GEA Bock Bock HA5 User manual

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GEA Bock HA5
HA5/725-4 HAX5/725-4
HA5/830-4 HAX5/830-4
HA5/925-4 HAX5/925-4
Assembly instructions
09911-11.2015-Gb
Translation of the original instructions
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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 [phone]
Fax [phone]
[email protected]
www.gea.com
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 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 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)
5.10 Fan motor
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

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1|Safety
1.2 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
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.
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.
Contents Page
 8 Technicaldata 27
9 Dimensions and connections 28
10 Declaration of installation 30
11 Service 31

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1|Safety
These assembly instructions describe the standard version of the HA5 manufactured by GEA. 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 GEA 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,2014/68/EUPressureEquipment
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!
1.3 General safety instructions
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.

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2|Product description
• 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.
Name plate
Fig. 1
2.1 Brief description
Oil sight glass
Valve plate Cylinder
cover
Terminal box
Suction shut-
off valve
Dimension and connection values can be found in Chapter 9
Transport eyelet
Discharge
shut-off valve
Oil pump
Air guide hood
with fan
Drive section
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2|Product description
/
HA 5 945- 4 X
Fig. 2
2.2 Name plate (example)
2.3 Typekey (example)
¹) HA - Hermetic Air-cooled (for deep-freezing)
²) X - Ester oil charge (HFC refrigerant, e.g. R404A/R507)
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 pressur e 12 Oiltypelledatthefactory
(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
}
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HAX5/945-4
AS12345-001
26,0A
SE 55
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:
- for R404A/R507 FUCHS Reniso Triton SE 55
- for R22 FUCHS Reniso SP 46
Compressorswithesteroilcharge(FUCHSRenisoTritonSE55)aremarkedwithanXinthetypedesignation
(e.g. HAX5/945-4).
3.1 Refrigerants
• HFKW / HFC: R404A/R507
• (H)FCKW / (H)CFC: R22
3.2 Oilcharge
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
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 ambient temperature 30 °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!
3.3 Limits of application

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Unlimited
application range
Reduced suction gas
temperature
Evaporation temperature (°C)
Condensing temperature (°C)
Suction gas superheat (K)
Suction gas temperature (°C)
Fig. 5
Fig. 4
3|Areas of application
Designforother
areasonrequest
R404A
R507
R22
Max. permissible operating
pressure (LP/HP)1):19/28bar
1) LP = Low pressure
HP = High pressure

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4|Compressor assembly
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.
 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.
Do not use in a corrosive, dusty, damp atmosphere or a
combustible environment.
Fig. 8
Fig. 9
Fig. 10
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1 2
3
4
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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. 7
Fig. 6
ATTENTION! Attachments(e.g.pipeholders,additionalunits,fasteningparts,
etc.)directlytothecompressorarenotpermissible!
 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.

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4.5 Laying suction and pressure lines
INFO! Proper layout of the suction and pressure lines directlyafter 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,
Aruleofthumb:
Alwayslaytherstpipesectionstartingfromtheshut-offvalvedownwardsand
paralleltothedriveshaft.
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.
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).
4.3 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. 11: graduated
internal diameter
Fig. 12
Asshortas
possible
Rigid
fixed point

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4|Compressor assembly
4.6 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. 13 Fig. 14
Pipe connection
Pipe connection
4.7 Operatingmodeofthelockableserviceconnections
Fig. 15
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. 16
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 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
Valve spindle seal
Release
Tighten
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.

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5|Electrical connection
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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 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.
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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5.3 Basiccircuitdiagramforpartwindingstartwithstandardmotor
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 Atotal)
F2 Control power circuit fuse
F3 High pressure safety monitor
F4 Safety chain (high/low pressure monitoring)
F5 Oil differential pressure monitor
C1 Fan operating capacitor
B1 Release switch (thermostat)
Fig. 17
nderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
02.Feb.2009
Kelich
10.Feb.2010
Urspr.
2
Ers.f.
3
Ers.d.
4
PWMP10
5 6 7
BOCKCOMPRESSORS
8
=
+
9
Bl.
1
Bl.
1
XSS
Q1
L1 L2 L3 NPE
AnschluákastenVerdichter
I=66%
F1.1
K1
1
2
1
3
4
2
5
6
3
1U1
1V1
1W1
M
Y/YY
M1
R1
2U1
2V1
2W1
I=33%
F1.2
K2
1
2
4
3
4
5
5
6
6PE
X1 L1 L1 N N 43 43 11 12 14
LSM
X2123456
R2
F1.1
F1.2
4A
F2
S1
7
MP10
8
M
~
1
M1.1
K1
9
X3
1
10
2
C1
3
F5
4
T2 N
P™l
L
P>
F3
M S
11 12 13
K1
P
F4
14
K1
K1T
K2
15 16
K1T
P<
B1
17 18
K1
19
E1
20
L1.1
L2.1
L3.1
L1.2
N
PE
Compressor terminal box

