The VA Series controllers support external rotor motor fans by maintaining adequate motor cooling at reduced speeds. In addition, the VA500B-POT model includes a 500K potentiometer that lets you accurately adjust the minimum fan speed. Consequently, it delivers stable performance across a wide range of applications.
Installation and Operation
Install this potentiometer-type controller inside equipment enclosures rather than on a wall plate. A wiring diagram is included to simplify installation. Furthermore, when controlling multiple fans, use fans of the same type and capacity. Keep the combined load below 85% of the controller’s full load current (FLC) rating to ensure reliable operation.
Key Features
- Infinite speed control: Adjust fan speed from 30% to 100% of full speed
- 500K potentiometer: Fine-tune the minimum fan speed
- High compatibility: Controls single-phase motors up to 2 amps
- Enhanced cooling: Maintains safe motor operation at lower speeds
- Compact design: Fits neatly inside fan or equipment enclosures
- Fantech quality: Delivers reliable performance with long-lasting electronics
Applications
The VA500B-POT 500K Potentiometer suits HVAC systems, ventilation units, and air movement equipment that require adjustable airflow. It is also ideal for fan coils, inline fans, and extraction systems. As a result, it provides precise airflow control while helping reduce operating noise.
