This board is the direct successor to legacy models

though they are equally effective for coil temperature and discharge air monitoring

Also referenced under Lennox 604235-01

Direct Compatibility: Built for use with HVAC mixing tubes to ensure the thermistor is protected while sampling a consistent airflow cross-section

Smith heating units

Armstrong Fluid Technology 182212-843 Pump Refrigerant This board is the directThe Armstrong Fluid Technology 182212 843 Pump is a high performance E14. 2 CI 120V Circulator designed for efficient fluid movement in hydronic heating and cooling systems. Built with a 2 5HP, single phase motor operating at 3300 RPM, this cast iron circulator pump delivers a maximum flow of 52 GPM and up to 61 feet of head. As part of the advanced ARMflo E. 2 Series, it features a maintenance free design with permanently lubricated bearings and a