Screw Compressor Packages GEA Grasso SP1, SP2, SPduo and GEA Grasso M. Product Information (Translation of the original text) P_201011_1

Transcription

1 GEA Grasso SP1, SP2, SPduo and GEA Grasso M Product Information (Translation of the original text) P_201011_1

2 COPYRIGHT All Rights reserved. No part of this publication may be copied or published by means of printing, photocopying, microfilm or otherwise without prior written consent of GEA Refrigeration Germany GmbH herein after called manufacturer. This restriction also applies to the corresponding drawings and diagrams. illustrations do not exactly match the current development status. The technical data and dimensions are subject to change. No claims can be made on the basis of them. LEGAL NOTICE This product information is a part of the documentation for the Grasso scope of delivery and serves as product presentation and customer advisory service. It contains important information and technical data regarding the product. The product information makes the technical, product related and commercial information available to the customer in detail before the sale of the product. This product information serves as a support and technical advisory service for our partners and customers as well as for the marketing team. Apart from serving as the medium for transfer of product knowhow, it also forms the basis for product demonstrations, the organisation and conduction of technical seminars as well as the technical support at trade fairs. This product information should be supplemented with the information about the industrial safety and health related regulations at the site of installation of the product. The regulations vary form place to place as a result of the statutory regulations applicable at the site of installation of the product and are therefore have not been considered in this product information. In addition to this product information and the accident prevention regulations applicable for the respective country and area where the product is used, the accepted technical regulations for safe and professional work must also be observed. This product information has been written in good faith. However, GEA Refrigeration Germany GmbH cannot be held responsible for any errors that this document may contain or for their consequences. GEA Refrigeration Germany GmbH reserves the right to make technical changes during the course of further development of the equipment covered by this product information. Illustrations and drawings in this product information are simplified representations. As a result of the improvements and changes, it is possible that the 2 GEA Refrigeration Germany GmbH P_201011_1 Generated

3 TABLE OF CONTENTS 1 INTRODUCTION Product code of screw compressor packages Scope of supply Service fluids 8 2 SERIES OVERVIEW Overview: GEA Grasso SP1 Small, Medium and GEA Grasso M Overview: GEA Grasso SP1 Large Series 12 3 OPERATION LIMITS 13 4 TECHNICAL SPECIFICATIONS GEA Grasso SP1 Small SC Types C, D, E, G GEA Grasso M Series SC Types H, L, M, N GEA Grasso SP1 Medium SC Types M, N (52 bar-variant) GEA Grasso SP1 Large SC Types P, R, S, T, V, W, Y (with horizontally arranged oil separator) GEA Grasso SP1 Large SC Types Z, XA (with horizontally arranged oil separator) GEA Grasso SP1 Large SC Types P, R, S, T GEA Grasso SP1 Large SC Types V, W, Y GEA Grasso SP1 Large SC Types Z, XA GEA Grasso SP1 Large SC Types XB, XC, XD, XE, XF GEA Grasso SP2 SC Types (LP) H, L, M, N, P, R GEA Grasso SP2 SC Types (LP) S, T, V, W, Y, Z GEA Grasso SPduo Small SC Types C, D, E, G GEA Grasso SPduo Medium SC Types H, L, M, N GEA Grasso SPduo Large SC Types P, R, S, T GEA Grasso SPduo Large SC Types V, W, Y 33 5 OPTION FREQUENCY INVERTER 34 6 GEA OMNI CONTROL PANEL Product Highlights Input and Output Signals 39 7 DESCRIPTION OF DESIGN AND FUNCTION General functional description Refrigerant circuit Oil circuit Oil separation Oil separation (installed vertically) Oil separation (installed horizontally) Oil heater Oil cooling Oil filter Oil pump Oil pump (integrated) Oil pump (external) Oil pumpe (without) Oil injection Oil circuit Capacity control Vi adjustment (optionally) Information about noise emissions 47 8 ECONOMIZER Economizer variants for single-stage screw compressor packages Type A Economizer port pipe Type B Economizer for two-stage expansion (Open flash) with level control Type C Economizer for single-stage expansion (Closed flash) with shell and tube heat exchanger Type D Economizer for single-stage expansion (Closed flash) with plate heat exchanger Type E Economizer for two-stage expansion (Open flash) with HP floater Economizer variants for DuoPack screw compressor packages Type A-Duo Economizer port pipe Type B-Duo Economizer for two-stage expansion (Open flash) with level control 57 GEA Refrigeration Germany GmbH P_201011_1 Generated

4 8.2.3 Type C-Duo Economizer for single-stage expansion (Closed flash) with shell and tube heat exchanger 58 9 INQUIRY SHEET MANUFACTURER INFORMATION 61 4 GEA Refrigeration Germany GmbH P_201011_1 Generated

5 Introduction 1 INTRODUCTION Complete screw compressor packages are available to ensure all necessary operating functions of the screw compressors. Grasso screw compressor packages are delivered as a single-stage, two-stage or DuoPack packages depending on the required refrigerating capacity, the refrigerant, evaporating and condensing temperatures. 1.1 Product code of screw compressor packages X Y Model size screw compressor package The ND screw compressor will be provided for the screw compressor packages in the Grasso SP2 series (two-stage). Versions of the screw compressor package 9 Screw compressor version variations A (X1) Oil cooling Screw compressor size HP side Only for screw compressor packages in the Grasso SP2 series (two-stage). X / (X1) Screw compressor package size Code letter Theoretical volume flow Code letter Theoretical volume flow at 2940 min -1 in m³/h at 2940 min -1 in m³/h C 231 T 1460 D 265 V 1740 GEA Refrigeration Germany GmbH P_201011_1 Generated

