Maxitrol TS121A Sensor
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Maxitrol TS121A Sensor

Maxitrol TS121A Sensor

Ensure precise combustion control and discharge air stability with the Maxitrol TS121A, a specialized discharge air temperature sensor engineered for the Maxitrol Selectra Series. Designed to operate within an 80-130 degrees F range, this thermistor-based sensor provides the critical feedback loop required for electronic gas flame modulation in indirect-fired make-up air units. When integrated with a compatible mixing tube, the TS121A delivers near-instantaneous response times, allowing your Maxitrol Selectra amplifier to adjust gas flow at the modulator-regulator valve with superior accuracy compared to traditional mechanical butterfly valves or mod motors.

For technicians servicing Series 20/30 and 21/31 systems, the TS121A is the standard for maintaining tight temperature tolerances in commercial duct furnaces. It features a robust design capable of withstanding the high-velocity airflow of discharge streams. To ensure system field compatibility, verify that your remote temperature selector (such as the TD121A) matches the 80°F to 130°F operating window. This sensor is essential for preventing rapid cycling and ensuring consistent environmental control in gas-fired applications using natural, LP, or mixed fuel gases.

Key Benefits
  • Precise Modulation: Facilitates instantaneous gas flow adjustments to maintain setpoint accuracy within the 80-130°F range.
  • System Compatibility: Fully compatible with Maxitrol Selectra Series 20, 21, 30, and 31 gas modulation systems.
  • Durable Integration: Specifically designed for field or factory mounting within a Maxitrol mixing tube (MT Series) for optimal airflow sampling.
  • Versatile Application: Suitable for use with all fuel gases, including natural and liquefied petroleum (LP) mixtures.
  • Reliable Performance: Operates effectively in ambient environments ranging from -30°F to 125°F.
Common Questions

Which mixing tube should I use with the Maxitrol TS121A?
The TS121A is designed to be housed within MT1 or MT2 series mixing tubes. Common lengths include 9", 12", and 23" depending on your duct dimensions and the required insertion depth for accurate sensing.

How do I troubleshoot a suspected sensor failure in a Series 21 system?
Technicians can verify sensor integrity by checking resistance; the TS121 series typically shows approximately 4500 ohms at 77°F with a 42-ohm change per degree. Always isolate the sensor from the amplifier before testing Ohm values.

Can I use the TS121A with a 55-90°F remote selector?
No. The discharge air sensor and the remote temperature selector must have matching temperature ranges to communicate correctly with the amplifier. Using mismatched components will result in calibration errors and improper valve modulation.

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.

$47.40

Original: $135.43

-65%
Maxitrol TS121A Sensor

$135.43

$47.40

Maxitrol TS121A Sensor

Ensure precise combustion control and discharge air stability with the Maxitrol TS121A, a specialized discharge air temperature sensor engineered for the Maxitrol Selectra Series. Designed to operate within an 80-130 degrees F range, this thermistor-based sensor provides the critical feedback loop required for electronic gas flame modulation in indirect-fired make-up air units. When integrated with a compatible mixing tube, the TS121A delivers near-instantaneous response times, allowing your Maxitrol Selectra amplifier to adjust gas flow at the modulator-regulator valve with superior accuracy compared to traditional mechanical butterfly valves or mod motors.

For technicians servicing Series 20/30 and 21/31 systems, the TS121A is the standard for maintaining tight temperature tolerances in commercial duct furnaces. It features a robust design capable of withstanding the high-velocity airflow of discharge streams. To ensure system field compatibility, verify that your remote temperature selector (such as the TD121A) matches the 80°F to 130°F operating window. This sensor is essential for preventing rapid cycling and ensuring consistent environmental control in gas-fired applications using natural, LP, or mixed fuel gases.

Key Benefits
  • Precise Modulation: Facilitates instantaneous gas flow adjustments to maintain setpoint accuracy within the 80-130°F range.
  • System Compatibility: Fully compatible with Maxitrol Selectra Series 20, 21, 30, and 31 gas modulation systems.
  • Durable Integration: Specifically designed for field or factory mounting within a Maxitrol mixing tube (MT Series) for optimal airflow sampling.
  • Versatile Application: Suitable for use with all fuel gases, including natural and liquefied petroleum (LP) mixtures.
  • Reliable Performance: Operates effectively in ambient environments ranging from -30°F to 125°F.
Common Questions

Which mixing tube should I use with the Maxitrol TS121A?
The TS121A is designed to be housed within MT1 or MT2 series mixing tubes. Common lengths include 9", 12", and 23" depending on your duct dimensions and the required insertion depth for accurate sensing.

How do I troubleshoot a suspected sensor failure in a Series 21 system?
Technicians can verify sensor integrity by checking resistance; the TS121 series typically shows approximately 4500 ohms at 77°F with a 42-ohm change per degree. Always isolate the sensor from the amplifier before testing Ohm values.

Can I use the TS121A with a 55-90°F remote selector?
No. The discharge air sensor and the remote temperature selector must have matching temperature ranges to communicate correctly with the amplifier. Using mismatched components will result in calibration errors and improper valve modulation.

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

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Description

Ensure precise combustion control and discharge air stability with the Maxitrol TS121A, a specialized discharge air temperature sensor engineered for the Maxitrol Selectra Series. Designed to operate within an 80-130 degrees F range, this thermistor-based sensor provides the critical feedback loop required for electronic gas flame modulation in indirect-fired make-up air units. When integrated with a compatible mixing tube, the TS121A delivers near-instantaneous response times, allowing your Maxitrol Selectra amplifier to adjust gas flow at the modulator-regulator valve with superior accuracy compared to traditional mechanical butterfly valves or mod motors.

For technicians servicing Series 20/30 and 21/31 systems, the TS121A is the standard for maintaining tight temperature tolerances in commercial duct furnaces. It features a robust design capable of withstanding the high-velocity airflow of discharge streams. To ensure system field compatibility, verify that your remote temperature selector (such as the TD121A) matches the 80°F to 130°F operating window. This sensor is essential for preventing rapid cycling and ensuring consistent environmental control in gas-fired applications using natural, LP, or mixed fuel gases.

Key Benefits
  • Precise Modulation: Facilitates instantaneous gas flow adjustments to maintain setpoint accuracy within the 80-130°F range.
  • System Compatibility: Fully compatible with Maxitrol Selectra Series 20, 21, 30, and 31 gas modulation systems.
  • Durable Integration: Specifically designed for field or factory mounting within a Maxitrol mixing tube (MT Series) for optimal airflow sampling.
  • Versatile Application: Suitable for use with all fuel gases, including natural and liquefied petroleum (LP) mixtures.
  • Reliable Performance: Operates effectively in ambient environments ranging from -30°F to 125°F.
Common Questions

Which mixing tube should I use with the Maxitrol TS121A?
The TS121A is designed to be housed within MT1 or MT2 series mixing tubes. Common lengths include 9", 12", and 23" depending on your duct dimensions and the required insertion depth for accurate sensing.

How do I troubleshoot a suspected sensor failure in a Series 21 system?
Technicians can verify sensor integrity by checking resistance; the TS121 series typically shows approximately 4500 ohms at 77°F with a 42-ohm change per degree. Always isolate the sensor from the amplifier before testing Ohm values.

Can I use the TS121A with a 55-90°F remote selector?
No. The discharge air sensor and the remote temperature selector must have matching temperature ranges to communicate correctly with the amplifier. Using mismatched components will result in calibration errors and improper valve modulation.

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.