Danfoss Bock Hgx34e 2 Pole Hg Compressors Installation Guide (+ PDF)

Contents hide

1 BOCK HGX34e 2 Pole Hg Compressors

2 Product Information:

2.1 About these instructions:

2.2 Contents:

2.3 Safety:

2.3.1 1.1 Identification of safety instructions:

2.3.2 1.2 Qualifications required of personnel:

2.3.3 1.3 General safety instructions:

2.3.4 1.4 Intended use:

3 Product Usage Instructions:

3.1 Commissioning:

3.2 Maintenance:

3.3 Documents / Resources

3.3.1 References

BOCK HGX34e 2 Pole Hg Compressors

Product Information:

The product in question is a refrigerating compressor
manufactured by Bock. It is available in multiple models:
HGX34e/255-2, HGX34e/315-2, HGX34e/315-2 S, and HGX34e/380-2. The
product comes with an operating guide and a translation of the
original instructions.

About these instructions:

These instructions should be read before assembling and using
the compressor to avoid misunderstandings and prevent damage.
Improper assembly and use can result in serious or fatal injury.
Safety instructions provided in these instructions must be
followed. The instructions should be passed on to the end customer
along with the compressor unit.

Safety:

1.1 Identification of safety instructions:

DANGER: Indicates a dangerous situation that
can cause immediate fatal or serious injury.
WARNING: Indicates a dangerous situation that
can cause fatal or serious injury.
CAUTION: Indicates a dangerous situation that
can cause fairly severe or minor injury.
ATTENTION: Indicates a situation that can
cause property damage.
INFO: Provides important information or tips
on simplifying work.

1.2 Qualifications required of personnel:

Working on compressors requires personnel who are qualified to
work on pressurized refrigerant systems. This includes engineers
and professionals with comparable training who can assemble,
install, maintain, and repair refrigeration and air-conditioning
systems. Personnel must be capable of assessing the work and
recognizing potential dangers.

1.3 General safety instructions:

Refrigerating compressors are pressurized machines and require
caution and care during handling. The maximum permissible
overpressure should not be exceeded, even for testing purposes.

1.4 Intended use:

The compressor should not be used in potentially explosive
environments. These assembly instructions describe the standard
version of the compressor manufactured by Bock and are intended for
installation in a machine.

Product Usage Instructions:

Follow these instructions for proper usage of the refrigerating
compressor:

Commissioning:

Perform necessary preparations for start-up.
Conduct a pressure strength test to ensure the compressor’s
integrity.
Perform a leak test to check for any refrigerant leaks.
Complete the evacuation process.
Add the required amount of refrigerant charge.
Start the compressor.
Avoid slugging during operation.

Maintenance:

Prepare for maintenance tasks.
Carry out the necessary work as specified.
Refer to the spare parts recommendation and accessories for
replacements.
Use recommended lubricants or oil for maintenance.
Follow the decommissioning process when necessary.

Note: For detailed technical data, dimensions, connections, and
declaration of incorporation, please refer to the user manual.

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BOCK® HGX34e 2-pole
Operating guide
HGX34e/255-2 HGX34e/315-2 HGX34e/315-2 S HGX34e/380-2

Translation of the original instructions

AQ453056555765en-000201

About these instructions
Read these instructions before assembly and before using the compressor. This will avoid misunderstandings 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 compressor is installed.
D GB F E

2 | AQ453056555765en-000201

Contents
1 Safety
1.1 Identification of safety instructions 1.2 Qualifications required of personnel 1.3 General safety instructions 1.4 Intended use
2 Product description 2.1 Short description 2.2 Name plate 2.3 Type key 3 Areas of application 3.1 Refrigerants 3.2 Oil charge 3.3 Limits of application 4 Compressor assembly 4.1 Storage and transport 4.2 Setting up 4.3 Maximum permissible inclination 4.4 Pipe connections 4.5 Pipes 4.6 Laying suction and pressure lines 4.7 Operating the shut-off valves 4.8 Operating mode of the lockable service connections – suction line valve 4.9 Operating mode of the lockable service connections – discharge line valve
5 Electrical connection
5.1 Information for contactor and motor contactor selection 5.2 Connection of the driving motor – star circuit 5.3 Connection of the driving motor – part-winding circuit 5.4 Circuit diagram 5.5 Electronic trigger unit INT69 G 5.6 Connection of the electronic trigger unit INT69 G 5.7 External connection INT69 G 5.8 Function test of the trigger unit INT69 G
6 Commissioning 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 Avoid slugging
7 Maintenance 7.1 Preparation 7.2 Work to be carried out 7.3 Spare parts recommendation/accessories 7.4 Lubricants / oil 7.5 Decommissioning
8 Technical data
9 Dimensions and connections
10 Declaration of incorporation

Page 4
6 8 10

22
24 25 26

AQ453056555765en-000201 | 3

1| Safety

1.1 Identification 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.

GB 1.2 Qualifications required of personnel
F

WARNING Inadequately qualified personnel poses the risk of accidents, the

consequence being serious or fatal injury. Work on compressors

is therefore reserved for personnel which is qualified 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.

4 | AQ453056555765en-000201

1| Safety

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.

1.4 Intended use

WARNING The compressor may not be used in potentially explosive

environments!

