GEA HGX5/725-4 R134a User manual

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engineering for a better world GEA Refrigeration Technologies
Bock Compressor HGX5 R134a
Assembly instructions
HGX5/725-4 R134a
HGX5/830-4 R134a
HGX5/945-4 R134a
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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 Product description 6
 2.1 Shortdescription
 2.2 Nameplate
 2.3 Typekey
3 Areas of application 8
 3.1 Refrigerants
 3.2 Oilcharge
 3.3 Limitsofapplication
4Compressor assembly 10
 4.1 Settingup
 4.2 Pipeconnections
 4.3 Pipes
 4.4 Layingsuctionandpressurelines
 4.5 Operatingtheshut-offvalves
 4.6 Operatingmodeofthelockableserviceconnections
5 Electrical connection 13
 5.1 Informationforcontactorandmotorcontactorselection
 5.2 Standardmotor,designfordirectorpartwindingstart
 5.3 Basiccircuitdiagramforpartwindingstartwithstandardmotor
 5.4 Specialmotor:designfordirectorstar-deltastart
 5.5 Basiccircuitdiagramforstar-deltastartwithspecialmotor
 5.6 ElectronictriggerunitMP10
 5.7 ConnectingthetriggerunitMP10
 5.8 FunctionaltestofthetriggerunitMP10
 5.9 Oilsumpheater(accessories)
6 Commissioning 23
 6.1 Preparationsforstart-up
 6.2 Pressurestrengthtest
 6.3 Leaktest
 6.4 Evacuation
 6.5 Refrigerantcharge
 6.6 Start-up
 6.7 Avoidingslugging
 6.8 Connectionofoillevelregulator
7 Maintenance 25
 7.1 Preparation
 7.2 Worktobecarriedout
 7.3 Sparepartsrecommendation
 7.4 Accessories
 7.5 Extractfromthelubricantstable
 7.6 Decommissioning
8 Technical data 27
9 Dimensions and connections 28
10 Declaration of conformity and installation 30
11 Service 31
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.
GEABockGmbH
72636Frickenhausen
GEABockGmbH
Benzstraße7
72636Frickenhausen
Germany
Telephone+49702294540
Fax +4970229454137
[email protected]
www.bock.de
Manufacturer
Contact

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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 Product description 6
 2.1 Shortdescription
 2.2 Nameplate
 2.3 Typekey
3 Areas of application 8
 3.1 Refrigerants
 3.2 Oilcharge
 3.3 Limitsofapplication
4Compressor assembly 10
 4.1 Settingup
 4.2 Pipeconnections
 4.3 Pipes
 4.4 Layingsuctionandpressurelines
 4.5 Operatingtheshut-offvalves
 4.6 Operatingmodeofthelockableserviceconnections
5 Electrical connection 13
 5.1 Informationforcontactorandmotorcontactorselection
 5.2 Standardmotor,designfordirectorpartwindingstart
 5.3 Basiccircuitdiagramforpartwindingstartwithstandardmotor
 5.4 Specialmotor:designfordirectorstar-deltastart
 5.5 Basiccircuitdiagramforstar-deltastartwithspecialmotor
 5.6 ElectronictriggerunitMP10
 5.7 ConnectingthetriggerunitMP10
 5.8 FunctionaltestofthetriggerunitMP10
 5.9 Oilsumpheater(accessories)
6 Commissioning 23
 6.1 Preparationsforstart-up
 6.2 Pressurestrengthtest
 6.3 Leaktest
 6.4 Evacuation
 6.5 Refrigerantcharge
 6.6 Start-up
 6.7 Avoidingslugging
 6.8 Connectionofoillevelregulator
7 Maintenance 25
 7.1 Preparation
 7.2 Worktobecarriedout
 7.3 Sparepartsrecommendation
 7.4 Accessories
 7.5 Extractfromthelubricantstable
 7.6 Decommissioning
8 Technical data 27
9 Dimensions and connections 28
10 Declaration of conformity and installation 30
11 Service 31

