GEA HG88e series User manual

D
GB
F
E
I
Ru
1
96260-08.2015-DGbFEIRu
engineering for a better world
GEA Bock Compressor HG88e
Assembly instructions
HG88e/2735-4 HG88e/2735-4 S HGX88e/2735-4 HGX88e/2735-4 S
HG88e/3235-4 HG88e/3235-4 S HGX88e/3235-4 HGX88e/3235-4 S

2
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
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

D
GB
F
E
I
Ru
3
96260-08.2015-DGbFEIRu
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 11
4.1 Storage and transport
4.2
Setting up
4.3
Pipe connections
4.4
Pipes
4.5
Start unloader (external)
4.6
Laying suction ans pressure lines
4.7
Operating the shut-off valves
4.8
Operating mode of the lockable service connections
5
Electrical connection 15
5.1
Information for contactor and motor contactor selection
5.2
Standard motor, design for direct or partial winding start
5.3
Basic circuit diagram for partial winding start with standard motor
5.4
Special motor: design for direct or star-delta start
5.5 Circuit diagram for star-delta start 230 V
∆/ 400 V Y
5.6
Electronic trigger unit INT69 G
5.7
Connecting the trigger unit INT69 G
5.8
Functional test of the trigger unit INT69 G
5.9
Oil sump heater (accessories)
6
Commissioning 26
6.1
Preparations for start-up
6.2
Pressure strengh test
6.3
Leak test
6.4
Evacuation
6.5
Refrigerant charge
6.6
Start-up
6.7
Avoid slugging
6.8
Connection of oil level regulator
7
Maintenance 28
7.1
Preparation
7.2
Work to be carried out
7.3
Spare parts recommendation
7.4
Extract from the lubricants table
7.5
Decommissioning
8
Accessories 30
8.1
Capacity regulator
9
Technical data 32
10
Dimensions and connections 33
11
Declaration of conformity and installation 35
12 Service 36

4
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
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:

D
GB
F
E
I
Ru
5
96260-08.2015-DGbFEIRu
1|Safety
1.4 Intended use
1.3 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).
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!

6
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
2|Product description
• Semi-hermetic eight-cylinder reciprocating compressor with suction-gas cooled drive motor.
• The stream of refrigerant sucked out of the evaporator flows over the motor and cools it
intensively. In this way, the motor can be kept at a relatively low temperature level, particularly
under high loads.
Fig. 1
2.1 Short description
Valve plate
Cylinder cover
Terminal box
Dimension and connection values can be found in Chapter 10
Transport eyelet
Discharge
shut-off valve
Oil pump
Oil sight glass
Drive section
Motor section
Suction
shut-off valve
Name plate

D
GB
F
E
I
Ru
7
96260-08.2015-DGbFEIRu
2|Product description
2.3 Type key (example)
/
HG 88 e 3235-4 SX
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, R407F)
3) S - More powerful motor, e.g. for air-conditioning applications
Motor variant 3)
Number of poles
Swept volume
e-series
Numbers of cylinders
Size
Oil charge ²)
Series ¹)
Observe the limits of
application diagrams!
1 Type designation
2 Machine number
3 Type code
4 Maximum operating current
5 Starting current (rotor blocked)
Y: Part winding 1
YY: Part windings 1 and 2
6 ND (LP): max. admissible over pressure
Low pressure side
HD (HP): max. admissible over pressure
High pressure side
Fig. 2
50 Hz
}
60 Hz
}
SE 55
AW09529A047
GEA Bock GmbH
72636 Frickenhausen, Germany
2.2 Name plate (example)
2
1
3
4
5
7
8
9
10
11
12
13
14
6
7 Voltage, circuit, frequency
8 Nominal rotation speed
9 Displacement
10 Voltage, circuit, frequency
11 Nominal rotation speed
12 Displacement
13 Oil type lled at the factory
14 Terminal box protection type
Electrical accessories can
changethe IP protection class!
HGX88e/3235-4
135,0 A
475A 551A
281
338
IP 65
Y/YY
Y/YY

8
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
3|Areas of application
The compressors are lled at the factory with the following oil type:
- for R134a, R404A/R507, R407C, R407F 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. HGX88e/3235-4).
3.1 Refrigerants
• HFKW / HFC: R134a, R404A/R507, R407C, R407F
• (H)FCKW / (H)CFC: R22
3.2 Oil charge
3.3 Limits of application
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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.
- Additional fans (accessories) can be used for additional cooling.
For operation with capacity regulator:
- The suction gas superheat temperature may need to be reduced
or set individually when operating near to the threshold.
- The limits of application are reduced.
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!
INFO For refilling, we recommend the above oil types.
Alternatives: see lubricants table, Chapter 7.4.
ATTENTION The oil level must be in the
visible part of the sight
glass; damage to the com-
pressor is possible if over-
filled or underfilled!
max.
min.
3,0 Ltr.
oil level
Fig. 3
~
~

