Davey PRIME JET 240 PUMPS AND PRESSURE SYSTEMS User Manual

Davey® Repair or Replacement Guarantee

In the unlikely event in Australia or New Zealand that this Davey product develops any malfunction
within two years of the date of original purchase due to faulty materials or manufacture, Davey will at
our option repair or replace it for you free of charge, subject to the conditions below.

Should you experience any difculties with your Davey product, we suggest in the rst instance that
you contact the Davey Dealer from which you purchased the Davey product. Alternatively you can
phone our Customer Service line on 1300 367 866 in Australia, or 0800 654 333 in New Zealand, or
send a written letter to Davey at the address listed below. On receipt of your claim, Davey will seek to

resolve your difculties or, if the product is faulty or defective, advise you on how to have your Davey

product repaired, obtain a replacement or a refund.

Your Davey Two Year Guarantee naturally does not cover normal wear or tear, replacement of product
consumables (i.e. mechanical seals, bearings or capacitors), loss or damage resulting from misuse
or negligent handling, improper use for which the product was not designed or advertised, failure to
properly follow the provided installation and operating instructions, failure to carry out maintenance,
corrosive or abrasive water or other liquid, lightning or high voltage spikes, or unauthorized persons
attempting repairs. Where applicable, your Davey product must only be connected to the voltage
shown on the nameplate.

Your Davey Two Year Guarantee does not cover freight or any other costs incurred in making a claim.
Please retain your receipt as proof of purchase; you MUST provide evidence of the date of original
purchase when claiming under the Davey Two Year Guarantee.

Davey shall not be liable for any loss of prots or any consequential, indirect or special loss, damage

or injury of any kind whatsoever arising directly or indirectly from Davey products. This limitation
does not apply to any liability of Davey for failure to comply with a consumer guarantee applicable to
your Davey product under the Australian or New Zealand legislation and does not affect any rights or
remedies that may be available to you under the Australian or New Zealand Consumer Legislation.

In Australia, you are entitled to a replacement or refund for a major failure and for compensation for
any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired
or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major
failure.

INSTALLATION AND OPERATING INSTRUCTIONS

PRIME JET 240

PUMPS AND PRESSURE SYSTEMS

Please pass these instructions on to the operator of this equipment.

Should your Davey product require repair or service after the guarantee period; contact your nearest
Davey Dealer or phone the Davey Customer Service Centre on the number listed below.

For a complete list of Davey Dealers visit our website (davey.com.au) or call:

AUSTRALIA

Customer Service Centre

6 Lakeview Drive,
Scoresby, Australia 3179
Ph: 1300 367 866
Fax: [phone]
Website: davey.com.au

Davey Water Products Pty Ltd
Member of the GUD Group
ABN 18 066 327 517

® Davey is a registered trade mark of Davey Water Products Pty Ltd.
© Davey Water Products Pty Ltd 2011.

* Installation and operating instructions are included with the product when purchased new.

They may also be found on our website.

NEW ZEALAND

Customer Service Centre

7 Rockridge Avenue,
Penrose, Auckland 1061
Ph: 0800 654 333
Fax: [phone]
Website: daveynz.co.nz

P/N 48122-9 supersedes P/N 48122-8

Read All Instructions Before Installing Your New Prime Jet

These instructions have been prepared to acquaint you with the correct method of installing and
operating your Prime Jet Pressure System. We urge you to study this publication carefully and

follow its recommendations. If you have any installation difculties or need further advice you

should contact the Davey dealer from whom you purchased the system or the Davey Customer
Service Centre.

Prior to using this pump you must ensure that:

• The pump is installed in a safe and dry environment

• The pump enclosure has adequate drainage in the event of leakage

• Any transport plugs are removed

• The pipe-work is correctly sealed and supported

• The pump is primed correctly

• The power supply is correctly connected

• All steps have been taken for safe operation
Appropriate details for all of these items are contained in the following Installation and Operating

Instructions. Read these in their entirety before switching on this pump. If you are uncertain as

to any of these Installation and Operating Instructions please contact your Davey dealer or the
appropriate Davey ofce as listed on the back of this document.

INTRODUCTION

Davey Prime Jet Pumps and Water Pressure Systems have been designed to operate with one of
two alternative suction arrangements, these are:–

Shallow Well Injector for surface water Deep Well Injector for bore holes and/or deep

or shallow wells up to 7.5m (25ft) deep OR wells up to 50m (164ft) deep.

