Danfoss UL-HGX12e CO2 LT Reciprocating Compressor User Guide

User Guide for Danfoss models including: UL-HGX12e CO2 LT Reciprocating Compressor, UL-HGX12e CO2 LT, Reciprocating Compressor, Compressor

BOCK UL-HGX12e CO2 LT

File Info : application/pdf, 36 Pages, 3.95MB

AQ450435606290en-US0301

Reciprocating Compressor
BOCK® UL-HGX12e CO2 LT
Operating guide

UL-HGX12e/20 ML 0,7 CO2 LT UL-HGX12e/30 ML 1 CO2 LT UL-HGX12e/40 ML 2 CO2 LT

UL-HGX12e/20 S 1 CO2 LT UL-HGX12e/30 S 2 CO2 LT UL-HGX12e/40 S 3 CO2 LT

Translation of the original instructions

AQ450435606290en-US0301

Foreword

Risk of accidents. Refrigerating compressors are pressurized machines and, as such, call for heightened caution and care in handling. Improper assembly and use of the compressor can result in serious or fatal injury! · To avoid serious injury or death, observe all safety instructions contained in these
instructions before assembly and before using the compressor! This will avoid misunderstandings and prevent serious or fatal injury and damage! · Never use the product improperly but only as recommended by this manual! · Observe all product safety labels! · Refer to local building codes for installation requirements!

CO2 applications require a completely new kind of system and control. They are not a general solution for the substitution of F-gases. Therefore, we expressly point out that all information
in these assembly instructions has been provided according to our current level of knowledge
and may change due to further development.

Legal claims based on the correctness of the information cannot be made at any time and are

hereby expressly excluded.

Unauthorized changes and modifications to the product not covered by this manual are prohibited and

will void the warranty!

This instruction manual is a mandatory part of the product. It must be available to the personnel who

operate and maintain this product. It must be passed onto the end customer along with the unit in which the compressor is installed.

This document is subject to the copyright of Bock GmbH, Germany. The information provided in this

manual is subject to change and improvements without notice.

Contents

Page

1 Safety.............................................................................................................................4 1.1 Identification of safety instructions....................................................................................... 4 1.2 Qualifications required of personnel...................................................................................... 4 1.3 Safety instructions.................................................................................................................5 1.4 Intended use.......................................................................................................................... 5
2 Product description....................................................................................................... 6 2.1 Short description................................................................................................................... 6 2.2 Name plate............................................................................................................................ 7 2.3 Type key................................................................................................................................. 7

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Contents

Page

3 Areas of application.......................................................................................................8 3.1 Refrigerants........................................................................................................................... 8 3.2 Oil charge.............................................................................................................................. 8 3.3 Limits of application.............................................................................................................. 9

4 Compressor assembly................................................................................................... 10 4.1 Storage and transportation.................................................................................................... 10 4.2 Setting up.............................................................................................................................. 10 4.3 Pipe connections................................................................................................................... 11 4.4 Pipes...................................................................................................................................... 11 4.5 Flange shut-off valves (HP/LP).............................................................................................. 11 4.6 Laying suction and pressure lines......................................................................................... 12 4.7 Operating the shut-off valves................................................................................................ 12 4.8 Operating mode of the lockable service connections............................................................ 13 4.9 Oil return................................................................................................................................ 14 4.10 Suction pipe filter................................................................................................................... 14

5 Electrical connection.....................................................................................................15

5.1 Information for contactor and motor contactor selection.......................................................15

5.2 Connection of the driving motor.............................................................................................16

5.3 Circuit diagram for direct start 280 V / 460 V Y................................................................. 18

5.4 Electronic trigger unit INT69 G.............................................................................................. 20

5.5 Connection of the electronic trigger unit INT69 G..................................................................20

5.6 Functional test of the electronic trigger unit INT69 G............................................................ 21 US

5.7 Oil sump heater...................................................................................................................... 21

5.8 Selection and operation of frequency converters.................................................................. 21

6 Commissioning.............................................................................................................. 22 6.1 Preparations for start-up....................................................................................................... 22 6.2 Pressure strength test........................................................................................................... 22 6.3 Leak test............................................................................................................................... 22 6.4 Evacuation............................................................................................................................. 23 6.5 Refrigerant charge................................................................................................................. 23 6.6 Start-up................................................................................................................................. 24 6.7 Pressure switch..................................................................................................................... 24 6.8 Pressure relief valves.............................................................................................................25 6.9 Avoiding slugging................................................................................................................... 26 6.10 Filter dryer............................................................................................................................. 26

7 Maintenance.................................................................................................................. 26 7.1 Preparation............................................................................................................................ 26 7.2 Work to be carried out........................................................................................................... 27 7.3 Spare parts recommendation / accessories.......................................................................... 27 7.4 Lubricants..............................................................................................................................27 7.5 Decommissioning.................................................................................................................. 27

8 Technical data............................................................................................................... 28

9 Dimensions and connections........................................................................................ 30

10 Declaration of incorporation......................................................................................... 32 11 UL-Certificate of Compliance........................................................................................ 34

AQ450435606290en-US0301| 3

1 | Safety
1.1 Identification of safety instructions:
Indicates a dangerous situation which, if not avoided, will cause immediate fatal or serious injury Indicates a dangerous situation which, if not avoided, may cause fatal or serious injury Indicates a dangerous situation which, if not avoided, may immediately cause fairly severe or minor injury. Indicates a situation which, if not avoided, may cause property damage
Important information or tips on simplifying work

1.2 General safety instructions

Risk of accident.

Refrigerating compressors are pressurized machines and therefore

require particular caution and care in handling.

The maximum permissible overpressure must not be exceeded, even for testing purposes.

Danger of suffocation! CO2 is a nonflammable, acidic, colorless and odorless gas and heavier than air. Never release significant volumes of CO2 or the entire contents of the system into closed rooms!
Safety installations are designed or adjusted in accordance with EN
378-2 or appropriate national safety standards.

Risk of burns! · Depending on the operating conditions, surface temperatures of over
140°F (60°C) on the pressure side or below 32°F (0°C) on the suction side can be reached. · Avoid contact with refrigerant under any circumstances. Contact with refrigerant can lead to severe burns and skin irritations.

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1 | Safety

1.3 Intended use

The compressor may not be used in potentially explosive environments!

