14-624-1, Rev. B Product Bulletin AV-8050 Issue Date July 2018 © 2018 Johnson Controls, Inc. 1 Part No. 14-624-1, Rev. B Code No. LIT-125700 AV-8050 Electric Valve Actuator Assemblies The AV-8050 is furnished with a synchronous, motor-driven actuator which provides floating control of valves with up to 3/4 in. stroke in heating, ventilating, and air conditioning applications. The compact, non-spring return actuator has a 50 lb. force requires a 3-wire, 24 VAC signal from the controller. Refer to VB Series valve bulletins for additional information. Operation A controller sends 24 VAC to the up or down terminal on the circuit board depending on the desired movement of the valve. This signal causes the motor to rotate in the proper direction, and through the lead screw and lever, move the valve up or down. When the controller stops sending a signal, the valve remains in place. When the controller closes the valve, a shutoff force will build up. When this force reaches 50 lbs., the lever activates a force sensor which stops the motor. Field calibration of the force sensor is not required. The actuator maintains the shutoff force even if power to the controller is lost. When the controller signals the valve to move in the opposite direction, the shutoff force will be reduced and the valve will modulate. Fig. 1 -- AV-8050-1005 Fig. 2 -- AV-8050-1014 Fig. 3 -- AV-8050-1 Specifications 2 AV-8050 Product Bulletin Wiring All wiring must be in accordance with applicable electrical code requirements. Input lines to the actuator must be wired correctly for the valve to move in the proper direction. Wiring is to a terminal strip labeled DWN (Down), COM (Common) and UP, respectively. Repair Information Field repairs must not be made. For a replacement AV-8050, contact the nearest Johnson Controls branch office. Application and Drawing Identification AV-8050 Product Bulletin 3 4 AV-8050 Product Bulletin AV-8050 Product Bulletin 5 Building Technologies & Solutions 507 E. Michigan Street Milwaukee, WI 53202 Printed in U.S.A. European Single Point of Contact: NA/SA Single Point of Contact: APAC Single Point of Contact: JOHNSON CONTROLS WESTENDHOF 3 45143 ESSEN GERMANY JOHNSON CONTROLS 507 E MICHIGAN ST MILWAUKEE WI 53202 USA JOHNSON CONTROLS C/O CONTROLS PRODUCT MANAGEMENT NO. 22 BLOCK D NEW DISTRICT WUXI JIANGSU PROVINCE 214142 CHINA Next >