but serial number verification is recommended for 100% accuracy

Check the actuator housing for the model number

or the 632200R pressure switch has failed

the Nordyne 622140R is the official updated version of the 622140

Operating on a 208-277V AC input

Resideo TH115-A-240S-B Thermostat R-410A but serial number verification isThe Resideo TH115 A 240S B is a contractor grade 7 day programmable line voltage thermostat engineered specifically for high capacity 240 Vac electric heating systems. Designed for precise thermal management, this unit handles resistive loads up to 16. 7 Amps (4000W @ 240V), making it the standard choice for baseboard heaters, radiant ceilings, convectors, and fan forced heaters. The integration of an epoxy soundproofed relay ensures silent switching,