· These assembly instructions describe the standard version of the compressors 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 Pressure Equipment Directive, outside the EU according to the respective national regulations and guidelines).
Commissioning is only permissible if the compressors have been installed in accordance with these assembly instructions and the entire system into which they are integrated has been inspected and approved in accordance with legal regulations.

The compressors are intended for ance with the limits of application.

use

with

CO2

transcritical

and/or

subcritical

systems

compli-

Only the refrigerant specified in these instructions may be used!

Any other use of the compressor is prohibited!

1.4 Qualifications required of personel D

Inadequately qualified 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 qualifications listed

below:

· e.g., a refrigeration technician or refrigeration mechatronics 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 the work to be carried out and

recognizing any potential dangers.

AQ450435606290en-US0301| 5

2 | Product description
2.1 Short description
· Semi-hermetic two-cylinder reciprocating compressor with suction gas cooled driving motor. · The flow of refrigerant sucked in from the evaporator is led over the engine and provides for a
particularly intensive cooling. Thus the engine can be kept on a relatively low temperature level specially during high load. · Oil pump independent of direction of rotation for reliable and safe oil supply. · One decompression valve each on the low and high pressure side, which vent into the atmosphere when inadmissibly high pressure levels are reached.
Transport eyelet

D Oil pump
US Terminal box

Fig. 1

Valve plate Name plate Oil sight glass
Cylinder cover Discharge
shut-off valve

Suction shut-off valve

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

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2 | Product description

2.2 Name plate (example)

BOCK Bock GmbH, Benzstr. 7 72636 Frickenhausen, Germany

thermally protected system

1 Type : UL-HGX12e/40 S 3 CO2 LT 2 No : BC12345A001

267,03123 cfh

7 8

10,7/6,2A

111A 64A

372,28148 cfh

10 11

LP/HP = 1450/1451000p/1s0ig0 bar IP66

Oil:ÖBl:OBCOCKCSKlE8luu5bb5E5EE8855

Fig. 3

1 Type designation 2 Machine number 3 maximum operating current 4 Starting current (rotor blocked) 5 LP: max. admissible operating

6 Voltage, circuit, frequency 7 Nominal rotation speed 8 Displacement 9 Voltage, circuit, frequency 10 Nominal rotation speed

} 50 Hz } 60 Hz

pressure (g) Low pressure side 11 Displacement

HP: max. admissible operating

12 Oil type filled at the factory

pressure (g) High pressure side 13 Terminal box protection type

Observe the limits of application

Electrical accessories can change

diagrams!

the IP protection class!

2.3 Type key (example)
UL -HG X 1 2 e / 40 S 3 CO2 LT

¹) HG ²) X ³) ML -
S -

Low Temperature

CO2 version HP code for motor size

Compressor version 3)

Swept volume

e-series

Number of cylinders

Size

Oil charge ²)

Series ¹)

Hermetic Gas-Cooled (suction gas-cooled)

Identification UL compressor

Ester oil charge

Deep freezing at low and medium evaporation temperatures

For frequency regulation and extended limits of application

AQ450435606290en-US0301| 7

3 | Areas of application

3.1 Refrigerants · R744: CO2 (required CO2 quality 4.5 (< 5 ppm H2O))

3.2 Oil charge
The compressors are filled at the factory with the following oil type: Compressor version ML and S: BOCKlub E85

Property damage possible.
The oil level must be in the visible part of the sight glass; damage to the compressor is possible if overfilled or underfilled!

max.
Oil level min.

D US

~~ 21 fl.oz 0,6 Ltr. Fig. 4

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3 | Areas of application
3.3 Limits of application
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 -4°F ... 140°F (-20 °C) - (+60 °C). - Max. permissible discharge end temperature 320°F (160 °C). - Min. discharge end temperature 122°F (50 °C). - Min. oil temperature 86°F (30 °C). - Max. permissible switching frequency 12x /h. - A minimum running time of 3 min. steady-state condition
(continuous operation) must be achieved. Avoid continuous operation in limit range.
Max. permissible operating pressure (LP/HP)1): 1450/1450 psig, 100/100 bar
1) LP = Low pressure HP = High pressure D
US

AQ450435606290en-US0301| 9

4 | Compressor assembly

New compressors are factory-filled with inert gas. 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.

4.1 Storage and transportation

Storage at -22°F ... 158°F (-30 °C) - (+70 °C), maximum permissible relative humidity 10 % - 95 %, no condensation. Do not store in a corrosive, dusty, vaporous atmosphere or in a combustible environment.

Use transport eyelet. Do not lift manually! Use lifting gear!

4.2 Setting up D US

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.

Do not use in a corrosive, dusty, damp atmosphere or a combustible environment.
Setup on an even surface or frame with sufficient load-bearing capacity. Single compressor preferably on vibration damper. Compound connection basically rigid.

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4 | Compressor assembly

4.3 Pipe connections

Damage possible.
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. 5: graduated internal diameter

Material soldering / welding connection: S235JR
The pipe connections have graduated inside diameters so that pipes with standard 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.

4.4 Pipes

Pipes and system components must be clean and dry inside and free of scale, swarf and layers of

rust and phosphate. Only use hermetically sealed 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 Flange shut-off valves (HP/LP)

Risk of injury.

The compressor must be depressurized through connections A1 and B1 before commencing any work and prior to connecting to the refrigerant system.

Fig. 6
© Danfoss | Climate Solutions | 2023.09

Fig. 7

AQ450435606290en-US0301| 11

4 | Compressor assembly
4.6 Laying suction and pressure lines
Property damage possible. Improperly installed pipes can cause cracks and tears, which can result in a loss of refrigerant.
Proper layout of the suction and pressure lines directly after the compressor is integral to the smooth running and vibration behavior of the system. A rule of thumb: Always lay the first pipe section starting from the shut-off valve downwards and parallel to the drive shaft.

D US

As short as possible

Rigid fixed point

Fig. 8

4.7 Operating the shut-off valves (example)
Before opening or closing the shut-off valve, release the valve spindle seal by approx. 1/4 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. 9

Fig. 10

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4 | Compressor assembly
4.8 Operating mode of the lockable service connections (example)
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.

Service connection opened

Pipe connection
Fig. 11
Compressor

Pipe connection

Spindle

Connection open

Opening the service connection Spindle: Turn 1/2 - 1 turn to the right clockwise. --> Service connection opened / shut-off valve opened.

