Davey Dynajet X50 User manual

Installation and
Operating Instructions
for Dynajet®
X50 / X70 / X90
Water Pressure Systems
Trouble Shooting Check List
a) MOTOR RUNS WHEN SWITCHED ON BUT DOES NOT PUMP.
 1. Suctionlineandpumpbodynotlledwithwater.
 2. Airleaksinsuctionlinesorsuctionpipenotunderwater.
 3. Airtrappedinsuctionlines(alsopossiblewithoodedsuctiondueto
unevenriseinpiping;eliminatehumpsandhollows).
 4. Nowateratsourceorwaterleveltoolow.
 5. Valveonsuctionlinesclosed.
b) PUMP SWITCHES ON AND OFF FREQUENTLY (CYCLING)
 1. Checkthattankairpressureiscorrect-seeabove.
 2. Leakingtaps,oatvalvesetc.checkplumbing.
 3. Leakingcheckvalve/footvalve.
c) MOTOR DOESN’T START WHEN SWITCHED ON.
 1. Powernotconnected.
 2. Supplyvoltagetoolow.
 3. “Overtemperature”cut-outtripped.*
 4. Motornotfreetoturneg.ajammedimpeller.
 5. Internalmotorfault.
Checking and Replenishing Tank Air Charge
Supercell“P”PressureTanksdonotrequireregularchecks
undernormaloperatingconditions,Ifairchargeadjustment
isrequiredthenfollowthefollowingprocedures:
1. Releaseallwaterpressurefromthepressuretankby
switchingoffthepumpatthepowerpoint,andopeningthe
closettap.Forabovegroundsupplytanksitisnecessary
toclosethegatevalvebetweenthesupplytankandthe
pump.
Leavetapopenduringairreplenishment.
2. Whenallwaterpressurehasbeenreleasedfromthesystem,checkair
pressureatairvalveontopofpressuretank.Thestandardpre-charge
pressurereadingshouldbe165kPaforX50and190kPaforX70andX90
models.Inanycasethepre-chargeshouldbesetat15kPabelowcut-in
pressure.
3. Ifnecessary,replenishairchargetothecorrectpressureindicated.Ensure
thatatapinoutletpipingofpumpsisopenduringreplenishmentofair
precharge.
Period Checks
Flushing:Dependingonthequalityofthepumpedwater,fromtimetotime,
yourtankmayrequiredushingtoremovesettlednessuchasmudorsand.
Ifsandormudisallowedtostayinthetank,itwillacceleratewearonthe
internalliningandshortenyourtank’slife.
Safelydisconnectthetankfromthewatersupply,dischargeallairfromthe
tankandushthetankseveraltimeswithcleanwater.Oncetheushing
waterisclean,reconnectthetankandrechargetheairasperabove.
Externalinspection:Atankingoodorderwillnotleak,butovertimedueto
damagethroughroughhandling,impactsorgritand/orimpuritiesinthewater,
thetankshellmayfailand/orleak.Shouldthetankleakorshowsignsof
possiblefailure,thetankshouldbeimmediatelydisconnectedandreplaced.
Please pass these instructions on to the operator of this equipment.
*NOTE: For protection, the Davey pump motor is tted with an
automatic “over temperature” cut-out. Constant tripping of this
overload device indicates a problem eg. low voltage at pump,
excessive temperature (above 45oC) in pump enclosure.
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 the 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 qualied persons.
During servicing, use only approved, non-petrochemical based oring
and gasket lubrication. If unsure, consult your Davey Dealer for advice.
WARNING: Do not use hydrocarbon based or hydrocarbon propelled
sprays around the electrical components of this pump.
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 inrm persons and must not be used as a
toy by children.
WARNING: Failure to follow these instructions and comply with all applicable codes may cause serious bodily injury and/or property damage. NOTE: Prior to installation remove the red transport plugs & associated seals from the suction and/or discharge ports.
CAUTION: To prevent personal injury, ensure all water pressure is released
from the pressure system prior to work being performed.
NOTE: During air replenishment the tank should be externally inspected. Any
signs of leakage from the tank may indicate a need for immediate replacement.
