BOCK HA44e User manual

 
 
 



BOCK HA44e (LG)





BOCK®

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Contents Page
1 Safety 4
 1.1 Identicationofsafetyinstructions
 1.2 Qualicationsrequiredofpersonnel
 1.3 Generalsafetyinstructions
 1.4 Intendeduse
2 Safetyinstructionsforuseofammablerefrigerants 6
 2.1 Safetyinstructions
2.2 Qualicationsrequiredofpersonnel
3 Product description 7
 3.1 Shortdescription
 3.2 Nameplate
 3.3 Typekey
 3.4 TypekeyLGcompressors
 4 Areasofapplication 10
 4.1 Refrigerants
 4.2 Oilcharge
 4.3 Limitsofapplication
About these instructions
Readtheseinstructionsbeforeassemblyandbeforeusingthecompressor.Thiswillavoidmisunder-
standings andpreventdamage.Improperassemblyanduseofthecompressorcanresultinserious
orfatalinjury.
Observethesafetyinstructionscontainedintheseinstructions.
Theseinstructionsmustbepassedontotheendcustomeralongwiththeunitinwhichthecompres-
sorisinstalled.
BockGmbH
72636Frickenhausen
BockGmbH
Benzstraße7
72636Frickenhausen
Germany
Phone+4970229454-0
Fax+4970229454-137
www.bock.de
[email protected]
Manufacturer
Contact

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Contents Page
5AreasofapplicationatLGcompressors 11
 5.1 Refrigerants
 5.2 Oilcharge
 5.3 Limitsofapplication
6Compressorassembly 12
 6.1 Storageandtransport
 6.2 Settingup
 6.3 Pipeconnections
 6.4 Pipes
 6.5 Layingsuctionanspressurelines
 6.6 Operatingtheshut-offvalves
 6.7 Operatingmodeofthelockableserviceconnections
 6.8 Suctionpipelterandlterdrier
 7 Electricalconnection 16
 7.1 Informationforcontactorandmotorcontactorselection
 7.2 Standardmotor,designfordirectorpartialwindingstart
 7.3 Basiccircuitdiagramforpartialwindingstartwithstandardmotor
 7.4 Specialmotor:designfordirectorstar-deltastart
 7.5 Basiccircuitdiagramforstar-deltastartwithspecialmotor
 7.6 ElectronictriggerunitINT69G
 7.7 ConnectingofthetriggerunitINT69G
 7.8 FunctionaltestofthetriggerunitINT69G
 7.9 ElectronictriggerunitINT69GonLGcompressors
 7.10 Oilsumpheater(accessories)
 7.11 OilsumpheateronLGcompressors
 7.12 Capacityregulator(accessories)
 7.13 Fanmotor
 8 Commissioning 28
 8.1 Preparationsforstart-up
 8.2 Pressureintegritytest
 8.3 Leaktest
 8.4 Evacuation
 8.5 Refrigerantcharge
 8.6 Start-up
 8.7 Avoidslugging
 8.8 Connectionofoillevelregulator
9 Maintenance 31
 9.1 Preparation
 9.2 Worktobecarriedout
 9.3 Sparepartsrecommendation/accessories
 9.4 Lubricants/oil
 9.5 Decommissioning
 9.6 Additionalinformationwhenusingammablerefrigerants
 10 Accessories 33
 10.1Capacityregulator
 11 Technicaldata 35
 12 Dimensionsandconnections 36
 13 Declarationofincorporation 37
14 Service 38