These assembly instructions describe the standard version of the compressor named in the title

manufactured by Bock. Bock refrigerating compressors are intended for installation in a machine

(within the EU according to the EU Directives 2006/42/EC Machinery Directive and 2014/68/EU Pres-

sure 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 specified in these instructions may be used.

Any other use of the compressor is prohibited!

AQ453056555765en-000201 | 5

2| Product description
2.1 Short description · Semi-hermetic four-cylinder reciprocating compressor with oil pump lubrication. · Suction gas cooled drive motor.

Discharge shut-off valve
Valve plate

Oil pump D

Fig. 1

Transport eyelet
Name plate Oil sight glass

Terminal box

Cylinder cover

Suction shut-off valve

Drive section Motor section

Fig. 2 Dimension and connection values can be found in Chapter 9

6 | AQ453056555765en-000201

2| Product description

2.2 Name plate (example)

BOCK Bock GmbH, Benzstr. 7 72636 Frickenhausen, Germany

HGX34e/315-2

AX38125A001

24,3A

117A

19/28

Fig. 3

IP66

2277,,33

7 8

32,8 BSSEOEC555K5 lub E55 9
10

1 Type designation 2 Machine number

6 Voltage, circuit, frequency
} 7 Nominal rotation speed 50 Hz

3 maximum operating current 4 Starting current (rotor blocked)

8 Displacement 9 Oil type filled at the factory

5 ND (LP): max. permissible operating

10 Terminal box protection type

pressure (g) Low pressure side

HD (HP): max. permissible operating

pressure (g) High pressure side

Observe the limits of application diagrams!

Electrical accessories can change

the IP protection class!

2.3 Type key (example)

HG X 3 4 e / 315-2 S

Motor variant 4) Number of poles Swept volume e-series Numbers of cylinders Size Oil charge ²) Series ¹)
¹) HG – Hermetic Gas-Cooled (suction gas-cooled) ²) X – Ester oil charge ³) S – More powerful motor e.g. air-conditioning applications

AQ453056555765en-000201 | 7

3| Areas of application

3.1 Refrigerants · HFKW / HFC:

R134a, R407C

3.2 Oil charge
The compressors are factory-filled with the following oil type: – BOCK lub E55
Compressors with ester oil charge (BOCK lub E55) are marked with an X in the type designation (e.g. HGX34e/380-2).

INFO

For refilling, we recommend the above oil types.

Alternatives: see chapter 7.4

ATTENTION The oil level must be in the visible part of the sight glass; max.
damage to the compressor is oil level possible if overfilled or under- min. filled!

~~ 0,8 Ltr. Fig. 4 Fig. 4

3.3 Limits of application

ATTENTION Compressor operation is possible within the operating limits.

These can be found in Bock compressor selection tool (VAP)

under vap.bock.de. Observe the information given there.

– 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 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 suffici-

ent oil is transported back to the compressor. For operation with frequency converter:

– Control range of the compressor 15 – 50 Hz

– 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

– Use a heat protection thermostat. – Oil return at low frequency must be supplied.

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!

8 | AQ453056555765en-000201

3| Areas of application
Max. permissible operating pressure (LP/HP)1): 19/28 bar

1) LP = Low pressure HP = High pressure

D GB F E

AQ453056555765en-000201 | 9

4| Compressor assembly

INFO

New compressors are factory-filled with inert gas. Leave this ser-

vice charge in the compressor for as long as possible and prevent

the ingress of air. Check the compressor for transport damage

before starting any work.

4.1 Storage and transport

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.

Use transport eyelet. Use lifting gear!

Do not lift manually!

4.2 Setting up

ATTENTION Fittings (e.g. pipe holders, additional units, mounting parts etc.) on the compressor are not permissible!

Provide adequate clearance for maintenance work.

Ensure adequate compressor ventilation.

Do not use in a corrosive, dusty, damp atmosphere or a

combustible environment. E

Setup on an even surface or frame with sufficient loadbearing capacity. Single compressor preferably on vibration damper. Duplex and parallel circuits always rigid.

Sun protection: If the compressor is set up outdoors, it has to be protected from direct sunlight.

4.3 Maximum permissible inclination
ATTENTION Poor lubrication can damage the compressor. Respect the stated values

A max. 30°, max. 2 minutes

Fig. 5

a max. 15°, continuous operation

10 | AQ453056555765en-000201

4| Compressor assembly

4.4 Pipe connections

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).

Fig. 6: graduated internal diameter

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.

4.5 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.

4.6 Laying suction and pressure lines

ATTENTION Improperly installed pipes can cause cracks and tears, the result being a loss of refrigerant.

INFO

Proper layout of the suction and discharge lines directly after

the compressor is integral to the system’s smooth running and

vibration behaviour.

A rule of thumb: Always lay the first pipe section starting from the shut-off valve downwards and parallel to the drive shaft.

Rigid fixed point

As short as possible

Fig. 7
AQ453056555765en-000201 | 11

4| Compressor assembly
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.
Release
Tighten

Valve spindle seal

Fig. 8

Fig. 9

4.8 Operating mode of the lockable service connections Suction line valve

Service connection closed

Connection cannot be shut off

Spindle

Connection blocked

Pipe connection

Opening the shut-off valve:

Compressor

Spindle: turn to the left (counter-clockwise) as far as it will go.

