Profroid QC LT, Operating Instructions Manual

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ELECTRICAL CONNECTIONS
24
Recommendation
In order to ensure the optimal operation of the installation, we recommend the use of controller and expansion
valves from Carel connected to the unit through a Modbus connection. When using other brands of controller or
expansion valve, a special attention must be paid on the settings on site. Bad settings of these components can
lead to an instability of the system, short cycling the compressor and oil return issue, endangering the condensing
unit operation.
To avoid any overloading of the compressors, it is necessary to set a MOP (Maximum Operating Pressure) of
0°C (34,8 Bar) for MT application and a MOP of -20°C (19,7) Bar for LT applications.