Uwatec AIR 2 User manual

AIR2 - 5TH GENERATION
OCTOPUS/BC INFLATOR

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English
SCUBAPRO AIR2 - 5TH GENERATION MANUAL
(OCTOPUS / BC INFLATOR)
TABLE OF CONTENTS
1. Important warnings ...............................................................................................4
2. EuropeanCertication ...........................................................................................4
2.1 EN 250: 2014 norm regulations and what they mean.......................................4
2.2 Denitionof‘SCUBA’accordingtoEN250:2014............................................5
2.3 Limitations provided by EN 250: 2014 .............................................................5
2.4 Octopus(auxiliaryemergencybreathingsystem)..............................................6
3. Important warning reminders ...............................................................................6
4. Regulator system ...................................................................................................7
4.1 First stage........................................................................................................7
4.2 Secondstage ..................................................................................................7
4.3 Auxiliaryemergencysecondstage(octopus)withintegratedBCinator:AIR2 .7
5. Preparing for use ....................................................................................................8
5.1 Set-up/in-usewarning .....................................................................................8
6. Equipment use ........................................................................................................9
6.1 InatoruseoftheAIR2(normaloperatingmode)..............................................9
6.2 EmergencybreathingwithAIR2.....................................................................10
6.3 Post dive ......................................................................................................11
7. Careandmaintenance .........................................................................................11
7.1 Care ............................................................................................................11
7.2 Maintenance..................................................................................................12

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1. IMPORTANT WARNINGS
!WARNING
THIS MANUAL MUST BE READ AND UNDERSTOOD ENTIRELY BEFORE USING THE
PRODUCT. IT IS ADVISED THAT YOU KEEP THIS MANUAL IN YOUR POSSESSION
DURING THE ENTIRE LIFE OF YOUR AIR2 - 5TH GENERATION.
!WARNING
When diving you must follow the rules and apply the skills taught by a recognized
scuba diving certication agency. Before taking part in any diving activity, it is
mandatory to have successfully completed a scuba diving course covering both
theoretical and technical aspects of diving.
!WARNING
This instruction manual does not replace a diving instruction course!
2. EUROPEAN CERTIFICATION
SCUBAPRO AIR2 - 5th Generation (hereafter called AIR2) described in this manual has
obtainedtheEuropeancerticationissuedbyRINAaccordingtoEuropeanrulesregulating
theconditionsforthereleaseonthemarketandthefundamentalsafetyrequirementsfor
thirdcategoryPersonalProtectiveEquipment(PPE).
CerticationtestshavebeenconductedaccordingtotheEN250harmonizedstandardto
verifythecomplianceofAIR2tothefundamentalrequirementsforhealthandsafetysetby
Europeanregulation2016/425/EU
TheCEandEN250marksontheproductdenotetheconformitytosaidrequirements.
The0474numbernexttotheCEmarkingistheidenticationcodeforRINAViaCorsica,
12, 16128 Genova (GE) Italy, the notied body controlling production compliance with
regulations,asperModuleD2016/425/EU
TheManufacturerofSCUBAPROAIR2isSCUBAPROEUROPEs.r.l.ViaTangoni1616030
Casarza Ligure (GE) Italy. SCUBAPRO EUROPE s.r.l. has a quality management system
certiedbyRINAinaccordancewiththeISO9001:2015standard.
2.1 EN 250: 2014 norm regulations and what they mean
TherequirementsandtestsdenedbytheEN250:2014aimtoensureaminimumsafety
levelfortheoperationofunderwaterbreathingequipment.
InEurope,theEN250normdenessinceyearstheminimumtechnicalstandardsofacceptance
forrecreationaldivingregulatorsandtheEN250:2014isthelatestrevisionoftheEN250norm.
SCUBAPRO AIR2 has been tested with the following SCUBAPRO rst stages, and has
successfullypassedthecerticationtestsrequiredbyEN250:2014toanauxiliaryemergency
breathingdeviceintegratedwithabuoyancyinatorsystem.
MK2 EVO, MK11, MK17 EVO, MK19 EVO, MK21, MK25 EVO.
!WARNING
The use of AIR2 as auxiliary emergency breathing device is certied only with
SCUBAPRO rst stages.
Please refer to SCUBAPRO regulators manual for any additional information

