BOCK DHG6/1080-4 Assembly Instructions Manual Download Page 5

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 Safety

1.4  Intended use

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.

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, 2014/68/EU Pressure 

Equipment Directive).

Commissioning is permissible only if the compressor has been installed in accordance with these as-
sembly instructions and the entire system into which it is integrated has been inspected and approved 
in accordance with legal regulations.
The compressors are intended for use in refrigeration systems in compliance with the limits of 
application.

Only the refrigerant specified in these instructions may be used.

Any other use of the compressor is prohibited! 

Summary of Contents for DHG6/1080-4

Page 1: ...e original instructions colour the world of tomorrow BOCK HG6 1080 4 HG6 1080 4 S HG6 1240 4 HG6 1240 4 S HG6 1410 4 HG6 1410 4 S HGX6 1080 4 HGX6 1080 4 S HGX6 1240 4 HGX6 1240 4 S HGX6 1410 4 HGX6 1...

Page 2: ...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...

Page 3: ...5 2 Standard motor design for direct or partial winding start 5 3 Basic circuit diagram for part winding start with standard motor 5 4 Special motor design for direct or star delta start 5 5 Basic ci...

Page 4: ...ge INFO Important information or tips on simplifying work WARNING Inadequately qualified personnel poses the risk of accidents the consequence being serious or fatal injury Work on compressors is ther...

Page 5: ...ot 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...

Page 6: ...or section Fig 2 2 Product description Semi hermetic four cylinder reciprocating compressor with suction gas cooled drive motor Flange mounted drive motor on the compressor case Preferred application...

Page 7: ...chine number 7 Nominal rotation speed 3 maximum operating current 8 Displacement 4 Starting current rotor blocked 9 Voltage circuit frequency Y Part winding 1 10 Nominal rotation speed YY Part winding...

Page 8: ...regulator is activated the gas velocity in the system can not under certain circumstances ensure that suffi cient oil is transported back to the compressor For operation with frequency converter The...

Page 9: ...R22 Fig 5 Fig 6 Fig 8 Unlimited application range Supplementary cooling or reduced suction gas temperature Supplementary cooling and reduced suction gas temperature Motor version S more powerful motor...

Page 10: ...lly Use lifting gear Storage at 30 C 70 C maximum permissible relative humidity 10 95 no condensation Do not store in a corrosive dusty vaporous atmosphere or in a com bustible environment Fig 10 Fig...

Page 11: ...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 a...

Page 12: ...e completely opened service connection closed The connection which cannot be shut off is intended for safety devices Fig 19 Opening the service connection Spindle Turn 1 turn clockwise Service connect...

Page 13: ...e 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...

Page 14: ...e safety monitor F4 Safety chain high low pressure monitoring F5 Oil differential pressure monitor B1 Release switch thermostat nderung 0 Datum Name Datum Bearb Gepr Norm 1 20 Feb 2009 Kelich 09 M r 2...

Page 15: ...r part winding 1 K2 Mains contactor part winding 2 K1T Delay relay max 1s S1 Control voltage switch E1 Oil sump heater PW MP10 5 6 7 BOCK COMPRESSORS 8 9 Bl 1 Bl 1 F5 K1 12 T2 13 N P l 14 L 15 M 16 S...

Page 16: ...or direct start YY at the factory For part winding start Y YY the bridges must be removed and the motor feed line connected according to the circuit diagram ATTENTION Failure to do this results in opp...

Page 17: ...1 W1 U1 V2 U2 W2 L3 L2 L1 400 V Y nur Direktstart V1 W1 U1 V2 U2 W2 L1 L2 L3 5 4 Sondermotor Ausf hrung f r Direkt oder Stern Dreieck Anlauf F r den Stern Dreieck Anlauf ist eine mechanische Anlaufent...

Page 18: ...1 L1 N N 43 43 11 12 14 L S M X2 1 2 3 4 5 6 7 F1 1 F1 2 8 R2 4A F2 S1 9 10 MP10 11 5 5 Basic circuit diagram for star delta start with special motor Fig 21 R1 Cold conductor PTC sensor motor winding...

Page 19: ...16 S K1 K1 K3 P F3 K4T K3 K2 17 K4T K2 K3 18 19 K4T P F4 20 K5T AL 21 22 K5T P B1 23 24 K1 25 E1 26 L1 1 L2 1 L3 1 L1 2 N PE M1 Compressor motor K1 Mains contactor K2 contactor K3 Y contactor K4T Dela...

Page 20: ...e trigger unit MP10 Temperature monitoring connections Motor winding Terminals 1 2 Thermal protection thermostat Terminals 3 4 Restart prevention Terminals 5 6 Fig 22 Terminal board INFO Connect the t...

Page 21: ...connection 1 or 2 Release the hot gas temperature sensor if installed 3 or 4 2 Restore the power supply L1 or S1 ON Function check of motor temperature sensor operational ON Function check of hot gas...

Page 22: ...n the compressor is started the refrigerant contained in the oil evaporates due to the decline in pressure This can result in oil foaming and oil exodus which can result in oil hammer in certain circu...

Page 23: ...or 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 termina...

Page 24: ...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...

Page 25: ...as well as the OM3 TraxOil oil level regulation system from Alco can be connected directly without adapters see Fig 19 A sight glass on the oil level regulator is not required Mechanical oil level reg...

Page 26: ...e filled as standard in the factory is marked on the name plate This oil type should be used as a preference Alternatives are stated in the extract from our lubricants table below Refrigerants Bock st...

Page 27: ...YY 3 50 Hz PW 440 480 V Y YY 3 60 Hz PW PW Part Winding Winding ratio 66 33 L M H 5 Tolerance 10 relative to the mean value of the voltage range Other voltages and types of current on request The spec...

Page 28: ...ction suction side not lockable inch A1 Anschluss Saugseite absperrbar Zoll 7 16 UNF Connection suction side lockable inch B Anschluss Druckseite nicht absperrbar Zoll 1 8 NPTF Connection discharge si...

Page 29: ...sure switch OIL 7 16 UNF D Connection oil pressure switch LP 7 16 UNF D1 Connection oil return from oil separator 1 4 NPTF E Connection oil pressure gauge 7 16 UNF F Oil drain M22 x 1 5 H Oil charge p...

Page 30: ...ons 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 i...

Page 31: ...questions about installation operation and accessories please contact our technical service or specialist wholesaler and or our representative The Bock service team can be contacted by phone 49 0 702...

Page 32: ...Bock GmbH Benzstra e 7 72636 Frickenhausen Germany Phone 49 7022 9454 0 Fax 49 7022 9454 137 www bock de Bock GmbH All rights reserved Subject to modifications Printed in Germany BOCK...

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