Semi-hermetic Bock Compressors
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Semi-hermetic Bock Compressors Single-stage and Two-stage Reciprocating Compressors HG (HA) engineering for a better world GEA Refrigeration Technologies

° In touch with our customers GEA Refrigeration Technologies: Your partner for low temperatures GEA Refrigeration Technologies, part of the internationally active GEA Group, is a synonym for industrial refrigeration technology. Since the end of the 19th century, it has been our business to cool processes and products, and to control the temperature of goods in transport. You will find our solutions in the food and beverage sector; in the petrochemical, chemical, and pharmaceutical industries; on fishing ships; in natural gas liquefaction; in infrastructure facilities; and in ice factories....

° Bock Compressors Characteristics semi-hermetic Bock compressors I 1 Single-stage semi-hermetic Bock compressors I 2 Two-stage semi-hermetic Bock compressors I 3 Service - Made by GEA Bock I 4 Disclaimer This brochure has been produced for you with the greatest of care. Nevertheless it is not possible to rule out mistakes completely. In such cases we cannot assume any liability. The contents correspond to the status on going to print. Deviations cannot be ruled out because of the ongoing developement process for our products. 96215-02.2012-Gb ° Subject to change without notice The details...

GEA Bock - More than a compressor Over 75 years ago, when the refrigeration and air-conditioning industry was still in its infancy, our company's founder, Wilhelm Bock, had a vision: he wanted to build first-class and reliable refrigeration machines. In the following decades Bock developed into one of the world's leading manufacturers of refrigeration and airconditioning compressors. Today, GEA Bock offers as part of GEA Refrigeration Technologies the right compressor for all fields of commercial-, industrial-, rail-, bus- and transport refrigeration. That GEA Bock places the highest...

° Bock Compressors Production Program Semi-hermetic compressors HG (HA) The Bock HG (Hermetic Gas-cooled) range of semi-hermetic compressors offers traditional suction gas-cooled compressor state of the art technology. These compressors of the highest quality standard excel in their running comfort, easy maintenance, efficiency and reliability. Suitable as standard for conventional or chlorine-free HFC refrigerants. The HA (Hermetic Air-cooled) range, specially engineered by GEA Bock, is available for deep-freezing applications, in particular for use with the refrigerants R22 and R404A. ºº...

The difference is in the detail Characteristics of semi-hermetic Bock compressors Special features Forward looking compressor models 8 14

° Semi-hermetic Bock Compressors Special features Universal Replaceable motors --e.g. R134a, R404A, R507, R407C, R22 The compressors can be repaired in the field as the drive motor can be One compressor design for all standard refrigerants. exchanged. For air-conditioning applications, normal refrigeration and deep-freezing --Maximum allowed operating pressure (HP): 28 bar Economic capacity control --Cylinder cover incorporating a connection for capacity control High refrigeration capacity combined with minimum power requirement --Possible control stages: 4 cylinder: 50 % --Optimized gas...

° Semi-hermetic Bock Compressors Special features Wear-resistant durable driving gear --2 and 4 cylinder compressor HG(HA)12 to HG(HA)34 --4 and 6 and 8 cylinder compressor HG(HA)4 to HG8 --Solid construction and design --Solid construction and design --Low friction sleeve bearings --Surface-hardened crankshaft --Aluminium pistons with two ring assembly --Low friction sleeve bearings 1 --Aluminium pistons with triple ring assembly, hard-chromium plated sealing ring, HG(HA)4 with double ring assembly --Aluminium connecting rod with high resistance piston bolt bearings starting HG(HA)5 Solid...

° Semi-hermetic Bock Compressors Special features Variable suction line valve position (HG) 4 cylinder 8 cylinder --Shutoff valve rotates through 90° (2 and 4 cylinder) suction cover rotates through 90° (8 cylinder) --Flexible location for suction line connection Oil sump heater --Optional in 2 and 4 cylinder compressors HG(HA)12 up to HG(HA)34 --PTC heater, self-regulating --Replacement without opening the refrigeration circuit --Standard in 4 and 6 and 8 cylinder compressors HG(HA)4 up to HG8 --Immersion case design --Replacement possible without opening the refrigerating circuit 10 |...

° Semi-hermetic Bock Compressors Special features Economic capacity control (option) Via capacity regulator 1 3 Cylinder cover incorporating a connection for capacity control Possible control stages: 2 4 cylinder: 50 %, 6 cylinder: 33 % / 66 %, 8 cylinder: 25 % / 50 % / 75 % Via frequency converter Continuously variable speed control using the Bock EFC / EFCe 1 (Electronic Frequency Control) --Up to 25% less power consumption --EFC 2 Continuously variable speed control directly mounted on the compressor HG(HA)12 to HG(HA)34 1 --EFCe 3 Continuously variable speed control for individual...

0 Semi-hermetic Bock Compressors Special features Bock MP10 Electronic Motor Protection An sdYuflspa lining voltage I tension: AC 230V +M0% SO/SO Hz ztri. UmgsfcuAjttaroperatuf / a*n. imb. Hrtp. M«mp. amb. adnv -30' C ... * 60* C HI = MotorSlarm r motor alarm / alanTrt motsur H2 - Kompnssofalenn t compressor alarm I a a mie compfesseur H3 ■ Nelz E<n / power on.' ressu en circuit Standard with all 2, 4 and 6 cylinder compressors Temperature monitoring with PTC sensors and optical status Discharge gas temperature sensor (option) Further information see separate brochure "Bock semi-hermetic...

° Semi-hermetic Bock Compressors Special features Start unloader with the Bock ESS (option) Single phase AC operation with Bock ESP (option) (Electronic Soft Start) (Electronic Single Phase) --Optional for HG22 and HG34 --Standard three phase AC compressor can be used on a single --Continuous compressor start-up to nominal speed phase supply --No need for conventional start unloaders --No start-up or operating condensers or relays required --IP20 unit for installation in switch cabinet (supplied loose) --Unit designed for installation in switch cabinet --Further information see separate...