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English
!WARNING
The use of AIR2 as buoyancy control system of the BC, is certied only with
SCUBAPRO BCs.
Please refer to the SCUBAPRO BCs manual for any additional information
!WARNING
In accordance with European standards, AIR2 can only be considered certied
where all components are present, as per the original SCUBAPRO conguration,
including the low pressure hose supplied. Any variation of the original conguration
invalidates conformity to European certication standards.
2.2 Denitionof‘SCUBA’accordingtoEN250:2014
ThisregulationdenesaSCUBAunitasaself-containedopen-circuitunderwaterbreathing
apparatus.
ASCUBAunitcanbecomposedofcomponentgroups.Duringuse,theminimumrequired
componentgroupsareelementsa)toe)ofthefollowinglist:
a. cylinder(s)withvalve(s);
b. demandregulator(s);
c. pressureindicator
d. facepiece:completemouthpieceorhalf-maskfordivingorcompletemask;
e. carryingsystem.
Theapparatusmayalsoincludethefollowingsub-assemblies:
f. auxiliarybreathingsystem
g. liftingharness
h. depth/timemeasuringdevice
i. additionalsafetydevice(s)
j. voicecommunicationsystem
2.3 Limitations provided by EN 250: 2014
TheSCUBAunitcanbecomprisedofseparatecomponentssuchas:cylinder(s),regulator(s),
pressure gauge.
TheSCUBAPROregulatorsdescribedinthismanualcanbeusedwithSCUBAcomponents
unitscertiedaccordingregulationEU2016/425andEN250:2014norm.Theaircontained
inthecylindermustcomplywiththerequirementsforbreathableairdenedbyEN12021
norm.Thecerticationdepthis 50 meters(164ft.),howeverdiversmust conformtothe
limitssetbylocalregulationsinforceatthedivinglocation
!WARNING
If a SCUBA is congured for and used by more than one diver at the same time,
then it shall not be used at depths greater than 30 meters and in water temperature
less than 4°C (39.2°F) if marked “EN250A” ,and less than 10°C (50°F) If marked with
“EN250A>10°C”.
!WARNING
The use of AIR2 as regulator is certied exclusively for diving in water temperature
higher than 10°C (50°F), as shown in marking.
Do not use AIR2 as regulator during diving in water temperature below that limit.
Failure to follow this indication could lead to serious injuries or even death.

