Lochinvar & A.O. Smith 100110783 Pressure Switch 340155-7026 The Amana-Goodman B1256554 Heat Sequencer

The Amana-Goodman B1256554 Heat Sequencer is a critical multi-stack control engineered for 20kW electric heat kits in Goodman

This defrost control kit manages the timing and temperature-based termination of the defrost cycle

Enhanced Thermal Regulation: Manufactured with high-temperature wire and porcelain insulators to extend the service life of internal components

Universal Compatibility: Serves as the standard replacement for all ZoneFirst plug-in dampers using 12V DC power architecture

Lochinvar & A.O. Smith 100110783 Pressure Switch 340155-7026 The Amana-Goodman B1256554 Heat SequencerThe Lochinvar & A. O. Smith 100110783 Pressure Switch is a critical safety component engineered for high efficiency commercial and residential boilers and water heating systems. As a blocked inlet pressure switch, this OEM replacement part is calibrated to monitor airflow and combustion exhaust conditions. If the venting system becomes obstructed or the inducer motor fails to maintain the required pressure differential, this switch breaks the