6 Introduction Code letter Theoretical volume flow Code letter Theoretical volume flow at 2940 min -1 in m³/h at 2940 min -1 in m³/h E 321 W 1940 G 372 Y 2390 H 471 Z 2748 L 544 XA 3250 M 690* / 710 XB 4150 N 860* / 873 XC 4900 P 805 XD 5800 R 1040 XE 7170 S 1290 XF 8560 *52 bar screw compressors Y Screw compressor package version Design type Screw compressor package Refrigerant NH 3 Refrigerant R22 HFC Refrigerant Refrigerant R290 and R600a CO 2 and Special media Horizontal oil separator installed below A H R F O Oil separator installed vertically B K S G P Oil separator horizontally in series C L T Grasso SPduo/ mechanical suspension D M V Y W Grasso SP2 (two-phase) E N U 9 Screw compressor versions 1 Standard refrigerating compressor Vi = 1.8; 2.0; 2.2; 2.6; Standard refrigerating compressor Vi = Standard refrigerating compressor Vi = Standard refrigerating compressor Vi = Standard refrigerating compressor Vi = variable 6 GEA Refrigeration Germany GmbH P_201011_1 Generated

7 Introduction 6 Booster Vi = fixed 7 Heat pump compressor Vi = fixed or variable Speed regulated Vi = variable A Oil cooling Code letter A B C D E F Oil cooling Water-cooled oil cooler Refrigerant cooled oil cooler Refrigerant injection Water and refrigerant cooled oil cooler Water or refrigerant cooled oil cooler and refrigerant injection Without oil cooler Examples of designation XA B - 6 A Singe stage screw compressor package Grasso SP1 with screw compressor 3250 m³/h (XA), refrigerant NH 3 and vertically installed oil separator (B), booster with fixed internal volume ratio (6)with oil fine separation and water-cooled oil cooler (A) T A - 2 A Singe stage screw compressor package Grasso SP1 or SSP1 with screw compressor 1460 m³/h (T), refrigerant NH 3 and horizontally installed oil separator (A)fixed internal volume ratio Vi = 3.6 (2)with oil fine separation and water-cooled oil cooler (A) LD - 2 A W E - 6 A (L) Screw compressor package Grasso SPduo with 2 of screw compressors 544 m³/h (L), refrigerant NH 3 and DuoPack version or multiple configuration(d)fixed internal volume ratio Vi = 3.6 (2)with oil fine separation and water-cooled oil cooler (A) Two-stage screw compressor package with LP screw compressor 1940 m³/h (W), refrigerant NH 3 two-stage package (E), LP-compressor as booster (6), with oil fine separation and water-cooled oil cooler (A), HP-compressor 544 m³/h (L) GEA Refrigeration Germany GmbH P_201011_1 Generated

8 Introduction 1.2 Scope of supply The screw compressor packages of the SP1, SP2 and SPduo series consist of the following components: Screw compressor, Electric motor with coupling Oil supply system with oil separator, Oil cooler, Oil filter and oil pump, Suction filter Check valves on the suction and discharge sides, Equipment for capacity control, Monitoring and safety devices, Compressor control system. All components are fully mounted. The compressor control system is wired. The oil separators are installed horizontally or vertically. The horizontally arranged oil separators are suspended in a separate frame. A fine separation stage is provided for the oil separators. The oil cooling is effected using water. Optionally solutions for heat recovery, refrigerant cooled oil cooler or a refrigerant injection system are available. By default, a rigid installation on the foundation is intended. An installation insulated against structure-borne sound is available optionally. All connections are closed tight. Painting The painting is done with 2 component EP paint RAL 5014 with a coating thickness of 120 µm. Other colours are optional or can be delivered on request. Approval After acceptance, the screw compressor packages get a CE label in accordance with the Pressure Equipment Directive 97/23/EC. Documentation User documentation is delivered with each screw compressor package. The user documentation contains: Drawings and part lists, Safety Instructions, Operating manual (with the description of the refrigerant and oil circuits, the instructions for installation, startup and maintenance), Documentation of the main components (electrical motor, control), Maintenance schedule Acceptance certificate for components requiring acceptance. 1.3 Service fluids Hint! The screw compressor packages are delivered without refrigerant and refrigerating machine oil. They are filled with dry nitrogen (0.2 bar overpressure). 8 GEA Refrigeration Germany GmbH P_201011_1 Generated

9 Introduction Refrigerant The following refrigerants are provided: R717 R134a R404A R507 R410a R744 R22 1 R290 1 R600a 1 GEA Refrigeration Germany GmbH can provide assistance in the selection of a suitable refrigeration machine oil on request. Refrigeration machine oils The following oil grades are provided: Mineral oil Synthetic oil based on alkyl benzol Synthetic oil based on poly-alpha-olefin Synthetic oil based on polyolester 1 on request GEA Refrigeration Germany GmbH P_201011_1 Generated

10 Series overview 2 SERIES OVERVIEW 2.1 Overview: GEA Grasso SP1 Small, Medium and GEA Grasso M fig.1: Types of GEA Grasso SP1 Small, Medium and GEA Grasso M y Volume flow in m³ at /min x Compressor types 1 Oil separator (installed horizontally) 2 Oil separator (installed vertically) with 52 bar 10 GEA Refrigeration Germany GmbH P_201011_1 Generated

11 Series overview 2.2 Overview: GEA Grasso SP1 Large fig.2: y x Types of GEA Grasso SP1 Large Volume flow in m³ at /min Compressor types GEA Refrigeration Germany GmbH P_201011_1 Generated

