Johnson Controls P-3800-1 Reset Volume Controller with Direct Acting Thermostat [New]

Johnson Controls P-3800-1 Reset Volume Controller with Direct Acting Thermostat (8 PSIG) - The P-3800 Reset Volume Controller is a pressure independent, submaster device designed to regulate the flow of air in Variable Air Volume (VAV) boxes. The P-3800 controls the output volume, between adjustable minimum and maximum set points, in response to a reset signal from a thermostat or some other master controller. Two models of the P-3800 are available to satisfy all VAV/thermostat configurations, in both cooling and heating applications.. Johnson Controls. Johnson Controls. P-3800-1.