
Greenheck 385031 Control
The Greenheck 385031 is a commercial-grade 6AMP 120V speed control designed for precise manual adjustment of permanent split capacitor (PSC) and shaded??? motor types. This solid state fan speed controller is a direct replacement part used extensively in Greenheck SQ centrifugal square inline fans and common sidewall power roof ventilators. Engineered to prevent electromagnetic interference and motor hum, this potentiometer speed dial allows for a wide range of modulation, enabling technicians to balance airflow requirements and reduce energy consumption at the point of operation. Rated for 6 amps at 115/120V AC, the controller features a single-pole, single-throw (SPST) switch integrated into the rotary knob for a crisp "on/off" tactile response. Its compact, brushed aluminum faceplate ensures heat dissipation during continuous operation, while the internal RFI filter minimizes noise feedback across the electrical system. For contractors performing system maintenance or airflow tuning, the Greenheck 385031 speed controller provides a reliable, field-tested solution for maintaining static pressure and operational efficiency.
- Universal PSC Compatibility: Optimized for Greenheck SQ and SP fan series utilizing fractional horsepower motors.
- Variable Speed Range: Allows for infinite adjustment between minimum and maximum RPM to meet specific CFM requirements.
- Heavy-Duty Construction: Rated for a 6.0 amp load to ensure longevity under high-torque startup conditions.
- Simplified Installation: Standard 2-wire series connection fits standard electrical gang boxes for rapid field integration.
Common Technical Questions
Can I use this 6-amp controller on any 120V fan?
This controller is specifically designed for PSC and shaded pole motors. It should not be used with brushless DC motors or capacitor-start motors with centrifugal switches, as this may result in motor failure or overheating.
What should I do if the motor hums at low speeds?
Adjust the internal trim potentiometer to set the minimum operating voltage. Ensuring the motor stays within its designed RPM range prevents stalling and excessive harmonic resonance during operation.
Is this a direct replacement for Greenheck 385031?
Yes, this is the factory-authorized 6AMP 120V speed control used in numerous Greenheck fan assemblies, ensuring identical mounting footprints and electrical characteristics.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Greenheck 385031 Control
The Greenheck 385031 is a commercial-grade 6AMP 120V speed control designed for precise manual adjustment of permanent split capacitor (PSC) and shaded??? motor types. This solid state fan speed controller is a direct replacement part used extensively in Greenheck SQ centrifugal square inline fans and common sidewall power roof ventilators. Engineered to prevent electromagnetic interference and motor hum, this potentiometer speed dial allows for a wide range of modulation, enabling technicians to balance airflow requirements and reduce energy consumption at the point of operation. Rated for 6 amps at 115/120V AC, the controller features a single-pole, single-throw (SPST) switch integrated into the rotary knob for a crisp "on/off" tactile response. Its compact, brushed aluminum faceplate ensures heat dissipation during continuous operation, while the internal RFI filter minimizes noise feedback across the electrical system. For contractors performing system maintenance or airflow tuning, the Greenheck 385031 speed controller provides a reliable, field-tested solution for maintaining static pressure and operational efficiency.
- Universal PSC Compatibility: Optimized for Greenheck SQ and SP fan series utilizing fractional horsepower motors.
- Variable Speed Range: Allows for infinite adjustment between minimum and maximum RPM to meet specific CFM requirements.
- Heavy-Duty Construction: Rated for a 6.0 amp load to ensure longevity under high-torque startup conditions.
- Simplified Installation: Standard 2-wire series connection fits standard electrical gang boxes for rapid field integration.
Common Technical Questions
Can I use this 6-amp controller on any 120V fan?
This controller is specifically designed for PSC and shaded pole motors. It should not be used with brushless DC motors or capacitor-start motors with centrifugal switches, as this may result in motor failure or overheating.
What should I do if the motor hums at low speeds?
Adjust the internal trim potentiometer to set the minimum operating voltage. Ensuring the motor stays within its designed RPM range prevents stalling and excessive harmonic resonance during operation.
Is this a direct replacement for Greenheck 385031?
Yes, this is the factory-authorized 6AMP 120V speed control used in numerous Greenheck fan assemblies, ensuring identical mounting footprints and electrical characteristics.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Greenheck 385031 is a commercial-grade 6AMP 120V speed control designed for precise manual adjustment of permanent split capacitor (PSC) and shaded??? motor types. This solid state fan speed controller is a direct replacement part used extensively in Greenheck SQ centrifugal square inline fans and common sidewall power roof ventilators. Engineered to prevent electromagnetic interference and motor hum, this potentiometer speed dial allows for a wide range of modulation, enabling technicians to balance airflow requirements and reduce energy consumption at the point of operation. Rated for 6 amps at 115/120V AC, the controller features a single-pole, single-throw (SPST) switch integrated into the rotary knob for a crisp "on/off" tactile response. Its compact, brushed aluminum faceplate ensures heat dissipation during continuous operation, while the internal RFI filter minimizes noise feedback across the electrical system. For contractors performing system maintenance or airflow tuning, the Greenheck 385031 speed controller provides a reliable, field-tested solution for maintaining static pressure and operational efficiency.
- Universal PSC Compatibility: Optimized for Greenheck SQ and SP fan series utilizing fractional horsepower motors.
- Variable Speed Range: Allows for infinite adjustment between minimum and maximum RPM to meet specific CFM requirements.
- Heavy-Duty Construction: Rated for a 6.0 amp load to ensure longevity under high-torque startup conditions.
- Simplified Installation: Standard 2-wire series connection fits standard electrical gang boxes for rapid field integration.
Common Technical Questions
Can I use this 6-amp controller on any 120V fan?
This controller is specifically designed for PSC and shaded pole motors. It should not be used with brushless DC motors or capacitor-start motors with centrifugal switches, as this may result in motor failure or overheating.
What should I do if the motor hums at low speeds?
Adjust the internal trim potentiometer to set the minimum operating voltage. Ensuring the motor stays within its designed RPM range prevents stalling and excessive harmonic resonance during operation.
Is this a direct replacement for Greenheck 385031?
Yes, this is the factory-authorized 6AMP 120V speed control used in numerous Greenheck fan assemblies, ensuring identical mounting footprints and electrical characteristics.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












