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BOCK FK
Assembly instructions
09740-01.2021-Gb
Translation of the original instructions
FK20/120 N
FK20/145 N
FK20/120 K
FK20/145 K
FK20/120 TK
FK20/145 TK
FKX20/120 N
FKX20/145 N
FKX20/120 K
FKX20/145 K
FKX20/120 TK
FKX20/145 TK
BOCK
®
2 0
FK20/170 N
FK20/170 K
FK20/170 TK
FKX20/170 N
FKX20/170 K
FKX20/170 TK
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Summary of Contents for BOCK FK20/120 N
- Page 1 BOCK FK Assembly instructions 09740-01.2021-Gb Translation of the original instructions FK20/120 N FK20/145 N FK20/170 N FK20/120 K FK20/145 K FK20/170 K FK20/120 TK FK20/145 TK FK20/170 TK FKX20/120 N FKX20/145 N FKX20/170 N FKX20/120 K FKX20/145 K FKX20/170 K...
- Page 2 Observe the safety instructions contained in these instructions. These instructions must be passed onto the end customer along with the unit in which the compressor is installed. Manufacturer Bock GmbH 72636 Frickenhausen Contact Bock GmbH Benzstraße 7...
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Page 3: Table Of Contents
Contents Page Safety 1.1 Identification of safety instructions 1.2 Qualifications required of personnel 1.3 General safety instructions 1.4 Intended use Product description 2.1 Brief description 2.2 Name plate 2.3 Type key Areas of application 3.1 Refrigerants 3.2 Oil charge 3.3 Limits of application 3.4 N and K versions 3.4.1 Limits of application R134a 3.4.2 Limits of application R407C 3.5 TK version... -
Page 4: Safety
1| Safety 1.1 Identification of safety instructions: Indicates a dangerous situation which, if not avoided, will cause DANGER! immediate fatal or serious injury. Indicates a dangerous situation which, if not avoided, may cause fatal or serious injury. WARNING! Indicates a dangerous situation which, if not avoided, may cause fairly severe or minor injury. -
Page 5: General Safety Instructions
Only the refrigerant specified in these instructions may be used. Any other use of the compressor is prohibited! The Bock refrigerating compressor named in the title is intended for installation in a machine (with- in the EU according to the EU Directives 2006/42/EC Machinery Directive, 2014/68/EU Pressure Equipment Directive). -
Page 6: Product Description
2| Product description 2.1 Brief description Three different designs are available for various ranges of application: > for air-conditioning the K Design > for air-conditioning or normal cooling the N Design > for deep freezing the TK Design The differences lie mainly in the valve plate tooling which is adapted to each applica- tion range where operational safety and efficiency are concerned. -
Page 7: Type Key
2| Product description 2.2 Name plate (example) BOCK BB12345A020 Bock GmbH, Benzstr. 7 72636 Frickenhausen, Germany FKX20/170N 14,8 19/28bar Fig. 3 Machine number Type designation Factory-filled oil type Displacement at 1450 rpm LP: Max. permissible operating pressure Observe the limits of application (g) Low pressure side diagrams! HP: Max. -
Page 8: Areas Of Application
, Chapter 6.4. 3.3 Limits of application ATTENTION! Compressor operation is possible within the operating limits. These can be found in Bock compressor selection tool (VAP) under vap.bock.de. Observe the information given there. - M ax. permissible discharge end temperature: 140°C - Max. permissible ambient temperature: 100°C... -
Page 9: Compressor Assembly
Check the compressor for transport damage before starting any work. 4.1 Setting up Fittings (e.g. pipe holders, additional units etc.) on the compressor are permissible only following consultation with Bock. Setup on an even surface or frame with sufficient load-bearing capacity. The compressor can be fastened as follows: - using the 4 drill holes on the baseplate - using the 3 side M10 tapped blind holes on the left or right of the compressor housing - using the 4 M10 tapped blind holes on the front of the compressor housing. -
Page 10: V-Belt Drive D
4| Compressor assembly 4.3 V-belt drive ATTENTION! Inappropriately designed belt drives, especially belt knocking or excessive tensioning forces can cause compressor damage! Make sure that the drive belt is designed correctly, e.g. by using tensioners and selecting the belt profile and the belt length. 4.4 Main bearing load To prevent the belt drive overloading the compressor main bearing, 600 N max = 30kNmm... -
Page 11: Pipe Connections
