the SPDT switching logic allows for the management of compressor bypass and evaporator fan delay

providing precise directional heat for rapid and reliable main burner ignition

it is the correct replacement for many Intertherm and Miller branded HVAC systems

it requires a technician to physically inspect the heat exchanger and venting for blockages or cracks before the system can be restarted

Johnson Controls P72CA-4 Pressure Control R-410A the SPDT switching logic allowsJohnson Controls P72CA 4 Pressure Control, DPST Switch Only, 3 4" Conduit Opening, 20" to 100 Psi, Nema 1 Enclosure, No Adjustment Knob, 1 4" FNPT Connection P72CA 4 is identical to P72CA 4C