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1|Safety
1.2 Qualicationsrequiredofpersonnel
1.3 General safety instructions
WARNING! Inadequately qualied personnel poses the risk of accidents, the
consequence being serious or fatal injury. Work on compressors
mustthereforeonlybeperformedbypersonnelwiththequalica-
tions listed below:
 •For example, a refrigeration technician, refrigeration mechatron-
icsengineer.Aswellasprofessionswithcomparabletraining,which
enablepersonneltoassemble,install,maintainandrepairrefrigeration
andair-conditioningsystems.Personnelmustbecapableofassessing
theworktobecarriedoutandrecognisinganypotentialdangers.
WARNING! •Refrigerating compressors are pressurised machines and
thereforerequireparticularcautionandcareinhandling.
•Risk of burns! Depending on the operating conditions, surface
temperatures of over 60 °C on the pressure side or below 0 °C on
the suction side can be reached.
•The maximum permissible overpressure must not be exceeded,
even for testing purposes.
1.1 Identicationofsafetyinstructions:
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.

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1|Safety
TheseassemblyinstructionsdescribethestandardversionoftheHGX5R134amanufacturedby
Bock.Thecompressoris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!
TheBockrefrigeratingcompressornamedinthetitleisintendedforinstallinginamachine(within
theEUaccordingtotheEUDirectives2006/42/ECMachineryDirective,97/23/ECPressureEquipment
Directiveand2006/95/EC–LowVoltageDirective).
Commissioningisonlypermissibleifthe compressorhas beeninstalled inaccordance withthese
assembly instructions and the entire system into which it is integrated has been inspected and
approvedinaccordancewithlegalregulations.
1.4 Intended use
WARNING! The compressor may not be used in potentially
explosive environments!

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2|Product description
• Semi-hermeticfour-cylinderreciprocatingcompressorwithsuction-gascooleddrivemotor.
• Flange-mounteddrivemotoronthecompressorcase.
• Applicationrange:normalrefrigeratingandair-conditioningwithR134a.
Fig.1
2.1 Short description
DimensionandconnectionvaluescanbefoundinChapter9
Nameplate
Valveplate
Cylindercover
Terminalbox
Transporteyelet
Discharge
shut-offvalve
Oilpump
Suctionshut-
offvalve
Oilsightglass
Drivesection
Motorsection

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2|Product description
/
HG 5945-4 X
Fig.2
2.2 Name plate (example)
2.3 Typekey (example)
¹)HG-HermeticGas-cooled(suctiongas-cooled)
²)X -Esteroilcharge
1
2
3
4
5
6
7
8
9
10
11
12
13
R134a
HGX5/945-4 R134a
AS12345-001
SE 55
33 A
110 A 141 A
Version
Numberofpoles
Sweptvolume
Size
Oilcharge²)
Series¹)
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  12 Oiltypelledatthefactory
pressur e (g)Lowpressureside 13 Terminalboxprotectiontype
 HD(HP): max.admissibleoperating Electrical accessories can change
pressur e(g)Highpressureside  the IP protection class!
Observe the limits of application
diagrams!
50 Hz
}
60 Hz
}
GEA Bock GmbH
72636 Frickenhausen, Germany

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3|Areas of application
Thecompressorsarelledatthefactorywiththefollowingoiltype:
FUCHSRenisoTritonSE55
Compressorswithesteroilcharge(FUCHSRenisoTritonSE55)aremarkedwithanXinthetype
designation(e.g.HGX5/945-4R134a).
3.1 Refrigerants
• HFKW/HFC:  R134a
3.2 Oil charge
ATTENTION! Compressor operation is possible within the operating limits
shown in the diagrams. Please note the signicance
of the shaded areas. Thresholds should not be selected as design
or continuous operation points.
- 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 supplementary cooling:
- Use only oils with high thermal stability.
- Avoid continuous operation near the threshold.
For operation with capacity regulator:
- The suction gas superheat temperature may need to be reduced
or set individually when operating near to the threshold.
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!
3.3 Limits of application
INFO! Forrefilling,werecommendtheaboveoiltypes.
Alternatives: seelubricantstable,Chapter7.5.
The oil level must be in the visible
part of the sight glass; damage
to the compressor is possible if
overfilled or underfilled!
ATTENTION!
Fig.3
max.oillevel
min.oillevel