–> Shut-off valve completely opened / service connection closed.

The connection which cannot be shut off is intended for safety devices.

Fig. 10

Service connection opened

Connection cannot be shut off

Spindle

Connection open

Pipe connection

Opening the service connection

Compressor

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.

Fig. 11

After activating the spindle, generally fit the spindle protection cap again and tighten with 14-16 Nm. This serves as a second sealing feature during operation.

12 | AQ453056555765en-000201

4| Compressor assembly
4.9 Operating mode of the lockable service connections Discharge line valve
Service connection closed

Spindle

Connection blocked

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.

Pipe connection
Compressor Fig. 12

Service connection opened

Spindle

Connection open

Pipe connection

Opening the service connection Spindle: Turn ½ – 1 turn to the right clockwise. –> Service connection opened / shut-off valve opened.

Compressor Fig. 13

After activating the spindle, generally fit the spindle protection cap again and tighten with 14-16 Nm. This serves as a second sealing feature during operation.

AQ453056555765en-000201 | 13

5| Electrical connection

5 Electrical connection

DANGER

Risk of electric shock! High voltage! Only carry out work when the electrical system is disconnected from the power supply!

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.

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.

5.1 Information for contactor and motor contactor selection

GB All protection devices and switching or monitoring units must be fitted in accordance with the local

safety regulations and established specifications (e.g. VDE) as well as with the manufacturer’s information. 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.

14 | AQ453056555765en-000201

5| Electrical connection
5.2 Connection of the driving motor with star circuit Designation on the name plate
Y
Star-delta start-up is only possible on 230 V voltage supply. Example: 400 V Y
Direct start only

L1 L2 L3

5.3 Connection of the driving motor with part winding circuit Designation on the name plate

Y/YY

Example:
Direct start YY with bridges
V2 W2 U2 V1 W1
U1

400 V

PW – start-up Y/YY without bridges
L1 L2 L3

PW II PW I

V2 W2
U2 V1 W1
U1

L1 L2 L3

ATTENTION

Failure to do this results in opposed rotary fields 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.

AQ453056555765en-000201 | 15

5.4 Circuit diagramm for direct start

QA1

FC1.1

I> I> I>

QA2

FC2

SF1

QA2

FC1.1

L1 L2 L3 N PE

-EC1 3~

BT1

12 14 11 L N B1 B2

INT69G
CAonmscphrelusßskoarstteernmVinearldbicohxter

Fig. 14

BT1

Cold conductor (PTC sensor) motor winding

BT2

Thermal protection thermostat (PTC sensor)

FC1

Load circuit safety switches

FC2

Control power circuit fuse

BP1

High pressure safety monitor

BP2

Safety chain (high/low pressure monitoring)

BT3

Release switch (thermostat)

16 | AQ453056555765en-000201

L1.1 L2.1 L3.1 L1.2

QA2 N PE

EB1 P>
BP1
BT2
BT2

BP2

BT3

D GB F E

QA1 SF1 EC1 QA2 INT69 G EB1

Main switch Control voltage switch Compressor motor Compressor contactor Electronic trigger unit INT69 G Oil sump heater

AQ453056555765en-000201 | 17

5| Electrical connection

5.5 Electronic trigger unit INT69 G
The compressor motor is fitted 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 floating 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.

5.6 Connection of the trigger unit INT69 G D

GB 1 F E

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 first element in the control power circuit.

or Protection MP10

1 N N 43 43 11 12 14

ATTENTION Measure circuit BT1 and BT2 (PTC sensor) must not come Ri1nto conRt2act with ex ternal voltage. This would destroy the trigger X2un1it2IN3T649 G5 a6nd PTC sensors.

INT69 G

OG OG

+
Steuerstrom- BT1
–
kreis

+
BT2
–

+
BT1
+
BT2
–

B1 B2

12 14 11

N L
CSotenutreorlstcriorcmu-it
kreis
Fig. 15 Terminal box

18 | AQ453056555765en-000201

0 5| Elec1trical con2 nection3

5.7 External connection INT69 G

Schaltschrank
SSwcihtaclhtsccharbainnket

INT69G INT69G

1 2 3 4 5 6 7 8 09 10 11 12

BT1

Cold conductor (PTC

sensor) motor winding

1 2 3 4 5 6 7 8 09 10 11 12

BT2

Heat protection thermo-

stat (PTC sensor)

EB1

Oil sump heater

EB1

BT1 BT2 BT2

EB1 Terminal BBTo1 x BT2 BT2

Fig. 16

F 5.8 Function test of the trigger unit INT69 G
E Before commissioning, after troubleshooting or making changes to the control power circuit, check
the functionality of the trigger unit. Perform this check using a continuity tester or gauge.

Gauge state

Relay position

Relay position INT69 G

1. Deactivated state

11-12

2. INT69 G switch-on 3. Remove PTC connector

11-14 11-12

B2 12 14 11

4. Insert PTC connector

11-12

1
nderung nderung

Datum Datum

5. ReDsateumt af0t4e.12r.20m09 ains on

Bearb.

bauknecht

Name

GDeapturm. NBeoarmrb.

0084..0152..22002009 bauknecht

Urspr.

Gepr.

08.05.2020

Name Norm

Urspr.

