Tekmar Controls 261 Control
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Tekmar Controls 261 Control

Tekmar Controls 261 Control

The Tekmar Controls 261 Control is a reliable, microprocessor-based 120Vac two-stage boiler control designed for precise outdoor reset or setpoint operation. High-performance hydronic systems rely on the 261 to manage boiler staging and equal run time rotation, ensuring balanced wear across multiple heat sources. By utilizing a characterized heating curve, this controller maintains a tight boiler target temperature based on real-time ambient conditions, effectively reducing short-cycling and optimizing fuel efficiency in condensing or non-condensing applications.

Contractors appreciate the PID logic and the powered boiler pump output, which simplifies 120V wiring for basic primary loops. With integrated warm weather shut down (WWSD) and night setback capabilities, the 261 provides advanced energy savings without sacrificing occupant comfort. Designed for versatile integration, it supports 24V to 240V demand signals, making it an ideal choice for mechanical contractors looking for a robust solution for fan coils, radiators, or high-mass radiant floors.

Key Benefits
  • Enhanced Efficiency: Uses outdoor temperature reset to adjust supply water, eliminating energy waste from overheating.
  • Balanced Equipment Usage: Features a fixed 48-hour equal run time rotation to extend the life of two-stage or multiple boiler setups.
  • Simplified Commissioning: Includes a Quick Setup menu and a comprehensive test sequence for standard component verification.
  • System Protection: Integrated boiler minimum settings prevent sustained flue gas condensation in legacy steel or copper-fin boilers.
  • Versatile Control: Manages up to two stages of heat or can be configured for dedicated setpoint control in commercial applications.
Common Questions

How do I resolve "OPN" or "OPEN" error codes on the 261?
An "OPEN" code typically indicates a break in the outdoor sensor or universal sensor circuit. Verify all terminal connections at the block and inspect the sensor wiring for mechanical damage or moisture intrusion.

Can the 261 rotate stages for a single hi-lo fire boiler?
While the 261 stages the burner based on load, the rotation function is designed for two separate boilers. For a single two-stage burner, the controller manages firing delays to ensure the high-fire stage only engages when the heating error exceeds proportional limits.

What is the purpose of the Room setting if there is no indoor sensor?
The Room setting acts as a parallel shift for the heating curve. Increasing this value tells the boilers to target a higher supply temperature across the entire outdoor reset range, allowing for easy comfort fine-tuning from the mechanical room.

This item is not eligible for free shipping.

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.

$210.57

Original: $601.62

-65%
Tekmar Controls 261 Control

$601.62

$210.57

Tekmar Controls 261 Control

The Tekmar Controls 261 Control is a reliable, microprocessor-based 120Vac two-stage boiler control designed for precise outdoor reset or setpoint operation. High-performance hydronic systems rely on the 261 to manage boiler staging and equal run time rotation, ensuring balanced wear across multiple heat sources. By utilizing a characterized heating curve, this controller maintains a tight boiler target temperature based on real-time ambient conditions, effectively reducing short-cycling and optimizing fuel efficiency in condensing or non-condensing applications.

Contractors appreciate the PID logic and the powered boiler pump output, which simplifies 120V wiring for basic primary loops. With integrated warm weather shut down (WWSD) and night setback capabilities, the 261 provides advanced energy savings without sacrificing occupant comfort. Designed for versatile integration, it supports 24V to 240V demand signals, making it an ideal choice for mechanical contractors looking for a robust solution for fan coils, radiators, or high-mass radiant floors.

Key Benefits
  • Enhanced Efficiency: Uses outdoor temperature reset to adjust supply water, eliminating energy waste from overheating.
  • Balanced Equipment Usage: Features a fixed 48-hour equal run time rotation to extend the life of two-stage or multiple boiler setups.
  • Simplified Commissioning: Includes a Quick Setup menu and a comprehensive test sequence for standard component verification.
  • System Protection: Integrated boiler minimum settings prevent sustained flue gas condensation in legacy steel or copper-fin boilers.
  • Versatile Control: Manages up to two stages of heat or can be configured for dedicated setpoint control in commercial applications.
Common Questions

How do I resolve "OPN" or "OPEN" error codes on the 261?
An "OPEN" code typically indicates a break in the outdoor sensor or universal sensor circuit. Verify all terminal connections at the block and inspect the sensor wiring for mechanical damage or moisture intrusion.

Can the 261 rotate stages for a single hi-lo fire boiler?
While the 261 stages the burner based on load, the rotation function is designed for two separate boilers. For a single two-stage burner, the controller manages firing delays to ensure the high-fire stage only engages when the heating error exceeds proportional limits.

What is the purpose of the Room setting if there is no indoor sensor?
The Room setting acts as a parallel shift for the heating curve. Increasing this value tells the boilers to target a higher supply temperature across the entire outdoor reset range, allowing for easy comfort fine-tuning from the mechanical room.

This item is not eligible for free shipping.

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

Shipping & Returns

Description

The Tekmar Controls 261 Control is a reliable, microprocessor-based 120Vac two-stage boiler control designed for precise outdoor reset or setpoint operation. High-performance hydronic systems rely on the 261 to manage boiler staging and equal run time rotation, ensuring balanced wear across multiple heat sources. By utilizing a characterized heating curve, this controller maintains a tight boiler target temperature based on real-time ambient conditions, effectively reducing short-cycling and optimizing fuel efficiency in condensing or non-condensing applications.

Contractors appreciate the PID logic and the powered boiler pump output, which simplifies 120V wiring for basic primary loops. With integrated warm weather shut down (WWSD) and night setback capabilities, the 261 provides advanced energy savings without sacrificing occupant comfort. Designed for versatile integration, it supports 24V to 240V demand signals, making it an ideal choice for mechanical contractors looking for a robust solution for fan coils, radiators, or high-mass radiant floors.

Key Benefits
  • Enhanced Efficiency: Uses outdoor temperature reset to adjust supply water, eliminating energy waste from overheating.
  • Balanced Equipment Usage: Features a fixed 48-hour equal run time rotation to extend the life of two-stage or multiple boiler setups.
  • Simplified Commissioning: Includes a Quick Setup menu and a comprehensive test sequence for standard component verification.
  • System Protection: Integrated boiler minimum settings prevent sustained flue gas condensation in legacy steel or copper-fin boilers.
  • Versatile Control: Manages up to two stages of heat or can be configured for dedicated setpoint control in commercial applications.
Common Questions

How do I resolve "OPN" or "OPEN" error codes on the 261?
An "OPEN" code typically indicates a break in the outdoor sensor or universal sensor circuit. Verify all terminal connections at the block and inspect the sensor wiring for mechanical damage or moisture intrusion.

Can the 261 rotate stages for a single hi-lo fire boiler?
While the 261 stages the burner based on load, the rotation function is designed for two separate boilers. For a single two-stage burner, the controller manages firing delays to ensure the high-fire stage only engages when the heating error exceeds proportional limits.

What is the purpose of the Room setting if there is no indoor sensor?
The Room setting acts as a parallel shift for the heating curve. Increasing this value tells the boilers to target a higher supply temperature across the entire outdoor reset range, allowing for easy comfort fine-tuning from the mechanical room.

This item is not eligible for free shipping.

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.

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