically inspect pump and system components.
• Wear safety glasses at all times when working on pumps.

INSTALLATION

1. Preparation for operation
   Read these instructions 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.

2. Pump Protection
   Warranty of these pumps is void unless they are housed correctly and protected from weather, floods, chemicals, dust, vermin, insects etc. Housing used should be weather proof and well vented so that motor heat can escape. To obtain best performant repumps should be installed as close to water as possible. Depending on application they do not have to be bolted down.

3. 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.

4. Suction
   Suction should be laid so that it rises evenly from water source to pump. This makes priming easy and avoids airlocks.
   Pipes should be the same size or larger than the pump inlet and discharge threads. If piping is longer than 15m (50ft) then a pipe fiction table should be consulted to obtain the correct size.
   All pipe joints must be sealed to ensure they are airtight and a foot or check valve must be used in the suction pipe. If using a check valve make sure that it is installed in correct direction.

5. Discharge
   The length and diameter of the discharge hoses or pipe will effect 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.

CAUTION
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.

Reduction of Capacity with Centrifugal Pump Suction

Total Suction Head| Percentage

of Rated Capacity

---|---
Feet| Metres
10| 3.0| 80%
15| 4.6| 70%
20| 6.1| 57%

Pl ease note. Reduction of capacity affects both flow and pressure.

ELECTRICAL

• Disconnect power to motor before working on pump or motor.
• Ground motor before connecting to electrical power supply. Failure to ground motor can cause severe or fatal electrical shock hazard.
• Do not ground to a gas supply line.
• To avoid dangerous or fatal electrical shock, turn OFF power to motor before working on electrical connections.
• Supply voltage must be no lower than 6% or no higher than 10% of motor label voltage. Incorrect voltage can cause fire or damage motor and voids warranty. If in doubt consult a licensed electrician.
• If possible, connect pump to a separate branch circuit with no other appliances on it.
• An earth leakage or residual current protection device must be fitted to all installations, rated residual operating current not exceeding 30mA.
• A voltage surge protector should be fitted as voltage spikes or incorrect voltage can cause fire or seriously damage the motor.

Install, ground and maintain this pump in accordance with electrical code require-ments. Consult your local building inspector for information about codes.

Provide a correctly fused Residual Current Device or Earth Leakage Device for protection while working on motor. Consult local or national electrical codes for switch requirements.

Disconnect power before servicing motor or pump. If the RCD or Earth Leakage device is out of sight of the pump, lock it open and tag it to prevent unexpected power application.

Make ground connection to green grounding terminal under capacitor cover lid marked and/or E.

230 volt single phase motors are supplied as standard with on winding thermal overload protection and are designed to plug directly into a 10 amp (GPO) domestic power supply to local electrical authority specifications.

If service is required to the power lead, it must be replaced with the appropriate specialized power lead assembly.
Warranty is void if unauthorized modifications are made to any component.
Protect current carrying and grounding conductors from cuts, grease, heat, oil, and chemicals.

WARNING
Motor has automatic internal thermal overload protection. If motor has stopped
for unknown reasons, thermal overload may restart motor unexpectedly, which could cause injury or property damage.
Disconnect power before servicing motor.
If any of the preceding is confusing, consult a licensed electrician.

OPERATION

Priming the Pump (Suction lift installations)
NOTICE: ‘Priming’ refers to the pump expelling all air in the system and beginning to move water from its source out into the system. It does not
refer only to pouring water into the pump (although pouring water in is usually the first step).
NOTICE: NEVER run pump dry. Running pump without water in it will damage seals and can melt impeller, diffuser and seal plate. To prevent damage, fill pump with water before starting.

1. Remove priming plug (located on top of the pump casing).
2. Make sure discharge valve(s) and any hoses on discharge side of the pump are open.
3. Fill pump and suction pipe with water.
4. Replace priming plug, using Teflon tape on thread; tighten plug. NOTICE: If a priming tee and plug have been provided for a long horizontal run, be sure to fill suction pipe through this tee and replace plug. (Don’t forget to Teflon tape the plug.)
5. Start pump: water should be produced in 10 minutes or less, the time depending on depth to water (suction lift not more than 6 metres) and length of horizontal run.

If no water is produced within 10 minutes, stop pump, release all pressure, remove priming plug, refill and try again.

Warning
Hazardous pressure and risk of explosion and scalding. If pump is run continuously at no flow (that is, with discharge shut off or with-out priming), water may boil in pump and piping system. Under steam pressure, pipes may rupture, blow off fittings or blow out of pump ports and scald anyone near.

To prevent explosion, do the following:

1. Ensure discharge (valve, hose nozzle, etc.) is open whenever pump is running.
2. If pump fails to produce water when attempting to prime, release all pressure, drain pump and refill with cold water after every two attempts.
3. When priming, monitor pump and piping temperature. If pump or piping begin to feel warm to the touch, shut off pump and allow system to cool. Release all pressure in system and refill pump and piping with cold water.