11-14

Ers. f. Ers. f.

Ers. d. Ers. d.

Fig. 17
HG22e/34e HC
HG22e/34e HC

AQ453056555765en-000201 | 19

6| Commissioning

6.1 Preparations for start-up

INFO

To protect the compressor against inadmissible operating conditions,

high pressure and low pressure pressostats are mandatory on the

installation side.

The compressor has undergone trials in the factory and all functions have been tested. There are therefore no special running-in instructions.
Check the compressor for transport damage!

6.2 Pressure strength test
The compressor has been tested in the factory for pressure integrity. If however the entire system is to be subjected to a pressure integrity test, this should be carried out in accordance with EN 378-2 or a corresponding safety standard without the inclusion of the compressor.

6.3 Leak test

DANGER Risk of bursting!

The compressor must only be pressurised using nitrogen (N2). Never pressurise with oxygen or other gases!

The maximum permissible overpressure of the compressor must

not be exceeded at any time during the testing process (see name

plate data)! Do not mix any refrigerant with the nitrogen as this

could cause the ignition limit to shift into the critical range.

Carry out the leak test on the refrigerating plant in accordance with EN 378-2 or a corresponding

safety standard, while always observing the maximum permissible overpressure for the compressor.

6.4 Evacuation

ATTENTION

Do not start the compressor if it is under vacuum. Do not apply any voltage – even for test purposes (must only be operated with refrigerant).
Under vacuum, the spark-over and creepage current distances of the terminal board connection bolts shorten; this can result in winding and terminal board damage.

First evacuate the system and then include the compressor in the evacuation process. Relieve the compressor pressure. Open the suction and pressure line shut-off valves. Evacuate the suction and discharge pressure sides using the vacuum pump. At the end of the evacuation process, the vacuum should be < 1.5 mbar when the pump is switched off. Repeat this process as often as is required.

20 | AQ453056555765en-000201

6| Commissioning

6.5 Refrigerant charge
CAUTION Wear personal protective clothing such as goggles and protective gloves!

Make sure that the suction and pressure line shut-off valves are open.
With the compressor switched off, add the liquid refrigerant directly to the condenser or receiver, breaking the vacuum. If the refrigerant needs topping up after starting the compressor, it can be topped up in vapour form on the suction side, or, taking suitable precautions, also in liquid form at the inlet to the evaporator.
ATTENTION Avoid overfilling the system with refrigerant!
To avoid shifts in concentration, zeotropic refrigerant blends must always only be filled into the refrigerating plant in liquid form. Do not pour liquid coolant through the suction line valve on the compressor. It is not permissible to mix additives with the oil and refrigerant.

6.6 Start-up

WARNING Ensure that both shut-off valves are open before starting the

compressor! F

Check that the safety and protection devices (pressure switch, motor protection, electrical

contact protection measures, etc.) are all functioning properly.

Switch on the compressor and allow to run for a minimum of 10 min.

Check the oil level by: The oil must be visible in the sightglass.

ATTENTION If larger quantities of oil have to be topped up, there is a risk of oil hammer effects. If this is the case check the oil return!

6.7 Avoiding slugging

ATTENTION Slugging can damage the compressor and cause refrigerant to leak.

To prevent slugging:
The complete refrigeration system must be properly designed. All components must be compatibly rated with each other with regard to output (particularly the evaporator and expansion valves). Suction gas superheat at the compressor input should be min. 7 – 10 K. (check the setting of the expansion valve). The system must reach a state of equilibrium. Particularly in critical systems (e.g. several evaporator points), measures are recommended such as replacement of liquid traps, solenoid valve in the liquid line, etc. There should be no movement of coolant whatsoever while the compressor is at a standstill.

AQ453056555765en-000201 | 21

7| Maintenance

7.1 Preparation WARNING

Before starting any work on the compressor: Switch off the compressor and secure it to prevent a restart. Relieve compressor of system pressure. Prevent air from infiltrating the system!
After maintenance has been performed: Connect safety switch. Evacuate compressor. Release switch lock.

7.2 Work to be carried out

Oil change: In principle, an oil change is not mandatory if the system is correctly manufactured

and operated. However, based on decades of experience we recommend that the following oil

change/service work is carried out:

– First oil change during the first maintenance of the system.

– Then after every 10,000 – 12,000 operating hours, though no more than 3 years, clean the

oil strainer at the same time. Dispose of the oil inside in accordance with the applicable

national regulations. D

Annual checks: Oil level, leak tightness, running noises, pressures, temperatures, function of

auxiliary devices such as oil sump heater, pressure switch.

7.3 Spare parts recommendation/accessories

Available spare parts and accessories can be found on our compressor selection tool under vap.bock.de as well as at bockshop.bock.de.

Only use genuine Bock spare parts!

22 | AQ453056555765en-000201

7| Maintenance

7.4 Lubricants / oil
The oil type filled as standard in the factory is marked on the name plate, and this should always be used, even in the case of maintenance units. Alternative oil types can vary significantly in quality due to additives or inferior raw materials by the manufacturer. Validation within the compressors entire operating limits can not be guaranteed, if such alternative oil types are used. It is for this reason, that we only recommend the use of oil from Bock! Bock assumes no liability for any damage arising from alternative oil types.

