GEA Bock HG12P/75-4 User manual

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engineering for a better world
GEA Bock Compressor HG12P
Assembly instructions
HG12P/75-4 HG12P/60-4 S HGX12P/75-4 HGX12P/60-4 S
HG12P/90-4 HG12P/75-4 S HGX12P/90-4 HGX12P/75-4 S
HG12P/110-4 HG12P/90-4 S HGX12P/110-4 HGX12P/90-4 S
HG12P/110-4 S HGX12P/110-4 S

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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
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.gea.com
Manufacturer
Contact
Contents Page

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Contents Page
3 Areas of application 8
 3.1 Refrigerants
 3.2 Oilcharge
 3.3 Limitsofapplication
4Compressor assembly 10
 4.1 Storageandtransport
 4.2 Settingup
 4.3 Pipeconnections
 4.4 Pipes
 4.5 Layingsuctionandpressurelines
 4.6 Operatingtheshut-offvalves
 4.7 Operatingmodeofthelockableserviceconnections
5 Electrical connection 13
 5.1 Informationforcontactorandmotorcontactorselection
 5.2 Connectionofthedrivingmotor
 5.3 Circuitdiagramfordirectstart230VΔ/400VY-->with MP10
 5.4 ElectronictriggerunitMP10
 5.5 ConnectionoftheelectronictriggerunitMP10
 5.6 FunctionaltestoftheelectronictriggerunitMP10
 5.7 Circuitdiagramfordirectstart230VΔ/400VY-->with INT69 G
 5.8 ElectronictriggerunitINT69G
 5.9 ConnectionoftheelectronictriggerunitINT69G
 5.10 FunctionaltestoftheelectronictriggerunitINT69G
6 Commissioning 22
 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 24
 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 26
9 Dimensions and connections 27
10 Declaration of conformity and installation 28
11 Service 29

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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GEA Bock.GEABockrefrigerating compressorsareintended for installation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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|Product description
• Semi-hermetictwo-cylinderreciprocatingcompressorwithoilpumplubrication.
• Suctiongascooleddrivemotor.
2.1 Short description
Fig.1
Fig.2
Oilsightglass
Valveplate
Cylindercover
Discharge
shut-offvalve
Oilpump
Terminalbox
Suction
shut-offvalve
Drivesection
Motorsection
DimensionandconnectionvaluescanbefoundinChapter9
Transporteyelet
Nameplate

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2|Product description
2.2 Name plate (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
5 ND(LP):max.admissibleoperating 10 Nominalrotationspeed
 pressure(g)Lowpressureside 11 Displacement
 HD(HP): max.admissibleoperating  12 Oiltypelledatthefactory
pressur e(g)Highpressureside 13 Terminalboxprotectiontype
Observe the limits of application Electrical accessories can change
diagrams! the IP protection class!
50 Hz
}
60 Hz
}
/
HG 21 P 110- 4 SX
2.3 Type key (example)
¹) HG-HermeticGas-cooled(suctiongas-cooled)forthenormal-/airconditioningapplications
²) X
-Esteroilcharge(HFCrefrigerant,e.g.R134a,R404A/R507,R407C)
³) AdditionaldeclarationforPluscomcompressors
4) S - Morepowerfulmotor,e.g.forair-conditioningapplications
Motorvariant4)
Numberofpoles
Sweptvolume
³)
Numbersofcylinders
Size
Oilcharge²)
Series¹)
Typschild (Beispiel)
1
2
3
4
513
12
7
11
6
10
8
9
1 Typbezeichnung
2 Maschinennummer
3 maximaler Betriebsstrom
4 Anlaufstrom (Rotor blockiert)
5 ND (LP): max. zulässiger Stillstandsdruck
Saugseite
HD (HP): max. zulässiger Betriebsdruck
Hochdruckseite
Einsatzgrenzendiagramme beachten!
50 Hz
60 Hz
6 Spannung, Schaltung, Frequenz
7 Nenndrehzahl
8 Hubvolumen
9 Spannung, Schaltung, Frequenz
10 Nenndrehzahl
11 Hubvolumen
12 Werkseitig eingefüllte Ölsorte
13 Schutzart Klemmenkasten
10,6/6,1A
45A 26A
9,4
11,3
HGX12P/110-4S
AS35830A001
SE 55
AS35830A001
GEA Bock GmbH
72636 Frickenhausen, Germany
1
2
3
4
5
6
7
8
9
10
12
13
11
Fig.3