12 Series overview 2.3 Series GEA Grasso SP1 - single stage screw compressor packages The whole supply range of single stage screw compressor packages GEA Grasso SP1 comprises 22 types subdivided into the 3 series. Small series: The screw compressors C, D, E and G of the SH series ensure a theoretical swept volume ranging from 231 to 372 m 3 /h. Medium series: The compact screw compressors M and N of the MC series ensure a theoretical swept volume ranging from 690 to 860 m 3 /h. Large series: The high performance screw compressors P, R, S, T, V, W, Y, Z, XA, XB, XC, XD, XE and XF of the LT series ensure a theoretical swept volume ranging from 805 bis 8560 m 3 /h. GEA Grasso M - single stage screw compressor packages The range of single stage screw compressor packages GEA Grasso M comprises 4 types. The compact screw compressors H, L, M and N of the M series ensure a theoretical swept volume ranging from 471 to 873 m 3 /h. GEA Grasso SP2 - twostage screw compressor packages Twostage screw compressor packages are equipped with a low - and a high-pressure compressor. Both compressors are mounted on a common base frame. There is a common oil circuit with a horizontal oil separator. The particularly compact and simple design of single stage screw compressor packages is effectively connected to the energetically favorable two stage operation. The whole supply range of two stage screw compressor packages GEA Grasso SP2 comprises 16 types subdivided into the 4 groups. GEA Grasso SPduo - DuoPack screw compressor packages GEA Grasso SPduo serve an energy-optimized part load operation. The power requirement is provided by two identical compressors. This is a low-cost and space-saving alternative for two screw compressor packages. 12 GEA Refrigeration Germany GmbH P_201011_1 Generated

13 3 Operation limits OPERATION LIMITS The screw compressor packages can be operated under the specified operating conditions within the given operation limits. The listed limits of the packages ensure the trouble-free and reliable operation of the equipment for a long period of time. Values are valid for the application as a refrigerant package. The manufacturer reserves the right to restrictions or extensions of the operation limits for specific applications. Special constructive designs are possible. Hint! For specific operations the selection and evaluation will takes place in the manufacturer's compressor selection program "GUD". Warning! A "zero flow" of the package can cause damage to the compressor. To avoid a damage, the minimum control slide position must be considered during ongoing operation. This is secured by the control unit of the package. Permissible minimum and maximum values for packages in the refrigerating operation maximum permitted pressure p Pressure ratio (p / p0) π < 52 bar (g.p.) > 1.5 Pressure difference (p - p0) Δp > 0.8 bar Suction temperature (compressor inlet) t0h > -60 C Discharge temperature (compressor outlet) te < 100 C Oil temperature toil > 30 C Oil temperature toil < 65 C Discharge temperature - condensation temperature Δt > 10 K Ambient temperature tu > 5 C Ambient temperature tu < 45 C Ambient humidity < 95 % GEA Refrigeration Germany GmbH P_201011_1 Generated

14 Operation limits Driving power and speed performance GEA Grasso SP1, SP2 and SPduo series Screw compressor Type C, D, E, G H, L, M, N P, R, S, T max. Driving power at 2950 min min kw 180 kw 300 kw 360 kw 530 kw 640 kw max. nominal torque 500 Nm 960 Nm 1700 Nm max. permissible speed limits min. permissible speed limits 3600 min min min min min min -1 Screw compressor Type V, W, Y, Z, XA XB, XC, XD XE, XF max. Driving power at at 2950 min -1 at 3550 min kw 1500 kw 1800 kw 2160 kw 3000 kw 3600 kw max. nominal torque 4000 Nm 5150 Nm 9500 Nm max. permissible speed limits min. permissible speed limits 3600 min min min min min min -1 The electric drive motors can be operated directly from the mains as well as via a frequency inverter. For screw compressor packages with compressors types C - N an external oil pump must be provided, in case the pressure difference between suction and discharge side does not ensure a sufficient oil supply. In general, the pressure difference must be higher than 4 bar. A variable Vi is not available for Booster applications. The refrigerant injection as an oil cooling option is approved for the refrigerant R717 only. For all other oil cooling options, the oil temperature must be at least 5 K below the discharge temperature (10 K for freons). Note the oil recommendation by the manufacturer when selecting the oil. The oil viscosity for safe compressor operation must be between 7 und 70 cst. The solubility behavior of the oils must be observed. Should the given limits not be adhered to in individual cases, then the manufacturer needs to be contacted. 14 GEA Refrigeration Germany GmbH P_201011_1 Generated

15 Technical specifications 4 TECHNICAL SPECIFICATIONS 4.1 GEA Grasso SP1 Small SC Types C, D, E, G fig.3: GEA Grasso SP1 Small SC Types C, D, E, G Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L H B DN1 DN2 Weight without motor (kg) C D E G The total width is 1220 mm for DN1 = 125. GEA Refrigeration Germany GmbH P_201011_1 Generated

16 Technical specifications 4.2 GEA Grasso M Series SC Types H, L, M, N fig.4: GEA Grasso M Series SC Types H, L, M, N Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L H B DN1 DN2 Weight without motor H L M N GEA Refrigeration Germany GmbH P_201011_1 Generated

17 Technical specifications 4.3 GEA Grasso SP1 Medium SC Types M, N (52 bar-variant) fig.5: GEA Grasso SP1 Medium SC Types M, N (52 bar-variant) Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L H1 H2 B DN1 DN2 Weight without motor M N L Motor (mm) for standard motors IP23 and IP55, design IMB3 (with stand) Capacity (kw) L motor IP L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

18 Technical specifications 4.4 GEA Grasso SP1 Large SC Types P, R, S, T, V, W, Y (with horizontally arranged oil separator) fig.6: GEA Grasso SP1 Large SC Types P, R, S, T, V, W, Y (with horizontally arranged oil separator) Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L1 3 B H DN1 DN2 Weight without motor (kg) P R S T V W Y total length = L1 + L2 18 GEA Refrigeration Germany GmbH P_201011_1 Generated

19 Technical specifications DN L GEA Refrigeration Germany GmbH P_201011_1 Generated

20 Technical specifications 4.5 GEA Grasso SP1 Large SC Types Z, XA (with horizontally arranged oil separator) fig.7: GEA Grasso SP1 Large SC Types Z, XA (with horizontally arranged oil separator) Technical specifications Grasso SC Type Z Nominal motor power (kw) Dimensions (mm) Ø D (mm) Oil charging (l) Diameter nominal (mm) L4 H B DN XA DN2 Weight without motor (kg) DN L total length = L1 + L2 GEA Refrigeration Germany GmbH P_201011_1 Generated