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3|Areas of application
Design for other
areasonrequest
Unlimitedapplicationrange
Supplementarycoolingor
reducedsuctiongastemperature
R134a
Fig.4
Evaporationtemperature(°C)
Condensingtemperature(°C)
Suctiongassuperheat(K)
Suctiongastemperature(°C)
Max. permissible operating
pressure (LP/HP)1): 19/28 bar
1) LP=Lowpressure
HP=Highpressure

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4|Compressor assembly
4.1 Setting up
 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.
 Usetransporteyelet.
 Donotliftmanually!
 Useliftinggear!
 Provideadequateclearanceformaintenancework.
 Ensureadequatecompressorventilation.
 Donotuseinacorrosive,dusty,dampatmosphereora
combustibleenvironment.
Fig.5
Fig.6
Fig.7
Fig.8
ATTENTION! Superheating can damage the valve.
Remove the pipe supports from the valve for soldering.
Only solder using inert gas to inhibit oxidation products (scale).
4.2 Pipe connections
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.
Fig.9:graduated
internaldiameter
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
INFO! Newcompressorsarefactory-lledwithinertgas(3barnitrogen).
Leave this service 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.

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4.4 Laying suction and pressure lines
INFO! Proper layout of the suction and pressure lines directly after the
compressor is integral to the smooth running and vibration behaviour
of the system.
ATTENTION! Improperly installed pipes cancause cracks and tears whichcan
resultinalossofrefrigerant,
4|Compressor assembly
4.3 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.
A rule of thumb:
Alwayslaytherstpipesectionstartingfromtheshut-offvalvedownwards and
parallel to the drive shaft.
Fig.10
As short as
possible
Rigid
fixed point
1
2
3
4
5
6
7
8
9
10
1 1 12
13
1
2
3
4
5
6
7
8
9
10
1 1 12
13

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4|Compressor assembly
4.5 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.
Pipeconnection
Pipeconnection
4.6 Operatingmodeofthelockableserviceconnections
Fig.13
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.14
Opening the service connection
Spindle:Turn½-1turnclockwise.
—>Serviceconnectionopened/shut-offvalveopened.
Theconnectionwhichcannotbeshutoffisintendedforsafetydevices.
Serviceconnec-
tionclosed
Connection
blocked
Spindle
Connectioncannotbe
shutoff
Connectioncannotbe
shutoff
Serviceconnec-
tionopened
Spindle Connection
open
Compressor
Compressor
Fig.11 Fig.12
Valve spindle seal
Release
Tighten

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96180-09.2013-DGbFEI
5|Electrical connection
5 Electrical connection
  DANGER! Highvoltage!Riskofelectricshock!Onlycarryoutworkwhenthe
electrical system is disconnected from the power supply!
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.
5.2 Standardmotor,designfordirectorpartwindingstart
Designationonthenameplate Stickerontheterminalbox
Y/YY
Compressorswiththismarkingaresuitablefordirectorpartialwindingstart.Themotorwindingis
subdividedintotwoparts:Partialwinding1=66%andpartwinding2=33%.Thiswindingdivision
reducesthestart-upcurrentneededforapartwindingstarttoapprox.65%ofthatforadirectstart.
INFO! A mechanical unloaded start with bypass solenoid valve is
 notrequired.
5.1 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ca-
tions.Motorprotectionswitchisrequired!Motorcontactors,feedlines,fusesandmotorprotection
switchesmustberatedaccordingtothemaximumoperatingcurrent(seenameplate).
Usethefollowingoverloadprotectiondevice:
Acurrent-dependenttime-delayedoverloadprotectiondeviceformonitoringofallthreephases,not
sethigherthantheratedcurrentofthemachine,whichmustrespondat1.2timesthesetcurrent
within2hoursandmustnothaverespondedat1.05timesthesetcurrentwithin2hours,oranother
comparabledevice.