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1|Safety
1.2 Qualicationsrequiredofpersonnel
DANGER Indicatesadangeroussituationwhich,ifnotavoided,
willcauseimmediatefatalorseriousinjury.
WARNING Indicatesadangeroussituationwhich,ifnotavoided,
maycausefatalorseriousinjury.
CAUTION Indicatesadangeroussituationwhich,ifnotavoided,
maycausefairlysevereorminorinjury.
ATTENTION Indicatesasituationwhich,ifnotavoided,
maycausepropertydamage.
INFO Importantinformationortipsonsimplifyingwork.
WARNING Inadequatelyqualiedpersonnel posestheriskofaccidents,the
consequencebeingseriousorfatalinjury.Workoncompressors
isthereforereservedforpersonnelwhichisqualiedtoworkon
pressurizedrefrigerantsystems:
•For example, a refrigeration technician, refrigeration mechatronic
engineer. As well as professions with comparable training, which
enables personnel to assemble, install, maintain and repair
refrigerationandair-conditioningsystems.Personnelmustbecapable
ofassessingtheworktobecarriedoutandrecognisinganypotential
dangers.
1.1 Identicationofsafetyinstructions:

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1|Safety
1.4 Intended use
1.3 Generalsafetyinstructions
WARNING Riskofaccidents.
Refrigeratingcompressorsarepressurisedmachines and as such
callforheightenedcautionandcareinhandling.
The maximum permissible overpressure must not be exceeded,
evenfortestingpurposes.
Riskofburns!
- Dependingontheoperatingconditions,surfacetemperaturesof
over60°Conthedischargesideorbelow0°Conthesuctionside
canbereached.
-Avoidcontactwithrefrigerantnecessarily.
Contactwithrefrigerantcancausesevereburnsandskin
damage.
WARNING The compressor may not be used in potentially explosive
environments!
These assembly instructions describe the standard version of the compressor named in the title
manufactured by Bock. Bock refrigerating compressors are intended for installation in a machine
(withintheEUaccordingtotheEUDirectives2006/42/ECMachineryDirective,2014/68/EUPressure
EquipmentDirective).
Commissioningispermissibleonlyifthecompressorhasbeeninstalledinaccordancewiththeseas-
semblyinstructionsandtheentiresystemintowhichitisintegratedhasbeeninspectedandapproved
inaccordancewithlegalregulations.
Thecompressorsareintendedforuseinrefrigerationsystemsincompliancewiththelimitsof
application.
Onlytherefrigerantspeciedintheseinstructionsmaybeused.
Anyotheruseofthecompressorisprohibited!

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2 |Safety instructions for use of
flammable refrigerants
DANGER • Explosion and fire risk! Synthetic HFO refrigerants
are colourless, combustible gases which occur
naturally and which are explosive in a certain blend!
•HFOrefrigerantsareclassiedintothesafetygroupA2L(hardly-
inammablerefrigerant)accordingtoEN378.
Astheyareheavierthanair,theoperatinglocationmustbeabove
groundleveltoallowunrestricteddischargeofthegas.
• By means of a risk and hazard analysis, appropriate technical
measuresaretobeidentifiedinordertoachievesufficientrisk
reduction. If necessary, a classification of the hazardous areas
accordingtoEN60079-10-1shouldbecarriedout.Iftherefriger-
antconcentrationexceedsthevalueof25%ofthelowerflamma-
bilitylimit(LEL),allequipmentinthehazardousareawhichisnot
permittedforoperationinhazardousareasmustbeimmediately
switchedoffwithoutanyvoltage.
•Useonlysuitableequipmentapprovedforflammablerefrigerants.
•Observethenationalregulations.
INFO Semi-hermeticcompressorsaretobeclassifiedas"technically
tight"(seee.g.TRBS2152part2/TRGS722).
2.1 Safety instructions
2.2 Qualicationsrequiredofpersonnel
WARNING Inadequatelyqualiedpersonnelposes theriskofaccidents,the
consequence being serious or fatal injury. Work on compressors
isthereforereservedforpersonnelwhichisqualiedinhandling
ammablerefrigerants.

