WhisperPower M-SQ Pro 15 User manual

15 kVA | 18 kVA | 1500 RPM | 240/120 V | 60Hz | Split Phase
Enjoy Green Energy
Marine Diesel Generator
M-SQ Pro
whisperpower.com
Installation Manual

2 M-SQ PRO 15/18 kVA 60 Hz Marine Diesel Generator

M-SQ PRO 15/18 kVA 60 Hz Marine Diesel Generator 3
Art.nr. 50200339 | 04-09 2023
Contents
1 INTRODUCTION����������������������������������������������������������������������������������������������������������������������������������������������������������������4
1.1 General 4
1.2 Locaon 4
1.3 Instruconsforopmalsoundandvibraoninsulaon 4
1.3.1 Furtherrecommendaons 4
1.4 Venlaon 4
1.5 Connecons 5
1.5.1 Fuelsupply 6
1.5.2 Cooling 7
1.5.3 Exhaustsystem 9
1.5.4 DigitalDieselControlsystem(12Volt) 11
1.5.5 ACpowersystem(230/400Volt) 13
2 INSTALLATION SPECIFICATIONS��������������������������������������������������������������������������������������������������������������������������������������� 14
2.1 General 14
2.2 Commissiontable 15
2.3 InstallaonspecicaonsM-SQ-Pro15 16
2.4 Specicaonsoftheaccessories 17
2.5 InstallaonmaterialsM-SQ-Pro15/18 17
3 DIAGRAMS & DRAWINGS ����������������������������������������������������������������������������������������������������������������������������������������������� 21
3.1 WIRINGCODESANDCOLORSM-SQPRO15SPLITPHASE-MARINE 21
3.2 WIRINGCODESANDCOLORSM-SQPRO18SPLITPHASE-MARINE 22
3.2.1 LayoutcontrolwiringM-SQPRO15SPLITPHASEKubota 23
3.2.2 LayoutcontrolwiringM-SQPRO15SPLITPHASEKubota 24
3.2.3 LayoutcontrolwiringM-SQPRO15SPLITPHASEKubota 25
3.2.4 LayoutcontrolwiringM-SQPRO18SPLITPHASEKubota 26
3.2.5 LayoutcontrolwiringM-SQPRO18SPLITPHASEKubota 27
3.2.6 LayoutcontrolwiringM-SQPRO18SPLITPHASEKubota 28
3.3 WhisperPowerremotepanel 29
3.4 M-SQ15dimensionsandfootprint 30
3.5 M-SQ18dimensionsandfootprint 31

4 M-SQ PRO 15/18 kVA 60 Hz Marine Diesel Generator
1 INTRODUCTION
1�1 General
ThismanualappliestotheM-SQPro15/18MarineDieselGener-
angsetcontrolledbyDigitalDieselControlrstlaunchedinSep-
tember2005.Forothermodelsrefertoothermanualsavailable
onourwebsite:www.whisperpower.com.
Toensurereliabilityanddurabilityoftheequipment,itisvery
importantthattheinstallaoniscarriedoutwiththeutmostcare
andaenon.Toavoidproblems,suchastemperatureproblems,
noiselevels,vibraon,etc.theinstruconssetoutinthismanual
mustbefollowedandallinstallaonworkmustbecarriedout
professionally.
1�2 Locaon
SinceWhisperPowergenerangsetshaveextremelycompactdi-
mensions,theycanbeinstalledinghtlocaons.Pleaseconsider
thatevenalmostmaintenance-freemachinerymustsllremain
accessible.
Whenselecngthelocaonareainwhichtomountthegenerat-
ingset,makesurethereissucientroomtocarryoutanymain-
tenancework.Theunitmustbeeasilyaccessibleontheservice
sideandonthedistribuonsidetohaveaccesstotheV-belt
Pleasealsonotethatinspiteoftheautomacoilpressuresensor
itissllessenalthattheoillevelischeckedregularly.
1�3 Instrucons for opmal sound and vibraon
insulaon
1�3�1 Further recommendaons
Posionthegenerangsetaslowaspossibleinthevessel.The
generangsetisalreadysecuredtothebaseframebymeansof
exibleenginemounngs.Thebaseframecanbemountedto
theshipmainstructure.Usetheincludedmounngtemplateto
determinethemounngspots.
WhisperPowergenerangsetsarestandardequippedwitha
soundcover.Thecanopyhasbeendesignedtogiveeecve
soundinsulaon.Foropmumsoundandvibraondampening,
thefollowingfactorsshouldbeconsidered.
1. Mostimportantisthestructureonwhichthegeneratoris
placestobes.Seegure1.Directlybelowtherubber
mounngsthestructureshouldbesupportedvercallyto
thesuperstructureoftheship.
2. Avoidmounngthegenerangsetincloseproximitytothin
wallsoroorsthatmaycauseresonance.
3. Sounddampeningisextremelypoorifthegenerangsetis
mountedonalightweightimsysurfacesuchasplywood
whichwillonlyamplifyvibraons.Ifmounngonathinner
surfacecannotbeavoided,thisshouldbeatleastbe
reinforcedwithseningstrutsorribbing.Ifpossible,holes
shouldbedrilledorcutthroughthesurfacetohelpreduce
theresonance.Coveringthesurroundingwallsandoors
withaheavycoangplusfoamwillcertainlyimprovethe
situaon.
4. Neverconnectthebaseofthegenerangsetdirectlyto
bulkheadsortanks.
1�4 Venlaon
Thegenerangsetnormallydrawsairfromtheengineroom.
Engineroomswithnaturalvenlaonmusthaveventopenings
ofadequatesizeandlocaontoenablethegenerangsetto
operatewithoutoverheang.Toallowanamplesupplyofair
withinthetemperaturelimitsofthegenerangsetanopeningof
atleastahalfsquaremeter(0,5m2)isrequired.
Figure 1:Mounng of the Whisper generang set. X = wrong, V = OK

