Inverter Compressor to Standard (On/Off) Compressor Conversion Board

The most practical and economical solution for service companies against inverter main board and inverter compressor failures, which are common in refrigerators and refrigeration systems and are costly or difficult to source. This conversion board bypasses the faulty inverter system and allows you to fit a much lower-cost standard (on/off) 220V compressor to the appliance.

Key Technical Features and Field Advantages

• Avoids High Costs: Saves the customer from an expensive original inverter board or compressor replacement, letting you complete the repair with standard fixed-speed compressors that are easy to find on the market.
• Reliable Switching: Thanks to its durable 7A 250VAC relay, it handles the starting (inrush) and continuous running currents of standard refrigerator compressors without problems.
• Easy, Fast Installation: Thanks to its screw-terminal inputs and outputs (green terminal blocks), you can make the connections within minutes in the field by tightening the wire ends, without soldering.
• Compact Design: Thanks to its small size (PCB design), it can easily be hidden and fixed inside the refrigerator's compressor compartment or electronics box.

Technician Tips and Connection Warnings

• This board reads the low-voltage signal command (or the operating voltage) sent from the main board to the compressor, energizes its relay and switches the live supply to the standard 220V compressor you fit to the system. When making the connections, make sure the trigger input wires and the 220V output wires go into the correct terminals.
• When removing the inverter compressor and fitting a standard compressor, make sure the cooling capacity (BTU/kcal) of the new compressor matches the capacity of the original compressor at maximum speed.
• To extend the life of the relay contacts and ensure safe operation, always fully connect the overload protector and relay set of the new standard compressor.