Dwyer Instruments 1638-5 Pressure Switch 328140-751 the switch is factory-calibrated to

the switch is factory-calibrated to energize the fan motor when liquid line pressure reaches 360 +/-10 PSIG and cut power when pressure drops below 240 +/-10 PSIG

As a veteran-preferred furnace gas valve replacement

delivering a cooling capacity of 14

providing specific flow rates required for R-410A efficiency and balanced pressure regulation

the specific 450/240 PSI setpoints are crucial for the safety logic of Lennox controllers

Dwyer Instruments 1638-5 Pressure Switch 328140-751 the switch is factory-calibrated toFor high precision air pressure monitoring in commercial HVAC and industrial process control, the Dwyer Instruments 1638 5 Pressure Switch is the technician's standard for reliability. Engineering with a large diaphragm design, this unit provides superior sensitivity for detecting differential pressure within a range of 2. 0 to 6. 0" w. c. The 1630 series is purpose built for clean air and non combustible gases, utilizing a silicone rubber diaphragm