Refrigerants
HCFC (e.g. R134a, R407C)

Bock standard oil types BOCK lub E55

7.5 Decommissioning
Close the shut-off valves on the compressor. Drain the refrigerant (it must not be discharged into the environment) and dispose of it according to the regulations. When the compressor is depressurised, undo the fastening screws of the shut-off valves. Remove the compressor using an appropriate hoist. Dispose of the oil inside in accordance with the applicable national regulations.

D GB F E

AQ453056555765en-000201 | 23

8| Technical data
Oil charge

Weight
D GB F E

24 | AQ453056555765en-000201

Type HGX34e/255-2

No. of cylinders

Displacement 50 Hz
(2900 rpm)
m3/h

Voltage 1

Electrical data 3

Max. Operating current
2 Y

Max. power consumption
2

Starting current
(rotor locked)
Y

Connections 4

Discharge Suction

line

Sound pressure
level
L/M/H 5

kg mm (inch) mm (inch) Ltr.

dB(A)

44,3

25,8

16,0

117 95

62 / 59 / 58

380-420 V Y – 3 – 50 Hz

HGX34e/315-2

54,7

HGX34e/315-2 S

54,7

24,3

14,7

117 94

64 / 62 / 60,5

22 (7/8) 35 (13/8) 1,3

32,2

19,0

172 102

66 / 64 / 63

HGX34e/380-2

66,1

38,0

23,5

172 102

67 / 64,5 / 64

1 Tolerance (± 10%) relative to the mean value of the voltage range. Other voltages and types of current on request.
2 – The specifications for max. power consumption apply for 50Hz operation. For 60Hz operation, the specifications have to be multiplied by the factor
1.2. The max. working current remains unchanged.
– Take account of the max. operating current / max. power consumption for
design of fuses, supply lines and safety devices. Fuse: Consumption
category AC3

3 All specifications are based on the average of the voltage range
4 For solder connections
5 L = low temperature (-35 / 40 °C), M = normal cooling (-10 / 45 °C), H = air conditioning (5 / 50°C) sound pressure level measured in low reflection measuring area, measuring distance 1m. Compressor operation at 50 Hz (1450 rpm), refrigerant R404A. Values stated are average values, tolerance ± 2 dB(A).

9| Dimensions and connections

7 HGX34e 2-poleig

135 273
135
+ 2
318 115
318 +2 115

46 78

Centre of gravity
X

17406 78 310

170 310

417 (450)

+2
535 (568)

W Vibration

M10 Vdamper

X A B,L C
F,M J

282 +2
DV B1
A B,L C F,M J
4x 15 230 272
X

282 +2
DV B1
H,D1 O,K
4x 15 230 272 +2
(568)
X

Anschlüsse / Connections

Anschlüsse Connections

Saugabsperrventil, Rohr Suction line valve, tube

(LS)*V Saugabspemrrmve (L)* Suction linemvma

Druckabsperrventil, Rohr DV
Discharge line valve, tube

(LD)V* Druckabspmermrv (L)* Discharge lminme

A ACnosncnhelcutsiosnSsauucgtsioenites,idneic, hntoat blosAcpkearbrACblenoasnrcnhelcutsiosnSZsoaululc

A1 B

H,D1 Anschluss Saugseite, absperrAba1r
Connection suction side, lockable

Anschluss Sau ConnectionZsoullc

Anschluss Druckseite, Connection discharge

nicht side,

naobBtslpoecrkACrabnobasnlrecnhelcutsiosnDZdoruilsl

B1 C

O,K Anschluss Druckseite,
Connection discharge

saibdsep, elorcrBbk1aarblACenosncnhelcutsiosnDZdoruilsl

CAonnsncehclutisosnÖolidl prurecksssiucrheesrhaefeittsysCscwhaitClctAehonrnsncehclutisosnZÖoolildll

D1 ACnosncnhelcutsiosnÖolrilürcektfuürhnrufrnogmvooiml sDeÖ1plaabrACasntocoshnrcenhiedlcuetsriosnÖZoolrillül

Ölablass F
Oil drain

Ölablass

F Oil drain

Stopfen Ölfüllung H
Oil charge plug

Stopfen Ölfüllu H Oil charge pZloulgl

Anschluss Ölsumpfheizung Connection oil sump heater

Anschluss Ölsu ConnectionZooilll

Schauglas K
Sight glass

Schauglas K Sight glassZoll

L ACnosncnhelcutsiosnWthäermrmeaslcphruottzethcteiormn oLthsetarmtACnoosnsctnahetlcutsiosnWZtohälelr

Ölsieb M
Oil filter

Ölsieb

M Oil filter

Anschluss Ölspiegelregulator O Connection oil level regulator

Anschluss Ölsp ConnectionZooilll

Anschluss Kältemittel EinspritzWung Connection for refrigerant injection

Anschluss Kält ConnectionZfoolrl

D (L)* = Lötanschluss / brazing conne(cLt)i*on= Lötansch

3 0 2 0
3 0 2 0
3 0 2 0

SV A1 A SV A1 A

Dimensions in ( ) for HGX34e/315-2 S + 380-2 SV 90° rotatable

SV Suction line DV Discharge line

see technical data, Chapter 8

Dimensions in mm Fig. 18

F
ESchwin
M10 Vibratio 40

A A1 B B1 C

1 Maße in ( ) für Connection suction side, not lockable /8″ NPTF Dimensions in

H( )GfXor3H4eGMD/3Xiam13ß5e4e-ne2is/n3iSo1(n+5)s-f32üin8rS0H(-+)2Gf3Xo8r30H4-eG2/3X1354-e2/3SÄS1nu+5db-eje32rcu8tnS0tgoe-+c2nh3vaon8rgb0ee-hw2aitlhteonut

