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© Danfoss | Climate Solutions | 2023.06

AQ452531257528en-000201 | 5

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 Safety

These assembly instructions describe the standard version of the compressors named in the ti-

tle manufactured by Bock. Bock refrigerating compressors are intended for installing in a 

 

machine (within the EU according to the EU Directives 2006/42/EC Machinery Directive and  

2014/68/EU Pressure Equipment Directive).

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 use with CO

2

 in transcritical 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!

1.4  Intended use

1.3 General safety instructions

WARNING

Risk of accident.

Refrigerating compressors are pressurised machines and  therefore 

require particular 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 pressure side or below 0 °C on the suction side   

 

  can be reached.

-  Avoid  the  contact  with  refrigerant  under  any  circumstances.

 

  The contact with refrigerant can lead to severe burns and skin 

 

   irritations.
Danger of suffocation.
CO

2

 is a nonflammable, acidic, colourless and odourless gas 

and  

heavier than air.
Never release significant volumes of CO

2

 or the entire contents of 

the system into closed rooms!

Safety installations are designed or adjusted in accordance with EN 

378-2 or appropriate safety standards.
• 

We expressly point out that all information in this 

 

  assembly instruction 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.

WARNING

The  compressor  may  not  be  used  in  potentially  explosive 

 

environments!

Summary of Contents for BOCK HRX CO2 T H

Page 1: ...AQ452531257528en 000201 BOCK HRX CO2 T H transcritical Operating guide HRX40 2 CO2 T H HRX60 2 CO2 T H Translation of the original instructions...

Page 2: ...fore using the compressor This will avoid misunder standings and prevent damage Improper assembly and use of the compressor can result in serious or fatal injury Observe the safety instructions contai...

Page 3: ...ination 4 4 Connecting the pipelines flange connection 4 5 Pipes 4 6 Laying suction and pressure lines 5 Electrical connection 15 5 1 Information for contactor and motor contactor selection 5 2 Connec...

Page 4: ...s 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 c...

Page 5: ...ompressors are pressurised machines and therefore require particular caution and care in handling The maximum permissible overpressure must not be exceeded even for testing purposes Risk of burns Depe...

Page 6: ...0 CO2 T H Four cylinder radial piston compressor with suction gas cooled motor HRX60 CO2 T H Six cylinder radial piston compressor with suction gas cooled motor Suction and discharge connections by me...

Page 7: ...xample 160 0A 1 Type designation 2 Machine number 3 Maximum operating current mains operation 4 Starting current rotor blocked 5 ND LP max permissible operating pressure g Low pressure side HD HP max...

Page 8: ...y in mains operation 8x h 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 co...

Page 9: ...or heating option it must be used If this option is not available but the frequency converter has the option to define vertices of the U f characteri stic these must be set as follows Select the first...

Page 10: ...ge pressure bar Unlimited application range at a drive frequency of 12 5 75 Hz Max permissible operating pressure LP HP 1 100 150 bar 1 LP Low pressure HP High pressure Unlimited application range at...

Page 11: ...Suction pressure bar pHD Discharge pressure bar Unlimited application range at a drive frequency of 12 5 65 Hz Max permissible operating pressure LP HP 1 100 150 bar 1 LP Low pressure HP High pressure...

Page 12: ...ient load bearing capacity Single compressor preferably on vibration damper Compound connection basically rigid Provide adequate clearance for maintenance work Do not use in a corrosive dusty damp atm...

Page 13: ...to be installed in the system within the suction line ahead of the compressor suction port ATTENTION Risk of damage Overheating can lead to compressor damage Therefore remove the pipe socket from the...

Page 14: ...t of the suction and pressure lines directly after the compressor is integral to the smooth running and vibration behaviour of the system 4 5 Pipes Pipes and system components must be clean and dry in...

Page 15: ...the same DANGER Risk of electric shock High voltage Only carry out work when the electrical system is disconnected from the power supply All protection equipment switching and monitoring devices must...

Page 16: ...2 High pressure safety monitor Safety chain high low pressure monitoring QA1 Main switch QA2 Compressor contactor EC1 Compressor motor SF1 Control voltage switch 5 3 Circuit diagram for direct start 4...

Page 17: ...D GB F E Danfoss Climate Solutions 2023 06 AQ452531257528en 000201 17 5 6 7 8 9 FC1 FC2 SF1 6 7 PE 9 10 11 PE QA2 BP1 P PE 8 BP2 P 13 14 BT4 L1 L2 L3 N PE...

Page 18: ...ing e g using a cold storage medium a receiver tank a secondary refrigerant system or pressure relief devices DANGER Risk of bursting The compressor must only be pressurised using nitrogen N2 Never pr...

Page 19: ...during and after the filling process the shut off point of the low pressure switch should be set to a value of at least 5 2 bar A refrigerant supplement which may become necessary after start up can b...

Page 20: ...oiding slugging 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...

Page 21: ...xiliary devices 7 Maintenance For operation with CO2 the oil type BOCKlub E85 is necessary 7 4 Lubricants oil 7 5 Decommissioning It is essential to ensure good ventilation to avoid danger of suffocat...

Page 22: ...nd safety devices Fuse Consumption category AC3 8 Technical data 1 4 3 2 All specifications are based on the average of the voltage range Flange connection for steel tubes Type No of cylinders Displac...

Page 23: ...fft Blatt 2 0d Betrifft Blatt 2 0e Betrifft Blatt 2 0f Umstellung HRX40 auf 90 Teilung 0f Aufnahme HRX60 Teile Nr 16278 in Zeichnungen 0f Gr e Kabeldurchf hrungen aufgenommen 10940 11090 11032 11257 1...

Page 24: ...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...

Page 25: ...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...

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Page 27: ...D GB F E Danfoss Climate Solutions 2023 06 AQ452531257528en 000201 27...

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