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!WARNING
Only SCUBA complying with EN250:2014 and marked “EN250A” or “EN250A>10°C”
may be used as an escape device by more than one diver at the same time.
2.4 Octopus(auxiliaryemergencybreathingsystem)
Theoctopusisusuallyconsideredasanauxiliaryemergencysecondstagetobeusedby
thediverincaseofneed(suchasmalfunctionofitsprimarysecondstage).
ASCUBAinoctopuscongurationisdenedasanoctopussecondstageconnectedwith
thesamerststageoftheprimaryregulator.
TheEN250:2014 denes minimumsafety requirements, testingand maximumdepth (30
meters)incasetheSCUBAisusedbytwodiversatthesametimewiththeoctopussecond
stageusedasanauxiliaryemergencybreathingescapedevicebyanotherdiver.
TheEN250:2014alsodenesminimumsafetyrequirementsforauxiliaryemergencybreathing
devicesintegraltoaBCinationsystemusedasabreathingescapedevice(AIR2).
3. IMPORTANT WARNING REMINDERS
ForyourprotectionwhileusingSCUBAPROlifesupportequipment,wecallyourattention
tothefollowing:
1.Usetheequipmentaccordingtotheinstructionscontainedinthismanualandonlyafter
havingcompletelyreadandunderstoodallinstructionsandwarnings.
2.Useoftheequipmentislimitedtotheusesdescribedinthismanualorforapplications
approvedinwritingbySCUBAPRO.
3.Cylindersmustonlybelledwithatmosphericcompressedair,accordingtothe
EN12021norm.Shouldmoisturebepresentinthecylinder,besidecausingcorrosion
ofthecylinder,itmaycausefreezingandsubsequentmalfunctionoftheregulatorduring
divescarriedoutinlowtemperatureconditions(lowerthan10°C(50°F)).Cylindersmust
betransportedaccordingtolocalrulesprovidedforthetransportofdangerousgoods.
Cylinderuseissubjectedtothelawsregulatingtheuseofgasesandcompressedair.
4.Theequipmentmustbeoverhauledbyqualiedpersonnelatthesetschedule.
Overhaulsmustbedocumented.Whenmakingrepairsandduringmaintenance,only
SCUBAPROreplacementpartsmustbeused.
5.Shouldtheequipmentbeservicedorrepairedwithoutcomplyingwithprocedures
approvedbySCUBAPROorbyuntrainedpersonnelornotcertiedbySCUBAPRO,or
shoulditbeusedinwaysandforpurposesotherthanspecicallydesignated,liabilityfor
thecorrectandsafefunctionoftheequipmenttransferstotheowner/user.
6.Thecontentofthismanualisbaseduponthelatestinformationavailableatthetimeof
goingtoprint.SCUBAPROreservestherighttomakechangesatanytime.
SCUBAPRO refuses all responsibility for damages caused by non-compliance with the
instructionscontainedinthismanual.Theseinstructionsdonotextendthewarrantyorthe
responsibilitiesstatedbySCUBAPROtermsofsalesanddelivery.
!WARNING
Don’t connect your AIR2 to the upper central LP port in the rst stages equipped
with turret since the axial-direct High Flow could make your AIR2 not work properly.

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English
4. REGULATOR SYSTEM
Aregulatorsystemisrequiredtoreducethepressureofthecompressedaircontainedin
thecylindertoanambientpressureinordertosupplybreathableairwhenneeded.Itisalso
possible to connect pressure gauges (analog or digital), IP inators to supply buoyancy
compensators,drysuitsandotherdevicestothissystem.Theregulatorsystemiscomposed
of a pressure reduction device and one or more breathing devices. In this manual, the
pressure-reducing device and the breathing device will be indicated, respectively, by the
terms“rststage”and“secondstage.”
4.1 First stage
Apressure-reducingmechanismthatreducesthepressureofthecompressedaircontained
inthecylindertoanintermediaterelativepressureofabout9.5bars(138psi).Therststage
usesastandardpiston,balancedpistonordiaphragmmechanism.
4.2 Secondstage
Thisunitissuppliedbytheintermediatepressureaircomingfromtherststagethroughthe
lowpressurehose.Itfurtherreducesairpressuretobalancewiththeambientpressure.The
secondstagemaybebalancedorunbalancedandequippedwithaVenturieffectcontrol
(V.I.V.A.)and/orwithaninhalationresistancecontrol.
4.3 Auxiliaryemergencysecondstage(octopus)withintegrated
BCinator:AIR2
Alsothisunitisfedbytheintermediatepressureaircomingfromtherststageviaalow
pressurehose.Theiarpressureisfurtherreducedtoreachthebreathingpressure.
Theauxiliaryemergencysecondstageisusedbythediverwhenthemainsecondstagehas
problemsorwhenthebuddydiverisexperiencingproblemsduringthedive.
ThisauxiliaryemergencysecondstagecanbereplacedbyAIR2.Thisunitincludesfeatures
ofbothatraditionalBCinatorandanauxiliaryemergencybreathingdevice.Thereforeit
canbeusedforinating/deatingtheBCortooperateasanauxiliaryemergencybreathing
deviceforthemselvessotogivethemainsecondstagetothebuddyexperiencingproblems.
TheAIR2issimpletouseandsafe,eveninunusualsituations.Thediverwillnotwastetime
tondtheemergencysecondstagesincetheAIR2willalwaysbethere,wherethelefthand
isusedtolookfortheBCinator.
The AIR2 it is also a BC ination and deation device, therefore it has a specic quick
connectiontothelowpressurehosewhichallowsfastconnectionanddisconnectioneven
whenthesystemisalreadypressurized.Thesystemautomaticallystopstheairowfromthe
hoseonceit’sdisconnectedfromtheAIR2usingthequickcoupling(g3-C).