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• Semi-hermeticfour-cylinderreciprocatingcompressorwithoilpumplubrication.
• Flange-mounteddrivemotoronthecompressorcase.
• Speciallyordeepcoolingwithair-cooledmotoranddirectsuctionatthecylinder.
3|Product description
Nameplate
Fig.1
3.1 Short description
Valveplate Cylinder
cover
DimensionandconnectionvaluescanbefoundinChapter12.
Transport
eyelet
Oilpump
Discharge
shut-offvalve
Oilsightglass
Airguidehood
withfan
Fig.2
Terminalbox
Suctionshutoff
valve

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HA 44 e 665-4X
¹)HA-HermeticAir-cooledfordeep-freezing
²)X- Esteroilcharge(HFCrefrigerant,e.g.R404A/R507)
Numberofpoles
Sweptvolume
e-series
Numbersofcylinders
Size
Oilcharge²)
Series¹)
3|Product description
Fig.3
3.2 Nameplate (example)
3.3 Typekey (example)
1 Typedesignation 6 Voltage,circuit,frequency
2 Machinenumber 7 Nominalrotationspeed
3 maximumoperatingcurrent 8 Displacement
4 Startingcurrent(rotorblocked) 9 Voltage,circuit,frequency
 Y:Partwinding1 10 Nominalrotationspeed
 YY:Partwindings1and2 11 Displacement
5 ND(LP):max.admissibleoperatingpressure  12 Oiltypelledatthefactory
Lowpressureside 13 Protectionclass
HD(HP):max.admissibleoperatingpressure Electricalaccessoriescanchange
Highpressureside theIPprotectionclass!
Observethelimitsofapplication
 diagrams!
50 Hz
}
60 Hz
}
19,7 A
57,7
SE 55 69,2
101 A 174 A
AZ12345A001
HA44e/665-4
IP44
20,3A
Bock GmbH, Benzstr. 7
72636 Frickenhausen, Germany
BOCK
BOCKlubE55

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HA 44 e 475 LGLT 9X
3.4 Typkey LGcompressor (example)
¹)HA-HermeticAir-cooledfordeep-freezing
²)X -Esteroilcharge
Low-GWP
Engineperformanceinhp
Enginefordeep-freezing
Sweptvolume
e-series
Numbersofcylinders
Size
Oilcharge²)
Series¹)
3|Product description

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ATTENTION Theoillevelmustbeinthe
visiblepartofthesightglass;
damagetothecompressor
ispossibleifoverfilledor
underfilled!
4 |Areas of application
4.1 Refrigerants
• HFKW/HFC:  R404A/R507
• (H)FCKW/(H)CFC: R22
ATTENTION Compressor operation is possible within the operating limits.
ThesecanbefoundinBockcompressorselectiontool(VAP)under
vap.bock.de.Observetheinformationgiventhere.
-Max.permissibleambienttemperature45°C.
-Max.permissibledischargeendtemperature140°C.
-Max.permissibleswitchingfrequency12x/h.
-Aminimumrunningtimeof3min.steady-statecondition
(continuousoperation)mustbeachieved.
Foroperationwithcapacityregulator:
- Continuousoperation,whenthecapacityregulatorisactivated,
isnotpermissibleandcancausedamagetothecompressor.
-Thesuctiongassuperheattemperaturemayneedtobereduced
orsetindividuallywhenoperatingneartothethreshold.
-Whenthecapacityregulatorisactivated,thegasvelocityin
thesystemcannotundercertaincircumstancesensurethat
sufcientoilistransportedbacktothecompressor.
Foroperationwithfrequencyconverter:
- Themaximumcurrentandpowerconsumptionmustnotbe
exceeded.Inthecaseofoperationabovethemainsfrequency,
theapplicationlimitcanthereforebelimited.
When operating in the vacuum range, there is a danger of air
enteringonthesuctionside.Thiscancausechemicalreactions,
apressureriseinthecondenserandanelevatedcompressed-gas
temperature.Preventtheingressofairatallcosts!
4.3 Limitsofapplication
max.
min.
oillevel
Fig.4
1,6Ltr.
~
~
 Thecompressorsarelledatthefactorywiththefollowingoiltype:
-forR404A/R507 BOCKlubE55
 -forR22 BOCKlubA46
Compressorswithesteroilcharge(BOCKlubE55)aremarkedwithanXinthetype
designation(e.g.HAX34e/315-4).
4.2 Oilcharge
INFO Forrefilling,werecommendtheaboveoiltypes.
Alternatives:see chapter 9.4

