a sticking Raypak 062234B Unitherm Governor is a primary suspect

It is commonly used for commercial ventilation

and Johnson Controls equipment

the AAEB series offers a stainless steel power element that resists corrosion and extends the service life of the refrigerant metering device

verifying the MFD requirements on the motor nameplate is essential before installation

Allanson Transformers 2721-368M Transformer Els PW 17895 a sticking Raypak 062234B UnithermThe Allanson Transformers 2721 368M is a specialized ferromagnetic ignition transformer engineered specifically for Metro burner applications. Operating on a 120Vac supply voltage, this small can series unit delivers a powerful 10,000Vac secondary voltage at 23mA, ensuring consistent and reliable arc performance for oil heating systems. Its midpoint ground design facilitates stable ignition, while the zinc plated button HV terminals and end hinge