D
GB
F
E
I
Ru
9
96260-08.2015-DGbFEIRu
3|Areas of application
Unlimited application range
Supplementary cooling or
reduced suction gas temperature
Supplementary cooling and
reduced suction gas temperature
Motor version S
(more powerful motor)
Evaporation temperature (°C)
Condensing temperature (°C)
Suction gas superheat (K)
Suction gas temperature (°C)
Design for other
areasonrequest
Maximum admissible
operating pressure (g)
(LP/HP): 19/28 bar
1) LP = Low pressure
HP = High pressure
30
40
60
80
90
-20 -10 100 20 30 t (°C)
o
t (°C)
c
82
-30
50
70
12,5 25
?t
Oh
<20K
20
t +20°C
Oh
EGD HG88e
R134a
20
10
0
-10
-20
-30
20
30
40
50
60
70
t (°C)
o
t (°C)
c
61
-5 12,5
-25
?tOh<20K
t +20°C
Oh
R407C
20
10
0
-10
-20
-30
-40
20
30
40
50
60
70
t (°C)
o
t (°C)
c
66
-35
t +20°C
oh
-5 12,5
?toh<20K
R22 R407F
10
0
-10
-20
-30
-40
-50
20
30
40
50
60
70
t (°C)
o
t (°C)
c
? toh<20K
t +20°C
oh
58
-5 7,5-45
R404A/R507
t (°C)
o
20
30
40
50
60
70
t (°C)
c
59
?toh<20K
t +20°C
oh
-20 -15
-25 -10 -5 05 10 15
R407C
30
40
60
80
90
-20 -10 100 20 30 t (°C)
o
t (°C)
c
82
-30
50
70
12,5 25
?t
Oh
<20K
20
t +20°C
Oh
EGD HG88e
R134a
20
10
0
-10
-20
-30
20
30
40
50
60
70
t (°C)
o
t (°C)
c
61
-5 12,5
-25
?tOh<20K
t +20°C
Oh
R407C
20
10
0
-10
-20
-30
-40
20
30
40
50
60
70
t (°C)
o
t (°C)
c
66
-35
t +20°C
oh
-5 12,5
?toh<20K
R22 R407F
10
0
-10
-20
-30
-40
-50
20
30
40
50
60
70
t (°C)
o
t (°C)
c
? toh<20K
t +20°C
oh
58
-5 7,5-45
R404A/R507
t (°C)
o
20
30
40
50
60
70
t (°C)
c
59
?toh<20K
t +20°C
oh
-20 -15
-25 -10 -5 05 10 15
R407F
Fig. 5
Fig. 6
30
40
60
80
90
-20 -10 100 20 30 t (°C)
o
t (°C)
c
82
-30
50
70
12,5 25
?t
Oh
<20K
20
t +20°C
Oh
EGD HG88e
R134a
20
10
0
-10
-20
-30
20
30
40
50
60
70
t (°C)
o
t (°C)
c
61
-5 12,5
-25
?tOh<20K
t +20°C
Oh
R407C
20
10
0
-10
-20
-30
-40
20
30
40
50
60
70
t (°C)
o
t (°C)
c
66
-35
t +20°C
oh
-5 12,5
?toh<20K
R22 R407F
10
0
-10
-20
-30
-40
-50
20
30
40
50
60
70
t (°C)
o
t (°C)
c
? toh<20K
t +20°C
oh
58
-5 7,5-45
R404A/R507
t (°C)
o
20
30
40
50
60
70
t (°C)
c
59
?toh<20K
t +20°C
oh
-20 -15
-25 -10 -5 05 10 15
R134a
Fig. 4