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4 |Areas of application
5 |Areas of application at LG compressors
5.3 Limitsofapplication
ATTENTION Compressor operation is possible within the operating limits.
ThesecanbefoundinBockcompressorselectiontool (VAP)under
vap.bock.de. Observe the information given there and the follo-
wingnotes:
- Min.pressuregastemperature≥50°C(min.20Kovercondens-
ingtemperature). Suctiongassuperheatingoncompressorent-
ranceshouldbemin.7-10K,mustbeincreasedifnecessary
-Min.oiltemperature≥ 30°C.
-Operationinthevacuumrangeisnotpermitted.
During operation in the vacuum range, there is a danger of air
entering on the suction side. This can cause chemical reactions,
pressureriseinthecondenserandanexcessivepressuregastem-
peratureaswellasshiftingoftherefrigerantignitionlimitintothe
criticalrange.Avoidabsolutelyanyentryofair!
Usealowpressureswitch!Selectashut-offpointmin.50Pahigher
thantheprevailingsurroundingpressure!
5.1 Refrigerants
• HFOrefrigerants:  R455A,R454C
5.2Oilcharge
Thecompressorsarefactory-chargedwiththefollowingoiltype:
 LGCompressors:BOCKlubE55
Maximumpermissibleoperating
pressure(LP/HP)1):19/28bar
1) LP=LowpressureHP=Highpressure
Maximumpermissibleoperating
pressure(LP/HP)1):19/28bar
1) LP=LowpressureHP=Highpressure

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 Setuponanevensurfaceorframewithsufcientload-
bearingcapacity.
 Singlecompressorpreferablyonvibrationdamper.
 Duplexandparallelcircuitsalwaysrigid.
 Provideadequateclearanceformaintenancework.
 Ensureadequatecompressorventilation.
 Thecompressormustnotbeintheairstreamtoanother
 componentoftherefrigerationsystem(e.g.condenser).
 Thecoolingofthedrivemotormustbereliableguaranteed.
 Donotuseinacorrosive,dusty,dampatmosphereora
combustibleenvironment.
F
E
D
C
B
A
1 2
3
4
F
E
D
C
4
3
2
1
A
B
Tol.-Ang. DIN ISO 2768-mK
Ra Rz
Maß Passung
Freigabe
Alternativbezug:
Baumustergeprüft
Teil inaktiv
Lieferantenzeichnung
-
-
K.-Auftrag:
PL:
Zeichnung ungültig
Entwicklungsstand
Teil keine Serie
120
400
±0.5
über 0.5
bis 6
Benzstraße 7 - 72636 Frickenhausen - Germany - www.bock.de
-
-
Unbemaßte Radien:
-
Diese Zeichnung ist unser Eigentum!
Sie darf ohne unsere Genehmigung weder nach-
gebildet, vervielfältigt, oder Dritten Personen zu-
gänglich gemacht werden. Der Nachbau nach
dieser Zeichnung, oder an Hand der nach dieser
Zeichnung hergestellten Gegenstände durch den
Abnehmer oder Dritte ist nicht gestattet.
Wir behalten uns alle Rechte, gemäß DIN ISO 16016
an dieser Zeichnung vor.
Bearb.
Datum
Änderungs-Nr.
Werkstoff:
Ausgangsteil, bzw. Rohteil:
--
Gepr.
Name Datum
19.04.
Werkstückkanten
DIN ISO 13715
Ersatz für:
Ersetzt durch:
Erstellt
2010
Geprüft
-
Kurz
Zone
1/x
Oberflächenbehandlung / Härte:
-
Blatt:
Änderungsbeschreibung
400
Benennung:
±0.8
1000
30 6
-
±0.3
120
30
±0.2
Zeichn.-Nr. Teile-Nr.
Oberflächenangaben ISO 1302
x.xxxx-xxxxx.x
Zust.
Gußtoleranzen:
Gewicht: (kg)
±0.1
Maßstab:
1:1
Wasserwaage
für Indesign
Der Lieferant muß sicherstellen, dass die Ware in
einwandfreiem Zustand angeliefert wird (Korrosions-
schutz, Verpackung für sicheren Transport).
Rz 25
Rz 160
s
25
z y x w u t
0,05
Rz 1,6
0,3
0,7
1,6
2
Rz 16
6,3
Rz 63
Rz 6,3
Rz 12,5
F:\user\kurz\3D Sachen\3D Teile\Zeichnungen\Wasserwaage
Sunprotection:Ifthecompressorissetupoutdoors,ithas
tobeprotectedfromdirectsunlight.
6|Compressor assembly
INFO Newcompressorsarefactory-lledwithinertgas.Leavethisser-
vicechargeinthecompressorforaslongaspossible and prevent
the ingress of air. Check the compressor for transport damage
beforestartinganywork.
ATTENTION Attachments(e.g.pipeholders,additionalunits,fasteningparts,
etc.)directlytothecompressorarenotpermissible!
6.2 Settingup
?
6.1 Storageandtransport
 Usetransporteyelet.
 Donotliftmanually!
 Useliftinggear!
 Storageat(-30°C)-(+70°C),maximumpermissiblerelativehumidity
10%-95%,nocondensation
 Donotstoreinacorrosive,dusty,vaporousatmosphereorinacom-
bustibleenvironment.

