Hoffman Controls 706-123SC Control
The Hoffman Controls 706-123SC is a heavy-duty 15-amp fan speed control designed for precise regulation of single-phase motors. This versatile electrical assembly supports a wide voltage range from 120V to 277V, making it a go-to choice for contractors working on both commercial and industrial HVACR systems. Built for compatibility with Permanent Split Capacitor (PSC) and shaded pole motors, the 706-123SC utilizes phase proportioning to provide manually adjustable, proportional speed control. This allows for optimal airflow management and head pressure regulation without the need for complex rewiring. The unit is engineered for direct-connected propeller blades or centrifugal blower applications, though it is robust enough for non-air moving motor drive requirements like pumps. For field reliability, it features a field-adjustable minimum speed limit to prevent motor stall at lower RPMs. Its electronic heat sink design ensures the internal components remain condensation-free within an operating environment of 0? to 60? C.
Key Benefits
- Universal Voltage Capacity: Operates seamlessly between 120V and 277V, reducing the need to stock multiple SKUs for different job sites.
- High Amperage Support: Rated for up to 15 Amps (FLA), providing the necessary headroom for larger single-phase fans and blowers.
- Stall Prevention: Includes an integrated potentiometer for setting the minimum speed limit, ensuring the motor maintains enough torque to prevent overheating.
- Broad Motor Compatibility: Specifically designed for shaded pole and PSC motor speed control, ensuring smooth operation across varying loads.
- Industrial Grade Build: Features a robust electronic assembly and heat sink for consistent performance in demanding HVACR environments.
Common Questions
What types of motors are compatible with the 706-123SC?
This controller is specifically designed for single-phase PSC and shaded pole motors that have been evaluated for speed regulation. It is not intended for use with three-phase or certain non-proportional induction motors.
How do I prevent motor humming or overheating at low speeds?
Technicians should adjust the field-adjustable minimum speed limit to approximately one-half of full speed. Always verify that the motor's temperature rise remains within safe limits at the lowest setting to accommodate non-sinusoidal wave shapes.
Can this unit be used for exhaust fan applications?
Yes, it is ideal for direct-connected propeller or squirrel cage fan type applications, common in exhaust and ventilation systems, provided the current does not exceed the 15A FLA rating.
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.
Hoffman Controls 706-123SC Control
The Hoffman Controls 706-123SC is a heavy-duty 15-amp fan speed control designed for precise regulation of single-phase motors. This versatile electrical assembly supports a wide voltage range from 120V to 277V, making it a go-to choice for contractors working on both commercial and industrial HVACR systems. Built for compatibility with Permanent Split Capacitor (PSC) and shaded pole motors, the 706-123SC utilizes phase proportioning to provide manually adjustable, proportional speed control. This allows for optimal airflow management and head pressure regulation without the need for complex rewiring. The unit is engineered for direct-connected propeller blades or centrifugal blower applications, though it is robust enough for non-air moving motor drive requirements like pumps. For field reliability, it features a field-adjustable minimum speed limit to prevent motor stall at lower RPMs. Its electronic heat sink design ensures the internal components remain condensation-free within an operating environment of 0? to 60? C.
Key Benefits
- Universal Voltage Capacity: Operates seamlessly between 120V and 277V, reducing the need to stock multiple SKUs for different job sites.
- High Amperage Support: Rated for up to 15 Amps (FLA), providing the necessary headroom for larger single-phase fans and blowers.
- Stall Prevention: Includes an integrated potentiometer for setting the minimum speed limit, ensuring the motor maintains enough torque to prevent overheating.
- Broad Motor Compatibility: Specifically designed for shaded pole and PSC motor speed control, ensuring smooth operation across varying loads.
- Industrial Grade Build: Features a robust electronic assembly and heat sink for consistent performance in demanding HVACR environments.
Common Questions
What types of motors are compatible with the 706-123SC?
This controller is specifically designed for single-phase PSC and shaded pole motors that have been evaluated for speed regulation. It is not intended for use with three-phase or certain non-proportional induction motors.
How do I prevent motor humming or overheating at low speeds?
Technicians should adjust the field-adjustable minimum speed limit to approximately one-half of full speed. Always verify that the motor's temperature rise remains within safe limits at the lowest setting to accommodate non-sinusoidal wave shapes.
Can this unit be used for exhaust fan applications?
Yes, it is ideal for direct-connected propeller or squirrel cage fan type applications, common in exhaust and ventilation systems, provided the current does not exceed the 15A FLA rating.
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 Hoffman Controls 706-123SC is a heavy-duty 15-amp fan speed control designed for precise regulation of single-phase motors. This versatile electrical assembly supports a wide voltage range from 120V to 277V, making it a go-to choice for contractors working on both commercial and industrial HVACR systems. Built for compatibility with Permanent Split Capacitor (PSC) and shaded pole motors, the 706-123SC utilizes phase proportioning to provide manually adjustable, proportional speed control. This allows for optimal airflow management and head pressure regulation without the need for complex rewiring. The unit is engineered for direct-connected propeller blades or centrifugal blower applications, though it is robust enough for non-air moving motor drive requirements like pumps. For field reliability, it features a field-adjustable minimum speed limit to prevent motor stall at lower RPMs. Its electronic heat sink design ensures the internal components remain condensation-free within an operating environment of 0? to 60? C.
Key Benefits
- Universal Voltage Capacity: Operates seamlessly between 120V and 277V, reducing the need to stock multiple SKUs for different job sites.
- High Amperage Support: Rated for up to 15 Amps (FLA), providing the necessary headroom for larger single-phase fans and blowers.
- Stall Prevention: Includes an integrated potentiometer for setting the minimum speed limit, ensuring the motor maintains enough torque to prevent overheating.
- Broad Motor Compatibility: Specifically designed for shaded pole and PSC motor speed control, ensuring smooth operation across varying loads.
- Industrial Grade Build: Features a robust electronic assembly and heat sink for consistent performance in demanding HVACR environments.
Common Questions
What types of motors are compatible with the 706-123SC?
This controller is specifically designed for single-phase PSC and shaded pole motors that have been evaluated for speed regulation. It is not intended for use with three-phase or certain non-proportional induction motors.
How do I prevent motor humming or overheating at low speeds?
Technicians should adjust the field-adjustable minimum speed limit to approximately one-half of full speed. Always verify that the motor's temperature rise remains within safe limits at the lowest setting to accommodate non-sinusoidal wave shapes.
Can this unit be used for exhaust fan applications?
Yes, it is ideal for direct-connected propeller or squirrel cage fan type applications, common in exhaust and ventilation systems, provided the current does not exceed the 15A FLA rating.
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.
