Davey 165S SHALLOW WELL PRESSURE PUMPS & SYSTEMS - Manual (Page 2)

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 office as listed on the back of this document.
summary of Installation procedure
For automatic operation as a pressure system with supercell Base Mounted pressure tank
(1)
Place tank next to pump as shown on the front of these instructions.
(2) Connect Davey tank hose to bottom of discharge tee and tighten by hand (no thread sealant required).
(3) Fit a gate valve to the 1 1 /
4
” outlet.
(4) Fit suction line complete with check valve or foot valve.
(5) Fit discharge line.
(6) Fit pressure gauge (supplied with pump) at top of pump.
For automatic operation as a pressure system with supercell top Mounted tank
(1)
Fit a Davey three way tee piece (P/No 48638) into the priming hole on top of the pump. Ensure adequate thread tape is
used.
(2) Screw the Supercell pressure tank into the top of the three way tee using thread tape.
(3) Perform steps (3) through to (5) above.
(4) Fit the pressure gauge/priming plug to the horizontal outlet on the three way tee.
For Manual operation
(1)
Disconnect pressure switch tube by undoing tubing nuts at outlet of pump and at pressure switch.
(2) Tighten the cap on the bottom of the discharge tee.
(3) Fit a gate valve to the 1 1 /
4
” outlet.
(4) Connect suction pipe complete with check valve or foot valve.
(5) Connect discharge pipe.
(6) Fit pressure gauge (supplied with pump) at top of pump.
Housing Your pressure pump system
For best performance position the Pressure Pump as close to the water source as practical.
As the pump is an electrical apparatus, it must be protected from the weather, at the same time adequate ventilation must
be provided for the motor. 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 ‘build-up of condensation. Failure to protect your pump from weather as
above may cause damage not covered by Guarantee.
The pump should be mounted on a firm base high enough to prevent any surface water 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.
Water Quality
Your Davey pump is made from food safe materials, and tested using sanitised water. Davey has no control over your pump
once it leaves our warehouse.
For potable (drinking) water applications we recommend that you flush the pump with clean water prior to use.
pipe selection
suction piping
Polythene pipe is recommended for the pump suction as it provides flexibility, reduces the transmission of pump noises and
provides a convenient method of disconnecting the pump without unions or the need to cut into the piping.
Total suction head consists of the actual vertical height lift from the water level up to the pump inlet connection, PLUS the
frictional resistance of the suction piping and fittings. For best performance, position the pump as close to the water source as
practical.
To reduce pipe friction and maximise flow, we recommend the use of Suction Pipe Sizes for lengths indicated in the table below.
These pipe sizes are based on the Static Suction lift (vertical lift) being no more than 6m (20 ft.). For more detailed advice and
information regarding pipe sizes for longer suction situations or greater suction lifts please contact your Davey dealer or the
Davey Customer Service Centre.
WARNING: Some insects, such as small ants, find electrical devices attractive for various reasons. If your pump
enclosure is susceptible to insect infestation you should implement a suitable pest control plan.
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