14
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96180-09.2013-DGbFEI
5.3 Basic circuit diagram for part winding start with standard motor
Fig.15
nderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.Feb.2009
Kelich
09.M„r.2010
Urspr.
2
Ers..
3
Ers.d.
4
PWMP10
5 6 7
BKMPRESSRS
8
=
+
9
Bl.
1
Bl.
1
XSS
Q1
L1 L2 L3 N PE
AnschluastenVerdichter
I=66%
F1.1
K1
1
2
1
3
4
2
5
6
3
1U1
1V1
1W1
PE
M
Y/YY
M1
R1
2U1
2V1
2W1
I=33%
F1.2
K2
1
2
4
3
4
5
5
6
6
X1 L1 L1 N N 43 43 11 12 14
L S M
X2 1 2 3 4 5 6
7
F1.1
F1.2
8
R2
4A
F2
S1
9 10
MP10
11
F5
K1
12
T2
13
N
Pl
14
L
15
M
16
S
P>
F3
17 18 19
K1
P
F4
20
K1
K1T
K2
21 22
K1T
P<
B1
23 24
K1
25
E1
26
L1.1
L2.1
L3.1
L1.2
N
PE
R1  Coldconductor(PTCsensor)motorwinding
R2  Thermalprotectionthermostat(PTCsensor)
F1.1/1.2  2motorprotectionswitches(66%/33%ofIAtotal)
F2 Controlpowercircuitfuse
F3  Highpressuresafetymonitor
F4  Safetychain(high/lowpressuremonitoring)
F5  Oildifferentialpressuremonitor
B1  Releaseswitch(thermostat)
Compressorterminalbox

D
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96180-09.2013-DGbFEI
nderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.Feb.2009
Kelich
09.M„r.2010
Urspr.
2
Ers..
3
Ers.d.
4
PWMP10
5 6 7
BKMPRESSRS
8
=
+
9
Bl.
1
Bl.
1
XSS
Q1
L1 L2 L3 N PE
AnschluastenVerdichter
I=66%
F1.1
K1
1
2
1
3
4
2
5
6
3
1U1
1V1
1W1
PE
M
Y/YY
M1
R1
2U1
2V1
2W1
I=33%
F1.2
K2
1
2
4
3
4
5
5
6
6
X1 L1 L1 N N 43 43 11 12 14
L S M
X2 1 2 3 4 5 6
7
F1.1
F1.2
8
R2
4A
F2
S1
9 10
MP10
11
F5
K1
12
T2
13
N
Pl
14
L
15
M
16
S
P>
F3
17 18 19
K1
P
F4
20
K1
K1T
K2
21 22
K1T
P<
B1
23 24
K1
25
E1
26
L1.1
L2.1
L3.1
L1.2
N
PE
Q1  Mainswitch
M1  Compressormotor
K1  Mainscontactor(partwinding1)
K2  Mainscontactor(partwinding2)
K1T  Delayrelaymax.1s
S1  Controlvoltageswitch
E1  Oilsumpheater

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5|Electrical connection
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.
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:
400 V
Direktstart YY Teilwicklungsstart Y/YY
1V1 1W11U1
2W12V12U1
L3L2L1 L3L2L1
L3L2L1
1V1 1W11U1
2W12V12U1
400 V
Direct start YY Part winding start Y/YY
400 V
Direktstart YY Teilwicklungsstart Y/YY
1V1 1W11U1
2W12V12U1
L3L2L1 L3L2L1
L3L2L1
1V1 1W11U1
2W12V12U1

