Cofi Ignition transformer TRK1-20CUVD

The Cofi TRK1-20CUVD is an ignition transformer designed for gas and diesel burners, as well as equipment using light or heavy liquid fuel. It operates on a supply voltage of 120 V and is energized only during the ignition phase. The transformer has compact dimensions of 83x62x38 mm and is manufactured in Italy. Its secondary insulation is insulated, and it is intended for use with gas and diesel fuel types.

When selecting an ignition transformer of this type, verify the primary voltage (e.g., 120 V, 230 V, or 24 V) and the secondary voltage and current output to match the burner's requirements. The duty cycle must be suitable for brief, repeated energization during ignition. Mounting type, terminal configuration, and cable connector pattern must match the existing installation. Always inspect the ignition cable and electrode assembly for damage, as a faulty cable can mimic a transformer issue.

Typical failures of ignition transformers include internal short circuits, open windings, or insulation breakdown, leading to weak or no spark. Symptoms on the equipment include burner ignition failure, repeated lockouts, or intermittent operation. Check the transformer's primary and secondary voltages, inspect for visible damage or overheating, and test the ignition cable and electrode gap to isolate the fault.