ÄnderMunagßeeninvomrbmehalten noticSeubjecDtimtoecnhsaionngseiwn imthmout

7 HalbhermetischerHVaelrbdhicehrmteertHisGch/eSr eVmerid-hicehrmteer tHicGco/ mSepmreis-hseorrmHeGtic compressor HG

Connection suction side, lockable /16″ UNF Typ / type

Teile-Nr./ part-no.

TtyyTtpypyepp/e/

Tpaerilte-n-NoTpr..ae/rilte-n-NTtoyyr.p.p/e/

Typ / type

TpaeriltTpe-aen-Nriolter.-.n-/Nor../TtyyppeTty/yppe/

Tpaerilte-n-NoTpr..ae/rilte-n-NTtoyyr.p.p/e/

Typ / type

Zeichn.-Nr. TpaeTpriaelteri-ltn-e-Non-Nr.o.r/../

Typ / type

Teile-N part-no

1 HG34e/215-4 Connection discharge side, not lockable /8″ NPTF HG34e/255-4
HG34e/315-4 HG34e/380-4
7 HG34e/215-4 HC Connection discharge side, lockable /16″ UNF HG34e/255-4 HC

16050 16051 16052 16053 16066 16067

HGHG34Xe3/241e5/2-145-4 16050 160H5G8 X34He/G23145e-4/215-4 S 1601568054 HG3H4GeX/23145e-/421S5-4 S 16054 160H6G2 X34He/G2X153-44eS/255-2

HGHG34Xe3/245e5/2-545-4 16051 160H5G9 X34He/G23545e-4/255-4 S 1601569055 HG3H4GeX/23545e-/425S5-4 S 16055 160H6G3 X34He/G2X553-44eS/315-2

HHHGGGHHHGGG333444XXXeee333///233444118eee550///332—181444505H–M44CL

16052 16053 L1G6066

111666002HHH668GGG015 XXX333444HHHeee///GGG332333181444505eee–M44///233L1185503—L444GSSS

HC 111666002111668666015000557670 HHHGGG333HHH444GGGeeeXXX///233333118444550eee—///444332181SSS505H–S44CSS5

16056 16057 LG16070

111666002HHH668GGG456 XXX333444HH-eee///GG332XX18150533–44S44eeSS//53381L05G–22

HGHG34Xe3/245e5/2-545HMCL 4 L1G6067 162H8G7 X34He/G23545eM/2L554-L4GS HC 1621867071 HG3H4GeX/23545e-/425S5HSC6 LG16071 162H8G8 X34-e/255 S 6 LG

1610660274 1610660375 111666110026666800-4567767 1628-8

HGX34e/255-2

1607

HGX34e/315-2

1607

HGX34e/315-2 S 1607

1.0850 HGX34e/380-2
–

1607 –

–

HG34e/315-4 HC
Connection oil pressure safety switch 1/8″ NPTF HG34e/380-4 HC

16068 HGHG34Xe3/341e5/3-145HMCL 5 L1G6068 162H8G9 X34He/G33145eM/3L155-L4GS HC 1621869072 HG3H4GeX/33145e-/431S5HSC7 LG16072 162H9G0 X34-e/315 S 7 LG 16069 HGHG34Xe3/348e0/3-840HMCL 6 L1G6069 162H9G1 X34He/G33840eM/3L806-L4GS HC 1621961073 HG3H4GeX/33840e-/438S0HSC9 LG16073 162H9G2 X34-e/380 S 9 LG

1629-0 1629-2

–

D1 Connection oil return from oil separator

Oil drain

Gußtoleranzen
1/4″ NPTF –

General

castinGg utoßletorlaenracensz:en –

GenerZael iccahsntuinnggtso-lNerra. n/ ces: Drawing-No.

Te Pa

Baumustergeprüft Nein / No

Type

examBNaienuinamt/iouNnso:tergeprüft

Type

examination:

M12 x 1,5 1. 0850 -1 Gewicht / Weight: (kg) –

Gewicht / Weight: (kg) –

Oil charge plug

Allgemeintoleranzen DIN ISO 2768-mK-E

GeneralADtloIlNgleeIrmSanOecine2ts7o6le8r-amnKze-En

/BGeenneernalntoulnergan/cDesescrip

1/4″ NPTF über / above 0.5 6 üb3e0r / ab1o2v0e 400.05 6 30 120 40

bis / up to

6 30 12b0is / u4p0t0o 10006 30 120 400 100

Connection oil sump heater

Sight glass

3 ±0.1 ±0.2 ±0.3 ±0.5 ±±00..81 ±0.2 ±0.3 ±0.5 ±0. /8″ NPTF Unbemaßte Radien / UndimenUsinobneemd araßdteii:R-adien / UOnbdeimrfeläncshioenneadngraadbiei:n-/
Indication of surface textu
1 1/8″- 18 UNEF DIN EN ISO 1302