M-SQ PRO 15/18 kVA 60 Hz Marine Diesel Generator 5
A“sealed”enginecompartmentmusthaveagoodextracon
venlatortomaintainreasonableengineroomtemperatures.
Hightemperatureofintakeairreducesengineperformanceand
increasesenginecoolanttemperatures.“Theratedpowerof
thegeneratorismeasuredatanambienttemperatureof25°C,
eachtemperatureincreaseof5°Creducestheenginepowerby
about2%”.Tominimizetheseeectstheengineroomtempera-
turemustnotbemorethan15ºCabovetheoutsideambientair
temperature.
Applyacombinaonofvenlators,blowersandairintakeducng
tomeetthetemperaturelimit.Theairinletductsshouldrunto
theboomoftheengineroomtoclearfumesfromthebilge
andtocirculatefreshair.Airoutletsshouldbeatthetopofthe
engineroomtoremovethehoestair.Anengineroomblower
shouldbeusedasanextraconvenlatortoremoveairfromthe
engineroom.
Incaseswhereitisimpossibletomeettheabovemenonedtem-
peraturelimitbyusingmachineroomvenlaon,conneconsare
tobemadeforanairinletdirectlytotheenclosure.Withthese
conneconsthegenerangsetcanbedirectlyconnectedtoan
airduct.
Airinletsshouldbelouvered,whereappropriate,toprotectthe
engineroomandtoprotectthegenerangsetfromwaterspray.
Asanextraprecauon,thengofacowlvenlatorwithacover
boxlocatedashighaspossible,isrecommended.
1�5 Connecons
Thegenerangsetcomessuppliedwithallsupplylinesandout-
putcable(i.e.electriccables,coolingwaterconnecons,exhaust,
fuellinesetc.)alreadyconnectedtotheengineandgenerator.
Thesupplylinesarefedthroughthecapsule’sbase.Theconnec-
onsaremarkedasshowning.2.
Allelectricalconnecons,cabletypesandsizesmustcomplywith
theappropriatenaonalregulaons.Suppliedcablesarerated
forambienttemperaturesupto70°C.Ifthecablesarerequired
tomeethighertemperaturerequirements,theymustberun
throughconduits.
ATTENTION!
Beforeworking(installaon)onthesystemreadthe
seconsafetyinstrucons
Lifting eye Lifting eye
Oil filter
Coolant fill
Oil fill
01
02 03
04
05
06
07
08
09
10
11
12
13
14
01 Battery "black" 35mm²
02 Battery "red"35mm²
03 Air inlet
04 Earth lug M10
05 AC cable 3G 10mm²
AC cable 4G 6mm²
AC cable 5G 4mm²
06 Communication cable
07 Fuel pump power cable
08 Fuel return 8mm
09 To Syphon hose 3/4"
10 Fuel in 8mm
11 Water in hose 3/4"
12 Drain
13 From Syphon hose 3/4"
14 Exhaust hose conn. ø50
Fig. 2 Connections
Figure 2: Whisper generang set connecons

