MAMAC Systems PR-275-R3-VDC Pressure Sensor 321042-401 Common indicators include localized grinding

Common indicators include localized grinding noises

the 10J42 is calibrated specifically for the capacitance and voltage requirements of Lennox compressors

For natural gas applications

Variable Speed Control: Maintains precise airflow to optimize latent and sensible heat removal

the 80W52 is the official Lennox service replacement part for the 103247-04 pressure switch

MAMAC Systems PR-275-R3-VDC Pressure Sensor 321042-401 Common indicators include localized grindingFor high precision air pressure monitoring, the MAMAC Systems PR 275 R3 VDC is a versatile low pressure sensor engineered with glass on silicon (Gl Si) capacitance technology. This veteran grade differential pressure transducer provides superior stability by addressing common field issues like zero drift and calibration shift. It offers six field selectable pressure rangesincluding 0 5"wc, 0 2. 5"wc, 0 1. 25"wc, and compound ranges like 2. 5" to 2.