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5. PREPARING FOR USE
BeforeassemblingtheSCUBAunitverifythatallcomponentscomplywithlocalorEuropean
standards.
• Beforeconnectingtherststagetothecylinderverifythattheconnectionisfreefrom
dirt(sand,debris)andthattheO-ringisundamaged.
• INTconnection:placetherststageconnectoronthecylindervalveafterchecking
thatitisalsofreefromdirtordebris.Checkthatthecontactsurfacesareinthecorrect
positionandthentightentheyokescrew.Inordertoobtainthemaximumcomfort,the
lowpressurehoseconnectingtherststagetothesecondstageshouldbehorizontal
anddirectedtowardthediver’srightshoulder(Img.1).
• DINconnection:screwtherststageconnectoronthecylindervalveaftercheckingthat
thisisalsofreefromdirtordebris.Beforetighteningthehand-wheelandwhilescrewing
itin,conrmthatthethreadsontheDINconnectionandonthevalvecorrespond
correctlyandarenotcrossed.Inordertoobtainthemaximumcomfort,thelowpressure
hoseconnectingtherststagetothesecondstageshouldbehorizontalanddirected
towardthediver’srightshoulder(Img.2).
Img. 1 Img. 2
• Fitthecarryingsystem/jacket(refertotheappropriateuserinstructionguide).Aftertting
thecarryingsystem,thecylindershouldsitsecurely.Checktobesurethatthecylinder
cannotcomelooseonitsownaccord.
• Conductavacuumleaktest.Withthecylindervalveclosedslowlyinhalefromthe
secondstage.Itshouldbepossibletoachieveandmaintainaminimalnegativepressure
withoutairenteringthesystem.Thistestmustberepeatedforallregulatorsecond
stagesconnectedtotheSCUBAunitinuse.
• Nowconductahigh-pressureleaktest.Slowlyopenthecylindervalve,checkforany
leaksandreadthepressureregisteredonthepressuregauge.
5.1 Set-up/in-usewarning
!WARNING
While opening the cylinder valve, the pressure gauge face must not be directed
towards the user or others, in the event and risk of a pressure gauge malfunction.
!WARNING
When opening the cylinder valve the second stage purge button should be slightly
depressed, so that the second stage valve is open.