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3|Areas of application
 Thecompressorsarelledatthefactorywiththefollowingoiltype:
-forR134a,R404A/R507,R407C FUCHSRenisoTritonSE55
 -forR22 FUCHSRenisoSP46
Compressorswithesteroilcharge(FUCHSRenisoTritonSE55)aremarkedwithanXinthetype
designation(e.g.HGX12P/110-4).
3.1 Refrigerants
• HFKW/HFC:  R134a,R404A/R507,R407C
• (H)FCKW/(H)CFC: R22
3.2 Oil charge
3.3 Limits of application
INFO For refilling, we recommend the above oil types.
Alternatives: see lubricants table, Chapter 7.5
ATTENTION The oil level must be in the
visible part of the sight glass;
damage to the compressor is
possible if overfilled or under-
filled! Fig.4
max.
min.
0,5Ltr.
oillevel ~
~
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.
- Permissible ambient temperature (-20°C) - (+60°C).
- Max. permissible discharge end temperature 140°C.
-Max.permissibleswitchingfrequency8x/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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!

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Evaporationtemperature(°C)
Condensingtemperature(°C)
Suctiongassuperheat(K)
Suctiongastemperature(°C)
3|Areas of application
Design for other
areasonrequest
R134a
R407C
R404A/R507
R22
Fig.5
Fig.6
Fig.7
Fig.8
Unlimitedapplicationrange
Supplementarycoolingor
reducedsuctiongastemperature
Supplementarycoolingand
reducedsuctiongastemperature
MotorversionS
(morepowerfulmotor)
Max. permissible operating
pressure (LP/HP)1): 19/28 bar
1) LP=Lowpressure
HP=Highpressure

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4|Compressor assembly
 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.
 Donotuseinacorrosive,dusty,dampatmosphereora
combustibleenvironment.
Fig.11
Fig.12
Fig.13
F
E
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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
4.2 Setting up
?
4.1 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.
Fig.10
Fig.9
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.
ATTENTION Attachments (e.g. pipe holders, additional units, fastening parts,
etc.) directly to the compressor are not permissible!
ATTENTION Damage possible.
Do not solder as long as the compressor is under pressure.
Superheating can damage the valve. Remove the pipe supports
therefore from the valve for soldering and accordingly cool the
valve body during and after soldering.
Only solder using inert gas to inhibit oxidation products (scale).
4.3 Pipe connections

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4|Compressor assembly
4.4 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.
Fig.15
Rigid
fixed point
As short as
possible
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.14:graduated
internaldiameter
4.5 Laying suction and pressure lines
A rule of thumb:Alwayslaytherstpipesectionstartingfromtheshut-offvalvedownwards and
parallel to the drive shaft.
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.

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4|Compressor assembly
Pipeconnection
Pipeconnection
4.7 Operating mode of the lockable service connections
Fig.18
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.
Fig.19
Opening the service connection
Spindle:Turn½-1turntotherightclockwise.
—>Serviceconnectionopened/shut-offvalveopened.
Serviceconnec-
tionclosed
Connection
blocked
Spindle
Serviceconnec-
tionopened
Spindle Connection
open
Compressor
Compressor
 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.16 Fig.17
4.6 Operating the shut-off valves
Valve spindle seal
Release
Tighten