6 M-SQ PRO 15/18 kVA 60 Hz Marine Diesel Generator
1�5�1 Fuel supply
1 FUEL TANK
Fueltanksshouldbemadeofappropriatematerialsuchas
(stainless)steelorplasc.Steeltanksshouldnotbegalvanized
orpaintedinside.Condensaoncanoccurinmetaltankswhen
temperaturechanges.Therefore,wateraccumulatesatthebot-
tomofthetankandprovisionsshouldbemadeforthedrainage
ofthiswater.
Thetankwillneedallingconnecon,areturnconneconand
anairvenlaonconneconwhichwillrequireproteconagainst
waterentry.
Someocialregulaonsdonotallowconneconpointsatthe
baseofthefueltank;inthisinstanceconneconsaretobemade
atthetopofthetankwithinternaltubingdowntoafewcm
abovetheboomofthetank.
2 FUEL LIFT PUMP
Thegenerangsetitselfisequippedwithafuellipump;there-
forethetankcanbeinstalledatalowerlevelthanthegenerang
set.Themaximumsuconheightis1m.TheM-SQ-PRO18hasa
mechanicalfuelli-pumpthatshouldbeprimedmanuallybefore
therststart/use.´
Ifthepumphastolithefuelhigherthanonemeteranexternal
electricalfuellipumpmustbeinstalled(Art.No.50201161)
orheavydutypump(Art.No.50201168).Thecontrolboardis
alreadypreparedtoconnectanextrafuelpump.
3 FUEL PIPES
Whenthetankisabovethegenerangsetwerecommendend-
ingthereturnlineonthetopofthetank.
Whenthereturnisonthetop-incaseofaleakagethereturn
linecannotoverowbecauseofsiphoning.Onewillonlyneeda
fuelcockinthefuelsupplyline(seegure3).Whenthetankis
belowthegenerangsetwerecommendendingthereturnline
ontheboomofthetank(A)belowtheinletofthesupplyline
(seegure4)
Figure 3: Fuel supply
1. Fuel return
2. Fuelsupply
3. Prelter/Waterseparator(oponal)
5. FuelTank

M-SQ PRO 15/18 kVA 60 Hz Marine Diesel Generator 7
Figure 4: Fuel supply
1. Fuel return
2. Fuelsupply
3. Prelter/Waterseparator(oponal)
4. Extrafuellipump(oponal)
5. Fueltank
Bothsupplyandreturnfuelpipelinesshouldbeappropriatema-
terialand8mmouterdiametertubing.Thequalityofthetubing
offuelpipescouldbesubmiedtolocalregulaonsdepending
ontheapplicaonofthevessel.
Thefuelpipescanbeplumbedtotheexiblehoseswhichare
onthegenerangsetandhaveaconnecontotto8mmpipe.
ThisfuellinesfulllsCEstandardsandareinaccordancewithISO
7840A2.Itisimportanttoavoidbendsinthepipes,astheycould
trapairbubbles.Thereturnpipeshouldneverbeconnectedto
thesuconpipeortootherconsumersofdieselfuel,suchasthe
propulsionengineandheatersandreturnpipes
4 FUEL FILTERS
Anefuellterisinstalledwhichrequiresmaintenance.Whis-
perPoweradvisestoinstallanextrafuellter/waterfuelsepara-
tornearthefueltank.
Beforestarngyourgenerangsetfortherstmefollowthe
fuelsystembleedingprocedureintheuser’smanual.
1�5�2 Cooling
Intercoolingisbasedonarawwaterpump,heatexchangerand
water-injectedexhaust.Coolingliquidintheinternalcooling
systemiscooledinaheatexchangerbyoutboardwater(raw
waterorseawater).Aertherawwateriswarmedupintheheat
exchangeritisdumpedoverboardbyinjecngitintheexhaust.
Thegenerangsetshouldhaveitsownseawater(coolantwater)
inletandshouldnotbeconnectedtoanyotherenginesystems.
Aproperlyinstalledcoolingsystemiscricaltokeepenginetem-
peratureswithinanacceptablerange.Ensurethattheinstallaon
complieswiththefollowinginstallaoninstrucons.
1 THE INTERNAL COOLING SYSTEM
Theinternalcoolingsystemshouldbelledwithcoolingliquid.
(Refertotheuser’smanual2.5.13)Whentheenginebecomes
hottheliquidexpandsandthesystemispressurized.Aerthe
pressurebecomestoohighthereleasevalveinthellingcapon
themanifoldopensandtheexpandingliquidispressedintothe
expansiontankthatisinthedelivery.Alsotheairinthesystem
thatiscollectedatthetopofthemanifoldisreleasedinthisway.
Whentheliquidcoolsdowntherewillbeunder-pressure.Anoth-
ervalveopensandtheliquidissuckedintothemanifoldagain.
Thissystemworksonlywhenthereisenoughliquidinially.This
hastobecheckedwhencommissioningthegeneratorset.By
llinguptheexpansiontankwhennecessarytherewillalwaysbe
enoughliquidinthesystem.Thehosethatisinthedeliveryhas
tobeconnectedtotheconnecononthesideofthellingcap.
Thishoseismadeofheatresistantplascandisnotsensivefor
kinks.
Thehosegoesthroughaholeinthecanopy
Figure 5: Expansion tank placement

