Manual

6 7
Installationswithoodedsuctionrequireagateor
isolatingvalvesowatersupplycanbeturnedofffor
pumpremovalandservicing.
For Automatic Pressure
Pumps Installed with a Mains
Pressure Hot Water System
Toprotectyoursystemfromdamagecaused
bybackpressurefromhotwatersystems.You
shouldalwayshaveinstalledonthehotwater
inletanapprovednon-returnvalve.
Connection of Mains Scheme or Town Water
Supply to either Suction or Discharge of Pumps &
Pressure Systems
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 Water Products Pty Ltd
can not accept responsibility
for loss or damage resulting
from incorrect or unauthorised
installations.
Abrasive Materials
The pumping of abrasive materials will
cause damage to the pressure system
which will then not be covered by the
guarantee.
NOTE: Always ensure hot
water systems are installed in compliance with manufacturers
recommendations and in accordance with all local regulations.
Pipe Connections
ForbestperformanceuseP.V.C.
or polythene pipes at least the
samediameterasthepump’s
inletanddeliveryoutletopenings.
Largerdiameterpipemaybe
usedtominimiseresistance
toowwhenpumpinglonger
distances.
Useunionsatpipeconnectionstoenableeasyremoval
andservicing.Usesufcient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ltershould
beinstalledbeforethepumptoavoidblockingofwater
ways.Laysuctionpipeataconstantgradienttoavoidair
pocketswhichmayreducepumpefciency.
Extra Draw-off Capacity
The“Presscontrol”hasaninbuiltaccumulatorwhichwillaccommodatesmall
leaks.Insomeapplicationsitmaybeappropriatetoinstalladditionalaccumulator
(Supercellpressuretank)capacity.Theseapplicationsincludes:
• Longsuctionlines(seeSuctionLines/Lift)
• Lowowappliancesconnectedtothepump,suchasevaporativeair
conditioners,slowllingtoiletcisterns.
Anyadditionalaccumulatorscanbeinstalleddownstreamofthecontroller(ie.
betweenthecontrollerandtherstoutlet).
NOTE: Suction leaks are the largest cause of poor pump performance and
are difcult to detect. Ensure all connections are completely sealed using
thread tape only.
DO NOT USE THREAD SEALING COMPOUNDS, HEMP OR PIPE DOPE!
Do not use pipe thread sealing compounds on any part of this pump. ONLY
use Teon sealing tape.