10
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
3|Areas of application
30
40
60
80
90
-20 -10 100 20 30 t (°C)
o
t (°C)
c
82
-30
50
70
12,5 25
?t
Oh
<20K
20
t +20°C
Oh
EGD HG88e
R134a
20
10
0
-10
-20
-30
20
30
40
50
60
70
t (°C)
o
t (°C)
c
61
-5 12,5
-25
?tOh<20K
t +20°C
Oh
R407C
20
10
0
-10
-20
-30
-40
20
30
40
50
60
70
t (°C)
o
t (°C)
c
66
-35
t +20°C
oh
-5 12,5
?toh<20K
R22 R407F
10
0
-10
-20
-30
-40
-50
20
30
40
50
60
70
t (°C)
o
t (°C)
c
? toh<20K
t +20°C
oh
58
-5 7,5-45
R404A/R507
t (°C)
o
20
30
40
50
60
70
t (°C)
c
59
?toh<20K
t +20°C
oh
-20 -15
-25 -10 -5 05 10 15
R22
30
40
60
80
90
-20 -10 100 20 30 t (°C)
o
t (°C)
c
82
-30
50
70
12,5 25
?t
Oh
<20K
20
t +20°C
Oh
EGD HG88e
R134a
20
10
0
-10
-20
-30
20
30
40
50
60
70
t (°C)
o
t (°C)
c
61
-5 12,5
-25
?tOh<20K
t +20°C
Oh
R407C
20
10
0
-10
-20
-30
-40
20
30
40
50
60
70
t (°C)
o
t (°C)
c
66
-35
t +20°C
oh
-5 12,5
?toh<20K
R22 R407F
10
0
-10
-20
-30
-40
-50
20
30
40
50
60
70
t (°C)
o
t (°C)
c
? toh<20K
t +20°C
oh
58
-5 7,5-45
R404A/R507
t (°C)
o
20
30
40
50
60
70
t (°C)
c
59
?toh<20K
t +20°C
oh
-20 -15
-25 -10 -5 05 10 15
R404A/R507
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)
Evaporation temperature (°C)
Condensing temperature (°C)
Suction gas superheat (K)
Suction gas temperature (°C)
Design for other
areasonrequest
Maximum admissible
operating pressure (g)
(LP/HP): 19/28 bar
1) LP = Low pressure
HP = High pressure

D
GB
F
E
I
Ru
11
96260-08.2015-DGbFEIRu
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.
4.2 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.
On shell and tube condensers, install only with rubber-metal shock
mountings.
Provide adequate clearance for maintenance work.
Ensure adequate compressor ventilation.
Do not use in a corrosive, dusty, damp atmosphere or a com-
bustible environment.
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Installation of pipe vibration mufers is recommended!
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
?
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
ATTENTION Attachments (e.g. pipe holders, additional units, fastening parts,
etc.) directly to the compressor are not permissible!

12
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
4|Compressor assembly
4.3 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).
The discharge gas connection can be moved upwards with an
adapter (accessory). This makes it easier to remove the com-
pressor from a refrigerating system.
Fig. 15: graduated
internal diameter
Pipe connections on the compressor are available for soldering or
welding (accessories). The discharge and suction line valves have
graduated inside diameters so that pipes with standart millimetre and
inch dimensions can be used. The pipe will be immersed more or less
deeply according to dimension.
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.
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.
4.5 Start unloader (external)
A internal start unloader ex factory is not available. Alternatively a start unloader can be installed in
the plant.
Operation:
When the compressor is started, a solenoid valve receives power via a time switch and opens a by-
pass between the discharge- and suction line. At the same time, a non-return valve in the discharge
line closes and prevents a backow of refrigerant from the condenser (Fig. 16).
The compressor is now short-circuited and delivers from the outow directly into the intake. The
pressure differential consequently decreases substantially. As a result, the torque on the drive shaft
of the compressor is considerably diminished. The drive motor can now start with a low level of
starting torque. As soon as the motor and the compressor reach their rated speed, the solenoid valve
closes and the non-return valve opens (Fig. 17). The compressor now works under normal load.
Solenoid valve actuated
Non-return valve closed
Fig. 16

D
GB
F
E
I
Ru
13
96260-08.2015-DGbFEIRu
Rigid
fixed point
Fig. 18
As short as
possible
4.6 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.
4|Compressor assembly
Important:
- Start unloader may only be employed during the starting phase.
- Check the solenoid valve and the non-return valve regulary for tightness.
- In addition, we recommend to use a heat protection thermostat on the discharge side of the com-
pressor. This protects the compressor against thermal overloading. Connect the heat protection
thermostat in series on the safety chain of the control circuit, to switch off the compressor if
necessary.
- Follow these instructions to avoid thermal overloading.
Fig. 17
Solenoid valve dead
Non-return valve open

14
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
4|Compressor assembly
Fig. 19 Fig. 20
Valve spindle seal
Release
Tighten
Pipe connection
Pipe connection
4.8 Operating mode of the lockable service connections
Fig. 21
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. 22
Opening the service connection
Spindle: Turn ½ - 1 turn clockwise.
—> Service connection opened / shut-off valve opened.
Connection
blocked
Spindle
Spindle Connection
open
Compressor
Compressor
Service connec-
tion closed
Service connec-
tion opened
4.7 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.
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.

