This replacement control board (Cross Ref: 208R19) is built for long-term reliability in demanding residential and light commercial air handling applications where maintaining optimized airflow control is paramount for environmental stability and technician-level tuning

this air vent is designed to function in hydronic systems utilizing standard antifreeze concentrations

This operator is designed specifically for the RA 2000 series (RA connection)

Can this be used on a 120V or 208V primary circuit

Johnson Controls P72DA-1 Pressure Control Freon This replacement control board (CrossTwo Pole High Pressure Control, DPST, Open High Close Low, 50 Psi to 450 Psi, Lockout ( Requires Manual Reset ) Differential, 36" Capillary with 1 4" Flare Nut, 525 Psi Max Bellows Overpressure, Includes Universal Mounting Bracket, "All Range" for R 12, R 22, R 134A, R 500 and R 502