4| Compressor assembly 4.6 Pipe connections The pipe connections have graduated inside diameters so that pipes in the common millimeter and inch dimensions can be used. The connection diameters of the shut-off valves are designed for maximum compressor output. The required pipe cross-section must be matched to the capacity. -
Page 12: Operating Mode Of The Lockable Service Connections
4| Compressor assembly 4.9 Operating mode of the lockable service connections Pipe connection Opening the shut-off valve: a) Spindle 1: turn to the left (counter-clockwise) as far as it will go. —> Shut-off valve fully opened / service connection 2 closed Fig. 11 Pipe connection Opening the service connection (2): b) Spindle 1: Turn ½ - 1 rotation to the right. —> Service connection 2 opened / shut-off valve opened. Fig. -
Page 13: Commissioning
5| Commissioning 5.1 Preparations for start-up INFO! To protect the compressor against inadmissible operating conditions, high-pressure and low-pressure pressostats are mandatory on the installation side. The compressor has undergone trials in the factory and all functions have been tested. There are therefore no special running-in instructions. -
Page 14: Refrigerant Charge
5| Commissioning 5.5 Refrigerant charge CAUTION! Wear personal protective clothing such as goggles and protective gloves! ATTENTION! Avoid overfilling the system with refrigerant! To avoid shifts in concentration, zeotropic refrigerant blends (e.g. R407C) must always be added to the refrigerating plant in liquid form. Do not pour liquid refrigerant through the suction line valve on the compressor. It is not permissible to mix additives with the oil and refrigerant. -
Page 15: Avoiding Liquid Shocks
5| Commissioning 5.7 Avoiding liquid shocks ATTENTION! Slugging can damage the compressor and cause refrigerant to leak. To prevent liquid shocks: The complete refrigeration plant must be correctly designed and executed. The capacities of all components must be compatible (particularly evaporator and expansion valve). Suction gas superheating at the evaporator output should be at least 7 – 10 K (check setting of the expansion valve). -
Page 16: Maintenance
Annual checks: Check the tightness of the compressor, oil level, running noise, pressures, tem- peratures, function of auxiliary devices. 6.3 Recommended spare parts/accessories Available spare parts and accessories can be found on our compressor selection tool under vap.bock.de as well as at bockshop.bock.de. Only use genuine Bock spare parts! -
Page 17: Extract From The Lubricants Table
The oil type charged 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 standard oil types Recommended alternatives Fuchs Reniso Triton SE 55 Fuchs SEZ 32/68/80 (e.g. -
Page 18: Accessories
7| Accessories 7.1 Thermal protection thermostat (Item No. 07595) A special intermediate flange, located below the discharge line valve, is used to attach the sensor element (Part no. 04175). Wire the thermal protection thermostat in series with the control line. Technical Data: Switching voltage max. : 24 V DC Switching current max. : 2.5 A at 24 V DC Switch-off temperature : 145 °C ± 5 K Switch-on temperature : approx. -
Page 19: Technical Data
8| Technical data No. of cylinders... -
Page 20: Dimensions And Connections
M. Schaich contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event GEA Bock GmbH - Benzstraße Zust. / Rev. Änd.-Nr. / Mod-No. Datum / Date Bearb. - Page 21 9| Dimensions and connections Suction line see technical data, Chapter 8 Discharge line Connection suction side, not lockable 16 " UNF Connection suction side, lockable 16 " UNF Connection suction side, not lockable 8 " NPTF Connection discharge side, not lockable 16 "...
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Page 22: Declaration Of Incorporation
10| Declaration of incorporation Declaration of incorporation for incomplete machinery in accordance with EC Machinery Directive 2006/42/EC, Annex II 1. B Manufacturer: Bock GmbH Benzstraße 7 72636 Frickenhausen, Germany We, as manufacturer, declare in sole responsibility that the incomplete machinery... -
Page 23: Service
11| Service Dear customer, if you have any 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)7022 9454-0 or via service@bock.de Yours faithfully Bock GmbH... - Page 24 BOCK ® Bock GmbH Benzstraße 7 72636 Frickenhausen Germany Phone +49 7022 9454-0 +49 7022 9454-137 www.bock.de © Bock GmbH. All rights reserved. Subject to modifications. Printed in Germany.
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