9
English
!WARNING
Do not push down on the purge button in low temperatures, as this may cause a
second stage freeze-up.
• Closethecylindervalveandcheckthepressuregaugeonceagain.Duringtherst
minutethedisplayedpressureshouldnotdecrease.Thenopenthevalveagain.
• Ifthecylindervalveisequippedwithareserverod,verifythatitisfreetomove
downwardsforitsentirelength.Ifyouplanonusingthereserve,ensurethatthe
mechanicalreservevalveisinthecorrectposition(Up).
• CheckthattheentireSCUBAunitisfunctioningcorrectlybyperformingseveral
completebreathingcycles(deepinhalation/exhalation)withthecylindervalveopenand
thesecondstagemouthpieceinthemouth.
• CheckthatalldevicesconnectedtotheSCUBAunitareoperatingcorrectly.For
example,checkthatthebuoyancycompensatorinator(orthedrysuitinletvalve)is
functioningetc.
!WARNING
Never connect a low pressure hose to a high pressure port. These connection
threads are different sizes and are not compatible. Do not use adapters of any
kind to connect low-pressure devices to high-pressure ports. Doing so could cause
serious damage to both the user and equipment.
!WARNING
Do not attach a L.P. hose to a Scuba regulator high pressure (HP) port or to an air
supply with pressure in excess of 200 psi (13.8 bar). This may result in damage or
explosive failure of the Ination Valve or Low pressure Hose, which could result in
injury or death.
6. EQUIPMENT USE
CheckthattheSCUBAunitiscompleteinallrespectsandcomplieswithallrequirements.
Refer to the IMPORTANT WARNING REMINDERS and PREPARING FOR USE sections
and the regulators and BC manual. Open the cylinder valve, don the equipment en put
thesecondstageinyourmouth,breathedeeplyafewtimestoensurethatthesystemis
operatingcorrectly.Whenthemouthpieceisoutofthemouth,simplypressingthepurge
buttonmaytriggertheVenturieffectandcausearegulatorfree-ow.Thefree-owcanbe
stoppedbycoveringthemouthpieceopeningwithanger.
6.1 InatoruseoftheAIR2(normaloperatingmode)
WhenproperlyinstalledontheleftshoulderoftheBC,theAIR2canbefullyoperatedwith
thelefthandbypushingthebuttonsforination(P)ordeation(O)(seeimg3).Thesetwo
buttonsareoffsetandshowdifferentsizesforeasyidentication.Thesmallerbutton(P)is
depressedforautomaticination.Thelargerbutton(O)isdepressedfordeation.Fororal
ination,only thelarge deationbutton isused. Toinate, thediver sealshis lipson the
mouthpiece, fully depresses the deation button, then exhales into the mouthpiece and
releasesthebuttontocapturetheexhaledair.
TheAIR2hasaspecicquickconnection(C)tothelowpressurehosewhichallowsfast
connectionanddisconnectionevenwhenthesystemisalreadypressurized.Thesystem
automaticallystopstheairowfromthehoseonceit’sdisconnectedfromtheAIR2using
thequickcoupling.(img3)

10
Img. 3
!WARNING
In buoyancy devices equipped with CO2 (carbon dioxide) detonators, the possibility
exists under a certain set of circumstances that CO2could be inhaled from the device.
If CO2 has been detonated, do not depress the deation button with the unit in the
mouth or attempt to further inate the device orally. Doing so would release CO2into
the mouth, and it could possibly be inhaled. Flush the buoyancy device thoroughly
with air or fresh water before reuse; the presence of CO2from a detonated cartridge
should be readily noticeable because it is distastefully avored and odored.
6.2 EmergencybreathingwithAIR2
TheAIR2canbeusedasanemergencysecondstage,purposelydesignedtoquicklyand
completelymeettheneedsofadiverinanemergencysituation.
UsingtheAIR2asanemergencyregulatorrequiresminimumbreathingeffortandcausesno
variationtothebuoyancycapabilityofthevest.
Touseitasabreathingdevice,simplybreathfromthemouthpiecewithoutpressanybutton.
!WARNING
Never push the deation button during use of the AIR2 as a breathing device: this
leads breathing the gas that is inside your BC.Your BC may contain gas residue,
liquid, or contamination that may result in injury or death if inhaled.
TheAIR2isequippedwithaVenturieffectadjustmentsystem,thisdevicemustbeturnedto
the“PREDIVE”settingwhileatthesurface(Img.4).
WhentheAIR2isusedin breathinguse,adjustmentknob must beturnedto the “DIVE”
position.
Anaccidentalfree-owcanbestoppedbycoveringthemouthpieceopeningwithangeror
bysubmergingthesecondstageregulatorwiththemouthpieceturneddown,orbyplacing
themouthpieceinthemouth.
!WARNING
Breathing must be continuous, without holding one’s breath.
WhentheAIR2isnotusedasabreathingdevicetheknobshouldbesettothe“PREDIVE”
positionfortheentiredurationofthedive.
ShouldtheuseofthisAIR2beneeded,theadjustmentknobmustbeturnedto“DIVE”.