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Fig.5:graduated
internaldiameter
6.4 Pipes
 Pipesandsystemcomponentsmustbecleananddryinsideandfreeofscale,swarfandlayersof
rustandphosphate.Onlyuseair-tightparts.
 Lay pipes correctly. Suitable vibration compensators must be provided to prevent pipes being
crackedandbrokenbyseverevibrations.
 Ensureaproperoilreturn.
 Keeppressurelossestoanabsoluteminimum.
6.3 Pipeconnections
ATTENTION Damagepossible.
Superheatingcandamagethevalve.
Removethepipesupportsfromthevalveforsoldering.
Onlysolderusinginertgastoinhibitoxidationproducts(scale).
6|Compressor assembly
6.5 Layingsuctionandpressurelines
ATTENTION Improperlyinstalledpipescancausecracksandtears,theresult
beingalossofrefrigerant.
INFO Proper layout of the suction and discharge lines directly after
the compressor is integral to the system’s smooth running and
vibrationbehaviour.
The pipe connectionshavegraduatedinsidediameterssothatpipeswith
standartmillimetreandinchdimensionscanbeused.
Theconnectiondiametersoftheshut-offvalvesareratedformaximum
compressoroutput.Theactualrequiredpipecrosssectionmustbe
matchedtotheoutput.Thesameappliesfornon-returnvalves.

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6|Compressor assembly
Fig.6
As short as
possible
Rigid
fixedpoint
Aruleofthumb: Alwayslaytherstpipesectionstartingfromtheshut-offvalvedownwards and
paralleltothedriveshaft.
6.6 Operatingtheshut-offvalves
 Beforeopeningorclosingtheshut-offvalve,releasethevalvespindlesealbyapprox.¼ofaturn
counter-clockwise.
 Afteractivatingtheshut-offvalve,re-tightentheadjustablevalvespindlesealclockwise.
Fig.7 Fig.8
Valvespindleseal
Release Tighten

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6|Compressor assembly
Pipeconnection
Pipeconnection
6.7 Operatingmodeofthelockableserviceconnections
Fig.9
Openingtheshut-offvalve:
Spindle:turntotheleft(counter-clockwise)asfarasitwillgo.
—>Shut-offvalvecompletelyopened/serviceconnectionclosed.
Theconnectionwhichcannotbeshutoffisintendedforsafetydevices.
Fig.10
Openingtheserviceconnection
Spindle:Turn½-1turntotherightclockwise.
—>Serviceconnectionopened/shut-offvalveopened.
Theconnectionwhichcannotbeshutoffisintendedforsafetydevices.
Serviceconnection
closed
Connection
blocked
Spindle
Connectioncannot
beshutoff
Connectioncannot
beshutoff
Serviceconnection
opened
Spindle Connection
open
Compressor
Compressor
Afteractivatingthespindle,generallytthespindleprotectioncapagainandtightenwith14-16Nm.
Thisservesasasecondsealingfeatureduringoperation.
For systems with long pipes and higher degree of contamination, a lter on the suction-side is
recommended.Thelterhastobebereneweddependingonthedegreeofcontamination(reduced
pressureloss).
Moisture in the refrigeration circuit can lead to crystal and hydrate formation. For this reason, we
recommendusingalterdrierandasightglasswithamoistureindicator.
6.8Suctionpipelterandlterdrier

