D
GB
F
E
3
09726-09.2013-DGbF
Contents
Page
1
Safety
3
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 Main 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
Setting up
5.2 Installation of the liquid subcooler system (standard design)
5.3
Installation example, liquid subcooler with accessories
5.4 Factory-installed liquid subcooler system (optional design)
5.5
Pipe connections
5.6
Pipes
5.7
Laying suction and pressure lines
5.8
Operating the shut-off valves
5.9
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 MP 10
6.5
Connecting of the trigger unit MP 10
6.6
Function test of the trigger unit MP 10
6.7
Oil sump heater (accessories)
7
Commissioning
28
7.1 Preparations for start-up
7.2 Pressure strength test
7.3 Leak test
7.4 Evacuation
7.5 Refrigerant charge
7.6 Start-up
7.7 Avoiding liquit sluggings
8
Maintenance
31
8.1
Preparation
8.2
Work to be carried out
8.3
Spare part 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
Summary of Contents for Bock HGZ Series
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