Cofi Ignition transformer TRE820PISO

The Cofi TRE820PISO is an ignition transformer designed for gas and diesel burners, boiler equipment, and industrial thermal installations. It operates on a 230 V supply at 50 Hz and provides a high-voltage pulse for stable spark formation during the ignition phase. This model features an insulated design for enhanced operational safety and is built for intensive use in heating systems and industrial furnaces. Its compact housing facilitates straightforward installation and replacement.

When selecting a replacement ignition transformer of this type, verify that the primary voltage (commonly 230 V, but also 110 V or 24 V) matches the existing unit. Check the secondary voltage and current, duty cycle, mounting pattern, terminal arrangement, and cable connector shape. Ensure the ignition cables are silicone-insulated and in good condition, as hardened or cracked cables can cause spark leakage. No further compatibility data is available for this specific article.

Ignition transformers of this kind can fail due to cracked or hardened ignition cables, which may leak the spark to earth, appearing as a transformer fault. Other failure modes include internal short circuits or open windings, leading to no spark at the electrode. Symptoms on the equipment include failure to ignite, intermittent ignition, or the burner control locking out. Check the transformer's primary voltage and connector pattern, and inspect the ignition cables for damage before replacing the unit.