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5|Electrical connection
5.4 Special motor: design for direct or star-delta start
Amechanicalunloadedstartwithbypasssolenoidvalve(accessories)isrequiredforthe
star-delta start.
Designationonthenameplate Stickerontheterminalbox
∆/ Y
Star-delta start-up is only possible for 230 V power supply. Example:
230 V ∆
Direct start Star-delta start
400 V Y
Direct start only
5.4 Sondermotor: Ausführung für Direkt- oder Stern-Dreieck-Anlauf
Für den Stern-Dreieck-Anlauf ist eine mechanische Anlaufentlastung mit Bypass-Magnetventil
(Zubehör) erforderlich.
Bezeichnung auf dem Typschild Aufkleber auf Klemmenkasten
∆/ Y
Stern-Dreieck-Anlauf ist nur im Spannungsbereich ∆(230 V) möglich. Beispiel:
230 V ∆
Direktstart Stern-Dreieck-Start
L3L1
V1 W1
U1
V2
U2
W2
L1 L2 L3
L2
V1 W1
U1
V2
U2
W2
L3L2L1
400 V Y
nur Direktstart
V1 W1U1
V2U2W2
L1 L2 L3
5.4 Sondermotor: Ausführung für Direkt- oder Stern-Dreieck-Anlauf
Für den Stern-Dreieck-Anlauf ist eine mechanische Anlaufentlastung mit Bypass-Magnetventil
(Zubehör) erforderlich.
Bezeichnung auf dem Typschild Aufkleber auf Klemmenkasten
∆/ Y
Stern-Dreieck-Anlauf ist nur im Spannungsbereich ∆(230 V) möglich. Beispiel:
230 V ∆
Direktstart Stern-Dreieck-Start
L3L1
V1 W1
U1
V2
U2
W2
L1 L2 L3
L2
V1 W1
U1
V2
U2
W2
L3L2L1
400 V Y
nur Direktstart
V1 W1U1
V2U2W2
L1 L2 L3
5.4 Sondermotor: Ausführung für Direkt- oder Stern-Dreieck-Anlauf
Für den Stern-Dreieck-Anlauf ist eine mechanische Anlaufentlastung mit Bypass-Magnetventil
(Zubehör) erforderlich.
Bezeichnung auf dem Typschild Aufkleber auf Klemmenkasten
∆/ Y
Stern-Dreieck-Anlauf ist nur im Spannungsbereich ∆(230 V) möglich. Beispiel:
230 V ∆
Direktstart Stern-Dreieck-Start
L3L1
V1 W1
U1
V2
U2
W2
L1 L2 L3
L2
V1 W1
U1
V2
U2
W2
L3L2L1
400 V Y
nur Direktstart
V1 W1U1
V2U2W2
L1 L2 L3
5.4 Sondermotor: Ausführung für Direkt- oder Stern-Dreieck-Anlauf
Für den Stern-Dreieck-Anlauf ist eine mechanische Anlaufentlastung mit Bypass-Magnetventil
(Zubehör) erforderlich.
Bezeichnung auf dem Typschild Aufkleber auf Klemmenkasten
∆/ Y
Stern-Dreieck-Anlauf ist nur im Spannungsbereich ∆(230 V) möglich. Beispiel:
230 V ∆
Direktstart Stern-Dreieck-Start
L3L1
V1 W1
U1
V2
U2
W2
L1 L2 L3
L2
V1 W1
U1
V2
U2
W2
L3L2L1
400 V Y
nur Direktstart
V1 W1U1
V2U2W2
L1 L2 L3

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96180-09.2013-DGbFEI
5.5 Basic circuit diagram for star-delta start with special motor
Fig.16
nderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.Feb.2009
Kelich
09.M„r.2010
Urspr.
2
Ers..
3
Ers.d.
4
D/S
MP10
5 6 7
BKMPRESSRS
8
=
+
9
Bl.
1
Bl.
1
XSS
Q1
L1 L2 L3 N PE
F1.1
K1
1
2
F1.2
1
AnschluastenVerdichter
3
4
2
5
6
3 PE
U1
V1
W1
M
3
~
M1
Y
K3
1
2
3
4
R1
5
6
W2
U2
V2
D
K2
1
2
4
3
4
5
5
6
6
X1 L1 L1 N N 43 43 11 12 14
L S M
X2 1 2 3 4 5 6
7
F1.1
F1.2
8
R2
4A
F2
S1
9 10
MP10
11
F5
K1
12
T2
13
N
Pl
14
L
15
M
16
S
K1
K1
K3
P>
F3
K4T
K3
K2
17
K4T
K2
K3
18 19
K4T
P
F4
20
K5T
AL
21 22
K5T
P<
B1
23 24
K1
25
E1
26
L1.1
L2.1
L3.1
L1.2
N
PE
Compressorterminalbox
R1  Coldconductor(PTCsensor)motorwinding
R2  Thermalprotectionthermostat(PTCsensor)
F1.1/1.2  2motorprotectionswitches
F2 Controlpowercircuitfuse
F3  Highpressuresafetymonitor
F4  Safetychain(high/lowpressuremonitoring)
F5  Oildifferentialpressuremonitor
B1  Enablingswitch(thermostat)
Q1  Mainswitch

