making it a standard choice for R410A heat pump systems where bi-flow refrigerant capability is required

Replacing the sensor restores the proper defrost and heating/cooling logic

the inner gas filter insert should be inspected regularly and replaced to prevent excessive pressure drop across the system

it is an essential HVAC temperature controller that prevents mechanical strain by automatically cycling equipment when thresholds are met

while the HC charge ensures stable superheat control across a wide range of operating conditions

Johnson Controls P74DA-10 Pressure Control Els PW 17895 making it a standard choiceDifferential Pressure Control, DPST, Close on Pressure Increase, 8 Psi to 70 Psi, 7 Psi to 30 Psi Adjustable Differential, 1 4" Npt Connection