Fig. 12
Compressor

After activating the spindle, generally fit the spindle protection cap again and tighten with 40 - 50 Nm. This serves as a second sealing feature during operation.

AQ450435606290en-US0301| 13

4 | Compressor assembly
4.9 Oil return To ensure the oil return function will work reliably no matter what kind of system configuration you are using, Bock recommends incorporating oil separators or oil level monitoring equipment. The "O" connection is already available from the factory for the purpose of installing the additional oil level monitoring component. Oil should be returned from the oil separator to the compressor via the "D1" connection provided for this purpose on the compressor.
4.10 Suction pipe filter For systems with long pipes and higher degree of contamination, a filter on the suction-side is recommended. The filter has to be be renewed depending on the degree of contamination (reduced pressure loss).
D US

14 | AQ450435606290en-US0301

5 | Electrical connection

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

When attaching accessories with an electrical cable, a minimum bending radius of 3x the cable diameter must be maintained for laying the cable.

Connect the compressor motor in accordance with the circuit diagram (see inside of terminal box).
Use suitable cable glands 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

All protection equipment, switching and monitoring devices must comply with the local safety reg- US ulations and established specifications (e.g. VDE) as well as the manufacturer's specifications. Motor protection switches are required! Motor contactors, feed lines, fuses and motor protection switches must be rated according to the maximum operating current (see name plate). For motor protection, use a current-dependent, time-delayed overload protection device for monitoring all three phases. Adjust the overload protection device so that it must be actuated within 2 hours at 1.2 times the maximum working current.

AQ450435606290en-US0301| 15

5| Electrical connection
5.2 Connection of the driving motor The compressor is designed with a motor for star-delta circuits.
Designation on the name plate
/ Y
D US

16 | AQ450435606290en-US0301

5| Electrical connection

Star-delta start-up is only possible for (e.g. 280 V) power supply. Example:

Direct start

280 V Star-delta start

460 V Y Direct start only

L1 L2 L3

L1 L2 L3 Insulators

L1 L2 L3

D
Insulators
US
INFO The supplied insulators must be mounted according to the illustrations as shown.
The connection examples shown refer to the standard version. In the case of special voltages, the instructions affixed to the terminal box apply.

AQ450435606290en-US0301| 17

5.3 Circuit diagramm for direct start 280 V / 460 V Y

QA1

FC1.1

I> I> I>

QA2

FC2

SF1

QA2

FC1.1

L1 L2 L3 N PE

-EC1 3/~Y

BT1

12 14 11 L N B1 B2

INT69G
CAonmspcrhelussßokratsetremninVael rbdoixchter
Fig. 13

BP1

High pressure safety monitor

BP2

Safety chain (high/low pressure monitoring)

BT1

Cold conductor (PTC sensor) motor winding

BT2

Thermal protection thermostat (PTC sensor)

BT3

Release switch (thermostat)

EB1

Oil sump heater

EC1

Compressor motor

18 | AQ450435606290en-US0301

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

EB1 P>
BP1
BT2
BT2

QA2

BP2

BT3

N PE
D US

FC1.1 FC2 INT69 G
QA1
QA2 SF1

Motor protection switch Control power circuit fuse Electronic trigger unit INT69 G Main switch Net switch Control voltage switch

AQ450435606290en-US0301| 19

5| Electrical connection
5.4 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.
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.

5.5 Connection of the trigger unit INT69 G

D US 1

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

Measure circuit BT1 and BT2 (PTC

R2 sensor) must not

come into contact

with external

voltage.

1 N N 43 43 11 12 14 X2 1 2 3 4 5 6

This would destroy

+
Steuerstrom- BT1
-
kreis

+ the trigger unit BITN2T69 G and PTC
- sensors.

INT69 G

OG OG

+
BT1
+
BT2
-

B1 B2

12 14 11

N L
CSotenutreorlstcriorcmu-it
kreis
Fig. 14 Terminal box

20 | AQ450435606290en-US0301

5| Electrical connection

5.6 Function test of the trigger unit INT69 G
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

11-14

3. Remove PTC connector 11-12

B2 12 14 11

4. Insert PTC connector

11-12

Fig. 15

5. Reset after mains on

11-14

5.7 Oil sump heater

In order to avoid damage to the compressor, the compressor has to be equipped with an oil sump heater.

The oil sump heater must generally be connected and operated!

Operation: The oil sump heater operates when the compressor is at a standstill.

When the compressor starts up, the oil sump heating switches off.

Connection: The oil sump heater must be connected via an auxiliary contact (or parallel wired auxiliary US contact) of the compressor contactor to a separate electric circuit.
Electrical data: 115 V - 1 - 60 Hz, 80 W. 5.8 Selection and operation of compressors with frequency converters
For safe operation of the compressor, the frequency converter must be able to apply an overload of at least 160% of the compressor's maximum current (I-max.) for at least 3 seconds.

When using frequency converters, the following things must also be observed: 1. The maximum permissible operating current of the compressor (I-max) (see type plate or
technical data) must not be exceeded. 2. If abnormal vibrations occur in the system, the affected frequency ranges in the frequency
converter must be blanked out accordingly. 3. The maximum output current of the frequency converter must be greater than the maximum
current of the compressor (I-max).

4. After each compressor start, run for at least 1 minute at a frequency of at least 50 Hz.

5. Carry out all designs and installations in accordance with the local safety regulations and common rules (e.g. VDE) and regulations as well as in accordance with the specifications of the frequency converter manufacturer
The permissible frequency range can be found in the technical data.

Rotational speed range

0 - f-min

Start-up time

< 1 s

Switch-off time

immediately

f-min/f-max see chapter: Technical data: permissible frequency range

f-min - f-max ca. 4 s

AQ450435606290en-US0301| 21

6 | Commissioning
6.1 Preparations for start-up
In order to protect the compressor against inadmissible operating conditions, high-pressure and low-pressure pressostats controls 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!
When the compressor is not running, depending on ambient temperature and amount of refrigerant charge, it is possible that the pressure may rise and exceed permitted levels for the compressor. Adequate precautions must be taken to prevent this happening (e.g. using a cold storage medium, a receiver tank, a secondary refrigerant system, or pressure relief devices).

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 UL-/CSA-

Standards or a corresponding safety standard without the inclusion of the compressor.

