24V 0-10VDC PROPORTIONAL ACTUATOR S
The Johnson Controls VA7820-HGA 24V 0-10VDC Proportional Actuator S is a product designed to satisfy even the most demanding of customer requirements.
The Johnson Controls 2133951 is a non-return valve actuator that controls the solenoid damper function for a gas furnace. This Johnson Controls 24V 0-10VDC proportional control regulator has a 24 VDC input and a 0-10 VDC adjustable output current to maintain a predetermined flow rate within a wire mesh or other gas control assembly. The 2133951 contains a manual test wire, which makes it easy to test the control from all positions by connecting to power and measuring the output current.
The VA7820-HGA is a 0 to 10VDC output proportional actuator with position indicator. It is designed for use with our Valves line of detection products, MVX1031-MV, MVX1033-MV, MVX1035-MV, MVX102T4-MV, MVX1031-DA1, and MVX1033-DA1.
A proportional, 0-10V actuator with an integral thermostatic controller in a single unit. This module is designed for use in bathroom and kitchen exhaust fan applications in accordance with the latest ASHRAE construction and energy codes.
The VA7820-HGA is a 24Vdc proportional actuator with 2-wire current loop interface, isolated supply, 2 position hookswitch, external manual reset switch and high level/low level limit adjustments. The value of the output is proportional to applied voltage. A separate manual reset switch can be used to momentarily turn off power in case of emergency. The controller senses the actuator position over an 11-zone grid to ensure accurate linear control during position movement. The guard mechanism protects the actuator from possible damage when operated at reverse direction. The device is suitable for use in applications where accurate position control within a
Actuator, 0 to 10 VDC, 24 VAC
The VA7820-HGA is the right choice for places where only installation of a directly proportional actuator is allowed. It is used in many hundreds of applications around the world where the control system must always control the actuator exactly to some position, or some position within an allowed range, or some position within a limited deflected angle.
The VA7820-HGA range of standard proportional actuators enable precise control of heated doors, windows and other enclosures in residential, commercial or industrial applications. A built-in heater enables heat to be applied to the door earlier in the operating cycle, increasing the comfort provided by the system.
The VA7820-HGA is a 24 Vdc field mountable valve controller with proportional control and current output capability. It is designed for use in Johnson Controls' intrinsically safe low voltage fluid systems, including flow and temperature monitoring and control, with an overall system maximum voltage of 100V dc.
NO. OF POSITIONS, 3
Specifications:
The VA7820-HGA prop valve is a current-mode, current-control, power-assisted positioner designed for proportioning and control of flows, pressure and tank levels. It operates over a wide flow range and torque capacity. The VA7820-HGA is suitable for low voltage proportional positioning applications such as those found in refrigeration and air conditioning plants as well as renewable energy plants such as solar or wind.
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