Delivers consistent 70W heat output to ensure startup reliability in cold ambient conditions

it is also rated for 1 HP at 120V AC and 2 HP at 277V AC

Whether you are performing a TXV orifice replacement or a new system HVAC expansion valve sizing

Is this service valve compatible with R-410A systems

Precision 24V Control: The 24-volt coil ensures reliable engagement even during slight voltage fluctuations in the control transformer

Allanson Transformers 421-BT290 Transformer Els PW 17895 Delivers consistent 70W heat outputThe Allanson 421 BT290 is a heavy duty universal ignition transformer engineered for high performance oil burner service and replacement applications. Operating on a 120Vac supply voltage, this unit delivers a consistent 10,000Vac secondary voltage at 23mA, ensuring reliable arc initiation even in demanding environments. Designed with a mid point ground and a durable internal junction box, it simplifies field wiring while maintaining electrical