GEA Bock HGZ7 - Manual (Page 3)

D
GB
F
E
3
09726-11.2014-DGbF
Contents
Page
1 Safety 4
1.1 Identification of safety instructions
1.2 Qualifications required of personnel
1.3 General safety instructions
1.4 Intended use
2 Product description 6
2.1 Short description standard design
2.2 ain and functional parts
2.3 Short description optional design
2.4 Name plate
2.5 Type key
3 Areas of application 9
3.1 Refrigerants
3.2 Oil charge
3.3 Limits of application
3.4 Subcooling temperature
4 Description of functions 12
4.1 Two-stage refrigeration circuit with liquid subcooler
5 Compressor assembly 14
5.1 Storage and transportation
5.2 Setting up
5.3 Installation of the liquid subcooler system (standard design)
5.4 Installation example, liquid subcooler with accessories
5.5 Factory-installed liquid subcooler system (optional design)
5.6 Pipe connections
5.7 Pipes
5.8 Laying suction ans pressure lines
5.9 Operating the shut-off valves
5.10 Operating mode of the lockable service connections
6 Electrical connection 21
6.1 Information for contactor and motor contactor selection
6.2 Circuit diagram for part-winding start
6.3 Standard motor, design for direct or partial winding start
6.4 Electronic trigger unit MP10
6.5 Connecting the trigger unit MP10
6.6 Functional test of the trigger unit MP10
6.7 Oil sump heater (accessories)
7 Commissioning 28
7.1 Preparations for start-up
7.2 Pressure strengh test
7.3 Leak test
7.4 Evacuation
7.5 Refrigerant charge
7.6 Start-up
7.7 Avoid slugging
8 Maintenance 31
8.1 Preparation
8.2 Work to be carried out
8.3 Spare parts recommendation
8.4 Replacing the valve plates
8.5 Extract from the lubricants table
8.6 Decommissioning
8.7 Accessories
9 Technical data 34
10 Dimensions and connections 35
11 Declaration of conformity and installation 38
12 Service 40