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96180-09.2013-DGbFEI
nderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.Feb.2009
Kelich
09.M„r.2010
Urspr.
2
Ers..
3
Ers.d.
4
D/S
MP10
5 6 7
BKMPRESSRS
8
=
+
9
Bl.
1
Bl.
1
XSS
Q1
L1 L2 L3 N PE
F1.1
K1
1
2
F1.2
1
AnschluastenVerdichter
3
4
2
5
6
3 PE
U1
V1
W1
M
3
~
M1
Y
K3
1
2
3
4
R1
5
6
W2
U2
V2
D
K2
1
2
4
3
4
5
5
6
6
X1 L1 L1 N N 43 43 11 12 14
L S M
X2 1 2 3 4 5 6
7
F1.1
F1.2
8
R2
4A
F2
S1
9 10
MP10
11
F5
K1
12
T2
13
N
Pl
14
L
15
M
16
S
K1
K1
K3
P>
F3
K4T
K3
K2
17
K4T
K2
K3
18 19
K4T
P
F4
20
K5T
AL
21 22
K5T
P<
B1
23 24
K1
25
E1
26
L1.1
L2.1
L3.1
L1.2
N
PE
M1  Compressormotor
K1  Mainscontactor
K2  ∆-contactor
K3  Y-contactor
K4T  DelayrelayS/Dchangeover
K5T  Delayrelay,startunloader
S1  Controlvoltageswitch
AL  Startunloader
E1  Oilsumpheater

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5|Electrical connection
ATTENTION!
Terminals 1 - 6 on the trigger
unit MP 10 and terminals PTC
1 and PTC 2 on the compres-
sor terminal board must not
come into contact with mains
voltage. This would destroy the
trigger unit and PTC sensors.
The supply voltage at L1-N
(+/- for DC 24 V version) must
be identical to the voltage at
terminals11,12,14and43.
5.6 Electronic trigger unit MP 10
The compressor motor is tted with cold conductor temperature sensors (PTC) connected to the
electronictriggerunitMP10intheterminalbox.ReadinesstooperateissignalledbytheH3LED
(green)afterthepowersupplyisapplied.Inthecaseofexcesstemperatureinthemotorwinding,the
unitswitchesoffthecompressorandtheH1LEDlightsred.
Thehotgassideofthecompressorcanalsobeprotectedagainstovertemperatureusingathermal
protectionthermostat(accessory).TheH2LED(red)isprovidedfortheprotectionfunction.
The unit trips when an overload or inadmissible operating conditions occur. Find and remedy
the cause.
5.7 Connection of the tripping unit MP10
INFO! Connect the trigger unit MP10 in accordance with the circuit dia-
gram. Protect the trigger unit with a delayed-action fuse (F) of max.
4A.Inordertoguaranteetheprotectionfunction,installthetrigger
unitastherstelementinthecontrolpowercircuit.
Temperaturemonitoringconnections:
Motorwinding:   Terminals1-2
Thermalprotectionthermostat: Terminals3-4
Restartprevention:   Terminals5-6
INFO! Theunithasarestartpreventiondevice.Afteryouhaverectiedthe
fault, either interrupt the mains voltage or acknowledge with the
external alarm reset switch S1 (see circuit diagram, Chapter 5.5).
ThisunlockstherestartpreventiondeviceandtheLEDsH1andH2
go out.
Fig.17
Terminalboard