Schneider Electric (Barber Colman) TK-4001 Temp Control
The Schneider Electric (Barber Colman) TK-4001 is a high-performance pneumatic bulb thermostat designed for proportional temperature control on reheat systems, return air terminal units, and sampling chambers. Engineered for heating applications, this direct acting controller features a 1/8" x 48" averaging bulb that ensures accurate thermal sensing across wide duct spans. With a factory-set 15 psig supply air pressure and a 60-90°F operating range, the TK-4001 provides the reliability veteran HVAC technicians expect from the Barber Colman legacy. The device utilizes a balanced lever system and liquid-filled sensing element to modulate pneumatic valves and dampers with precision. The throttling range is fully adjustable from 2-10°F, allowing contractors to fine-tune branch line pressure (typically 8 psig at setpoint) to match specific HVACR system loads. Built for longevity, the unit includes a rugged case rated for a 140°F safe temperature and supports field changeable action for diverse installation requirements.
Key Benefits:- Precision Sensing: The 4-foot averaging bulb eliminates hot or cold spots in the air stream, providing superior proportional control.
- Flexible Calibration: Adjustable throttling range permits custom sensitivity settings for complex pneumatic control loops.
- Field Adaptable: While factory-set as direct acting, the internal lever system can be modified for reverse acting operation in the field.
- Contractor Grade: Standard 1/8" NPT air connections and top mounting holes ensure seamless integration into existing Schneider Electric or legacy Barber Colman footprints.
- Can this unit be used for cooling? The TK-4001 is primarily a heating thermostat, but it can be field-changed to reverse acting if the application requires an increase in output on temperature drop.
- What is the maximum air pressure? The device handles up to 30 psig, though standard supply air pressure is typically maintained at 15 or 20 psig for optimal AEO performance.
- Is the bulb compatible with wells? Yes, the 1/8" diameter capillary can be used with standard AT-series bulb wells for liquid line or tank monitoring.
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.
Schneider Electric (Barber Colman) TK-4001 Temp Control
The Schneider Electric (Barber Colman) TK-4001 is a high-performance pneumatic bulb thermostat designed for proportional temperature control on reheat systems, return air terminal units, and sampling chambers. Engineered for heating applications, this direct acting controller features a 1/8" x 48" averaging bulb that ensures accurate thermal sensing across wide duct spans. With a factory-set 15 psig supply air pressure and a 60-90°F operating range, the TK-4001 provides the reliability veteran HVAC technicians expect from the Barber Colman legacy. The device utilizes a balanced lever system and liquid-filled sensing element to modulate pneumatic valves and dampers with precision. The throttling range is fully adjustable from 2-10°F, allowing contractors to fine-tune branch line pressure (typically 8 psig at setpoint) to match specific HVACR system loads. Built for longevity, the unit includes a rugged case rated for a 140°F safe temperature and supports field changeable action for diverse installation requirements.
Key Benefits:- Precision Sensing: The 4-foot averaging bulb eliminates hot or cold spots in the air stream, providing superior proportional control.
- Flexible Calibration: Adjustable throttling range permits custom sensitivity settings for complex pneumatic control loops.
- Field Adaptable: While factory-set as direct acting, the internal lever system can be modified for reverse acting operation in the field.
- Contractor Grade: Standard 1/8" NPT air connections and top mounting holes ensure seamless integration into existing Schneider Electric or legacy Barber Colman footprints.
- Can this unit be used for cooling? The TK-4001 is primarily a heating thermostat, but it can be field-changed to reverse acting if the application requires an increase in output on temperature drop.
- What is the maximum air pressure? The device handles up to 30 psig, though standard supply air pressure is typically maintained at 15 or 20 psig for optimal AEO performance.
- Is the bulb compatible with wells? Yes, the 1/8" diameter capillary can be used with standard AT-series bulb wells for liquid line or tank monitoring.
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 Schneider Electric (Barber Colman) TK-4001 is a high-performance pneumatic bulb thermostat designed for proportional temperature control on reheat systems, return air terminal units, and sampling chambers. Engineered for heating applications, this direct acting controller features a 1/8" x 48" averaging bulb that ensures accurate thermal sensing across wide duct spans. With a factory-set 15 psig supply air pressure and a 60-90°F operating range, the TK-4001 provides the reliability veteran HVAC technicians expect from the Barber Colman legacy. The device utilizes a balanced lever system and liquid-filled sensing element to modulate pneumatic valves and dampers with precision. The throttling range is fully adjustable from 2-10°F, allowing contractors to fine-tune branch line pressure (typically 8 psig at setpoint) to match specific HVACR system loads. Built for longevity, the unit includes a rugged case rated for a 140°F safe temperature and supports field changeable action for diverse installation requirements.
Key Benefits:- Precision Sensing: The 4-foot averaging bulb eliminates hot or cold spots in the air stream, providing superior proportional control.
- Flexible Calibration: Adjustable throttling range permits custom sensitivity settings for complex pneumatic control loops.
- Field Adaptable: While factory-set as direct acting, the internal lever system can be modified for reverse acting operation in the field.
- Contractor Grade: Standard 1/8" NPT air connections and top mounting holes ensure seamless integration into existing Schneider Electric or legacy Barber Colman footprints.
- Can this unit be used for cooling? The TK-4001 is primarily a heating thermostat, but it can be field-changed to reverse acting if the application requires an increase in output on temperature drop.
- What is the maximum air pressure? The device handles up to 30 psig, though standard supply air pressure is typically maintained at 15 or 20 psig for optimal AEO performance.
- Is the bulb compatible with wells? Yes, the 1/8" diameter capillary can be used with standard AT-series bulb wells for liquid line or tank monitoring.
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.
