GEA Grasso M-Series, Руководство по эксплуатации

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7.7.12 Monitoring devices 45
7.7.13 Components installed by the client 45
7.8 General functional description 45
7.9 Refrigerant circuit 45
7.10 Oil System 46
7.10.1 Oil separation 46
7.10.2 Oil heater 46
7.10.3 Oil cooling 46
7.10.4 Oil filter 46
7.10.5 Oil pump 46
7.10.6 Oil injection 47
7.10.7 Oil circuit, OMC block 47
7.11 Capacity control 47
7.12 Technical specifications 47
7.12.1 Designed for use in explosive atmospheres! 47
7.12.2 Basic terms 48
7.12.3 Operating media 48
7.12.3.1 Refrigerant 48
7.12.3.2 Refrigeration machine oils 48
7.12.3.3 Secondary refrigerant 48
7.12.4 Operating limits 48
7.12.5 Water quality requirements, parameters 50
8 START-UP 53
8.1 Important information for start-up 53
8.2 Basics 54
8.3 Connecting the screw compressor package 54
8.3.1 Connecting the pipes 54
8.3.2 Electrical connection 55
8.4 Paint and insulation 55
8.5 Start-up procedure 55
8.5.1 Checking the electrical connection 55
8.5.2 Leak test 55
8.5.3 Drying, vacuum 56
8.5.4 Operating position of valves 57
8.5.5 Oil charge 60
8.5.5.1 Pressure compensation with the cooling system 60
8.5.5.2 Checking the direction of rotation of the oil pump motor 60
8.5.6 Checking the fault monitoring 61
8.5.7 Checking of the safety pressure limiter 61
8.5.8 Checking of the emergency-OFF button. 61
8.5.9 Adjustment of oil pressure 62
8.5.10 Checking the direction of rotation of the drive motor 62
8.5.11 Mounting the coupling 62
8.5.12 Checking the water circuits 63
8.5.13 Initial start-up 63
8.5.14 Checking the adjustment of the control slide 63
8.5.15 Checking the control slide adjustment times 63
8.5.16 Checking the oil cooler 63
8.5.17 Adjusting the amount of injection oil and the oil temperature 63
8.5.17.1 Screw compressor packages without refrigerant injection 64
8.5.17.2 Compressor units with refrigerant injection 64
8.6 Start-up after long standstill periods 64
8.7 Restarting after approx. 1 year standstill 64
9 USE, OPERATION, CONTROL 65
9.1 Use in explosive atmospheres, installation zones 1 and 2 65
9.2 Important information for the operator 65
9.3 Prerequisite for switching on 65
9.3.1 Overview of the operating modes 67
9.3.2 Setting of setpoint and limiting values as well as safety devices 69
9.4 Operation of the screw compressor package 69
9.5 Instructions regarding failures, their causes and remedies 69
10 CLEANING, MAINTENANCE, REPAIR 72
10.1 Use in explosive atmospheres, installation zones 1 and 2 72
Operating Manual | GEA Grasso M-Series
Screw Compressor Packages
6 GEA Refrigeration Germany GmbH | P_261511_1 | Generated 01.04.2015