The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2011 Johnson Controls, Inc. www.johnsoncontrols.com 1 of 1 P-3800 Reset Volume Controller Description The P-3800 Reset Volume Controller regulates the flow of air in Variable Air Volume (VAV) boxes. The P-3800 controls the output volume, between adjustable minimum and maximum limits, in response to a reset signal from a thermostat or some other master controller. The P-3800 is available in two models. Refer to P-3800 Reset Volume Controller Product Bulletin (LIT-7171270) for important product information. Repair Information If the P-3800 Reset Volume Controller fails to operate within its specifications, replace the unit. For a replacement controller, contact the nearest JohnsonControls® representative. Selection Charts P-3800 Reset Volume Controller Code Number Description ThermostatConfiguration P-3800-1Direct Acting DADR Reverse Acting RARR P-3800-2Reverse Acting DARR Direct ActingRADR P-3800 Accessories/Maintenance Parts Code Number Description A-4000-1037Inline Air Supply Filter (Recommended for Heavily Contaminated Air Supply Systems) F-300 SeriesStraight Couplers F-1000 SeriesSealing Caps P-3800-600Replacement Filter/Orifice Assembly Code No. LIT-1921730 Issued January 15, 2008 P-3800 Reset Volume Controller Features •fully adjustable - reset start point - reset range - minimum and maximum flow set points •provides controllable flow down to 0.01 in. WG velocity pressure •reset range adjustable 0.15 to 1.6 in. WG •isolated diaphragm design accepts any sensing line •fits most competitors’ mounting brackets •provided with barbed fittings on all ports •includes a replaceable filter/orifice assembly •constant reset spanNext >