8 M-SQ PRO 15/18 kVA 60 Hz Marine Diesel Generator
Figure 6: Internal cooling system
1 Waterlevel;
2 Water/exhaustseparator;
3 Seacock;
4 Waterlock;
5 Airvent;
6 Waterstrainer;
7 Seacock.
2 RAW WATER SUPPLY
Forrawwatersupplythefollowinginstallaonmaterialsare
required:-askinng-aseacock-awaterstrainer-hosesand
clamps.Inordertokeepthesuconresistanceinthelineata
minimum,theseawaterintakesystem(i.e.seacock,trough-hull
ng,inletlter,etc.)musthaveaninnerdiameterofatleast
25.4mmdiameter(1”).Thesuconhoseshouldbekeptasshort
aspossible.Rawwaterplumbingshouldavoidbendsasmuchas
possible.Restriconofrawwaterow,causedbykinkedhoses,
undersizedpipesorconnecons,willreducetheenginecooling
capability.Thisisthemaincauseforoverheangofanengine.
Aerrunningthegenerangsetfortherstme,checkthecool-
antowrateusingastopwatchandbyholdingapailofaknown
volumeunderthewet-exhaustoutlet.Theowrateshouldbe
accordingtothedataintheuser’smanual
3 INSTALLATION OF THROUGH HULL FITTING
Itisgoodpracceforyachtstouseahullinletngwithan
integratedstrainer(waterscoop).Forpropulsionenginesin
motorboatsthewaterscoopisoenmountedagainstthesailing
direcontoinducemorewaterintakeforcooling.
Thisshouldnotbedoneinthecaseofagenerang
set!Whensailingathigherspeeds,waterwillbe
forcedintotheinletandyourgenerangsetwill
overow!(seegure7).
OK!
WRONG!
X
Figure 7: Installing water intake
Onmotorboatsandonsailingboatsthewaterscoopforagen-
erangsetshouldbeedwiththeopeningfacedbackwardsto
preventwaterbeingforcedinduringsailing.
4 WATER STRAINER
Useanappropriatewaterstrainerwithconneconsof25.4mm
(1”).Installthewaterstrainerinawellaccessibleposion,5cm
abovethewaterline(seeg.6,ref.6).
5 SIPHON BREAKER (AIR VENT)
Whenthepointofwaterinjeconisbelowthewaterline,then
-whentheengineisstopped-thereisariskthatthecooling
watermayentertheengineasaresultofsiphoning.Toavoidthis
happening,thegenerangsetisdesignedtoaccommodatea
siphonbreaker(airvent).Seepage18SyphonBreakerkit.Inthe
standarddeliverytheconneconsarebypassed.Hoseof25.4
mm(1”)innerdiametershouldbeused.