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Q1 Main switch
M1 Compressor motor
M1.1 Fan 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
nderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
02.Feb.2009
Kelich
10.Feb.2010
Urspr.
2
Ers.f.
3
Ers.d.
4
PWMP10
5 6 7
BOCKCOMPRESSORS
8
=
+
9
Bl.
1
Bl.
1
XSS
Q1
L1 L2 L3 NPE
AnschluákastenVerdichter
I=66%
F1.1
K1
1
2
1
3
4
2
5
6
3
1U1
1V1
1W1
M
Y/YY
M1
R1
2U1
2V1
2W1
I=33%
F1.2
K2
1
2
4
3
4
5
5
6
6PE
X1 L1 L1 N N 43 43 11 12 14
LSM
X2123456
R2
F1.1
F1.2
4A
F2
S1
7
MP10
8
M
~
1
M1.1
K1
9
X3
1
10
2
C1
3
F5
4
T2 N
P™l
L
P>
F3
M S
11 12 13
K1
P
F4
14
K1
K1T
K2
15 16
K1T
P<
B1
17 18
K1
19
E1
20
L1.1
L2.1
L3.1
L1.2
N
PE

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5|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
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:

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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

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5.5 Basic circuit diagram for star-deltastartwithspecialmotor
Fig. 18
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
C1 Fan operating capacitor
B1 Enabling switch (thermostat)
Q1 Main switch
nderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.Feb.2009
Kelich
10.Feb.2010
Urspr.
2
Ers.f.
3
Ers.d.
4
D/S
MP10
5 6 7
BOCKCOMPRESSORS
8
=
+
9
Bl.
1
Bl.
1
XSS
Q1
L1 L2 L3
Net400V50Hz
NPE
F1.1
K1
1
2
F1.2
1
AnschluákastenVerdichter
3
4
2
5
6
3
U1
V1
W1
M
3
~
M1
Y
K3
1
2
R1
3
4
5
6
W2
U2
V2
D
K2
1
2
4
3
4
5
5
6
6PE
X1 L1 L1 N N 43 43 11 12 14
LSM
X2123456
F1.1
F1.2
R2
4A
F2
S1
7
MP10
8
9
X3
1
M
~
1
M1.1
10
2
K1
11
3
C1
4
F5
K1
K1
T2
K3
P>
F3
N
P™l
K4T
K3
K2
L
12
M
K4T
K2
K3
13
S
14
K4T
P
F4
15
K5T
AL
16 17
K5T
P<
B1
18 19
K1
20
E1
21
L1.1
L2.1
L3.1
L1.2
N
PE
Compressor terminal box

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M1 Compressor motor
M1.1 Fan motor
K1 Mains contactor
K2 Δ-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
nderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.Feb.2009
Kelich
10.Feb.2010
Urspr.
2
Ers.f.
3
Ers.d.
4
D/S
MP10
5 6 7
BOCKCOMPRESSORS
8
=
+
9
Bl.
1
Bl.
1
XSS
Q1
L1 L2 L3
Net400V50Hz
NPE
F1.1
K1
1
2
F1.2
1
AnschluákastenVerdichter
3
4
2
5
6
3
U1
V1
W1
M
3
~
M1
Y
K3
1
2
R1
3
4
5
6
W2
U2
V2
D
K2
1
2
4
3
4
5
5
6
6PE
X1 L1 L1 N N 43 43 11 12 14
LSM
X2123456
F1.1
F1.2
R2
4A
F2
S1
7
MP10
8
9
X3
1
M
~
1
M1.1
10
2
K1
11
3
C1
4
F5
K1
K1
T2
K3
P>
F3
N
P™l
K4T
K3
K2
L
12
M
K4T
K2
K3
13
S
14
K4T
P
F4
15
K5T
AL
16 17
K5T
P<
B1
18 19
K1
20
E1
21
L1.1
L2.1
L3.1
L1.2
N
PE

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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triggerunitMP10
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(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
Fig. 19
Terminal board