6.3 Leak test

Risk of bursting! The compressor must only be pressurized using nitrogen (N2). Never pressurize 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 UL-/CSA-Standards or a corresponding safety standard, while always observing the maximum permissible overpressure for the compressor.
Only dry test gases may be used for the leak test, e.g. nitrogen N2 min. 4.6 (= purity 99.996 % or higher).

22 | AQ450435606290en-US0301

6 | Commissioning

6.4 Evacuation

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. Turn on the oil sump heater. Evacuate the suction and discharge pressure sides using the vacuum pump. The vacuum has to be broken with nitrogen several times between the evacuation.
At the end of the evacuation process, the vacuum should be < 0.02 psig (1.5 mbar) when the pump is switched off. Repeat this process as often as is required.

6.5 Refrigerant charge

Wear personal protective clothing such as goggles and protective

gloves!

Make sure that the suction and pressure line shut-off valves are open.
Depending upon design of the CO2 refrigerant filling bottle (with/without tubing) CO2 can be filled in liquid after weight or gaseously.
Use only high-dried CO2 quality (see chapter 3.1)! Filling the liquid refrigerant: It is recommended that the system first be filled at standstill with gas on the high-pressure side up to a system pressure of at least 75 psig (5.2 bar) (if it is filled below 75 psig (5.2 bar) with liquid, there is a risk of dry ice formation). Further filling according to system. To eliminate the possibility of dry ice formation when the system is operating (during and after the filling process), the shut-off point of the low-pressure switch should be set to a value of at least 75 psig (5.2 bar).
Never exceed the max. permissible pressures while charging. Precautions must be taken in time.

A refrigerant supplement, which may become necessary after start-up, can be topped up in vapor form on the suction side.
Avoid overfilling the machine with refrigerant! Do not charge liquid refrigerant into the suction-side on the compressor. Do not mix additives with the oil and refrigerant.

AQ450435606290en-US0301| 23

6 | Commissioning

6.6 Start-up

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

Check that the safety and protection devices (pressure switch, motor protection, electrical contact protection measures, etc.) are functioning properly. Switch on the compressor and let it run for at least 1 minute at a frequency of at least 50 Hz. Only then may the speed of the compressor be reduced. The machine should reach a state of equilibrium. Check the oil level: The oil level must be visible in the sight glass. After a compressor is replaced, the oil level must be checked again. If the level is too high, oil must be drained off (danger of oil liquid shocks; reduced capacity of the refrigerating system).

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

6.7 Pressure switch

Suitably adjusted pressure switches according to UL 207 / EN 378 or national standards that switch

off the compressor before reaching the maximum permissible operating pressure must be installed

in the system. The pressure reduction for the pressure switches can occur either at the suction and

pressure lines between the shut-off valve and compressor or at the non-lockable connections for the

shut-off valves (connections A and B, see Chapter 9).

24 | AQ450435606290en-US0301

6 | Commissioning
6.8 Pressure relief valves The compressor is fitted with two pressure relief valves. One valve each on the suction and discharge side. If excessive pressures are reached, the valves open and prevent further pressure increase. Thereby CO2 is blown off to the ambient! In the event that a pressure relief valve activates repeatedly, check valve and replace if necessary as during blow-off extreme conditions can occure, which may result in a permanent leak. Always check system for refrigerant loss after activation of pressure relief valve! The pressure relief valves do not replace any pressure switches and the additional safety valves in the system. Pressure switches must always be installed in the system and designed or adjusted in accordance with EN 378-2 or appropriate safety standards. Failure to observe can result in risk of injury from CO2 streaming out of the two pressure relief valves!
D US
CO2 streaming out
Fig. 16

AQ450435606290en-US0301| 25

6 | Commissioning

6.9 Avoiding slugging
Slugging can result in damage to the compressor and cause refrigerant to leak.

To prevent slugging:
The complete refrigeration plant 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 superheating at the compressor input should be > 15 K (check the setting of the expansion valve). Regard oil temperature and pressure gas temperature. (The pressure gas temperature has to be high enough min. 122°F (50 °C), so the oil temperature is > 86°F (30 °C) ). The system must reach a state of equilibrium. Particularly in critical systems (e.g. several evaporator points), measures such as the use of liquid traps, solenoid valve in the liquid line, etc. are recommended.
There should be no movement of refrigerant in the compressor while the system is at a
standstill.

6.10 Filter dryer

Gaseous CO2 has a significantly lower solubility in water than other refrigerants. At low temperatures

it can therefore cause blocking of valves and filters due to ice or hydrate. For this reason we recom-

mend the use of an adequately sized filter drier and a sight glass with a moisture indicator.

7 | Maintenance

7.1 Preparation

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-on lock.
The decompression has to be carried out in a way that no dry ice respectively solid CO2 is produced which blocks the outlet and could hinder the streaming out of CO2. Otherwise, there is the danger that pressure can be built up again.

26 | AQ450435606290en-US0301

7 | Maintenance

7.2 Work to be carried out
In order to guarantee optimum operational reliability and service life of the compressor, we recommend carrying out servicing and inspection work at regular intervals:
Oil change: - not mandatory for factory-produced series systems. - for field installations or when operating near the application limit: for the first time after 100
to 200 operating hours, then approx. every 3 years or 10,000 - 12,000 operating hours. Dispose of used oil according to the regulations; observe national regulations.
Annual checks: Oil level, leak tightness, running noises, pressures, temperatures, function of auxiliary devices such as oil sump heater, pressure switch.

7.3 Spare part recommendation 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!

7.4 Lubricants

For operation with CO2 the following oil types are necessary:

compressor version ML and S: BOCKlub E85

7.5 Decommissioning
Close the shut-off valves on the compressor. CO2 does not need to be recycled and can therefore be blown off into the environment. It is essential to ensure good ventilation or conduct the CO2 into the outdoors to avoid danger of suffocation. When releasing CO2, avoid a fast drop in pressure to prevent oil from exiting with it. If the compressor is unpressurized, remove the piping on the pressure- and suction-side (e.g. dismantling of the shut-off valve, etc.) and remove the compressor using an appropriate hoist. Dispose of the oil inside in accordance with the applicable national regulations.
When decommissioning the compressor (eg. for service or replacement of the compressor) larger amounts of CO2 in the oil can be set free. If the decompression of the compressor is not sufficient enough, closed shut-off valves may lead to intolerable excessive pressure. For this reason the suction side (LP) and the high pressure side (HP) of the compressor have to be secured by decompression valves.