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5|Electrical connection
5.1 Information for contactor and motor contactor selection
Allprotectiondevicesandswitchingormonitoringunitsmustbettedinaccordancewiththelocal
safetyregulationsandestablishedspecications(e.g.VDE)aswellaswiththemanufacturer’sinfor-
mation. Motor protection switches are required! Motor contactors, feed lines, fuses and motor
protectionswitchesmustberatedonthebasisofthemaximumworkingcurrent(seenameplate).
Formotorprotectionuseacurrent-dependentandtime-delayedoverloadprotectiondeviceformoni-
toringallthreephases.Settheoverloadprotectiondevicesothatitmustbeactuatedwithin2hours,
ifthereis1.2timesthemax.workingcurrent.
5.2 Connection of the driving motor
Thecompressorisdesignedwithamotorforstar-deltacircuits.
Designationonthenameplate Stickerontheterminalbox
∆/ Y
Star-delta start-up is only possible on 230 V voltage supply. Example:
230 V ∆
Direct start Star-delta start
400 V Y
Direct start only
Elektrischer Anschluss Electrical connection Raccordement électrique ∆/ Y
96027-11.06-DGbF
∆
Niedere Spannung
Low voltage
Bas voltage
Y
Hohe Spannung
High voltage
Haut voltage
L3
L1 L2
L3
L1 L2
Elektrischer Anschluss Electrical connection Raccordement électrique ∆/ Y
96027-11.06-DGbF
∆
Niedere Spannung
Low voltage
Bas voltage
Y
Hohe Spannung
High voltage
Haut voltage
L3
L1 L2
L3
L1 L2
L1 L2 L3
L1 L2 L3
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!
5 Electrical connection
INFO The connection examples shown refer to the standard version. In
thecaseofspecialvoltages,theinstructionsafxedtotheterminal
box apply.

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5.3 Circuit diagramm for direct start 230 V ∆/ 400 V Y --> compressor with MP10
BT1 Coldconductor(PTCsensor)motorwinding
BT2 Thermalprotectionthermostat(PTCsensor)
FC1 Loadcircuitsafetyswitches
FC2 Controlpowercircuitfuse
BP1 Safetychain(high/lowpressuremonitoring)
BP2 Releaseswitch(thermostat/pressostat)
01234
56789
Urspr.
Ers.f.
Ers.d.
Anlagenbezeichnung
Οnderung
Vorblatt:
Datum
1
Name
Bearb.
Gepr.
Norm
HG34P
R410A/Co2
200308
Kommission:
Gesamtblatt:
Datum
27.05.2015
27.05.2015
11
Kelich
Name
Zeichnungsnummer:
Kundennummer:
Kunde:
Anlage
Bl. Gruppe:
=
2INT69_24V
Ort
Bl.
Fbl.
+
1 (ohne HA)
2HG34 FU+Box
27.05.2015ESSG_A1_35_01D
Klemmenkasten Verdichter
MP10
A1 Alarm Motorschutz
A2 Übertemperatur BT1, BT2
A3 Alarm Hochdruck
BT1
QA1
FC1
I> I> I>
QA2
PE
FC1
A1
X1 L1 L1 N N 43 43 11 12 14
L S M
X2123456
FC2
SF1
BT2
A2
BP1
P
PE
A3
BP2
P<
PE
QA2
12
EB1
QA2
3 4
L1.1
L2.1
L3.1
L1.2
N
PE
-EC1 3~
M
Θ
L1 L2 L3 N PE
Compressorterminalbox
Fig.20

