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1
Safety notes
▪
Please read these operating instructions carefully. Failure to comply with these instructions can
lead to the destruction of the system or injuries to personnel.
▪
Installation may only be performed by trained professionals.
▪
The system must be powered down prior to wiring.
▪
Please observe the relevant guidelines on the installation of electrical systems and facilities.
▪
The system may only be commissioned once all necessary connections have been made.
2
Basic configuration
The cabinet control system may only be connected to the power supply after all wiring operations have been
completed and the DIP switch has been set accordingly.
2.1
Installation and wiring
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All connectors are provided with coding in o rder to prevent incorrect wiring.
▪
Connect the sensors to the corresponding connectors.
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Insert the cable of the expansion valve, if present, into the corresponding connector.
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Connect the pressure switches for low pressure and high pressure. Important! The pressure switches
must not have been tripped, because otherwise the compressor cannot be started.
▪
Connect 230V electrical loads. Observe the maximum permissible currents:
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Set the DIP switches for Modbus communication.
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Connect the 230V power supply.
2.2
Commissioning
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Only turn the system on after it has been wired completely and the DIP switch has been set.
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Set the configuration parameters using the Modbus interface.
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The cabinet control system can be tested using the Modbus interface. For more information, please
consult the Modbus documentation.
▪
Start the system and check the operating conditions.
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