AQ450435606290en-US0301| 27

8 | Technical data

Oil charge
(sight glass center)
Oil charge
(ex works)
Suction line SV

Discharge line DV

Weight
permissible frequency range

Starting

current

(rotor locked)

Max. power consumption
Max. operating current
Voltage

Displacement
(1450 / 1740 rpm)
No. of cylinders

Type

28 | AQ450435606290en-US0301

Electrical data

Connections

UL-HGX12e/

30 - 70 265-290 V / 440-480 V Y - 3 - 60 Hz
© Danfoss | Climate Solutions | 2023.09

20 ML 0,7 CO2 LT 20 S 1 CO2 LT

50 / 60 Hz

cfh

61 / 73

2 / Y
A

2 kW (HP)

2 / Y
A

4,2 / 2,4 1.6 (2.2)

32 / 19

4,9 / 2,8 2.0 (2.7)

32 / 19

30 ML 1 CO2 LT 30 S 2 CO2 LT

2 100 / 120

9,0 / 5,2 2.6 (3.5)

111 / 64

9,9 / 5,7 3,1 (4.2)

111 / 64

40 ML 2 CO2 LT 40 S 3 CO2 LT

124 / 148

9,7 / 5,6 3,1 (4.2)

111 / 64

10,7 / 6,2 3.7 (5)

111 / 64

mm (inch)

Ltr. (fl.oz)

190

209
12,8 (1/2) 209

1,3 1,1

(5/8) (46) (39)

209

AQ450435606290en-US0301| 29

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 60 Hz operation. - Take account of the max. operating current / max. power consumption for design of fuses, supply lines and safety devices. Fuse: Consumption category AC3

8 | Technical data
D US

3 All specifications are based on the average of the voltage range 4 Cutting ring connector for steel tubes 5 For solder connections

9 | Dimensions and connections

Anschlüsse /

+2 +0,08 Connections

293 0 11,54 +20 +0,08Saugabsperrventil, Rohr (CLo/S

293 0 11,54 0 SV Suction line valve, tubeSV (LS/Sa
Centre of gravity Druckabsperrventil, Rohr S(Lu/

99 3,9 99 3,9 DV Discharge line valve, tuDbeV D(rL

Anschluss Saugseite, nicht aDbiss

7 6 5 4 A Connection suction side,AnotAlon

5,24

+0,08

133

338 0 13,31 0

133 5,24

+0,08
13,31 0

7 7 6 6 5 5 4 4 Anschluss Saugseite, abspeCrrbo

X X2 A1 Connection suction sideA, 1lockAanb

A X X2 Anschluss Druckseite, nicht aCbo

A SI1 SI1+2 293+0+,0281+12,54 +00,08 B CAnosncnhelcutsiosAnDndrsuisccckhhslaeürigstees,esaiB/bdsep, enACrornotb

+0,08 B1
X1 X1 A 293 A099113,,594 0293E 0 11,54E 0 D1

CACAnnoossnnccnnShheellVccuuttssiioossSCSDnnÖÖuaorodullcurdniilscütgrnirckcuoaeheakcnbtacfbkuüsrlmtrsihgpinnpoareeeuefnnrrsnrorvosDBrivgmdavme11eelvvneo,noettilemtiACAClo,li,lrsc,nntooRueÖ

133 5,24

338 0 13,13313 05,24

+0,08
13,3+10,008

133 5,24

+00,30388

13,31

145 5,71 145145,5751,71

145 5,71

+2 0

99 3,9 99 3,9 E X XO O X2 O,K O,K F

CÖolanbnDlaeVscstioDAn niossiclchpharleurgsssesulSrineaeEguavguasgleACveineot AOnilsdcrhaAliunssCHoeninßegcatsiotenmspuFecrtaiotÖOnuilrla

A XX J/J1XJX* 2 J/J1* X2 I

CAnosncnAhel1uctsiosACnÖnohlsnsocunthmeglcupatsfsihosetneSizmsauuupInceggtrsioaeACntiunot

59 2,32 D1 F Q D1 F Q SAI2 SBI2,L AB,BI ,L 4 xB,I15SI041,5x9 15 0S,5I91SI1 E J CÖolsnunmeBpcfthioeACniznoousninlcnsgheulcumtsiposnhDedrauiJstceckrhsaACernoig

59 2,32 X1 A J1 oSicl hsauBumg1plahsACeanotsnecnrhelcutsiosnDdrJuis1cckhsaÖoeirlligs

156 6,14 156 6,14 X1 X1 A 198 7,8 A198 7,8 EK SAnigshctDhgl1ulassssACWnosäncrnmhelecustsicoshnÖuotlzrKiltührcekrtSSfumüicrghon

+2
3+328 0

+2
338 0

145 5,71

82 3,22 82 3,22293 11,54293 11,54 X 242O9,K,53 242 9,53 O,K L CAnosncnheElcutsiosACnÖnotlhsnsecpnrhiemelcugatseiloslprnerÖogoltudieLllrcaputtriocoeACrknsmnos

+2 +0,08 O,K J/J1*O,K O,KO CAnosncnheFlcutsiosÖOnÖilolatidbel lrmeaavspineselraretugruOsleantosACronor

559002,302195,0609 +D200 119F,6Q9 +00S,0I82 XB,SLIS2I2B,I BX,LB,LJ/BJ,1IB*,I 4 x 15J/0J,159* *

Ölsumpfheizung Oil sump heater

no*unÖrlOyLlisilineuscfmuelumrpdufpehmdehfiaezinnaugtndegebrleinoviune(rlUryyLLiinfe-o)cfHrelu(rGUduXemLd1-f)a2HinnCGgdOXeb12leiv2iTe(CUr/yOLf-2o)HrT(GUXL1-)2HCGSQOIX1 12DDCD2TreoruucnCccon/kkmeOJeeIcnpnt2trtiolleaaACACnsssTsnnoottouuissnnoinnlccnnntgghheeevsslmlcucuavvttseelpsiivoosnnseennttrÖiiHaHllohStNHlePuQsiolIiDDru1ßstemuggsmADCDapaesfsneornph