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QA1 Mainswitch
SF1 Controlvoltageswitch
EC1 Compressormotor
QA2 Compressorcontactor
MP10 ElectronictriggerunitMP10
EB1 Oilsumpheater
01234
56789
Urspr.
Ers.f.
Ers.d.
Anlagenbezeichnung
Οnderung
Vorblatt:
Datum
1
Name
Bearb.
Gepr.
Norm
HG34P
R410A/Co2
200308
Kommission:
Gesamtblatt:
Datum
27.05.2015
27.05.2015
11
Kelich
Name
Zeichnungsnummer:
Kundennummer:
Kunde:
Anlage
Bl. Gruppe:
=
2INT69_24V
Ort
Bl.
Fbl.
+
1 (ohne HA)
2HG34 FU+Box
27.05.2015ESSG_A1_35_01D
Klemmenkasten Verdichter
MP10
A1 Alarm Motorschutz
A2 Übertemperatur BT1, BT2
A3 Alarm Hochdruck
BT1
QA1
FC1
I> I> I>
QA2
PE
FC1
A1
X1 L1 L1 N N 43 43 11 12 14
L S M
X2123456
FC2
SF1
BT2
A2
BP1
P
PE
A3
BP2
P<
PE
QA2
1 2
EB1
QA2
3 4
L1.1
L2.1
L3.1
L1.2
N
PE
-EC1 3~
M
Θ
L1 L2 L3 N PE
A1 Alarmmotorprotection
A2 OverheatingBT1,BT2
A3 Alarmhighpressure

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5| Electrical connection
5.4 Electronic trigger unit MP10
Thecompressormotoristtedwithcoldconductortemperaturesensors(PTC)connectedtotheelec-
tronictriggerunitMP10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.
5.5 Connection of the trigger unit MP10
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, interrupt the mains voltage. This unlocks the restart prevention
device and the LEDs H1 and H2 go out.
INFO Connect the trigger unit MP10 in accordance with the circuit dia-
gram. Protect the trigger unit with a delayed-action fuse (FC2) of
max. 4 A. In order to guarantee the protection function, install the
triggerunitastherstelementinthecontrolpowercircuit.
ATTENTION
Terminals 1 - 6 on the trigger
unit MP10 and terminals PTC 1
and PTC 2 on the compressor
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 termi-
nals 11, 12, 14 and 43.
PTC1 PTC2
Terminalbox
Fig.21

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5| Electrical connection
ThecompressorandthetriggerunitMP10areoperationalwhentheH3LED(green)lights.
5.6 Function test of the trigger unit MP10
Pos Procedure LED H1 LED H2 LED H3
red red green
1•Interrupt power supply (L1 or SF1) OFF OFF OFF
•Releasethemotortemperaturesensorconnection(1or2)
•Releasethehotgastemperaturesensor(ifinstalled)(3or4)
2•Restore the power supply (L1 or SF1) ON
•Functioncheckofmotortemperaturesensor:operational ON
•Functioncheckofhotgastemperaturesensor:operational ON
3•Interrupt power supply again (L1 or SF1) OFF OFF OFF
•Reconnectterminals1or2and/or3or4
4•Restore the power supply (L1 or SF1): OFF OFF ON
•MP10isoperationalagain
Beforestart-up,troubleshootingormakingchangestothecontrolpowercircuit,checkthefunctionality
ofthetriggerunit:

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01234
56789
Urspr.
Ers.f.
Ers.d.
Anlagenbezeichnung
Οnderung
Vorblatt:
Datum
2INT69
Name
Bearb.
Gepr.
Norm
HG34P
R410A/Co2
200308
Kommission:
Gesamtblatt:
Datum
27.05.2015
27.05.2015
11
Kelich
Name
Zeichnungsnummer:
Kundennummer:
Kunde:
Anlage
Bl. Gruppe:
=
2INT69_24V
Ort
Bl.
Fbl.
+
2INT69 (Ohne HA)
2INT69HR60
27.05.2015ESSG_A1_35_01D
Klemmenkasten Verdichter
A1 Alarm Motorschutz
A2 Übertemperatur BT1, BT2
A3 Alarm Hochdruck
INT69 G
BT1
QA1
FC1
I> I> I>
QA2
PE
FC1
A1
FC2
SF1
A2
BP1
P
PE
A3
BP2
P<
PE
QA2
12
EB1
QA2
3 4
L1
L2
L3
L1.1
N
PE
1112 14
L N B1 B2
-EC1 3~
M
Θ
BT2
L1 L2 L3 N PE
5.7 Circuit diagramm for direct start 230 V ∆/ 400 V Y --> compressor with INT69 G
Fig.22
BT1 Coldconductor(PTCsensor)motorwinding
BT2 Thermalprotectionthermostat(PTCsensor)
FC1 Loadcircuitsafetyswitches
FC2 Controlpowercircuitfuse
BP1 Safetychain(high/lowpressuremonitoring)
BP2 Releaseswitch(thermostat/pressostat)
Compressorterminalbox