WARNING: Do not use tank if it leaks or shows signs of corrosion or damage.
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 di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 di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 aect 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. 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:
* Installation and operating instructions are included with the product when purchased new.
They may also be found on our website.
AUSTRALIA Customer Service Centre 6 Lakeview Drive, Scoresby, Australia 3179 Ph: 1300 232 839 Fax: [phone] Email: [email protected] Website: davey.com.au
Davey Water Products Pty Ltd Member of the GUD Group ABN 18 066 327 517
NEW ZEALAND Customer Service Centre 7 Rockridge Avenue, Penrose, Auckland 1061 Ph: 0800 654 333 Fax: [phone] Email: [email protected] Website: daveynz.co.nz
® Davey is a registered trademark of Davey Water Products Pty Ltd. © Davey Water Products Pty Ltd 2016. P/N 48660-10

Choosing a Site
Chooseasitewitharmbaseandasclose
tothewatersourceaspossiblewithcorrect
powersupply.Makesureyourpressure
systemisalwaysconnectedtoanadequate,
reliablesourceofcleanwater.
Housing your Davey Pressure System
Toprotectyourpressuresystemfromtheweather,
makesurethepumphouseisbothwaterproof,
frostfreeandhasadequateventilation.Thepump
shouldbehorizontallymountedonarmbase
allowingfordrainage,toavoiddamagetoooring
etc.,thatovertimemayoccurfromleakingpipe
jointsorpumpseals.Donotmountthepump
vertically.
Agoodqualitynon-returnvalvemustbe
installedinthepressurepumpoutletpipework
beforethehotwaterservice.Failuretoinstall
thisnon-returnvalvemayresultinpump
damage.Suchdamageisnotcoveredby
guarantee.
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 Products Pty Ltd can
not accept responsibility
for loss or damage
resulting from incorrect or
unauthorised installations.
WARNING: Some insects, such as small ants, nd electrical devices
attractive for various reasons. If your pump enclosure is susceptible
to insect infestation you should implement a suitable pest control plan.
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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mayreducepumpefciency.
Where to use Check Valves and Foot Valves
Installationswithasuctionliftover1mrequireagoodqualityfootvalveto
avoidlossofprime.Inthiscase,thepoppetvalveinsidethepumpshould
beremoved.Installationswithoodedsuctionrequireagatevalvesowater
supplycanbeturnedoffforpumpremovalandservicing.
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.
Congratulationsonyourpurchaseofahighquality,AustralianbuiltDaveypres-
suresystem.Allcomponentshavebeendesignedandmanufacturedtogive
troublefree,reliableoperation.
1. Pressuretank
2. Pressureswitch
3. Deliveryoutlet
4. Suction inlet
5. Pump body
6. Motor
7. Base
8. Primingplug
Connectionsizes:
Model Inlet Outlet
X50 1” 1”
X70 11/4” 1”
X90 11/4” 1”
Do not use pipe thread sealing compounds on any part of this pump.
ONLY use Teon sealing tape.
Before installing your new pump, please read all instructions carefully as fail-
ures caused by incorrect installation or operation are not covered by the guar-
antee. Your Dynajet® system is designed to handle clean water. It should not
be used for any other purpose without specic referral to Davey. The use of the
pump to handle ammable, corrosive and other materials of a hazardous nature
is specically excluded.
Priming and Operation
1.Removeprimingplugandll
pumpandsuctionline(onooded
suction,simplyopengatevalve
 topump).Whenfull,
 replaceprimingplug.
2.Ensureoutletnearesttopumpis
open.
3.Ensureallvalvesinsuctionlineare
openandswitchon.
4.Primeshouldestablishalmost
immediatelyandastrongow
ofwatershouldbe
evidentfromthe
outlet.Allowwaterto
owfor10-20seconds
toexpelairthenclose
outlet.
5.Ifnoow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.
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.
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.
IMPORTANT
For Automatic Pressure Pumps Installed with a Mains Pressure Hot
Water System.
Abrasive Materials
The pumping of abrasive materials will cause damage to the
pressure system which will then not be covered by the guarantee.