15596 26,,3124 11D55826961 3626F,,,,2131Q2424 D2193F1Q1,54 4 x99 135,90,5999 34,19x98175,80,59214928 917,9,5883 7,8 MdimaßeensuinodnsAannsMddcihmacloüßensensnsueeinocfdnütisorAn(anUsnsLdfco-h)crCloü(UOnssnL2ee-T)cfCüt-iVOor en(2UrssTLfioo--v)rnCe(mrUOsL2iito-ATn)C-bwVOsiept2hresTrsiro-hvvnueetnmr-stoiiiltfoefAnnvbawuslnviptehdesrs(rUahvnLued-tn-)toH(ilUfeGf nLvX-au)1lHnv2edGesX(CUa1OnL2d-2e)H(LCUGTOLX/-2)1HL2GTeXC1O22e

LT / CO2

SI2 X1 X2

DScehcroaJmd1perreaÖosnisllssiscouuhnmlmuvpsapfslhvh,eeSizaLaSuPtuenIg2rgseDDitere CSCcoohnnrnnaKeedccettiirooaSSnnncisgffhoochahrrtulssuggccslahhlsasrr,saasDddeerXurrc1vvkaasllevvSCSeeicctoe

8D2 3,22 US

822933,2211,54 293 11,54 B1 242 9,53 242 9,53 +2

+0,08

(L/SWL)*

ALnöst-c/ShcluhswseWissXäa2rnmsecCshocl Connection therm(aLl/

+2 +500S,00V8 +A2119,69 DV B1 0

Ölsumpfheizung Oil sump heater

nounrlyLiinecfelurduemdfainngdebleivie(UryLf-o)Hr (GUXL1-)2HOCGOACXno12snc2nThelCcu/tsioOsnÖ2olsilTpleievgeel

SV A+01,08 DV Anschluss Öltemper

500 0 19,69 0500 0 19,69 0 MdimaßeensuinodnsAannsdchcloünssneecfütior n(Us Lfo-)rC(UOL2-T)C-VOe2rsTio-vnemrsiitoAnbwsipthersrhvuetn-toilfef nvaulnveds(UanLd-)H(UGLX-)1H2*GeÖOXlCislu1sOmu2m2pefphLCehTieOzau/2tnegrLnoTunrlyLiinecfelurduemdf*ainÖnOgldislebuslemiuvimep(UrfphyLehf-oie)zHrau(tGnUegXrLno1-)un2HrlyCGLiOXinec12fel2uTrduC/emOdf2ainnTgdebleivie(UrySLQIf1-o)HrDCD(eorGuUcnconXkLmee1c-pnt)rti2oHleanssCGstouioiOnlXntge12vsmav2elpTv

99 3,9 Druckentlastungsve

278 10,94

B1 MdimaßeensuinodnsAannsdchcloünssneecDfMdütiiorimamn(ßUeseneLfsou-ni)rnoCsd(nUOisoAL2ann-nT)ssCdc-VOhacleo2ünrnssTdsnio-eevnccefütomriorsniin(toUnsAnLefbow-sc)riCptt(heUOiorsL2rnhv-T)uesC-tn-VOtwoiel2fefrisntTvihao-uvlnnvesedmrhs(iiuUtoaAntL-db-w)osH(ipftUGhfeLrXsv-rh)v1aHue2lGtnve-toeXiClfe1sfOn2v:2aeulnLvCedTOs(/2UanLLd-T)H(UGLX-)1H2Ge9XC91O22e3LC,T9O/2 LT

99 3,9

SI2 Decompression valv Schraderanschluss
X1 Connection for schr

SV A1

DVB1

Schraderanschluss X2 Connection for schr
(L/SW)* = Löt-/Schw

397 15,62397S1V5,6A21

+ 2
513 0

205,123+00+,200820,2

+0,08 0

SV A1

278 10,94 278 10,94 278 10,94

278 10,94

HalbhermHetaislbchheerrmVeetrisdcichhetrerVHerGdic/ hSteemr Hi-hGe/rmSeetmici-choemrmperetiscscoor mHpGressor HG

397 15,62Transkritische Ausführung / transcritical version Transkritische Ausführung /

Subkritische Ausführung / subcritical version Subkritische Ausführung /

Typ /

Teile-Nr. /

Typ /

transcritical versionTeile-Nr. /

Typ /

Teile-Nr. / Typ /

subcritical versiToenile-Nr. /

397

type

Typ / part-no.

typeTeile-Nr. /

Typp/ art-no.

+2 +0,08 HGX12/20-4 ML(S)[SH] COt2yTpe 16428(16429)[16430] UL-HpGaXrt1-n2o/2.0 ML 2 CO2 T type16443

type

Teile-Nr. /

Typpa/ rt-no.

type

Teile-Nr. / Typ /part-no.

HGX12e/20-p4aMrt-Ln(So.) CO2 LtTyp1e6437(16438) UL-HGX12ep/2a0rtM-nLo.0,7 CO2tyLpTe 16452

Teile-Nr. / part-no.

HGX12/30-4 ML(S)[SH] COH2 GTX1126/2403-14(1M6L4(3S2))[[S1H64] 3C3O] 2UTL-H1G64X2182(/12604S2(9S)[H1)6343C0O] 2UTL-H1G64X4142(/12604M45L) 2HCGOX21T2e/30-146M44L3(S) CO2 LHTG1X61423e9/2(106-444M0L) (SU)LC-HOG2XL1T2e1/26043S71(1C64O328)LTUL-HGX11624e5/320 ML 0,7 CO2 LT 16452

15,62513 039270,125,062 HGX12/40-4 ML(S)[SH] COH2GTX1126/3403-44(1M6L4(3S5))[[S1H64] 3C6O] 2UTL-H1G64X3112(/13604M32L)[316C4O323]T UL-H1G64X4162/20 S(SHH) G3 XC1O22e/T40-146M44L4((S1)6C44O52) LHTG1X61424e1/3(106-444M1L) (SU)LC-HOG2XL1T2e1/36043M9L(1164C4O02) LUTL-HGX11624e5/420 S 1 CO2 LT

