What is an air conditioning actuator?
It is the job of the AC actuator to control the opening and closing of the airflow in response to the thermostat, thus controlling air movement and allowing cool air to blow down the ducts and into the house. The AC actuator is located above or below the coil. It can be set to either single speed or variable speed.
How does a double acting pneumatic valve actuator work?
Air is forced into this chamber on either side of the vane in order to move it, thus rotating the stem drive. Double acting pneumatic actuators require air to be used to move the piston in either direction. A solenoid valve is used to control the air flow into and venting of the actuator.
Where is the AC actuator on an AC unit?
The AC actuator moves air distribution doors to two or more positions to direct air flow for heating and A/C vents. The AC actuator is located underneath the dashboard attached to air distribution doors in the hvac box.
When to use a solenoid or double acting actuator?
Double acting pneumatic actuators require air to be used to move the piston in either direction. A solenoid valve is used to control the air flow into and venting of the actuator. Since there is no spring force to overcome, a smaller actuator can often be used.
What are the actuators on an air door?
Two wire actuators create electrical pulses when the commutator rotates across the brushes of the motor. The HVAC control head, which has pre-programmed logic and actuator end point references, counts the electrical pulses as the motor moves the door through its sweep from one end to the other end.
Air is forced into this chamber on either side of the vane in order to move it, thus rotating the stem drive. Double acting pneumatic actuators require air to be used to move the piston in either direction. A solenoid valve is used to control the air flow into and venting of the actuator.
What is the purpose of a control valve actuator?
The purpose of a control valve actuator is to provide the motive force to operate a valve mechanism. Both sliding-stem and rotary control valves enjoy the same selection of actuators: pneumatic, hydraulic, electric motor, and hand (manual).
The AC actuator moves air distribution doors to two or more positions to direct air flow for heating and A/C vents. The AC actuator is located underneath the dashboard attached to air distribution doors in the hvac box.
Double acting pneumatic actuators require air to be used to move the piston in either direction. A solenoid valve is used to control the air flow into and venting of the actuator. Since there is no spring force to overcome, a smaller actuator can often be used.