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7|Electrical connection
7.1 Informationforcontactorandmotorcontactorselection
Allprotectionequipment,switchingandmonitoringdevicesmustcomplywiththelocalsafetyregula-
tionsandestablishedspecications(e.g.VDE)andregulationsaswellasthemanufacturer’sspeci-
cations.Motorprotectionswitchesarerequired!Motorcontactors,feedlines,fusesandmotor
protectionswitches mustberatedaccording tothe maximumoperating current(see nameplate).
Formotorprotection,useacurrent-independent,time-delayedoverloadprotectiondeviceformonitor-
ingallthreephases.Adjusttheoverloadprotectiondevicesothatitmustbeactuatedwithin2hours
at1.2timesthemaximumworkingcurrent.
INFO Connectthecompressormotorinaccordancewiththecircuitdiagram
(seeinsideofterminalbox).
Usesuitablecableentrypointofthecorrectprotectiontype(see
nameplate)forroutingcablesintotheterminalbox.Insertthestrain
reliefsandpreventchafemarksonthecables.
Comparethevoltageandfrequencyvalueswiththedataforthe
mainspowersupply.
Onlyconnectthemotorifthesevaluesarethesame.
DANGER Riskofelectricshock!Highvoltage!
Onlycarryoutworkwhentheelectricalsystemisdisconnected
fromthepowersupply!
7 Electricalconnection
ATTENTION When attaching accessories with an electrical cable,aminimum
bendingradiusof3xthecablediametermustbemaintainedfor
layingthecable.

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7.2 Standardmotor,designfordirectorpartialwindingstart
Designationonthenameplate
Y/YY
Compressorswiththismarkingaresuitablefordirectorpartialwindingstart.Themotorwindingis
subdividedintotwoparts:Partwinding1=50%andpartwinding2=50%.Thiswindingdivision
reducesthestart-upcurrentneededforapartwindingstarttoapprox.50%ofthatforadirectstart.
INFO Amechanicalunloadedstartwithbypasssolenoidvalveis 
notrequired.
7|Electrical connection

