Control System

Control Panels

Blue Cold panels are designed & customized to perfection and specialty for cold rooms & cold storage. These panels are manufactured to European standard and are CE certified.

Applications: Chiller Room, Freezer Room, Blast Freezer and Chiller, Walkin Cold Room
Defrosting: Air, Water & Electrical
CE marked units to supply in Europe, Middle East & Asia
Controlled circuit
Power supply safety protection
Motor protection fans & contractors for compressors
Overload protection for compressor
Oil differential pressure control
Refrigerant HP/LP control
Electronic controller

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How to check control system before starting of cold room

Set the multi meter to voltage and check L V M common supply with neutral, if it shows voltage, we have to check N O supply. If there is voltage on N O, then our L V M is ok otherwise change the R Y B sequence.
Then we check supply in LP / HP inlet, if it’s showing voltage, we have to check LP / HP outlet. If voltage is there on output too, so our HP / LP switch is ok otherwise check both the suction and discharge pressures.
Then we check compressor overload inlet number 95. If it’s showing voltage, check the overload output number 96. If voltage is there on output too, so our compressor overload is ok. Otherwise reset the overload.
Then we have to check the controller supply. If supply is there and not showing readings on display, so check the controller display.