16453

HGX12/40-4 ML(S)[SH] CO2UTL-H1G64X3142(/13604S3(5S)[H1)6443C6O] 2UTL-H1G64X4172(/13604M48L) 3 CO2 T 16446

HGX12e/40-4 ML(SU)LC-HOG2XL1T2e1/36044S12(1C64O421)LTUL-HGX11624e5/530 ML 1 CO2 LT

16454

UL-HGX12/40 ML 4 CO2 T UL-H1G64X4192/30 S(SH) 4 CO2 T 16447(16448)
+2 +0,08 +2 +0,08 UL-HGX12/40 S(SH) 5 CO2UTL-H1G64X5102(/14604M51L) 4 CO2 T 16449
513 0 20,2 0 513 0 20,2 H0 albhermetischer Verdichter HG / Semi-hermetic compressor HG UL-HGX12/40 S(SH) 5 CO2 T 16450(16451)

UL-HGX12e/40 ML 2 CO2 LUTL-HGX11624e5/630 S 2 CO2 LT UL-HGX12e/40 S 3 CO2 LTUL-HGX11624e5/740 ML 2 CO2 LT
UL-HGX12e/40 S 3 CO2 LT

16455 16456 16457

Transkritische Ausführung / transcritical version

Subkritische Ausführung / subcritical version

HalbhermetischHeraVlbehredrimchetetisr cHhGer/VSeermdiic-hteerrmHeGtic/cSoemmpir-ehsesrmoreHticGcompressor HG 1 Typ/ type
HGX12/20-4 ML(S)[SH] CO2 T
Be HGX12/30-4 ML(S)[SH] CO2 T 0.65 360 132000.41650200 316040000013200 HGX12/40-4 ML(S)[SH] CO2 T

Typ / type

Teile-Nr. / part-no.

Typ / type

Teile-Nr. / part-no.

Typ / type

GTpueaßirltet-no-Nolre.. r/anzeTtyynppe// General casting toleTpreaairlten-n-Ncoer..s/ :

Zeic

HGX12/20-4 ML(S)[SH] CO2 T 16428(16429)[16430] UL-HGX12/20 ML 2 CO2 T 16443

HGX12e/20-4 ML(S) CO2 LT- 16437(16438) UL-HGX12Ge/u20ßMtoLle0,r7aCnOz2eLnT / G1e64n5e2ral casting toDlerara

HGX12/30-4 ML(S)[SH] CO2 T TrantHsrakGnrXist1ics2rc/i4thi0ce-a4Al MuvesLrf(üSsih)o[SrnuHn]gC/O2 T

16431(16432)[16433] UL-HGX12/20 S(SH) 3 CO2 T 16434(16T4r3a5nt)sr[1ak6nr4ist3ics6rc]ithiUceaLAl-HuvGesrfXüs1iho2r/nu30ngM/L 3 CO2 T
UL-HGX12/30 S(SH) 4 CO2 T

16444(16445) HGX12e/30-4 ML(S) CO2 16446 SubskHuriGbticXsr1ci2thiece/a4Al0uv-4sefrMüsLhio(rSnu)nCgO/2 16447(16448)

LLTTNB11ae66ui44n34m91/((u11N66s44ot44Se01ur))bgskUUUeurLLLipbt---HHHicsrGGGrücithXXXfitce111a222NB-/Aeeel Tua///ev233seu0y00ifnrüpsmSSMhi/eoL12runuN1CCesnOOCotgxOe22a/2rLLmgTTLTeinparütifo111t666n444/:555T345 ype

examinatio

Tp1166ea44irlt23e-n81-N((o11r.66. 44/ 23TtHH92yyGG))p[[p11eXX66/11442233//23000]] --44TtUUyyMMLLpp--LLeHH((/GGSS))XX[[SS11HH22//]]22CC00OOMS22(LSTT2H)CTp113O66eaC244irltO23eT-n81-2N((o11Tr.66. 44/Tp112366ea9244ir))lt44[[e-11n34-66N(UUo441r.LL336.--034/HH]]4GG5TtUUXX)yy11LLppTtHH22--eyHH//yGG44/pGGp00eXXXX/MS111122(LS22ee4H////2223)C00005O--MS44C2(LSMMOT2H2LL)((CTSS3O))C112CC66OOOT442452290TLL(1TT6Tp11466eaTp11544ir66ea1lt44e44-ir)ln34-t33eN-(on79-1rN.((o6.11r.4/66.444/534)80))TtHHyyGGTtUUpypyLLeXXpp--/11eHH22/GGee//XX23110022--44ee//MM2200LL((MSADGSSL))1lIelCCN0Cgw,OO7Oe22Ii2CmScLLOLhOTTeT2tinL/Tp112T66eatW7o44irlt633elTp-UUeen79-8eaNLL11((iorir11g---l66rat.HHem66-.44hn-nGG44/55Not34KXXz23:r.80.11e-())22/ADGEkneeTtUUgl//Iey44lN/yLLg)p00wp--GeeHHSM-I/imGGSceL3hXXnO2Ce11teOCi22n/2rO2eeatW//72Lo22lT006LlteeT8oMSirg-lLa1emh0nCr,taKz7O:11ne662-C(44EcknOL55egT672/s)LGT- eTpnea11eirl66ter-44an-55Nol23r.t.o/ lera

16434(1643H5G)[1X61423/460] -4UML-LH(GS)X[S1H2/]3C0OM2LT3 C1O6243T4(16413654)4[166436] ULH-HGGXX1122e//3400-M4LM3L(CSO) 2COT2 LT1614644641(16441)HGULX-1H2Ge/X4102-4e/M30L(MüSL)bC1eOCr2O/L2aTLbT1o6v4e411(166445441) UL-HGX12e/30 ML 1 CO2 LT

16454

UL-HGX12/30 S(SH) 4 CO2 T 16447(16448U) L-HGX12/30 S(SH) 4 CO2 T 16447(16448)

UL-HGX12/40 ML 4 CO2 T 16449

UL-HGX12e/30 S 2 CbOis2 L/Tup to 16455
UL-HGX12e/40 ML 2 CO2 LT 16456

übULe-rHG/ Xa1b2oe/v30eS 2 CO2 LT

16455

ULb-HisGX/ 1u2pGe/4ut0oßMtoLl2erCaOn2zLeTn / G1e6n45e6ral cas

UL-HGX12/40 S(SH) 5 CO2 T 16450(16451U) L-HGX12/40 S(SH) 5 CO2 T 16450(16451)

UL-HGX12e/40

S 3 CO2 LT
Unbemaßte

R1a64d±5i70en.U1U/nLUb-±HenG0mdXi.ma122ßeNB-et/ne4ae±0suiRn0iSoma.3/n3ud±NCesi0Odeot2e±n.r1Lra0/gTdU.ei5±ipn: 0rd-üi.±mf21t06e/4.n5T±87sy0ipo.enOI3neebdd