L Connection thermal protection thermostat 1/8″ NPTF eoncrkefLpreshsWaonpiriupeegnwostaapiorfiwiopineeorrprrnteeatdgnrnsl)ai,rn.esfndosr000tccfrrjijmhohesanu|||aiuesdtfÖBBszmeistt,eeoiltodsrttanirrerVcZnsiiunhffeusffscerpsttuprkto(sBBaracsretnoctellaiaakdrtclltrhueittohoettnnsaneg,34in)odrd.gnheaelfesiüvlisieerptfsrredyessriveoitccefhWhnpewtaaairoielrrrtntednes, r000ajijls|||

Betrifft Blatt 4 ÖZludbruechkösricführe2rh-peoitlsesnchtfaelrtnetr Betrifft Blatt 3

(aBlsetZriuffbt eBhlaötrt

f3ü)r

2-pol

entfernt

(Betrifft

11205 1B1la2t0t 63) 11160

29.10.20 29.10.20 08.10.20

1S1. 2B0ü5ttner 1S1. 2B0ü6ttner 1S1. 1B6ü0ttner

J.2K9.e1u0e.2rl0eber J.2K9.e1u0e.2rl0eber J.0K8e.1u0e.r2le0ber

S. Büttner S. Büttner S. Büttner

J. Keuerleber J. Keuerleber J. Keuerleber

7 ©OMDanfos7s | OCCloiilmnfinaltteeecrStiool6untiooinl sle| v2e0l2r3e.0g7ula6tor 5 5 AQ4543056515517/M685″1e-2n-1×080410,U250N1E|F25 3 hhwmuudrhetznhauefmneidemomble.hredtotwuen,reeeiuriaoregofntnteesptiesssglfdvvuangtntnAiGrfttodegrteeenbühoeeotthialtw.nntsernrlgeriidornfseessn–,-..steuOatsdcduicosoZ0000tfehvaotnftwieenmhmhhhhounfdrnewinieapascadFr,||||eMchfgstVelalki.tABBBeldpicrletslwssitha/asrmeueee.avtitdtutiReerslftttiuhewAuesinnnrrrbsordenliiilitfutllufffa,ärgtlevfffPrthütlirittthzutogec.eaibsuegtnkhBBBmitieenexlultiiistctpcnlllnnayreSaaaohratgenrh-ecmetttg,sdevsdhmtttsguGmlsiadeoeenI322ouendrussgdntva+bheitneleleaurianiis3zaalcdTttletahtbvauDesrietoolotcnstieoio.rrhoraisibktnlZzsnthieueznaumfdeom.hd-otweiurNaoeofesislfdvvntnAitrtegteeehethi.lnntsrnrliirseess–,-..Lt GZ0000hhhhu-Bs||||ta.ABBBu/ueeerRftttenrrreiiiihfffavfffettth.BBBmllleaaatttvttt o322n+3Teile-Nr. LG-Baureihe

10699 10977 10724

15.07.20 28.02.20 28.01.20

J.1F0a6ß9b9ender 1S0. 9B7ü7ttner
J.1F0a7ß2b4ender

J.1K5e.0u7e.r2le0ber J. Faßbender

28A..0L2a.2y0h

S. Büttner

J.2K8e.0u1e.r2le0ber J. Faßbender

J. Keuerleber A. Layh
J. Keuerleber

10928

15.01.20 J.1F0a9ß2b8ender 15A..0L1a.2y0h J. Faßbender

A. Layh

Änd.-Nr. / Mod-No. Datum / DaÄtendB.-eNarr.b/. M/ Eoddi-tNedo. GDeapturümft//DAaptper.BMeaarßb./ D/ EimdeitnesdioGneprüft /PAapspsru. nMga/ßC/leDaimraenncseion

Rz 160

GEPAasBsoucnkgG/mCblHea-rBaennczestraße

10| Declaration of incorporation

Declaration of incorporation for incomplete machinery in accordance with EC Machinery Directive 2006/42/EC, Annex II 1. B

Manufacturer:

Bock GmbH Benzstraße 7 72636 Frickenhausen, Germany

We, as manufacturer, declare in sole responsibility that the incomplete machinery

Name: Types:

Semi-hermetic compressor HG(X)12P/60-4 S (HC) …………………… HG(X)88e/3235-4(S) (HC) UL-HGX12P/60 S 0,7……………………… UL-HGX66e/2070 S 60 HGX12P/60 S 0,7 LG …………………….. HGX88e/3235 (ML/S) 95 LG HG(X)22(P)(e)/125-4 A …………………… HG(X)34(P)(e)/380-4 (S) A HGX34(P)(e)/255-2 (A) ………………….. HGX34(P)(e)/380-2 (A)(K) HA(X)12P/60-4 ……………………………… HA(X)6/1410-4 HAX22e/125 LT 2 LG ……………………. HAX44e/665 LT 14 LG HGX12e/20-4 (ML/S) CO2 (LT) ……….. HGX44e/565-4 S CO2 UL-HGX12e/20 (S/ML) 0,7 CO2 (LT)… UL-HGX44e/565 S 31 CO2 HGX12/20-4 (ML/S/SH) CO2T………….. HGX46/440-4 (ML/S/SH) CO2 T UL-HGX12/20 ML(P) 2 CO2T…………. UL-HGX46/440 ML(P) 53 CO2T HGZ(X)7/1620-4 ……………………………. HGZ(X)7/2110-4 HGZ(X)66e/1340 LT 22…………………… HGZ(X)66e/2070 LT 35
HRX40-2 CO2 T H………………………….. HRX60-2 CO2 T H