21 Technical specifications 4.6 GEA Grasso SP1 Large SC Types P, R, S, T fig.8: GEA Grasso SP1 Large SC Types P, R, S, T Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L H1 H2 B DN1 DN2 Weight without motor (kg) P R S T GEA Refrigeration Germany GmbH P_201011_1 Generated

22 Technical specifications L Motor (mm) for standard motors IP23 and IP55, design IMB3 (with stand) Capacity (kw) L motor IP L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

23 Technical specifications 4.7 GEA Grasso SP1 Large SC Types V, W, Y fig.9: GEA Grasso SP1 Large SC Types V, W, Y Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L B H1 H2 DN1 DN2 Weight without motor V W Y L Motor (mm) for standard motors IP23 and IP55, design IMB3 (with stand) Capacity (kw) L motor IP L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

24 Technical specifications 4.8 GEA Grasso SP1 Large SC Types Z, XA fig.10: GEA Grasso SP1 Large SC Types Z, XA Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L B H1 H1 DN1 DN2 Weight without motor Z XA L Motor (mm) for standard motors IP23 and IP55, design IMB3 (with stand) Capacity (kw) L motor IP L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

25 Technical specifications 4.9 GEA Grasso SP1 Large SC Types XB, XC, XD, XE, XF fig.11: GEA Grasso SP1 Large SC Types XB, XC, XD, XE, XF Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil filling capacity Dimensions Diameter nominal (mm) L B H1 H2 DN1 DN2 Weight without motor XB XC XD XE XF GEA Refrigeration Germany GmbH P_201011_1 Generated

26 Technical specifications L Motor (mm) for standard motors IP23 and IP55, 400 V, design IMB3 (with stand) Capacity (kw) L motor IP L motor IP L Motor (mm) for standard mean voltage motors IP55, 6 kv, design IMB3 (with stand) Capacity (kw) L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

27 Technical specifications 4.10 GEA Grasso SP2 SC Types (LP) H, L, M, N, P, R fig.12: GEA Grasso SP2 SC Types (LP) H, L, M, N, P, R Technical specifications Grasso SC Type Nominal motor power (kw) Oil Dimensions (mm) Diameter nominal (mm) Weight Ø D without charging (l) (mm) motor LP (kw) LP (kw) L H B DN1 DN2 NB3 (kg) H L M N P R L Motor (mm) for standard motors IP23 and IP55, design IMB5 (with flange) (for LP-compressor types C, D, E, G) Capacity (kw) L motor IP L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

28 Technical specifications 4.11 GEA Grasso SP2 SC Types (LP) S, T, V, W, Y, Z fig.13: GEA Grasso SP2 SC Types (LP) S, T, V, W, Y, Z Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) LP (kw) LP (kw) L H B DN1 DN2 NB3 Weight without motor (kg) S T V W Y Z L Motor (mm) for standard motors IP23 and IP55, design IMB3 (with stand) Capacity (kw) L motor IP L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

29 Technical specifications 4.12 GEA Grasso SPduo Small SC Types C, D, E, G fig.14: GEA Grasso SPduo Small SC Types C, D, E, G Technical specifications Grasso SC Type Nominal motor power (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L H1 H2 B DN1 DN2 Weight without motor (kg) C D E G GEA Refrigeration Germany GmbH P_201011_1 Generated

30 Technical specifications 4.13 GEA Grasso SPduo Medium SC Types H, L, M, N fig.15: GEA Grasso SPduo Medium SC Types H, L, M, N Technical specifications Grasso SC Type Nominal motor power 2x (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L H1 H2 B DN1 DN2 Weight without motor (kg) H L M N L Motor (mm) for standard motors IP23 and IP55, design IMB3 (with stand) Capacity (kw) L motor IP L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

31 Technical specifications 4.14 GEA Grasso SPduo Large SC Types P, R, S, T fig.16: GEA Grasso SPduo Large SC Types P, R, S, T Technical specifications Grasso SC Type Nominal motor power 2x (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L B H1 H2 DN1 DN2 Weight without motor (kg) 5450 P R S T GEA Refrigeration Germany GmbH P_201011_1 Generated

32 Technical specifications L Motor (mm) for standard motors IP23 and IP55, design IMB3 (with stand) Capacity (kw) L motor IP L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

33 Technical specifications 4.15 GEA Grasso SPduo Large SC Types V, W, Y fig.17: GEA Grasso SPduo Large SC Types V, W, Y Technical specifications Grasso SC Type Nominal motor power 2x (kw) Ø D (mm) Oil charging (l) Dimensions (mm) Diameter nominal (mm) L H1 H2 B DN1 DN2 Weight without motor (kg) V W Y L Motor (mm) for standard motors IP23 and IP55, design IMB3 (with stand) Capacity (kw) L motor IP L motor IP GEA Refrigeration Germany GmbH P_201011_1 Generated

34 Option frequency inverter 5 OPTION FREQUENCY INVERTER fig.18: Power panel and frequency inverter, view The screw compressor packages with screw compressors and frequency control are driven with a minimum speed of 1500 min -1. The permissible max. speed [rpm] is 3600 min -1. The power panel with frequency inverter is delivered separately and is connected to the compressor drive motor using shielded cables on-site. When connecting, the output side power cables must be kept as short as possible for minimising the electromagnetic disturbances. The communication of the control unit with the frequency inverter is effected via hardware cabling. The driving power of the compressor drive motors of the series of the screw compressor packages with frequency controllers is limited to 630 kw. Higher capacities are possible only on request. The capacity is regulated using a combined slide/speed regulation. Technical data for frequency inverter (defined by GEA Refrigeration Germany GmbH) Operating frequency Hz Operating voltage 3 Phase, 400 V +/- 5% Filter EMV filter class A according to EN Communication Display Type of control Protective functions Hardware cabling Display for displaying operating parameters, shut-down and warning messages Sine weighted pulse width modulation, U/f constant curve design Overcurrent 34 GEA Refrigeration Germany GmbH P_201011_1 Generated

