Master module for 2 compressor racks
HVV-G4_V9.2.0_PI_2024-02_EN 1
Subject to technical changes
HVV-G4
1 HVV-G4
Master module for 2 compressor racks
1.1 Front view
Fig. 1: Front view HVV-G4
1.2 Features
• Simple start-up with configuration of the plants using default settings from the expert database
• Connection of 8 rack field modules
• Control of 16 compressors (depending on compressor type, field module type and operating
mode)
• Compressor control according to COP
• Differentiation between unused sensors and faulty sensors
• Control circuits per rack:
- Suction pressure control
- Condenser control
- Control of electronic expansion valves
• Control processes:
- Standard multiple contact switch with base load change
- Compressor control with frequency converter
- Frigotakt+ and Frigotakt-G4
• Can be locked to prevent unwanted parameter adjustment (SAC – Security Access Control)
• Integrated relay outputs
• Multilingual menu navigation (DE/EN/FR/NL)
• Innovative G4 control concept with direct navigation by Quicklink
• Graphical display with backlighting, plain text, 6 operating keys, and 1 Info key
• Context-sensitive help with links to the paperless info Wurm app
• Interchangeable with FRIGOLINK-G3
• Connection to the Wurm system via Wurm CAN communication bus (C-BUS) and
FRIGODATA XP
• High level of safety with galvanically isolated Wurm CAN buses
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