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01234
56789
Urspr.
Ers.f.
Ers.d.
Anlagenbezeichnung
Οnderung
Vorblatt:
Datum
2INT69
Name
Bearb.
Gepr.
Norm
HG34P
R410A/Co2
200308
Kommission:
Gesamtblatt:
Datum
27.05.2015
27.05.2015
11
Kelich
Name
Zeichnungsnummer:
Kundennummer:
Kunde:
Anlage
Bl. Gruppe:
=
2INT69_24V
Ort
Bl.
Fbl.
+
2INT69 (Ohne HA)
2INT69HR60
27.05.2015ESSG_A1_35_01D
Klemmenkasten Verdichter
A1 Alarm Motorschutz
A2 Übertemperatur BT1, BT2
A3 Alarm Hochdruck
INT69 G
BT1
QA1
FC1
I> I> I>
QA2
PE
FC1
A1
FC2
SF1
A2
BP1
P
PE
A3
BP2
P<
PE
QA2
1 2
EB1
QA2
3 4
L1
L2
L3
L1.1
N
PE
1112 14
L N B1 B2
-EC1 3~
M
Θ
BT2
L1 L2 L3 N PE
QA1 Mainswitch
SF1 Controlvoltageswitch
EC1 Compressormotor
QA2 Compressorcontactor
INT69G ElectronictriggerunitINT69G
EB1 Oilsumpheater
A1 Alarmmotorprotection
A2 OverheatingBT1,BT2
A3 Alarmhighpressure

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5.8 Electronic trigger unit INT69 G
5.9 Connection of the trigger unit INT69 G
The compressor motor is tted with cold conductor temperature sensors (PTC) connected to the
electronic trigger unit INT69 G in the terminal box. In case of excess temperature in the motor
winding,theINT69Gdeactivatesthemotorcontactor.Oncecooled,itcanberestartedonlyifthe
electroniclockoftheoutputrelay(terminalsB1+B2)isreleasedbyinterruptingthesupplyvoltage.
Thehotgassideofthecompressorcanalsobeprotectedagainstovertemperatureusingthermal
protectionthermostats(accessory).
The unit trips when an overload or inadmissible operating conditions occur. Find and remedy
the cause.
INFO Therelay switchingoutput is executedas a oatingchangeover
contact.Thiselectricalcircuitoperatesaccordingtothequiescent
current principle, i.e. the relay drops into a the idle position and
deactivates the motor contactor even in case of a sensor break or
open circuit.
INFO Connect the trigger unit INT69 G in accordance with the circuit dia-
gram. Protect the trigger unit with a delayed-action fuse (FC2) of
max. 4 A. In order to guarantee the protection function, install the
triggerunitastherstelementinthecontrolpowercircuit.
Οnderung
Klebeschilder
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
04.12.2009
Kelich
22.05.2015
Urspr.
2
Ers. f.
3
Ers. d.
4
Schaltplan
567
BOCK COMPRESSORS
8
=
+
9
Bl.
MP10 INt69 Bl.
MP10 INt69
INT69 G
Motor Protection MP10
Steuerstrom-
kreis
L
N
Steuerstrom-
kreis
L N 1112 14 B1 B2OG OG
+
-
BT1
Θ
X1 L1 L1 N N 43 43 11 12 14
L S M
X2123456
R1 R2
+
-
BT1
Θ
+
-
BT2
Θ
+
-
BT2
Θ
L
N
Terminalbox
Fig.23
ATTENTION
Measure circuit BT1 and BT2
(PTC sensor) must not come
into contact with external
voltage.
This would destroy the trigger
unit INT69 G and PTC sensors.
Controlcircuit
5| Electrical connection