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Οnderung
2.a
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.02.2009
bauknecht
26.11.2020
Urspr.
2
Ers. f.
3
Ers. d.
4
PW INT69 HA44 neu
567
BOCK COMPRESSORS
8
=
+
9
Bl.
6.d Bl.
5.b
5.a
Anschlußkasten Verdichter
BT1
INT69
DELTA- P II
QA1
L1 L2 L3 N PE
FC1.1
I> I> I>
QA2
1U1
1V1
1W1
PE
EC1
M
Y/YY
2U1
2V1
2W1
FC1.2
I> I> I>
QA3
FC1.1
FC1.2
FC2
SF1
BP2
P>
QA2
BP3
P
QA2
KF1
KF1
QA2
L1.1
L2.1
L3.1
L1.2
N
PE
QA3
BT4
BT2
Θ
1112 14
L N B1 B2
12
11
10
9
8
7
6
5
4
3
2
1
Θ
vio bn bu gr
Θ
EB1
pk og
21
20
BT3
Θ
N 1 2 PE
GQ1
M
1~
7.3 Basiccircuitdiagramforpartialwindingstartwithstandardmotor
BP2 Highpressuresafetymonitor
BP3 Safetychain(high/lowpressuremonitoring)
BT1 Coldconductor(PTCsensor)motorwinding
BT2 Thermalprotectionthermostat (PTCsensor)
BT3
Oiltemperaturesensor
BT4 Releaseswitch(thermostat)
DELTA-PII OildifferentialpressuresensorDELTA-PII(accessorie)
EB1 Oilsumpheater
EC1 Compressormotor
Fig.11
50% 50%
Οnderung
6.a
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.02.2009
bauknecht
19.06.2017
Urspr.
2
Ers. f.
3
Ers. d.
4
D/S INT69 HA44 neu
567
BOCK COMPRESSORS
8
=
+
9
Bl.
7.0 Bl.
6.c
6.b
Anschlußkasten Verdichter
BT1
INT69G
DELTA- P II
QA1
L1 L2 L3 N PE
1U1
1V1
1W1
PE
2U1
2V1
2W1
FC1.1
FC1.2
FC2
SF1
BP2
P>
BP3
P
QA2
L1.1
L2.1
L3.1
L1.2
N
PE
BT3
BT2
Θ
1112 14
L N B1 B2
12
11
10
9
8
7
6
5
4
3
2
1
Θ
vio bn bu gr og pk
Θ
1 2
PE
EB1
FC1.1
I> I> I>
1
2
QA2
FC1.2
I> I> I>
3
4
5
6
1
2
QA4
Y
3
4
5
6
1
2
QA3
D
3
4
5
6
EC1
M
3˜
QA2
QA2
2.7
2.1.5
2.1.7
2.2.5
2.2.7
6.a.7
13 14 2.5
QA4 KF1
QA4
QA3
2.8
2.1.8
2.2.8
6.a.8
KF1
QA3
QA4
2.8
2.1.8
2.2.8
6.a.8
KF1
GQ1
M
3˜
Compressorterminalbox

D
GB
F
E
19
96418-06.2021-DGbFEIRu
Οnderung
2.a
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.02.2009
bauknecht
26.11.2020
Urspr.
2
Ers. f.
3
Ers. d.
4
PW INT69 HA44 neu
567
BOCK COMPRESSORS
8
=
+
9
Bl.
6.d Bl.
5.b
5.a
Anschlußkasten Verdichter
BT1
INT69
DELTA- P II
QA1
L1 L2 L3 N PE
FC1.1
I> I> I>
QA2
1U1
1V1
1W1
PE
EC1
M
Y/YY
2U1
2V1
2W1
FC1.2
I> I> I>
QA3
FC1.1
FC1.2
FC2
SF1
BP2
P>
QA2
BP3
P
QA2
KF1
KF1
QA2
L1.1
L2.1
L3.1
L1.2
N
PE
QA3
BT4
BT2
Θ
1112 14
L N B1 B2
12
11
10
9
8
7
6
5
4
3
2
1
Θ
vio bn bu gr
Θ
EB1
pk og
21
20
BT3
Θ
N 1 2 PE
GQ1
M
1~
FC1.1/1.2 Motorprotectionswitch
FC2 Controlpowercircuitfuse
GQ1 Fanmotor
INT69G ElectronictriggerunitINT69G
KF1 Delayrelayforcontactorswitchover
QA1 Mainswitch
QA2 Mainscontactor(partwinding1)
QA3 Mainscontactor(partwinding2)
SF1 Controlvoltageswitch
DANGER Explosionrisk!
ElectronictriggerINT69G
atLGcompressorshasto
be installed outside any
dangerarea!
Seealsochapter7.9.

20
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96418-06.2021-DGbFEIRu
7|Electrical connection
400 V
Direktstart YY Teilwicklungsstart Y/YY
1V1 1W11U1
2W12V12U1
L3L2L1 L3L2L1
L3L2L1
1V1 1W11U1
2W12V12U1
Direct start YY PartwindingstartY/YY
Themotoriswiredfordirectstart(YY)atthefactory.ForpartwindingstartY/YY,thebridgesmust
beremovedandthemotorfeedlineconnectedaccordingtothecircuitdiagram:
ATTENTION Failure to do this results in opposed rotary elds and results in
damagetothemotor.Afterthemotorstartsupviapartialwinding
1,partialwinding2mustbeswitchedonafteramaximumdelay
ofonesecond.Failuretocomplycanadverselyaffecttheservice
lifeofthemotor.