Gewicht / Weight: (kg) - DIN

Gußtoleranzen / GenerAalllgceamstienignGttouolßeletroraalnenzrcaeennsz:/eGne/nGe

sicherstellen, dass die Ware

ZuDstearnLdiefaenragnetliemfeursts swicihrderstellen, dass die Ware

VerinpacekuinnwgandfüfrreiesmicheZreunstand angeliefert wird

(Korrosionsschutz, Verpackung für sicheren

Transport).

ensure the delivery of parts

ons T(hceorsruopspioliner hparesvteonteionns,ure the delivery of parts

ranspinortaptrionp)e.r conditions (corrosion prevention,

rvielfäplatigcuknaggidnigesfeosr Dsaofkeumtraenntssp, ortation).

eilungWesieteinrgeasbIenhsoawltsiesVinedrviveelfrä-ltigung dieses Dokuments,

ausdrVüecrkwlicehrtugnegstuanttdet.MZiuttweilduenrg- seines Inhalts sind ver-

whsmatidttersuhewinbsoriutlutlebhRoTdcPthtioroadohzoeeeabntnecueenceitetundrexhenmctlpnrtaunr,Seeoratnhnte-epcmssg,degnGshrfouGüomletsadtwenrudonedusgetuabeidnclilcDi(TousritninehivKzaatcttreieenmhahbovnaauorrrewtoonlitcnsaripecioFrrrLe,hoeaschfsibonlazsniiltkpitenldezcsalmfslwoi.hfhwiotasmeoirauaotidoftuatternrssuhlf)ensaitAnnt.sbtesotrhdenhidlsutntuliirrteseetssPcfthü-.tirrzmoheceaeue000nkuitiuneexltaabicstpcnzmarSoshr,atn-e|||cmg,dsshgUHBuGmisaVceZnuedeLehusgeutabeitnetlirsaurinßrpiVzractttiestaahavfaugeetrftonoctcestitiao.rrrkdhoaliblndZBzussnteezaumnint.hacoatwegi,uaoofnhlimdstlfdngtAtttteaeheeeilfnptsr3liirsüelss-r-.iseer-f000Nredasaabrireitt.cu|||hWirneUHBwsarieeeLerSredntnießrVsirfgeiofetarrndBsAzitaceenhlmtistctceph3hren-lNuruasnrt.sguirnIasaueSufnegfsgreioeenrnnoAozmmenmiscmcehhennlnu.usnsg

I aufgenommen aufgenommen.

30 | AQ450435606290en-US0301 a.teAnltl,pporirafugoyththimhltiistbeeyirtnegtmsdroae.ofnrdvOtdeTienfaoldfhemfeinonaadprsgterhuepordepssape.pteeeslvwAirnegelitlrnln,lcr.tiuhogbZtahnieltsdiustyitstrhoieotems.nledos/nrdvRseleiuald(ercbeivolne.rttrhhoefdeoserieodsvniegtehlnniev.tepZrryeuvosefntp.tai/orntRs, ev. packaging for safe transportation). 7 Weitergabe sowie Vervielfältigung dieses Dokuments,
7 rstellen, dass DdVeiererWLwiearfrteeurnagntumndusMsittseiciluhnegrssteilnleens, Idnahsaslts dsiiendWvaerre-

DIN ISO -2768-mK-E

Baumustergeprüft Nein / No

Tyüpbeebries/x/aaubmNBpoivaentoeuianmti/ouNns0:ot.e65rgepr3ü60f

Gewicht / Weight: (kg) -

Gewic±h0t /.1We±ig0h.t2:

Dimensions in mm [inch] Allgemeintoleranzen / GeneralAtolllgeeramnecienstoleranz DIN ISO 2768-mK-E UnbemaßDteINRIaSdOien27/ 6U8n-dmimK

11731 11643

06.07.22 11731
13.05.22

V. Polizzi

C. Egeler

06.07.22

V. Polizzi

E. Bauknecht C. Egeler

Fig. 17 über / above 0.5 6 üb3e0r / a1b2ov0e 400

Cb. Eisg/eulepr to

6 30 12b0is / 4up00to 100

11460

11643

13.05.22 E. Bauknecht

17.02.22 E. Bauknecht J. Keuerleber

C. Egeler

±0.1 ±0.2 ±0.3 ±0.5 ±±00

11460 Datum / Date

Bearb. 1/ 7E.d0i2te.2d2GepErü.fBt /aAupknper.cMhtaßJ/U.DnKibmeeuemenrsaleioßbnteer RadiePnas/ sUunndgim/ CelnesUaironanbnecedmraaßdtiei: R- BaOdiCe

5 5 4 4 Änd.-Nr. / Mod-No. Datum / Date Bearb. / Edited Geprüft / Appr. Maß / Dimension

Passung / Cle

9 | Dimensions and connections

SV Suction line DV Discharge line

see technical data, chapter 8

Connection suction side, not lockable

A1 Connection suction side, lockable

Connection discharge side, not lockable

B1 Connection discharge side, lockable

D1 Connection oil return from oil separator

Connection oil pressure gauge

Oil drain

1/8" NPTF 7/16" UNF 1/8" NPTF 7/16" UNF 1/4" NPTF 1/8" NPTF M12x1.5

Connection hot gas temperature sensor

Connection Oil sump heater

Sight glass

1/8" NPTF 3/8" NPTF 1 1/8" - 18 UNEF

Connection thermal protection thermostat

Connection oil level regulator

Connection oil temperature sensor

1/8" NPTF

2 x 1 1/8" - 18 UNEF

1/8" NPTF

SI1 Decompression valve HP

M22x1.5

SI2 Decompression valve LP

M22x1.5

AQ450435606290en-US0301| 31

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:

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 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

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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

AQ450435606290en-US0301| 33

11 | UL-Certificate of Compliance
Dear customer, the Certificate of Compliance can be downloaded by the following QR-Code:
https://vap.bock.de/stationaryapplication/Data/ DocumentationFiles/COC CO2 trans.pdf
D US

34 | AQ450435606290en-US0301

D US

AQ450435606290en-US0301| 35

D US

36 | AQ450435606290en-US0301

References

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