M-SQ PRO 15/18 kVA 60 Hz Marine Diesel Generator 9
Ifthegenerangsetcannotbemountedsuchthattheboomof
thegenerangsetisplacedabovethewaterline,anairventmust
beinstalled.
Extendthewaterhoseoftheby-pass60cmabovewaterlineand
installanairvent.Ideally,theairventshouldbemountedabove
theyachtkeelcentreline(i.e.tominimizetheinuenceofsway-
ingonthewaterintake).Seegure6,ref.5.
Fastmotorboatswilllaydeeperwhensailingatlargespeedand
cancausepressureonthewaterinlet.Thisshouldbeavoidedto
preventoodingtheengine.
Iftheairventiscloggedthewaterhoseswillnotbe
ventedwhenthegenerangsethasstoppedandwater
canbeforcedintotheengine.Thisleadstoimmediate
engineproblemsandeventuallyseveredamage!
DAMAGE CAUSED BY THE INGRESS OF WATER IN THE ENGINE IS
NOT COVERED BY GUARANTEE
1�5�3 Exhaust system
Waterisinjectedintheexhaustsystemofthegenerangset.In
thiswaythecoolingwaterthathaspassedtheheatexchangeris
mixedwiththeexhaustgases.Temperatureandvolumeofthe
gasesaretherebyreducedconsiderably,sothatarubberexhaust
hosecanbeusedandthelevelofnoiseisreducedaswell.
1 STANDARD EXHAUST SYSTEM INSTALLATION
Thegenerangsetexhaustsystemmustremaincompletely
independentandseparatefromtheexhaustsystemofanyother
engineonboard.Awaterlockpreventsthegenerangsetfrom
beingoodedbycoolingwaterandshouldbeinstalledasclose
tothegenerangsetaspossible.Thelockmustbelargeenough
toholdtheenrewatervolumeheldinthehosefromthetop
ofthegoosenecktothewaterlock.Thewaterlockmustbe
installedatthelowestpointoftheexhaustsystem(ref.tog.8,
ref.1).Theexhausthosemusthaveaninnerdiameterof50mm
(1½”).Theexhaustsystemmustbeinstalledsothattheback
pressureinsidetheexhaustdoesnotexceed0.07bar(1psi–70
cmwatercolumn)andtotallengthfromthegeneratortothetop
ofthegooseneckorwater/separatordoesnotexceed3m(10
.).(Refertoparagraph5.4.3oftheuser’smanual).
Theexhausthosedescendsfromthecapsuletothewaterlock.
Thenthehoserisesviathe“gooseneck”tothethrough-hull
exhaustoutlet,situatedminimum50mmabovethewaterline
(seeg.8,ref5.)The“gooseneck”mustbevercalandsituated
preferablealongtheship’skeelcentreline.Ifthegenerangset
ismountedlessthan600mm(24”)abovethewaterline,a“goose
neck”mustbeinstalledtopreventtheenginefromoverow-
ing.Itisrecommendedtoinstallanextramuerclosetothe
through-hullng.
Figure 8: Exhaust system
1 Exhaustwaterlock;
2 Exhaustoutletmuer;
3 ExhaustlineØ50mm(1½”);
4 Gooseneck
5 Through-hullexhaustoutletØ63mm(2½”);
6 Waterlevel.

10 M-SQ PRO 15/18 kVA 60 Hz Marine Diesel Generator
2 “SUPER SILENT” EXHAUST SYSTEM
Inordertoreducethenoiselevelofthegenerangsettoamin-
imum,anopontoreducetheexhaustnoisefurther(especially
exhaustwatersplashing)isanexhaust/waterseparator.The
exhaust/waterseparatorallowsthecoolingwatertobeejected
throughaline(gure9,ref.A)separatefromtheexhaustfumes
andalsofunconsasagoosenecktopreventwaterfromood-
ingtheengine.Iftheexhaust/waterseparatorismountedmore
than60cmabovethewaterlevelanaddionalgooseneckisnot
required.
A
Figure 9: Super silent exhaust system
Ifthethrough-hullexhaustoutlethastobemountedfarfrom
thegenerangsetanexhaust/waterseparatormustdenitely
beinstalled(Totallengthoftheexhaustpipingfromgeneratorto
topofgooseneck(waterseparator)ismorethan3m.)(ref.tog.
10).
Theseawaterfromtheseparatormustthenrundownalongthe
shortestpossiblepathtothethrough-hulloutlet.Onlyaerthe
exhaust/waterseparatortheexhausthosemayhavealengthof
over7,5m(ref.tog.10)
WRONG!
OK!
50
50
40 50
X
Figure 10: