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GHH RAND CF Series Installation Manual

Screw compressor with oil injection
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Installation Manual
Screw Compressor with Oil Injection
Series CF
(excluding encapsulated
screw compressors)
Installation Manual Series CF (excluding encapsulated screw compressors)
23042013 Rev. A / May 2007
1 of 60

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Summary of Contents for GHH RAND CF Series

  • Page 1 Installation Manual Screw Compressor with Oil Injection Series CF (excluding encapsulated screw compressors) Installation Manual Series CF (excluding encapsulated screw compressors) 23042013 Rev. A / May 2007 1 of 60...
  • Page 2 Content of this installation manual is property of In case of utilization of spare parts not specified GHH RAND. Reprint and reproduction are pro- in the GHH RAND spare parts list, GHH RAND hibited without previous written consent from will not accept responsibilities for consequential GHH RAND.

  • Page 3: Table Of Contents

    Table of contents 4.8.2 Suction air filter fineness ......20 4.8.3 Explanations to the filter fineness according to ISO 4572:......20 4.9 Fitting instructions ........21 4.9.1 Coupling...........21 4.9.2 Belt drive..........22 1 General ........4 5 Preparation prior to start 1.1 Intended purpose ..........4 operation........23 1.2 Type designation...........4 1.3 Marking ............4...

  • Page 4: General

    1.1 Intended purpose When inquiring about and ordering spare parts and accessories, please state the exact type des- GHH RAND manufacture and supply the Series ignation and the machine number of the com- CF compressor stages as built-in elements for pressor.

  • Page 5: Safety

    GHH RAND. is fitted. The operating manual must always be accessible to the personnel. 2.4 Safety conscious operation Not only should the general safety instructions under this main section „Safety“...

  • Page 6: Safety Instructions For The Operating Company/Operator

    2.6 Safety instructions for mainte- nance, inspection and mounting work Service and maintenance is only permitted to be carried out by a GHH RAND authorized service bureau The machine/system should only be worked on whilst shut down and isolated. Following the ma- chine/system shutdown procedure described in the operating manual is imperative.

  • Page 7: Description Of Product And Accessories

    3 Description of product and accessories 3.1 Main assemblies of the compressor Sectional drawing of a screw compressor as an example Main components: Rotors: Seals: Rotor casing Rotor bearing Shaft seal Gear casing Drive shaft bearing Gear case cover Bearing casing Cover 6 + 7 Rotor pairs (Mail + Fe-...

  • Page 8: Direct Drive

    3.2 Direct drive The compressor can be directly driven by a mo- tor, at the motors operating speed, via a coupling which is directly mounted on the male motor shaft. Installing and fastening with threaded bores on the underside of the compressor. A correct alignment of motor/coupling/compres- sor is absolutely necessary.

  • Page 9: Recommendation For Plant Construction

    They do not dispense from the liability to consider the actual operating conditions. Existing safety regulations (see also section 2 “Safety”) shall be observed. GHH RAND does not assume any liability or warranty for the represented circuits, descriptions and other information.
  • Page 10 List of equipment Thermostatic valve Screw compressor Oil stop valve Drive motor with coupling / belt Adjustable throttle valve Suction filter Oil temperature thermometer Suction valve Sight glass Adjustable throttle valve Adjustable throttle valve Contact manometer for compressor Non-return valve discharge pressure Oil level indicator –...

  • Page 11: Explanations To The Electromotor Drive Tubing Plan

    4.2 Explanations to the electromo- 4.2.2 Operation under load tor drive tubing plan When required control pressure has been reached, the suction valve [4] opens. The pressures stated are abso- NOTE Minimum pressure valve [17] opens only after lute pressures. a pressure of approx.

  • Page 12: Switch-Off

    stage is kept approximately constant depend- 4.2.4 Switch-off ing on operating condition and dew point. Connection F is used to return the oil col- Switch-off takes place intentionally upon ac- lected in fine separator [14] into compression tuation of the motor circuit breaker or by chamber of the compressor.

  • Page 13: Explanations To The Diesel Engine Drive Tubing Plan

    return valve [18] exceeds the pressure of the 4.3 Explanations to the diesel en- mains. gine drive tubing plan 4.3.3 No-load operation No-load operation is possible: The pressures stated are abso- NOTE lute pressures. 1. Automatically in case of mains pressure is higher than the upper switch-point of pres- sure controller [19].

  • Page 14: Switch-Off

    4.3.4 Switch-off 4.3.5 Oil system Utilizing the pressure difference, the oil collected Switch-off takes place intentionally upon ac- in the oil reservoir/coarse separator is used to tuation of the motor circuit breaker or by supply the compressor with oil. means of safety cut out in the event of: By means of adjustable throttle valve [31], the •...

  • Page 15: Recommendations For Plant Protection

    4.4 Recommendations for plant protection WARNING Maximum permissible discharge temperature: Drive motor has to be designed that no axial force can affect jackshaft of compressor. To 110 ° C. Temperature monitoring is prescri- bed. compensate magnetic forces and forces caused by heat expansion the motor bearing on the cou- Minimum permissible discharge pressure: pling side has to be designed as fix bearing.
  • Page 16 pressure under consideration of Safety Regula- WARNING tions mention according to chapter 2.4 Screw compressors and piston compressors Do not load any additional forces on the flanges should not be installed at the same air network of the airend. Heat expansion and vibrations are without the installation of an appropriate pressure to compensated by usage of appropriate devices.

  • Page 17: Dew Point Diagram

    4.5 Dew point diagram Installation Manual Series CF (without incapsulated screw compressors) 23042013 Rev. A / May 2007 17 of 60...

  • Page 18: Recommendations For Lubricants

    GHH RAND recommend stable and proven char- start-up of compressor unit. acteristic lubricants: Authorisation for other lubricants other than „PrimeCool“...

  • Page 19: Admixtures, Impurities

    *) The stated flow rates are valid for the usual 4.6.3 Admixtures, impurities viscosities of 32 – 68 cSt in the normal tempera- ture range between 40° C and 80° C Water Water within the lubricant can lead to pene- tration of lubricating film.

  • Page 20: Filter Fineness

    4.8 Filter fineness • 2. Example: β = 100 4.8.1 Oil filter fineness 1 / 100 = 1 % Mesh width max. 0.010 mm (10 µm) The retention degree is: 100 % - 1 % = 99 % For normal operating conditions, filters with a fineness according to DIN ISO 4572: 99 % of 6 µm particles are filtered out of β...

  • Page 21: Fitting Instructions

    The coupling has to be designed for every par- 4.9 Fitting instructions ticular and individual case according to the speci- fication of the calculated rotary oscillation (see also section 4.4). 4.9.1 Coupling Sufficient axial clearance has to be considered. Adjustment of coupling has to be ensured by The connection element between compressor means of dial indicators.

  • Page 22: Belt Drive

    4.9.2 Belt drive Pulleys should be used with a balancing grade of G 2.5 to DIN ISO 1940 respectively Q 2.5 to VDI 2060, balanced according to the “half-key con- vention” to DIN ISO 8821. R,dyn, ma Pulley has to be locked to avoid axial displace- ment.

  • Page 23: Preparation Prior To Start Operation

    5 Preparation prior to 6 Maintenance start operation Checking the operation conditions at regular in- tervals and servicing all elements of the com- The equipment shall be set up on level ground pressor system correctly and on time are the and as far as possible from sources of heat and prerequisites for trouble-free operation and a dust.

  • Page 24: Spare Parts

    7 Spare parts A long-lasting reliable operation of the compressor unit is ensured by regular renewal of wear- and tear parts. Please see the spare parts kits chart below (Standard-Kits are shaded). Konditionsblatt Ersatzteil-Kits Öleingespritzte Standardkompressoren Spare Part Kits for oilinjected standard airends Zeichnungs-Nr.
  • Page 25 Sales and Service Points Europe GHH RAND Schraubenkompressoren GmbH, Steinbrinkstraße 1, D-46145 Oberhausen Customer Support Phone + 49 (0) 2 08 6 99 40 66 Fax + 49 (0) 2 08 6 99 40 50 Asia Customer Support Phone + 86 21 54 52 98 93...

  • Page 26: Annex I Technical Data

    8 Annex I Technical data Installation drawing and 3D-files Note separately available. Current ver- sions available upon request. CF75G Technical data (Page 1 of 3) Dimensions: 510 mm x 319 mm x 225 mm (LxWxH) Weight: 70 kg Permissible areas of operation: Speed of male rotor 1787 1/min 8935 1/min...
  • Page 27 CF75G Technical data (Page 2 of 3) Chart Product Code: (Standard Gear Ratio shaded) Product Gear Ratio Code 3,2667 3,1290 3,0000 2,8788 2,7647 2,6571 2,5556 2,4595 2,3684 2,2821 2,2000 2,1220 2,0476 1,9767 1,9091 1,8444 1,7826 1,7234 1,6667 1,6122 1,5600 1,5098 1,4615 1,4151 1,3704...
  • Page 28 CF75G Technical data (Page 3 of 3) Performance Predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 °C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 16,0 Disch.
  • Page 29 CF75D6/D8 Technical data (Page 1 of 2) Dimensions: 416 mm x 251 mm x 210 mm (LxWxH) Weight: 58 kg Permissible areas of operation: Speed of male rotor 1450 1/min 8935 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 16 bar(abs) Discharge temperature...
  • Page 30 CF75D6/D8 Technical data (Page 2 of 2) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 °C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 16,0 Disch.
  • Page 31 CF90G5 Technical data (Page 1 of 3) Dimensions: 616 mm x 373 mm x approx. 320 mm (LxWxH) Weight: 120 kg Permissible areas of operation: Speed of male rotor 1489 1/min 7446 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 16 bar(abs) Discharge temperature...
  • Page 32 CF90G5 Technical data (Page 2 of 3) Chart Product Code: (Standard Gear Ratio shaded) Product Gear Ratio Code 3,0000 2,8519 2,7143 2,5862 2,4667 2,3548 2,2500 2,1515 2,0588 1,9714 1,8889 1,8108 1,7368 1,6667 1,6000 1,5366 1,4762 1,4186 1,3636 1,3111 1,2609 1,2128 1,1667 Installation Manual Series CF (excluding encapsulated screw compressors) 23042013 Rev.
  • Page 33 CF90G5 Technical data (Page 3 of 3) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 16,0 Disch.
  • Page 34 CF90G8 Technical data (Page 1 of 3) Dimensions: 752 mm x 373 mm x approx. 320 mm (LxWxH) Weight: 123 kg Permissible areas of operation: Speed of male rotor 1489 1/min 7446 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 16 bar(abs) Discharge temperature...
  • Page 35 CF90G8 Technical data (Page 2 of 3) Chart Product Code: (Standard Gear Ratio shaded) Product Gear Ratio Code 3,0000 2,5862 2,3548 Installation Manual Series CF (excluding encapsulated screw compressors) 23042013 Rev. A / May 2007 35 of 60...
  • Page 36 CF90G8 Technical data (Page 3 of 3) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 °C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 16,0 Disch.
  • Page 37 CF90D3/D4 Technical data (Page 1 of 2) Dimensions: 480 mm x 315 mm x 255 mm (LxWxH) Weight: 88 kg Permissible areas of operation: Speed of male rotor 1450 1/min 7446 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 16 bar(abs) Discharge temperature...
  • Page 38 CF90D3/D4 Technical data (Page 2 of 2) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 16,0 Disch.
  • Page 39 CF90LG3 Technical data (Page 1 of 3) Dimensions: 667 mm x 373 mm x approx. 320 mm (LxWxH) Weight: 129 kg Permissible areas of operation: Speed of male rotor 1489 1/min 7446 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 11,5 bar(abs) Discharge temperature...
  • Page 40 CF90LG3 Technical data (Page 2 of 3) Chart Product Code: (Standard Gear Ratio shaded) Produkt Gear Ratio Code 3,0000 2,8519 2,7143 2,5862 2,4667 2,3548 2,2500 2,1515 2,0588 1,9714 1,8889 1,8108 1,7368 1,6667 1,6000 1,5366 1,4762 1,4186 1,3636 1,3111 1,2609 1,2128 1,1667 Installation Manual Series CF (excluding encapsulated screw compressors) 23042013 Rev.
  • Page 41 CF90LG3 Technical data (Page 3 of 3) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 Disch.
  • Page 42 CF90LG5 Technical data (Page 1 of 3) Dimensions: 803 mm x 373 mm x approx 320 mm (LxWxH) Weight: 132 kg Permissible areas of operation: Speed of male rotor 1489 1/min 7446 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 11,5 bar(abs) Discharge temperature...
  • Page 43 CF90LG5 Technical data (Page 2 of 3) Chart Product Code: (Standard Gear Ratio shaded) Product Gear Ratio Code 3,0000 2,5862 2,3548 Installation Manual Series CF (excluding encapsulated screw compressors) 23042013 Rev. A / May 2007 43 of 60...
  • Page 44 CF90LG5 Technical data (Page 3 of 3) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 Disch.
  • Page 45 CF128G Technical data (Page 1 of 3) Dimensions: 801 mm x 433 mm x 370 mm (LxWxH) Weight: 280 kg Permissible areas of operation: Speed of male rotor 1047 1/min 5235 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 16 bar(abs) Discharge temperature...
  • Page 46 CF128G Technical data (Page 2 of 3) Chart Product Code: (Standard Gear Ratio shaded) Product Gear Ratio Code 2,3824 2,2857 2,1944 2,1081 2,0263 1,9487 1,8750 1,8049 1,7381 1,6744 1,6136 1,5556 1,5000 1,4468 1,3958 1,3469 1,3000 1,2549 1,2115 1,1698 1,1296 1,0909 1,0536 1,0175 0,9828...
  • Page 47 CF128G Technical data (Page 1 of 3) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 16,0 Disch.
  • Page 48 CF128R Technical data (Page 1 of 2) Dimensions: 722 mm x 433 mm x 370 mm (LxWxH) Weight: 265 kg Permissible areas of operation: Speed of male rotor 1047 1/min 5235 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 16 bar(abs) Discharge temperature...
  • Page 49 CF128R Technische Daten (Page 2 of 2) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 16,0 Disch.
  • Page 50 CF128LG Technical data (Page 1 of 3) Dimensions: 909 mm x 433 mm x 370 mm (LxWxH) Weight: 330 kg Permissible areas of operation: Speed of male rotor 1047 1/min 5235 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 11,5 bar(abs) Discharge temperature...
  • Page 51 CF128LG Technical data (Page 2 of 3) Chart Product Code: (Standard Gear Ratio shaded) Product Gear Ratio Code 2,3824 2,2857 2,1944 2,1081 2,0263 1,9487 1,8750 1,8049 1,7381 1,6744 1,6136 1,5556 1,5000 1,4468 1,3958 1,3469 1,3000 1,2549 1,2115 1,1698 1,1296 1,0909 1,0536 1,0175 0,9828...
  • Page 52 CF128LG Technical data (Page 3 of 3) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 Disch.
  • Page 53 CF180G2 Technical data (Page 1 of 3) Dimensions: 1130 mm x 626 mm x 535 mm (LxWxH) Weight: 780 kg Permissible areas of operation: Speed of male rotor 745 1/min 3723 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 16 bar(abs) Discharge temperature...
  • Page 54 CF180G2 Technical data (Page 2 of 3) Chart Product Code: (Standard Gear Ratio shaded) Produdt Gear Ratio Code 2,2727 2,1765 2,0857 2,0000 1,9189 1,8421 1,7692 1,7000 1,6341 1,5714 1,5116 1,4545 1,4000 1,3478 1,2979 1,2500 1,2041 1,1600 1,1176 1,0769 1,0377 1,0000 0,9636 0,9286 0,8947...
  • Page 55 CF180G2 Technical data (Page 3 of 3) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 16,0 Disch.
  • Page 56 CF180R Technical data (Page 1 of 2) Dimensions: 987 mm x 626 mm x 535 mm (LxWxH) Weight: 725 kg Permissible areas of operation: Speed of male rotor 725 1/min 3723 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 16 bar(abs) Discharge temperature...
  • Page 57 CF180R Technical data (Page 2 of 2) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 16,0 Disch.
  • Page 58 CF246G Technische Daten (Blatt 1 von 3) Dimensions: 1519 mm x 791 mm x 830 mm (LxWxH) Weight: 1600 kg Permissible areas of operation: Speed of male rotor 575 1/min 2875 1/min atmospheric Suction pressure 0,62 bar(abs) pressure Discharge pressure 6 bar(abs) * 14,5 bar(abs) Discharge temperature...
  • Page 59 CF246G Technical data (Page 2 of 3) Chart Product Code: (Standard Gear Ratio shaded) Product- Gear Ratio Code 1,9211 1,8462 1,7750 1,7073 1,6429 1,5814 1,5227 1,4667 1,4130 1,3617 1,3125 1,2653 1,2200 1,1765 1,1346 1,0943 1,0556 1,0182 0,9821 0,9474 0,9138 0,8814 0,8500 0,8197 0,7903...
  • Page 60 CF246G Technical data (Page 3 of 3) Performance predictions: Medium: Air, rel. humidity 60 %; suction press. (abs.): 1 bar; suction temp.: 20 ° C; disch. temp.: 80 ° C; oil quality: ISO VG46 Male Rotor Tip Speed in m/s 11,5 14,5 Disch.

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