35 Option frequency inverter Technical data for frequency inverter (defined by GEA Refrigeration Germany GmbH) Resonance protection Conditions of use Suppressible frequency bands < 93 % rel. humidity, +5 C to +40 C, max. 1000m above mean sea level Power panel The power panel includes the controller with operating / display unit, the input and output sub-assemblies as well as the frequency inverter with the described components. Oil pump and oil heater are switched on/off using the contactors included in the power panel. Motor current transformer, motor winding protection and emergency stop switch are integrated into the power panel. Compressor drive motor For a screw compressor package with frequency control, compressor drive motors with special roller bearings corresponding to the requirements of the frequency inverter operation are used. The sound power level in case of operation with frequency controller increase by 4 db - 8 db. Further technical specifications (Power current with frequency inverter) Nominal motor power (kw) Weight (kg) Dimensions (mm) B H T As an alternative to the described complete solution, the screw compressor package can be delivered without the power panel. In this case, the screw compressor package is delivered with a built on controller. The frequency inverter is provided as a built-in device (IP20). The customer takes over the complete responsibility for the installation as well as the wiring of the frequency inverter with the compressor drive motor and the controller in accordance with the EMC Directive 2004/108/EC (shielded cables, separate cable ducts). GEA Refrigeration Germany GmbH P_201011_1 Generated

36 GEA Omni control panel 6 GEA OMNI CONTROL PANEL 6.1 Product Highlights GEA is synonymous with precision-engineered solutions, and the GEA Omni control panel extends its history of leadership and innovation. Featuring a high-definition, multi-touch screen, GEA Omni delivers the ease of use and technical wow factor that industry professionals have come to expect from GEA. Powerful, yet approachable. Cerebral, yet intuitive. Sophisticated, yet simple. Simply - GEA Omni. GEA Omni offers what operators expect from a control panel: maximum efficiency and reliable operation of their system. This next-generation control panel integrates and optimally coordinates all required system components, resulting in a demand-driven and highly energy-efficient facility operations. The GEA Omni advantage: Complete system control in one panel Control your entire refrigeration or gas compression system with one GEA Omni High-definition display 1366 x 768 resolution Multi-touch display Natural and intuitive input Field configurability Easy retrofit panel installation Configurable Modbus TCP Ethernet communications Read/Write information from other controllers without additional wiring Hardware layout Standard industrial components with modular layout Unique user setup and auditing Create unique users and monitor usage/actions Drawings, manuals and videos Documentation at your fingertips with helpful videos available on the panel display Predictive maintenance Notifications for recommended service GEA OmniLink Application to remotely view and manage your GEA Omni control panels with Ethernet file transfer GEA OmniHistorian Application to view historical data from GEA Omni control panels and perform detailed analysis Global product with local sales and support Single design Manufactured in North America, Europe, and Asia Preconfigured in more than 25 languages GEA peace of mind Invented, manufactured, and backed by the worldwide leader in refrigeration and gas compression control panel technology 36 GEA Refrigeration Germany GmbH P_201011_1 Generated

37 fig.19: GEA Omni Enclosure without indicator lamps GEA Omni control panel fig.20: GEA Omni Enclosure with indicator lamps Standard functions, typical for compressor control The GEA Omni performs the following standard functions: Display of all important physical and technical parameters, e.g. pressure, temperature, motor current, capacity, number of running hours, operating mode and status signals Hint! Certain parameters and menus are hidden when not used. Automatic start up and shut down of the compressor unit and capacity regulation dependent on: suction pressure discharge pressure external pressure external temperature network temperature inlet temperature (evaporator, secondary refrigerant) outlet temperature (evaporator, secondary refrigerant) inlet temperature (condenser) outlet temperature (condenser) Monitoring of all operating parameters Compressor capacity limitation, in case the discharge pressure, suction pressure, secondary refrigerant temperature, motor current or discharge temperature (reciprocating compressors only) limits are approached Annunciation history (notifications, warnings and shutdowns) with date and time Wire failure detection for all analog input signals Password protection for preventing unauthorized access to important parameters Program, configuration and settings saved in non-volatile memory Control by potential-free contacts by a higher-level controller GEA Refrigeration Germany GmbH P_201011_1 Generated

38 GEA Omni control panel Communication via Allen-Bradley DF1, EtherNet/IP, Modbus RTU or Modbus TCP with central controller or building management system The GEA Omni consists of: Enclosure (of various sizes and mounting options shown in ) - IEC standard IP54 / NEMA 4 minimum rating Enclosure door with: Industrial Panel PC, consisting of an IPC with multi-touch screen and high-definition display for the user interface Emergency stop button directly connected to starter outputs for immediate stop of all rotating equipment USB connector with IP54 cover, for transfer of data into and out of IPC Optional indicator lamps for: Running indicates compressor is starting, running, or stopping Warning indicates operating condition has exceeded a warning setting Shutdown indicates compressor has been stopped because operating condition has exceeded a shutdown setting Enclosure interior (see ): Power supply for IPC, input circuits, output circuits and sensors I/O system provides interface to all digital and analog inputs monitored and outputs controlled Terminals for incoming supply power and for field wiring terminations Fuses and circuit breakers for short circuit and overcurrent protection; IPC and I/O logic protected by a fuse; control and sensor power connections protected by circuit breaker Wire duct to provide conduit for wiring inside enclosure fig.21: 38 GEA Omni Enclosure interior GEA Refrigeration Germany GmbH P_201011_1 Generated

