15
MVPHYDRABYPASSSETUP
PinValve
Pump Bypass: WiththebrewgroupinMmode,turntheassociatedbrew
groupactuatormomentarilytothele.Adjusttheregulatortocontrolpre‐
infusepressure.Turnletwiceinarowandadjustthepumppressure
(typically9bar.)Finally,turnleoncemoreandadjustbypasspressure
usingthepinvalveatthepump.Adjusttotaste(factorysengis7bar.)
Thepre‐infusionmeandrampup,orbypass,me
aresetontheTemperatureControlscreenofthe
displaybyfollowingthedireconsonpages20‐21.
Pressthebuonnexttothelinetobeadjustedand
usetheupanddownarrowstoadjustthesetme.
Withthesesengsinplace,youcantastetheeffectsofpressurerampingappliedtoeachshot.Theshotbe‐
ginswithpre‐infusion.Lowpressurewatersaturatesthepuck,swellingittoreducechanneling.Aerthepre
‐infusemehaselapsed,rampup(bypass)begins.Thebypasssystemcreatesaslowriseinwaterpressure
byparallydiverngwaterawayfromthebrewgroup.Aertherampupmeends,thebypassclosesanda
brewpressure(9bar)stagebegins.Rampdownreturnstobypasspressure.WheninMorMPmode,theop‐
eratorentersrampdownbymovingthegrouptopactuatormomentarilytothele.Volumetricgroupscan
beprogrammedtoautomacallybeginrampdownatasetpercentageoftheshotasdescribedonpage20.
MVP&MVPHYDRAINTRODUCTION
TheMVPHydraisamachinemodelwithapumpandmotorforeachgrouphead.TheMVPHydrahasinter‐
nalplumbingandwiringtoaccommodateseparateanddisnctpressuresineachbrewgroup.Incontrast,
anMVPhasasinglepumpandmotorfortheenremachine.Havingindividualpumpsandmotorsallows
theoperatortocontrolbrewingpressureateachgrouphead,andeachbrewgroupfunconsindependently
withoutaffecngthepressureattheothergroups.
MVPHydragroupscanfunconinManualmode(M)withfullmanualcontrol,inManualProgram
mode
(MP)withmedpre‐infusionandpressurerampup,orinVolumetricProgrammode(VP)withprogrammed
pressureramping.Anygroupheadcanbechangedontheflytoanyconfiguraonatanyme.
Last Shot Brewed:
TheMVPandMVPHydrahaveastoragefeaturewherethelastbrewingfunconisstoredinatemporary
memory.Thisappliestoanybrewingfuncon.Ifyouquicklypurgeascreen,thiswillbestoredasthelast
shotbrewed.Ifyoumanuallybrewanespressothatisperfect,thisisthelastshotbrewed.Thefollowing
funconsdonotchangethememoryofthelastshotbrewed:
Turningonsavemode(holdanybrewgrouphandlerightfor2.5seconds)
Shiingthruthe6availableprograms(momentarypressesofthebrewgrouphandletotheright)
Saving(momentarilypressingthebrewgrouphandlelefromwithinsavemode)
Savingagaintoaddionalprogramlocaons,onthesame,ordifferentgroups
Exingsavemode(holdanybrewgrouphandlerightfor2.5seconds)
ShiingbetweenprogramsM,MP,VP,byholdingthehandleonthedesiredbrewgrouple
Whenarunninggroupisstopped,theparametersarestored.Aershotparametersaresavedtheycanbe
viewedandalteredonthehandheldcontroller.Anyalteraonsaresavedasnew
shotparameters.