Davey JY Series Bedienungsanleitung

Installation and

Operating Instructions

for Davey

JY Jet Pumps

High Pressure Transfer Pump

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

Congratulations on your purchase of a high quality, Davey high pressure water transfer pump. All components have been

designed and manufactured to give trouble free, reliable operation.

Delivery outlet - 1” BSP(M)

Suction inlet - 1” BSP(F)

Pump body

Motor

Priming port and plug

Drain port and plug

Choosing a Site

Choose a site with a firm base and as close to the water source as possible with correct power supply.

pump is always connected to an adequate, reliable source of clean water.

Make sure your

Housing your Davey JY Jet Pump

To protect your pump from the weather, make sure the cover provided is water proof,

frost free and has adequate ventilation.

The pump should be horizontally mounted on a firm base allowing for drainage, to

avoid damage to flooring etc., that over time may occur from leaking pipe joints or

pump seals. Do not mount the pump vertically.

Pipe Connections

For best performance use P.V.C. or polythene pipes at least the same diameter as the pumps inlet and delivery outlet

openings. Larger diameter pipe may be used to minimise resistance to flow when pumping longer distances.

Use unions as pipe connections to enable easy removal and servicing. Use sufficient tape to ensure airtight seal and hand

tighten only. To prevent strain on pump threads always support heavy inlet and outlet pipes. If there is a likelihood the

water supply may contain solid particles such as pieces of plant or vegetable matter, a suction strainer should be installed

before the pump to avoid blocking of the pump. Lay suction pipe at a constant gradient to avoid air pockets which reduce

pump efficiency.

Installations with a Suction Lift

Installations with a suction lift over 1 metre require a good quality foot valve to avoid loss of prime.

Installations with Flooded Suction

Installations with flooded suction require a gate valve so water supply can be

turned off for pump removal and servicing.

NOTE - Suction leaks are the largest cause of poor pump performance and are difficult to detect. Ensure all

connections are completely sealed USING THREAD TAPE ONLY.

EARTH CONNECTION

The pump power lead includes an earth wire which MUST be correctly connected to a suitable earth on the

electrical supply.

POWER CONNECTION

Connect lead to power supply designated on pump label. Do not use long extension leads as they cause

substantial voltage drop, poor pump performance and may cause motor overload.

Before installing your new pump, please read all instructions carefully as failures caused by incorrect installation or

operation are not covered by the guarantee. Your JY Jet Pump is designed to handle clean water. The pump should not be

used for any other purpose without specific referral to Davey. The use of the pump to handle flammable, corrosive and

other materials of a hazardous nature is specifically excluded.

Abrasive Materials

The pumping of abrasive materials will cause damage to the pump which will then not be covered by the guarantee.

Connection of Mains Scheme or Town Water Supply to either Suction or

Discharge of Pump

Most Water Supply Authorities have strict regulations regarding

direct connection of pumps to mains water supplies. In most

cases an isolating tank is required between mains supply and

pump. Davey also recommend this method. Directly applied

mains pressure can exceed pump operating pressure and

damage pump.

Davey Products Pty Ltd cannot accept

responsibility for loss or damage resulting from

incorrect or unauthorised installations.

Priming and Operation

Fill pump and suction line through the pump discharge or priming port (on flooded suction, simply open

gate valve to pump).

Ensure outlet nearest to pump is open.

Ensure all valves in suction line are open and switch on pump at power outlet.

Prime should establish almost immediately and a strong flow of water should be evident from

the outlet. Allow water to flow for 10-20 seconds to expel air then close outlet and switch off

pump.

If no flow is evident from tap, switch off at power point and repeat from step 1 ensuring there is an

adequate supply of water available to the pump.

Trouble Shooting Check List

MOTOR DOESN’T START WHEN SWITCHED ON

Power not connected.

Supply voltage too low.

“Over temperature” cut-out tripped.

Motor not free to turn e.g. a jammed impeller.

Internal motor fault.

NOTE - If connecting your JY Jet Pump direct to mains water, the casing pressure (maximum outlet pressure)

must not exceed 600kPa (6bar/87psi).

Water temperature in pump must not exceed 45oC, or damage caused will not be covered by guarantee.

WARNING

DO NOT RUN DRY.

DO NOT RUN WITH LOSS OF PRIME.

DO NOT PUMP WATER CONTAINING ABRASIVE MATERIALS.

Trouble Shooting Check List

MOTOR RUNS WHEN SWITCHED ON BUT DOES NOT PUMP

Suction line and pump body not filled with water.

Air leaks in suction lines or suction pipe not under water.

Air trapped in suction lines (also possible with flooded suction due to uneven rise in piping; eliminate humps and

hollows).

No water at source or water level too low.

Valve on suction lines closed.

PUMP DOESN’T SUPPLY ADEQUATE PRESSURE

Suction lift is too high.

Pump impellers partially blocked.

Jet blocked.

Partially blocked suction line.

Wrong pump selected.

Change the installation.

After Sales Service

For professional after sales service or repair contact your Davey Dealer.

For assistance in locating your nearest dealer contact the Davey International Sales Office.

Care should also be taken when servicing or disassembling pump to avoid possible injury from hot

pressurised water. Unplug pump, relieve pressure by opening a tap on the discharge side of the pump and

allow any hot water in pump to cool before attempting to dismantle.

WARNING - When servicing or attending pump, always ensure power is switched off and lead unplugged.

Electrical connections should be serviced only by qualified persons.

NOTE: For protection, the pump motor is fitted with an automatic “over temperature” cut-out. Constant

tripping of this overload device indicates a problem e.g. low voltage at pump, excessive temperature

(above 50oC) in pump enclosure.

In accordance with AS/NZS 60335.2.41 we are obliged to inform you that this pump is not to be used by

children or infirm persons and must not be used as a toy by children.

During servicing, use only approved, non-petrochemical based o-ring and gasket lubrication. If unsure, consult

your Davey Dealer for advice.

AUSTRALIA

Head Ofﬁce

6 Lakeview Drive,

Scoresby, Australia 3179

Ph: 1300 232 839

Fax: 1300 369 119

Email: [email protected]

Website: davey.com.au

Davey Water Products Pty Ltd

Member of the GUD Group

ABN 18 066 327 517

NEW ZEALAND

7 Rockridge Avenue,

Penrose, Auckland 1061

Ph: 0800 654 333

Fax: 0800 654 334

Email: [email protected]

Website: daveynz.co.nz

EUROPE

ZAC des Gaulnes

355 Avenue Henri Schneider

69330 Meyzieu, France

Ph: +33 (0) 4 72 13 95 07

Fax: +33 (0) 4 72 33 64 57

Email: [email protected]

Website: daveyeurope.eu

INTERNATIONAL

Australian Head Ofﬁce

Ph: +613 9730 9124

Fax: +613 9753 4248

Email: [email protected]

Website: davey.com.au

® Davey is a trademark of Davey Water Products Pty Ltd. © Davey Water Products Pty Ltd 2017.

NORTH AMERICA

Ph: +1 866 328 7867

Email: [email protected]

Website: daveyusa.com

MIDDLE EAST

Ph: +971 50 6368764

Fax: +971 6 5730472

Email: [email protected]

Website: daveyuae.com

400250-1

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