The use of this product to pump

ammable, corrosive and other

materials of a hazardous nature is

specically excluded.

TROUBLE SHOOTING

1. PUMP NOT DELIVERING WATER OR NOT BUILDING UP PRESSURE:

May be caused by one or more of the following:
a. Pump not properly primed;

b. Footvalve or checkvalve not installed or leaking;
c. Footvalve not installed below water level;

d. Suction lift too high;
e. Suction piping not correctly sealed or holed allowing air to enter pump suction;

f. Check valve installed in wrong direction;
g Blocked jet or venturi;

h. Piping connected in reverse on deep well, i.e. suction and pressure pipes transposed;

i. Motor thermal overload tripping - refer paragraph 3;
j. Insufcient water supply source;
k. Pressure system not switching on due to static delivery head causing higher pressure on

the pump than pressure switch cut-in.

2. PUMP NOT OPERATING AT MINIMUM OPERATING PRESSURE FOR DEEP WELL
INJECTOR:

a. Usually caused by air leaks in suction pipe.

3. MOTOR NOT RUNNING:

May be caused by one or more of the following :
a. Power failure;
b. Blown fuse;
c. Motor overload tripping;
d. Motor windings faulty.

HOUSING YOUR PRIME JET

To avoid damage to your Prime Jet pump or system which may not be covered by the
guarantee, ensure adequate protection from external atmospheric conditions. The
housing of the product should protect against freezing, rain, extreme heat or other

adverse weather conditions. Adequate ventilation must be provided for the motor,

however, do not enclose the pump in such a manner that a “hot box” condition is created.
Ventilation should be provided near the top of any enclosure to prevent a “buildup” of
condensation.

NOTE: For protection, the Davey pump motor is tted with an automatic “over
temperature” motor protection cut-out. Constant tripping of this overload device
indicates a problem eg. low voltage at pump, excessive temperature (above 45oC)

in pump housing / enclosure.

Your Prime Jet should be mounted on a rm base high enough to prevent any surface water that

may accumulate from coming into contact with the unit. Positioning of the unit should allow the
nameplate to be easily read and adequate access for service purposes. Install so that any water

which, over time, leaks from pipe connections or pump seals can drain away without damaging

surrounds.

NOTE: Pipes should be sealed correctly so that they do not leak. Seals should
not visibly leak - visible leaks may indicate seal failure. Contact your Davey

Dealer.

The power outlet may need to be provided by an electrician in a safe, dry place (possibly within the

weather proof enclosure). Prime Jet 240 1 phase, 220/250 units require a special 15 amp power

outlet.

INSTALLING A PRIME JET FOR SHALLOW WELL APPLICATIONS
(Where Total Suction Head is Less Than 7.5 Metres (25 ft.)

The Shallow Well Jet Kit is supplied separate from the pump or pressure system and includes a

rubber gasket. Place this rubber gasket over the 4 studs on the pump. Fit the jet assembly over
the studs on the pump and secure with the nuts and washers provided. Tighten nuts sufciently to
prevent air leaks around the gasket but do not over tighten.

- 2 - - 11 -

4. MOTOR THERMAL OVERLOAD TRIPPING:

May be caused by one or more of the following :
a. Low voltage supply;
b. Motor or pump seized;
c. Motor windings faulty.

5. PUMP (AUTOMATIC SYSTEM WITH TANK) SWITCHING ON AND OFF FREQUENTLY OR
WHEN NO TAPS TURNED ON:

May be caused by one or more of the following :

a. Footvalve or checkvalve not retaining pressure or water;
b. Water leaking from suction or delivery piping;
c. Ball valve in toilet cistern, hot water system, or stock troughs incorrectly set or faulty;
d. Pressure tank not retaining air pressure or air charge too high;
e. Motor thermal overload tripping - refer preceding paragraph.

6. PUMP (AUTOMATIC SYSTEM WITH TANK) NOT SWITCHING OFF OR TAKING TOO
LONG TO SWITCH OFF:

May be caused by one or more of the following :
a. Voltage supply too low;

b. Blocked jet or venturi;
c. Leak in discharge pipe or ttings, taps etc.;
d. Worn or blocked pump components impeller, casing etc.;

e. Drop in water level in water supply source.

SPARE PARTS

When ordering spare parts it is essential to give both pump model and motor type numbers from
nameplate, and the full description of part required.