11
English
!WARNING
All dives must be planned and carried out so that at the end of the dive the diver will
still have a reasonable reserve of air for emergency use. The suggested amount is
usually 50 bars (725 psi).
Img. 4
6.3 Post dive
Close the cylinder valve and drain the system by pushing on the purge button of each
secondstage.Oncethesystemhasbeendepressurizeddisconnecttherststageregulator
fromthevalve.Allinletsoftherststagemustbeclosedwiththeprovidedprotectivecaps
toavoidtheentryofdebris,dirtormoisture.
Ifthecylindervalveisequippedwithareservesystemtherodshouldbeputinthe“open”
position(fullylowered)toindicatethatthecylinderneedstobelled.
7. CARE AND MAINTENANCE
7.1 Care
• Afteruse,especiallyinchlorinatedwater,theAIR2shouldbesetuponascubatank,
pressurized,andthoroughlyrinsedwithfreshwater.
• Shouldwateraccidentallyenterthelowpressurehose,connecttheregulatortothe
cylinder,openthevalveandpressthesecondstagepurgebuttondownuntilallwater
hasbeenexpelled.
• Dryyourregulatorcompletelyinadryventilatedplace,awayfromheatanddirect
sunlight.
!WARNING
Open the cylinder valve only with a regulator connected to the cylinder or slowly
turning the cylinder valve knob as to control the air ow.
• Letwaterrunintothemouthpieceandowouttheexhaustport.
• PriortoeverydivecarefullychecktheAIR2forairleakageandproperfunctioning.

12
7.2 Maintenance
Maintenance procedures beyond the simple operations described in the preceding
paragraphshouldnotbecarriedoutbytheuser.
A SCUBAPRO regulator must be overhauled by an authorized SCUBAPRO technician
every2years.Theservicingoverhauliscompulsorytopreservethelimitedlifetimewarranty.
PleaserefertotheJohnsonOutdoorswarrantyconditions.
SCUBAPROalsorecommendsthathighlyusedregulators(100dives/year+)undergoan
inspectionevery6monthsandanoverhauleveryyear.
ServicingisavailablethroughSCUBAPROAuthorizeddealersidentiedbytheSELECTED
DEALERSCUBAPROsignorbyvisitingwww.scubapro.com
!WARNING
DO NOT USE silicone grease on the diaphragm and/or the exhaust valve, it may
cause damage to the silicone rubber.
Max Intermediate Pressure is 1.103 kPa (160 psig).
Using the AIR2 with rst stages exceeding this intermediate pressure may cause air
leakage from the mouthpiece and ination of the buoyancy vest.
AIR2SPECIFICATIONS
Materials:
- Case FiberglassReinforcedNylon
- Diaphragm SiliconeRubber
- ExhaustValve SiliconeRubber
- Spring StainlessSteel
- DemandValve Brass,ChromePlated
Performance:
Weight
(lessquick-disconnectandhose)
207grams(6.7oz.)
Average Flow Rates:
• DemandRegulator 1400liters/minute(at200bar)
• Inator
150liters/minute
(withintermediatepressureat6bar)
DemandValveDesign Downstream,VenturiAssisted
Hose
• Hose Lenght 70cm.standard
• Thread 3/8”standard

SUBSIDIARIES
SCUBAPRO AMERICAS
Johnson Outdoors Diving LLC
1166-A Fesler Street
El Cajon, CA 92020 - USA
SCUBAPRO ASIA PACIFIC
608 Block B, M.P.Industrial Centre
18 Ka Yip Street, Chaiwan
Hong Kong
SCUBAPRO AUSTRALIA
Unit 21 380 Eastern Valley Way
Chatswood NSW 2067-
Australia
SCUBAPRO FRANCE
(France, UK, Spain, Export:
Netherlands, Belgium, Scandinavia)
Nova Antipolis Les Terriers Nord
175 Allée Belle Vue
06600 Antibes - France
SCUBAPRO GERMANY & E. Europe
Johnson Outdoors
Vertriebsgesellschaft mbH
Bremer Straße 4
90451 Nuremberg
GERMANY
SCUBAPRO ITALY
Via Tangoni, 16
16030 Casarza Ligure (GE) - Italy
SCUBAPRO SWITZERLAND
Bodenäckerstrasse 3
CH-8957 Spreitenbach
Switzerland
For additional information about our distributors and dealers, see our web site at: www.scubapro.com
© 2008 by Johnson Outdoors Inc.

P/N 45.029.106 • Rev. C- 07/2019 • Artbook 15500/19
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