Peerless Boiler 54156 System Sensor 320788-704 this unit is designed with

this unit is designed with reversible rotation capabilities to accommodate both clockwise and counter-clockwise blower orientations

you must install two driers with check valves or a dedicated DCL series bi-flow drier

Rugged Construction: Built with a NEMA 1 steel enclosure and a 6-foot copper capillary for longevity in mechanical rooms

For service technicians performing HVAC system diagnostics or emergency AC repair

High Performance: Optimized for R-410A refrigerant

Peerless Boiler 54156 System Sensor 320788-704 this unit is designed withThe Peerless Boiler 54156 is a 12K ohm temperature sensor used in hydronic boiler systems to provide accurate resistance based temperature feedback to the control board. This allows the boiler to properly regulate water temperature, adjust firing rate, and maintain stable heating performance. When this sensor begins to drift or fail, common symptoms include short cycling, inconsistent heat output, ignition issues, or system lockouts. This component is