Johnson Controls P-3800-2 Controller Refrigerant Always verify the vacuum pressure

Always verify the vacuum pressure with a manometer before replacing the switch

This switch is frequently utilized in 3-ton to 5-ton rooftop and packaged units

0 Cv rating provides stable modulating performance for balanced hydronic distribution

25-inch diameter fan blade is designed with a 0

It is standard plumbing practice to install a thermal expansion tank on the water heater line to manage pressure increases and protect the dual check internal components

Johnson Controls P-3800-2 Controller Refrigerant Always verify the vacuum pressureThe 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