SERVICE & MAINTENANCE

This centrifugal pump requires little or no regular service other than reasonable care and periodic cleaning.
Occasion-ally, however, a shaft seal may become damaged and must be replaced.
The procedure as outlined below will enable you to replace the seal.

caution
Liquid may be HOT, release pressure before servicing.
NOTICE: The highly polished and lapped faces of the seal are easily damaged.
Read instructions and handle the seal with care.

REMOVAL OF OLD SEAL

1. After unscrewing impeller, carefully remove rotating part of seal by prying up on sealing washer, using two screwdrivers (see Figure A). Use care not to scratch motor shaft.
2. Remove seal plate (baffle) from motor and place on flat surface, face down. Use a screwdriver to push ceramic seat out from seal cavity (see Figure B).

INSTALLATION OF FLOATING SEAL

(Figure C)

1. Clean polished surface of floating (ceramic) seat with clean cloth.
2. Turn seal plate over so seal cavity is up; clean cavity thoroughly.
3. Lubricate outside rubber surface of ceramic seat with silicone based lubricant, ensuring no lubricant gets on the polished ceramic wear face, and press firmly into seal cavity with finger pressure. If seat will not locate properly in this manner, place a cardboard washer over polished face of seal and press into seal cavity using a ½” 13mm socket or 13mm piece of standard pipe.
4. Dispose of cardboard washer. If need ensure polished surface of seal seat is free of dirt and has not been damaged during insertion. Remove any excess lubricant that may have been dislodged during insertion and ensure that there is no lubricant on the polished face of the seal.

INSTALLATION OF ROTATING PART OF SEAL UNIT

(Figure D)

1. Clean face of sealing washer with clean cloth.
2. Reinstall seal plate using extreme caution not to hit ceramic portion of seal on motor shaft.
3. Inspect shaft to ensure that it is clean.
4. Lubricate outer face of rubber drive ring with silicone-based lubricant, ensuring no lubricant touches the polished face, and slide assembly on motor shaft (sealing/polished face first) until rubber drive ring hits shaft shoulder (ensure that the polished face does not hit the motor shaft).
5. Screw impeller on shaft until impeller hub hits shaft shoulder. This will automatically locate seal in place and move the sealing washer face up against the facing seat.

Should you have any difficulty replacing the seal unit please contact your local pump professional.

caution
Liquid may be HOT, release pressure before servicing.

caution
Pump should only be serviced by qualified personnel. Make sure to prime pump before operating. NEVER run pump dry!

caution
If the supply cord is damaged, it must be replaced by the manufacturer or an authorized service agent.

Troubleshooting Guide

water. Refer priming

instructions.

| | Make sure there are no leaks in suction piping.

Thermal Overload tripping: The thermal overload is automatic and resets after the pump has cooled.

If thermal continues to trip there is something wrong with the pump.

| | Make sure suction pipe inlet is well below the water level to prevent pump from

sucking air.

Suction lift of 3 to 6 meters will reduce performance. Suction lift of more than 6 meters will prevent pumping and cause pump to lose prime. In either instance, move the pump closer (vertically) to water source. Ensure the suction pipe diameter is large enough.
| Clogged pipe / impeller, worn impeller.| Make sure that the impeller is not clogged. This should be checked by qualified personnel only.
| | Impeller and diffuser may be worn. If so, check with your local Onga dealer or suitably qualified personnel.
| | Pump may be trying to push too high a column of water. If so, a “higher head” pump is required.
| No power at outlet.| Use another electrical appliance that is known to work to check the power outlet.
| Blown fuse.| Check fuse and replace if necessary.
| Incorrectly sized pipe.| Check pipe work pressure losses and replace with larger diameter pipe if required.
| Motor burnt out due to voltage spike or flooded by water.| The motor may need replacing.
| Valves turned to the closed position.| Check the plumbing to ensure the valves are in the correct position for pumping on the suction and discharge.
| Air ingress to system| Prime the pump. Check that there are no air leaks in the suction piping or fittings.
Check that there are no leaks coming from beneath the

pump.

at meter while pump is running – this check should be performed by a qualified electrician only. If voltage is low check for loose connections or consult

your power company.

Pump may be too hot.| Check line voltage; if less than 90% or more than 110% of rated voltage consult a licensed electrician.

Increase ventilation. Reduce ambient temperature.

Tighten any loose

connections.

Pump leaking from between the casing and motor.| Casing bolts are not tightened sufficiently; Casing O’ring is worn; Mechanical seal requires replacing.| Switch off the power to the pump. Loosen the casing bolts. Check the alignment and condition of the casing o’ring before retightening the bolts. Replace the o’ring if leaking persists.

Replace the mechanical seal.