Name:

Open type compressor

Types:
D

F(X)2 …………………………………… F(X)88/3235 (NH3) FK(X)1………………………………….. FK(X)3

GB
Serial number:

FK(X)20/120 (K/N/TK)…………….. FK(X)50/980 (K/N/TK) BC00000A001 BN99999Z999

complies with the following provisions of the above-mentioned Directive:

According to Annex I, points 1.1.2, 1.1.3, 1.1.5, 1.3.2, 1.3.3, 1.3.7, 1.5.1, 1.5.2, 1.5.13 and

1.7.1 to 1.7.4 (excepted 1.7.4 f) are fulfilled.

Applied harmonised standards, in particular:

EN ISO 12100 :2010

EN 12693

:2008

Safety of machinery — General principles for design — Risk assessment and risk reduction Refrigerating systems and heat pumps — Safety and environmental requirements — Positive displacement refrigerant compressors

Remarks:

We also declare that the special technical documentation for this incomplete machine has been created in accordance with Annex VII, Part B and we obligate to provide these upon reasoned request from the individual national authorities by data transfer.
Commissioning is prohibited until it has been confirmed that the machinery into which the incomplete machine above is to be incorporated complies with the EC Machinery Directive and an EC Declaration of Conformity, Annex II. 1. A exists.

Authorized person for compiling and handing over technical documentation:

Bock GmbH Alexander Layh Benzstraße 7 72636 Frickenhausen, Germany

Frickenhausen, 04th of January 2021

i. A. Alexander Layh, Global Head of R&D

26 | AQ453056555765en-000201

10| Declaration of incorporation

Declaration of incorporation of partly completed machinery in accordance with UK Statutory Instrument Supply of Machinery (Safety) Regulations 2008, Annex II 1. B

Manufacturer:

Bock GmbH Benzstraße 7 72636 Frickenhausen, Germany

We, as manufacturer, declare in sole responsibility that the partly completed machinery

Name: Types:

Semi-hermetic compressor HG(X)12P/60-4 S (HC) …………………… HG(X)88e/3235-4(S) (HC) UL-HGX12P/60 S 0,7……………………… UL-HGX66e/2070 S 60 HGX12P/60 S 0,7 LG …………………….. HGX88e/3235 (ML/S) 95 LG HG(X)22(P)(e)/125-4 A …………………… HG(X)34(P)(e)/380-4 (S) A HGX34(P)(e)/255-2 (A) ………………….. HGX34(P)(e)/380-2 (A)(K) HA(X)22e/125-4 ……………………………..HA(X)6/1410-4 HAX22e/125 LT 2 LG ……………………. HAX44e/665 LT 14 LG HGX12e/20-4 (ML/S) CO2 (LT) ……….. HGX44e/565-4 S CO2 UL-HGX12e/20 (S/ML) 0,7 CO2 (LT)… UL-HGX44e/565 S 31 CO2 HGX12/20-4 (ML/S/SH) CO2T………….. HGX46/440-4 (ML/S/SH) CO2 T UL-HGX12/20 ML(P) 2 CO2T…………… UL-HGX46/440 ML(P) 53 CO2T HGZ(X)7/1620-4 ……………………………. HGZ(X)7/2110-4 HGZ(X)66e/1340 LT 22…………………… HGZ(X)66e/2070 LT 35
HRX40-2 CO2 T H………………………….. HR(Z)X60-2 CO2 T (H)(V)

Name:

Open type compressor

Types:

F(X)2 …………………………………………… F(X)88/3235 (NH3)

FK(X)1………………………………………….. FK(X)3

FK(X)20/120 (K/N/TK)…………………….. FK(X)50/980 (K/N/TK)

Serial number:

BC00000A001 BN99999Z999

complies with the following provisions of the above-mentioned Statutory instrument:

According to Schedule 2, part1, points 1.1.2, 1.1.3, 1.1.5, 1.3.2, 1.3.3, 1.3.7, 1.5.1, 1.5.2,

1.5.13 and 1.7.1 to 1.7.4 (excepted 1.7.4 f) are fulfilled.

Designated standards: EN ISO 12100 :2010

EN 12693

:2008

Remarks:

We also declare that the special technical documentation for this partly completed machine has been created in accordance with Annex II, 1. B and we obligate to provide these upon reasoned request from the individual national authorities by data transfer.
Commissioning is prohibited until it has been confirmed that the machinery into which the partly completed machine above is to be incorporated complies with the UK Statutory Instrument Supply machinery (Safety) regulations 2008 and an EC Declaration of Conformity, Annex II, 1. A exists.

Authorized person for compiling and handing over technical documentation:

Bock GmbH Alexander Layh Benzstraße 7 72636 Frickenhausen, Germany

Frickenhausen, 14th of October 2022

i. A. Alexander Layh, Global Head of R&D

AQ453056555765en-000201 | 27

28 | AQ453056555765en-000201