D
GB
F
E
I
Ru
15
96260-08.2015-DGbFEIRu
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.
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

16
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
5.2 Standard motor, design for direct or partial winding start
INFO A mechanical unloaded start with bypass solenoid valve is
notrequired.
5|Electrical connection
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.
Designation on the name plate Sticker on the terminal box
Y/YY
Y/ YY

D
GB
F
E
I
Ru
17
96260-08.2015-DGbFEIRu
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
Direct start Part winding start
Serienmotor
Ausführung für Direkt- oder Teilwicklungsstart
Verdichter mit dieser Kennzeichnung ist für Direkt-
oder Teilwicklungsstart (PW-Anlauf) geeignet.
Der Motor ist in zwei Teilwicklungen unterteilt: Teil-
wicklung 1=60% und Teilwicklung 2=40%. Dadurch
wird beim Teilwicklungsstart der Anlaufstrom um ca.
35% gegenüber dem Direktstart verringert.
Für den Teilwicklungsstart (PW-Anlauf) ist die Verwendung einer mechanischen
Anlaufentlastung mit Bypass-Magnetventil nicht erforderlich.
Im Bedarfsfall kann der Anlaufstrom beim PW-Anlauf zusätzlich um bis zu 10% durch
Verwendung einer mechanischen Anlaufentlastung (Zubehör) verringert werden.
Werkseitig ist der Motor für Direktstart geschaltet.
Für den Teilwicklungsstart sind die Brücken
zu entfernen und die Motorzuleitung gemäß
Schaltschema anzuschließen:
WARNUNG! Nichtbeachten führt zu
gegenläufigen Drehfeldern und hat Motor-
schaden zur Folge. Nach Anlauf des
Motors über Teilwicklung 1 muß nach
maximal einer Sekunde Verzögerungszeit
Teilwicklung 2 dazugeschaltet werden.
Nichtbeachten kann die Lebensdauer
des Motors beeinträchtigen.
Sondermotor
Ausführung für Direkt- oder Y/∆-Anlauf
Verdichter mit dieser Kennzeichnung ist bei niederer
Spannung für Stern-Dreieck-Anlauf geeignet.
Bei Y/∆-Anlauf ist eine Anlaufentlastung
mit Bypass-Magnetventil erforderlich.
Werkseitig ist der Motor für den Direktstart bei
höherer Spannung geschaltet. Für den Stern-
Dreieck-Anlauf bei niederer Spannung sind die
Brücken zu entfernen.
∆/YYY
Typschildangabe Gelber Aufkleber
am Klemmenkasten
Klemmbrettanschlüsse
für Direktstart:
mit Brücken
Klemmbrettanschlüsse
für Teilwicklungsstart:
ohne Brücken
Typschildangabe
∆/Y
Gelber Aufkleber
am Klemmenkasten
Serienmotor
Ausführung für Direkt- oder Teilwicklungsstart
Verdichter mit dieser Kennzeichnung ist für Direkt-
oder Teilwicklungsstart (PW-Anlauf) geeignet.
Der Motor ist in zwei Teilwicklungen unterteilt: Teil-
wicklung 1=60% und Teilwicklung 2=40%. Dadurch
wird beim Teilwicklungsstart der Anlaufstrom um ca.
35% gegenüber dem Direktstart verringert.
Für den Teilwicklungsstart (PW-Anlauf) ist die Verwendung einer mechanischen
Anlaufentlastung mit Bypass-Magnetventil nicht erforderlich.
Im Bedarfsfall kann der Anlaufstrom beim PW-Anlauf zusätzlich um bis zu 10% durch
Verwendung einer mechanischen Anlaufentlastung (Zubehör) verringert werden.
Werkseitig ist der Motor für Direktstart geschaltet.
Für den Teilwicklungsstart sind die Brücken
zu entfernen und die Motorzuleitung gemäß
Schaltschema anzuschließen:
WARNUNG! Nichtbeachten führt zu
gegenläufigen Drehfeldern und hat Motor-
schaden zur Folge. Nach Anlauf des
Motors über Teilwicklung 1 muß nach
maximal einer Sekunde Verzögerungszeit
Teilwicklung 2 dazugeschaltet werden.
Nichtbeachten kann die Lebensdauer
des Motors beeinträchtigen.
Sondermotor
Ausführung für Direkt- oder Y/∆-Anlauf
Verdichter mit dieser Kennzeichnung ist bei niederer
Spannung für Stern-Dreieck-Anlauf geeignet.
Bei Y/∆-Anlauf ist eine Anlaufentlastung
mit Bypass-Magnetventil erforderlich.
Werkseitig ist der Motor für den Direktstart bei
höherer Spannung geschaltet. Für den Stern-
Dreieck-Anlauf bei niederer Spannung sind die
Brücken zu entfernen.
∆/YYY
Typschildangabe Gelber Aufkleber
am Klemmenkasten
Klemmbrettanschlüsse
für Direktstart:
mit Brücken
Klemmbrettanschlüsse
für Teilwicklungsstart:
ohne Brücken
Typschildangabe
∆/Y
Gelber Aufkleber
am Klemmenkasten
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.
INFO When testing coils with resistance tester, please note that partial
winding 1 and partial winding 2 are wired internally in HG88e.
5|Electrical connection