No water.| Pump not running.| Check power supply.
Gate valve closed.| Open gate valve.
Pump runs but no water.| Air leak in suction pipe.| Check suction pipe.
The pump has not been filled with water.|
Water has evaporated leaving the pump dry.|
Foreign matter has clogged the impeller.|
Pump will not prime.| Foot valve leaking.| Check foot valve for seal, fix or replace if necessary.
Air lock.| Check suction line for ‘humps’. Have your local pump professional prime the pump with an engine drive

pump to score air from lines.

Water source has been drawn down so that suction

is above the water line.

| Check suction is submerged.

Should problems persist, contact your nearest Onga service agent.

REPAIR PARTS LIST

Drawings are indicative only, product appearance may change slightly.

REF

No.

| DESCRIPTION| PART. NO| PART. NO| PART. NO| PART. NO| PART. N
---|---|---|---|---|---|---
1| CASING & STUD ASSY.| 800283| 1PC| 800283| 1PC| 800283| 1PC| 800283| 1PC| 800283| 1PC
2| STUD (PK/10)| 800113| 1PC| 800113| 1PC| 800113| 1PC| 800113| 1PC| 800113| 1PC
NS| ADAPTOR| 504280| 1PC| 504280| 1PC| –               1PC| – 1PC| –                 1PC
NS| ORING CASING SPIGOT| 702231| 1PC| 702231| 1PC| –               1PC| – 1PC| –                 1PC
3B| ORING ADAPTOR SPIGOT| 702203| 1PC| 702203| 1PC| –               1PC| – 1PC| –                 1PC
3C| ORING DIFFUSER| –               1PC| –               1PC| 702192| 1PC| 702192| 1PC| 702192| 1PC
4| DIFFUSER| 301431K| 1PC| 301481K| 1PC| 301884| 1PC| 301884| 1PC| 301941| 1PC
5| SHAFT SLEEVE KIT| 800895K| 1PC| 800895K| 1PC| 801007K| 1PC| 1PC| 801007K| 1PC
6| YOKE| 301650GN| 1PC| 301650GN| 1PC| 301650GN| 1PC| 302010GN| 1PC| 301650GN| 1PC
7| BOLT & BOLT SEAL (PK/12)| 800242K| 1PC| 800242K| 1PC| 800242K| 1PC| 800242K| 1PC| 800242K| 1PC
8| ORING CASING| 700207K| 1PC| 700207K| 1PC| 700207K| 1PC| 700207K| 1PC| 700207K| 1PC
9| BAFFLE| 401322| 1PC| 401323| 1PC| –               1PC| – 1PC| 401322| 1PC
10| SEAL KIT (INC. SEAL + ITEM 5)| 800890K| 1PC| 800890K| 1PC| 800890K| 1PC| 800871K| 1PC| 800890K| 1PC
11| IMPELLER – 1PH| 506353K| 1PC| 503843K| 1PC| 403976K| 1PC| – 1PC| 504413| 1PC
IMPELLER – 3PH| 506353K| 1PC| 503849K| 1PC| 403979K| 1PC| 404036| 1PC| 504413| 1PC
12| NUT (PK/12)| 800093K| 1PC| 800093K| 1PC| 800093K| 1PC| 800093K| 1PC| 800093K| 1PC
13| PRIMING PLUG & ORING| 800017K| 1PC| 800017K| 1PC| 800017K| 1PC| 800017K| 1PC| 800017K| 1PC
NS| PLUG| 700230| 1PC| 700230| 1PC| 700230| 1PC| 700230| 1PC| 700230| 1PC
14| MOTOR – 1PH| 800445| 1PC| 800446| 1PC| 801350| 1PC| – 1PC| 800446| 1PC
MOTOR – 3PH| 800448| 1PC| 800449| 1PC| 800450| 1PC| 800451| 1PC| 800449| 1PC
15| BASE| 504290GN| 1PC| 504290GN| 1PC| 504290GN| 1PC| 504290GN| 1PC| 504290GN| 1PC
16| IMPELLER NUT (3PH)| 603250| 1PC| 603250| 1PC| 603250| 1PC| 603250| 1PC| 603250| 1PC
NS| WASHER (PK/20)| 800151| 1PC| 800151| 1PC| 800151| 1PC| – 1PC| 800151| 1PC

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……………………

1-21 Monash Drive,
Dandenong South, Vic 3175

Australia
National Customer Service:

• Phone: 1300 137 344
• Fax: 1800 006 688
• Phone: 1800 664 266
• National Dealer Locator:
• Email: au.salesapentair.com 
• Web: www.pentair.com.au

Distributed in NZ By:
Freephone 0508 634 341
7 Monier Pl, Mt Wellington, Auckland 1060, New Zealand

Information contained here-in remains the property of Pentair Pty Ltd.
Any reproduction, display, publication, modification or distribution is strictly prohibited without the prior written permission of Pentair Pty Ltd.

Disclaimer: Pentair reserves the right to change product specifications and products details.
All product images are for reference purposes only and may not represent actual and/or current product.

No responsibility will be taken for errors, omissions or changes in product specifications.

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