
Automation Components Inc (ACI) A/AN-I-4-GD Sensor
The Automation Components Inc (ACI) A/AN-I-4-GD Sensor is an industrial-grade immersion temperature sensor engineered for precise monitoring in HVAC Building Automation Systems (BAS). This 10K Type III thermistor features a 4-inch stainless steel probe and is housed in a durable galvanized metal enclosure designed for long-term reliability in light industrial environments. Built with ACI's proprietary double encapsulation process, the sensing element is protected against moisture infiltration using a high-quality, thermally conductive epoxy that also improves response times. The unit includes 14-inch etched Teflon lead wires (22 AWG) for easy identification and superior resistance to chemical or thermal degradation. Ideal for chillers, hot water systems, and industrial boilers, the A/AN-I-4-GD provides a 10K Ohm resistance output compatible with most modern controllers. This part is a direct equivalent to the ACI/10K-AN-I-4-GD and features a 1/2" NPT male thread for standard well mounting. Please note that while a welded thermowell is included in some configurations, machined wells are recommended for high-velocity or high-pressure fluid applications.
Key Benefits:
- Enhanced Moisture Protection: Features a double encapsulated sensor to prevent failures in high-humidity or condensing environments.
- Universal Compatibility: Uses a 10K Type III thermistor curve, making it compatible with a wide range of BAS and HVAC controllers.
- Durable Construction: The galvanized steel enclosure provides a NEMA 1 rating, ensuring protection for internal wiring in mechanical rooms.
- Rapid Thermal Response: Thermal conductive epoxy reduces lag time for more accurate system adjustments.
- Flexible Installation: Integrated 1/2" NPT threads and etched Teflon leads simplify mounting and wiring in chilled water systems.
Common Questions:
Can this sensor be used in high-pressure steam lines?
The provided welded thermowells are designed for standard HVAC applications. For high-pressure service or moving water with high velocity, a machined thermowell should be used to prevent well failure due to wake frequency.
What is the difference between the A/AN-I-4-GD and the ACI/10K-AN-I-4-GD?
These two part numbers are identical in specifications and performance; they represent the same 10K Ohm Type III 4-inch immersion sensor.
Do I need to apply thermal grease to the probe?
While the ACI wells are milled to tight tolerances for excellent heat transfer, using a thermal conductive compound like TCC-12 can further improve accuracy and response speed.
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.
This item is not eligible for free shipping.
Automation Components Inc (ACI) A/AN-I-4-GD Sensor
The Automation Components Inc (ACI) A/AN-I-4-GD Sensor is an industrial-grade immersion temperature sensor engineered for precise monitoring in HVAC Building Automation Systems (BAS). This 10K Type III thermistor features a 4-inch stainless steel probe and is housed in a durable galvanized metal enclosure designed for long-term reliability in light industrial environments. Built with ACI's proprietary double encapsulation process, the sensing element is protected against moisture infiltration using a high-quality, thermally conductive epoxy that also improves response times. The unit includes 14-inch etched Teflon lead wires (22 AWG) for easy identification and superior resistance to chemical or thermal degradation. Ideal for chillers, hot water systems, and industrial boilers, the A/AN-I-4-GD provides a 10K Ohm resistance output compatible with most modern controllers. This part is a direct equivalent to the ACI/10K-AN-I-4-GD and features a 1/2" NPT male thread for standard well mounting. Please note that while a welded thermowell is included in some configurations, machined wells are recommended for high-velocity or high-pressure fluid applications.
Key Benefits:
- Enhanced Moisture Protection: Features a double encapsulated sensor to prevent failures in high-humidity or condensing environments.
- Universal Compatibility: Uses a 10K Type III thermistor curve, making it compatible with a wide range of BAS and HVAC controllers.
- Durable Construction: The galvanized steel enclosure provides a NEMA 1 rating, ensuring protection for internal wiring in mechanical rooms.
- Rapid Thermal Response: Thermal conductive epoxy reduces lag time for more accurate system adjustments.
- Flexible Installation: Integrated 1/2" NPT threads and etched Teflon leads simplify mounting and wiring in chilled water systems.
Common Questions:
Can this sensor be used in high-pressure steam lines?
The provided welded thermowells are designed for standard HVAC applications. For high-pressure service or moving water with high velocity, a machined thermowell should be used to prevent well failure due to wake frequency.
What is the difference between the A/AN-I-4-GD and the ACI/10K-AN-I-4-GD?
These two part numbers are identical in specifications and performance; they represent the same 10K Ohm Type III 4-inch immersion sensor.
Do I need to apply thermal grease to the probe?
While the ACI wells are milled to tight tolerances for excellent heat transfer, using a thermal conductive compound like TCC-12 can further improve accuracy and response speed.
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.
This item is not eligible for free shipping.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Automation Components Inc (ACI) A/AN-I-4-GD Sensor is an industrial-grade immersion temperature sensor engineered for precise monitoring in HVAC Building Automation Systems (BAS). This 10K Type III thermistor features a 4-inch stainless steel probe and is housed in a durable galvanized metal enclosure designed for long-term reliability in light industrial environments. Built with ACI's proprietary double encapsulation process, the sensing element is protected against moisture infiltration using a high-quality, thermally conductive epoxy that also improves response times. The unit includes 14-inch etched Teflon lead wires (22 AWG) for easy identification and superior resistance to chemical or thermal degradation. Ideal for chillers, hot water systems, and industrial boilers, the A/AN-I-4-GD provides a 10K Ohm resistance output compatible with most modern controllers. This part is a direct equivalent to the ACI/10K-AN-I-4-GD and features a 1/2" NPT male thread for standard well mounting. Please note that while a welded thermowell is included in some configurations, machined wells are recommended for high-velocity or high-pressure fluid applications.
Key Benefits:
- Enhanced Moisture Protection: Features a double encapsulated sensor to prevent failures in high-humidity or condensing environments.
- Universal Compatibility: Uses a 10K Type III thermistor curve, making it compatible with a wide range of BAS and HVAC controllers.
- Durable Construction: The galvanized steel enclosure provides a NEMA 1 rating, ensuring protection for internal wiring in mechanical rooms.
- Rapid Thermal Response: Thermal conductive epoxy reduces lag time for more accurate system adjustments.
- Flexible Installation: Integrated 1/2" NPT threads and etched Teflon leads simplify mounting and wiring in chilled water systems.
Common Questions:
Can this sensor be used in high-pressure steam lines?
The provided welded thermowells are designed for standard HVAC applications. For high-pressure service or moving water with high velocity, a machined thermowell should be used to prevent well failure due to wake frequency.
What is the difference between the A/AN-I-4-GD and the ACI/10K-AN-I-4-GD?
These two part numbers are identical in specifications and performance; they represent the same 10K Ohm Type III 4-inch immersion sensor.
Do I need to apply thermal grease to the probe?
While the ACI wells are milled to tight tolerances for excellent heat transfer, using a thermal conductive compound like TCC-12 can further improve accuracy and response speed.
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.
This item is not eligible for free shipping.