18
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
5.3 Basic circuit diagram for part winding start with standart motor
Fig. 23
Οnderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.02.2009
bauknecht
04.03.2015
Urspr.
2
Ers. f.
3
Ers. d.
4
PW MP10
567
BOCK COMPRESSORS
8
=
+
9
Bl.
6HG76e Bl.
2
1
X SS
Anschlußkasten Verdichter
BT1
BP1
P-Öl
INT69
QA1
L1 L2 L3 N PE
FC1.1
I=66% I> I>
I>
1
2
QA2
1
3
4
2
5
6
3
1U1
1V1
1W1
EC1
M
/YYY
2U1
2V1
2W1
FC1.2
I=33% I> I>
I>
1
2
QA3
4
3
4
5
5
6
6 7
FC1.1
FC1.2
8
BT2
FC2
4A
SF1
BT2
9
BT2
10
BT2
11
QA2
12
T2
13
N
14
L
15
M
16
S
BP2
P>
17 18 19
QA2
BP3
P
20
QA2
KF1
QA3
2.8
3.7
4.8
5HG76e.8
5HGZ76e.7
6HG76e.7
21 22
KF1
2.8
5HG76e.8
5HGZ76e.7
23 24
QA2
25
EB1
26
L1.1
L2.1
L3.1
L1.2
N
PE
OG OG
1112 14
L N B1 B2
BT3
PE
PE
PE
BP1 Oil differential pressure monitor
BP2 High pressure safety monitor
BP3 Safety chain (high/low pressure monitoring)
BT3 Release switch (thermostat)
BT1 Cold conductor (PTC sensor) motor winding
BT2.X Thermal protection thermostat
EB1 Oil sump heater
EC1 Compressor motor
FC1.1 Motor protection switch (part winding 1)
60% 40%
Compressor terminal box

D
GB
F
E
I
Ru
19
96260-08.2015-DGbFEIRu
FC1.2 Motor protection switch (part winding 2)
FC2 Control power circuit fuse
KF1 Delay relay max. 1s
QA1 Main switch
QA2 Mains contactor (part winding 1)
QA3 Mains contactor (part winding 2)
SF1 Control voltage switch
XSS Terminal strip in the external switch cabinet
Οnderung
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
20.02.2009
bauknecht
04.03.2015
Urspr.
2
Ers. f.
3
Ers. d.
4
PW MP10
567
BOCK COMPRESSORS
8
=
+
9
Bl.
6HG76e Bl.
2
1
X SS
Anschlußkasten Verdichter
BT1
BP1
P-Öl
INT69
QA1
L1 L2 L3 N PE
FC1.1
I=66% I> I>
I>
1
2
QA2
1
3
4
2
5
6
3
1U1
1V1
1W1
EC1
M
/YYY
2U1
2V1
2W1
FC1.2
I=33% I> I>
I>
1
2
QA3
4
3
4
5
5
6
67
FC1.1
FC1.2
8
BT2
FC2
4A
SF1
BT2
9
BT2
10
BT2
11
QA2
12
T2
13
N
14
L
15
M
16
S
BP2
P>
17 18 19
QA2
BP3
P
20
QA2
KF1
QA3
2.8
3.7
4.8
5HG76e.8
5HGZ76e.7
6HG76e.7
21 22
KF1
2.8
5HG76e.8
5HGZ76e.7
23 24
QA2
25
EB1
26
L1.1
L2.1
L3.1
L1.2
N
PE
OG OG
1112 14
L N B1 B2
BT3
PE PE
PE

20
D
GB
F
E
I
Ru
96260-08.2015-DGbFEIRu
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
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