Johnson Controls P-3800-2 Controller 30067439-890 such as the FRHS series

such as the FRHS series

reducing unnecessary service calls for minor temperature fluctuations

ensuring a restricted air-side pressure drop and maintaining system static pressure

Integrating this thermal limit switch restores the factory-spec sequence of operations

Johnson Controls P-3800-2 Controller 30067439-890 such as the FRHS seriesThe Johnson Controls P 3800 2 is a professional grade Reset Volume Controller engineered for precise airflow regulation in Variable Air Volume (VAV) systems. Designed as a pressure independent submaster device, it maintains accurate volume control between adjustable minimum and maximum setpoints in response to a thermostat or master controller signal. This unit supports a 13 25 PSIG supply pressure range and operates with a primary input capacity to