39 6.2 GEA Omni control panel Input and Output Signals Low-voltage switchgear - GEA Omni from the low-voltage switchgear to the GEA Omni from the GEA Omni to the low-voltage switchgear INPUTS OUTPUTS Hint! Not applicable if the low-voltage switchgear is included in the scope of supply. Supply: V, 50/60 Hz digital analog (4-20 ma) Feedback compressor Compressor motor protection Feedback oil pump Compressor motor current Compressor motor speed 5 digital analog Run compressor Run oil pump Setpoint compressor motor speed 5 (4-20 ma) Remote controller or BMS (building management system) - GEA Omni from the remote controller (BMS - building management system) to the GEA Omni from the GEA Omni to the remote controller (BMS - building management system) INPUTS OUTPUTS digital analog External start/ stop Status - Ready for remote control External load Status - Compressor running External unload Unit okay External start permission Auxilairy output #1 External reset Select 2nd setpoint Compressor blocked External setpoint Primary slide rposition (4-20 ma) 5 digital analog (4-20 ma) Option, for operation with frequency inverter only GEA Refrigeration Germany GmbH P_201011_1 Generated

40 GEA Omni control panel Refrigerating plant - GEA Omni from the refrigerating plant to the GEA Omni INPUTS digital Emergency Stop from the GEA Omni to the refrigerating plant OUTPUTS digital: -- Separator level 6 ECO level 6 Gas detection analog (4-20 ma): -- analog (4-20 ma): -- 6 Option 40 GEA Refrigeration Germany GmbH P_201011_1 Generated

41 GEA Omni control panel Screw compressor package - GEA Omni from the screw compressor package to the GEA Omni INPUTS from the GEA Omni to the screw compressor package OUTPUTS digital Discharge pressure safety switch Min. oil level 6 Max. oil level 6 digital Capacity control - LOAD solenoid 7 Capacity control - UNLOAD solenoid 7 Solenoid - Check valve suction filter 67 Solenoids - Vi control 67 Solenoid - Economizer operation 6 Solenoid - Start up unloading 6 analog (4-20 ma) Primary slide position 7 Suction pressure analog (4-20 ma) Setpoint IntelliSOC injection valve 6 Setpoint level control 6 Discharge pressure Oil pressure Pressure after oil filter 7 Suction temperature Discharge temperature Oil temperature ECO temperature 6 ECO pressure 6 Vi slide position 67 7 dependent on compressor type GEA Refrigeration Germany GmbH P_201011_1 Generated

42 Description of Design and Function DESCRIPTION OF DESIGN AND FUNCTION General functional description The screw compressor packages are components of refrigerating plants and serve to compress all usual refrigerants. Use as a heat pump is also possible. 7.2 Refrigerant circuit The screw compressor draws in refrigerant vapour via the suction side check valve and suction filter and then discharges the compressed vapour into the plant via the oil separator and discharge side check valve. The suction side check valve prevents a sudden pressure compensation with the low pressure side of the plant, while also preventing reverse rotation of the screw compressor. The discharge side check valve prevents refrigerant from re-condensing in the oil separator. Hint! The discharge side check valve can be integrated into the oil separator for screw compressor packages with discharge side diameters nominal up to NB 150. The suction filter prevents dirt particles carried by the suction flow from penetrating into the compressor. The filter element is characterized by a very large filtering area. The filter fineness is max 140 μm. Gas vibrations, which can arise in the compressor compression chamber at high pressure ratios in the zero discharge zone, are avoided by a gas vibration protection device. This consists of a pressure compensation line between the oil separator and the compressor working chamber. Process flow diagrams fig.22: Process flow diagram GEA Grasso SP1, GEA Grasso M 1 Suction side 2 Compressor 3 Oil separator 4 Pressure side 42 GEA Refrigeration Germany GmbH P_201011_1 Generated

43 fig.23: Process flow diagram GEA Grasso SP2 1 Suction side 2 Low pressure compressor 3 High pressure compressor 4 Oil separator 5 Pressure side fig.24: Description of Design and Function Process flow diagram GEA Grasso SPduo 1 Suction side 2 Compressor 1 3 compressor 2 4 Oil separator 5 Pressure side GEA Refrigeration Germany GmbH P_201011_1 Generated

44 Description of Design and Function 7.3 Oil circuit The screw compressors operate oil-flooded. During the compression process, refrigerating machine oil is supplied to the compressor for lubrication, sealing, noise reduction, and absorption of part of the compression heat. After the compression process, the oil is separated again from the refrigerant in the oil separator. 7.4 Oil separation Oil separation (installed vertically) The refrigerant-oil mixture is led into the oil separator. The oil separator consists of two chambers where the three-phase separation of the oil from the refrigerant is performed. The first chamber employs gravity separation and drop separation in the demistor. This separated oil collects on the bottom of the first chamber. At the same time, this part of the oil separator serves as an oil collector. The fine separation of the aerosol-type oil portion from the refrigerant is performed in the second part of oil separator by means of replaceable oil fine separation cartridges. The oil separated in the fine separation part of the oil separator is returned to the compressor via an additional orifice Oil separation (installed horizontally) The refrigerant-oil mixture is led into the first part of oil separator. The oil separator consists of three chambers. The first chamber employs gravity separation. The hot gas passes the demister while flowing out of the first chamber into the second chamber. The oil separated thereby is collected in the second chamber. Both the chambers simultaneously serve as oil collector. The fine separation of the aerosol-type oil portion from the refrigerant is performed in the third chamber of oil separator by means of replaceable oil fine separation cartridges. The oil separated in the fine separation part of the oil separator is returned to the compressor via an additional orifice. 7.5 Oil heater The oil heater on the oil separator is to be started when the package is shut down in order to ensure a minimum oil temperature and sufficient oil viscosity required for restarting the package. The oil heater is used in a regulated and non-regulated version. The maximum temperature of the heating rod is restricted. 7.6 Oil cooling Before it is returned to the compressor for use, the oil heated up in the compressor has to be cooled down to a temperature at which it has sufficient viscosity. The following oil cooling types are available: 1. liquid cooling water (non corrosive) propylene-glycol ethylene-glycol other cooling media on request 2. thermosysphon cooling 3. DX oil cooling 4. refrigerant injection into the compressor 44 GEA Refrigeration Germany GmbH P_201011_1 Generated

