Submersible Borehole Pump 100mm (4”) SERIES J Installation and Operating Instructions WARNING : The pump and associated pipework operate under pressure. Under no circumstances should the pump or associated pipework be disassembled unless the internal pressure of the unit has been relieved. Failure to observe this warning will expose persons to the possibility of personal injury and may also result in damage to the pump, pipework or other property.
Installation & Operating Instructions It is important that all submersible borehole pumps be installed by experienced persons and that all electrical connections comply with the relevant electrical supply authority requirements. The electrical connections and checks must be made by a qualified electrician and comply with applicable local standards. These instructions are provided for guidance only, and assume a familiarity with submersible pump installation and commissioning procedures.
- Where supplied, fit the stainless steel suction strainer. Replace the check valve or check valve poppet and retainer. CAUTION: BE SURE THE MOTOR KW SIZE IS EQUAL TO (OR EXCEEDS) THE MOTOR KW REQUIRED FOR THE PUMP. Ensure the motor voltage & phase matches the supply voltages & phase. Installation NOTE: 1. FOR SEALING OF PIPE THREADS ONTO YOUR DAVEY SUBMERSIBLE BOREHOLE PUMP USE THREAD TAPE ONLY. DO NOT USE PIPE SEALING COMPOUND AT ALL.
5. Pressure System Installation and Pump Controls Davey submersible borehole pumps may be used as a pressure system in conjunction with pressure tanks providing a suitable draw off capacity. When selecting a pressure tank, make sure that the rated tank pressure is at least 10% greater than the pump pressure at the bore head. Also make sure that the tank draw off capacity is large enough to limit the pump’s starts to an absolute maximum of those relevant to the motor used.
Davey supply a range of control boxes incorporating various switching devices and the use of these products is recommended. Alternative systems may be connected directly into the supply line to 240 volt motor control boxes, provided the switching device used has an adequate current rating. If the current rating of the switch is not adequate, a contactor must be wired into the supply and the switching device used to control the contactor’s coil.
When the unit is connected and operating the phase balance should be checked. This should be within the 5% variation. “Rolling” the leads may help to improve a small unbalance, but major phase unbalance will usually be attributable to an input power unbalance. This must be addressed before the pump is used. 9. Earthing single and three phase pumps All pump motors are equipped with an earth lead which must be connected to the earth of the incoming power supply.
Operation and maintenance The pump must not be operated with the delivery valve shut off (closed head) for more than a few seconds otherwise the motor will overheat, possibly causing permanent damage, not covered by guarantee While Davey submersible pumps do not require regular maintenance, it is a good practice to monitor the conditions and performance of the pump and motor.
Installation record: To assist you and Servicing Personnel in the future, fill in all details below and retain with this booklet. Bore Details (this information should be provided by your driller). ID of casing: .............................. in/mm Length cased: .............................. metres Depth of bore: .............................. metres Slotted casing at what depths? ..........................................................................................
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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 difficulties with your Davey product, we suggest in the first instance that you contact the Davey Dealer from which you purchased the Davey product.
Davey Water Products Pty Ltd Member of the GUD Group ABN 18 066 327 517 AUSTRALIA NEW ZEALAND Davey Support Centre 6 Lakeview Drive, Scoresby, Australia 3179 Ph: 1300 367 866 Fax: 1300 369 119 Website: davey.com.au Davey Support Centre 7 Rockridge Avenue, Penrose, Auckland 1061 Ph: 0800 654 333 Fax: 09 527 7654 Website: daveynz.co.nz ® Davey is a registered trademark of Davey Water Products Pty Ltd. © Davey Water Products Pty Ltd 2013.
