Common Questions for HVAC Professionals Is the P81100 compatible with single-phase power

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

eliminating the need for periodic blowdowns

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

leak-resistant installation on iron pipe size (IPS) systems

Johnson Controls P74DA-10 Pressure Control Els PW 17895 Common Questions for HVAC ProfessionalsDifferential Pressure Control, DPST, Close on Pressure Increase, 8 Psi to 70 Psi, 7 Psi to 30 Psi Adjustable Differential, 1 4" Npt Connection