45 Description of Design and Function 7.7 Oil filter After cooling, the oil passes into the oil filter which holds back solid particles from the full oil flow. Due to its large surface, the star-folded glass fibre element has a high absorbing capacity and thus a long operating lifetime. The relative filter fineness is 25 μm. 7.8 Oil pump Oil pump (integrated) The oil pump is run directly from the compressor and will run during the entire compressor operations. The oil pump provides sufficient oil pressure for capacity control. The unused oil supplied by the oil pump flows via an oil pressure control valve (spring-held check valve) to the oil supply channel in the screw compressor. The check valve (integrated into solenoid valve block for capacity control) regulates the pressure difference between the discharge and suction sides of the oil pump. The pressure difference between the suction and pressure side must be higher than 3 bar Oil pump (external) The oil pump runs for prelubrication and during the entire operation of the compressor. It draws the refrigerating machine oil from the collection room in the oil separator, via the oil cooler and oil filter and pumps it to the bearings, the balance piston, the shaft seal, to the capacity control system and, if fitted, to the compressor's hydraulic Vi adjustment system. The oil pump pumps more oil than the compressor uses. This surplus quantity of oil is returned to the oil pump suction side via the spring loaded oil pressure control valve. The oil pressure control valve regulates the pressure difference between the oil pump pressure side and the discharge pressure Oil pumpe (without) No additional pressure increase is necessary to supply the capacity control, bearings and the compression chamber with oil. The pressure difference between the suction and discharge sides of the compressor is used to ensure the oil supply. The pressure difference between the suction and pressure side must be higher than 3 bar. The oil pressure must be at least 2 bar above the suction pressure. 7.9 Oil injection The injection oil is supplied without a pump via the oil injection control valve. The oil injection control valve is used to adjust the required discharge temperature. The control valve is provided with a check valve function to prevent sucking refrigerant through the oil pump Oil circuit The oil is sucked from the oil storage of the oil separator. It is then cooled in the oil cooler (exception: packages with refrigerant injection). The following three-way valve mixes warm oil from the oil separator with cooled oil from the oil cooler to ensure a predefined optimum oil temperature. This is followed by the cleaning of the oil in the oil filter. The oil is charged with or without oil pump in the compressor (depending on the type of the package). The three-way valve and the oil filter are integrated (for small and medium-sized packages) in the OMC block. The external oil pump (if present) is flanged on the oil management block as oil distribution system. GEA Refrigeration Germany GmbH P_201011_1 Generated

46 Description of Design and Function The oil flow is distributed via the bore-holes and channels to functional ranges of the screw compressor. All regulating valves and shut-off valves necessary for the oil circuit control are integrated into the block. As a result, a centralised service unit is available for the screw compressor package. The oil filter with OMC block is fitted with an oil draining and oil charging stop valve which may be connected to a separate oil pump or receiver. Vent valves are fitted to oil filters for maintenance and repair purposes. The oil in oil filter may be drained for changing oil filter via a separate stop valve. For Large series packages and special designs without OMC block, all components are arranged decentrally in the oil supply system Capacity control The screw compressors are fitted with a continuous capacity control with a range of 0-100%. The capacity is adjusted by shortening the screw compressor stroke. The defining factor for the compression process is the effective rotor length; this is altered by a hydraulically operated control slide. The position of the control slide is recorded by the position sensor. The control device signals the attainment of the MIN or MAX end position and the relative control slide position can be displayed on the Touch Panel in percent. The hydraulic adjustment of the control slide is done using four solenoid valves which are integrated into a single block. The control slide adjustment speeds in the MIN and MAX directions should be the same as much as possible during operation to ensure better compressor control. To do this, throttle screws are available on the solonoid valve block for influencing the adjustment speed. The time for manual continuous adjustment from one end position should be on average between 30 and 45 seconds Vi adjustment (optionally) The dimension of compressor volume flow is adapted by a hydraulically operated secondary slide to prevent an improper compression. Depending on the current operating conditions, thereby getting the best efficiency is ensured. 46 GEA Refrigeration Germany GmbH P_201011_1 Generated

47 7.13 Description of Design and Function Information about noise emissions The noise information provides approximate parameters and apply to the installation without any secondary noise protection measures. The information has a tolerance of ±3 db. The precise data depend closely on the emission values for the motors, which are manufacturer dependent. Should local conditions require adherence to noise levels, a calculation should be made using the specific motor data in individual cases. Noise protection measures such as motor encapsulation or complete assembly encapsulation may generate significant noise reduction. Wearing hearing protection with sufficient noise reduction is recommended in rooms with running screw compressor packages. Caution! According to EU Directive 2003/10/EC, the allowable exposure limit value regarding the daily noise exposure level is 80 db(a). In the event of noise levels above this limit value the system operator must provide the operator with information on exposure to noise and personal hearing protection and ensure that this is also worn (2003/10/EC Article 6). Noise level LWA Compressor type/theoretical throughput volume in m3/h at 2940 RPM Compressor drive motor LWA in db(a) mains operation 400 V / 50 Hz at 40 C C D E G H L M Max Min Max Min Max Min Max Min Max Min Max Min Max Output in kw GEA Refrigeration Germany GmbH P_201011_1 Generated

48 Description of Design and Function Noise level L WA Compressor drive motor at 40 C Output in kw Compressor type/theoretical throughput volume in m3/h at 2940 RPM L WA in db(a) mains operation 400 V / 50 Hz C 231 D 265 E 321 G 372 H 471 L 544 M 690 Min Max Min Max Min Max Min Max 101 Min 94 Compressor drive motor at 40 C Output in kw Compressor type/theoretical throughput volume in m3/h at 2940 RPM L WA in db(a) mains operation 400 V / 50 Hz P 805 N 860 R 1040 S 1290 T V 1640 W 55 Max Min Max Min Max Min Max Min Max Min Max GEA Refrigeration Germany GmbH P_201011_1 Generated

49 Description of Design and Function Compressor drive motor at 40 C Output in kw Compressor type/theoretical throughput volume in m3/h at 2940 RPM L WA in db(a) mains operation 400 V / 50 Hz P 805 N 860 R 1040 S 1290 T V 1640 W Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max 105 Min 99 Compressor drive motor at 40 C Output in kw Compressor type/ theoretical swept volume in m³/h at 2940 rpm L WA in db(a) mains operation 400 V / 50 Hz Y 2296 Z 2748 XA 3250 XB 4150 XC 4900 XD 5800 XE 7170 XF Max 99 Min Max Min GEA Refrigeration Germany GmbH P_201011_1 Generated

50 Description of Design and Function Compressor drive motor at 40 C Output in kw Compressor type/ theoretical swept volume in m³/h at 2940 rpm L WA in db(a) mains operation 400 V / 50 Hz Y 2296 Z 2748 XA 3250 XB 4150 XC 4900 XD 5800 XE 7170 XF Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min GEA Refrigeration Germany GmbH P_201011_1 Generated

51 Description of Design and Function Hint! The individual emission data for the motor-compressor combinations can be found in the tables and added using logarithms for screw compressor packages and chillers (DuoPack version) as well as two-stage screw compressor packages. GEA Refrigeration Germany GmbH P_201011_1 Generated

52 Economizer 8 ECONOMIZER 8.1 Economizer variants for single-stage screw compressor packages fig.25: Type A Economizer port pipe Economizer port pipe P Pressure sensor (optional) T Temperature sensor (optional) Suction line (mounted on the screw compressor package) consisting of: Stop valve Suction filter Check valve Thermometer/ Service valve Optional: Pressure and temperature sensors Hint! Several screw compressor packages can be connected to an economizer in parallel. When doing so, each connection line must be provided with a pressure controller (constant/ differential pressure controller). 52 GEA Refrigeration Germany GmbH P_201011_1 Generated

53 8.1.2 fig.26: Economizer Type B Economizer for two-stage expansion (Open flash) with level control Economizer for two-stage expansion (Open flash) with level control P Pressure sensor (optional) T Temperature sensor (optional) LSA Level monitor LC Level control 1 from condenser 2 to evaporator 3 Open flash vessel (vertical) Scope of supply: Suction line according Type A Open flash vessel, separate mounted, with level controlled injection, filter and stop valves at the inlet side Constant pressure valve (differential pressure valve) at the vapour outlet of the economizer Maximum level switch Safety valve Oil draining valves Pressure and temperature sensors Hint! Economizer for two-stage expansion with level control (Open flash) especially for NH3: Refrigerant reservoir is required in the high stage liquid receiver! GEA Refrigeration Germany GmbH P_201011_1 Generated

54 Economizer fig.27: Type C Economizer for single-stage expansion (Closed flash) with shell and tube heat exchanger Economizer for single-stage expansion (Closed flash) with shell and tube heat exchanger P Pressure sensor (optional) T Temperature sensor (optional) 1 from condenser 2 to evaporator 3 Side load connection (optional) Scope of supply: Suction line according Type A Shell and tube heat exchanger mounted at the screw compressor package Expansion valve Stop valve, filter, solenoid valve Safety valve Optional: Pressure and temperature sensors Side load connection Type D Economizer for single-stage expansion (Closed flash) with plate heat exchanger The scheme is adequate to Type C. 54 GEA Refrigeration Germany GmbH P_201011_1 Generated

55 8.1.5 fig.28: Economizer Type E Economizer for two-stage expansion (Open flash) with HP floater Economizer for two-stage expansion (Open flash) with HP floater P Pressure sensor (optional) T Temperature sensor (optional) LSA Level monitor LC Level control 1 from condenser 2 to evaporator 3 Open flash vessel (horizontal) Scope of supply: order-related Hint! Economizer for two-stage expansion (Open flash) with HP floater at the inlet and outlet sides, refrigerant reservoir in the low stage liquid separator mainly for NH3. GEA Refrigeration Germany GmbH P_201011_1 Generated

56 Economizer 8.2 Economizer variants for DuoPack screw compressor packages fig.29: Type A-Duo Economizer port pipe Economizer port pipe P Pressure sensor (optional) T Temperature sensor (optional) Suction line (mounted on the screw compressor package) consisting of: Stop valve8 Suction filter8 Check valve8 Thermometer/ Service valve8 Optional: 8 56 Pressure and temperature sensors8 in duplicate GEA Refrigeration Germany GmbH P_201011_1 Generated

57 8.2.2 fig.30: Economizer Type B-Duo Economizer for two-stage expansion (Open flash) with level control Economizer for two-stage expansion (Open flash) with level control P Pressure sensor (optional) T Temperature sensor (optional) LSA Level monitor LC Level control 1 from condenser 2 to evaporator 3 Open flash vessel (vertical) Scope of supply: order-related GEA Refrigeration Germany GmbH P_201011_1 Generated

58 Economizer fig.31: Type C-Duo Economizer for single-stage expansion (Closed flash) with shell and tube heat exchanger Economizer for single-stage expansion (Closed flash), diagram 1 for higher power P Pressure sensor (optional) T Temperature sensor (optional) 1 from condenser 2 to evaporator Scope of supply: Suction line according Type A-Duo Dual tube bundle heat exchanger, mounted at the screw compressor package Expansion valve9 Stop valve9, filter9, solenoid valve9 Safety valve Optional: Pressure and temperature sensors9 Side load connection in duplicate GEA Refrigeration Germany GmbH P_201011_1 Generated

59 fig.32: Economizer Economizer for single-stage expansion (Closed Flash), diagram 2 for lower power P Pressure sensor (optional) T Temperature sensor (optional) 1 from condenser 2 to evaporator Scope of supply: Suction line according Type A-Duo Circuit tube bundle heat exchanger, mounted at the screw compressor package Thermostatic expansion valve Stop valve, filter, solenoid valve Safety valve Constant pressure valve9 Optional: Pressure and temperature sensors9 GEA Refrigeration Germany GmbH P_201011_1 Generated

60 Inquiry sheet 9 INQUIRY SHEET 60 GEA Refrigeration Germany GmbH P_201011_1 Generated