Lennox 88K38 Air Sensor
The Lennox 88K38 Discharge Air Sensor is a critical diagnostic and control component designed for precise discharge air temperature monitoring in high-performance Lennox HVAC systems. This OEM Lennox sensor (Catalog # 88K38 / 88K3801) is required for EVENHEAT operation in air handlers and is a central element of the iHarmony zoning system. By providing real-time supply air temperature data to the control board or zone module, it allows for proactive adjustments to heating and cooling stages, ensuring the system operates within safe thermal limits while maintaining optimal airflow.
Constructed for flange mounting within the discharge air plenum, the 88K38 features a durable probe assembly that withstands high-velocity environments. In communicating HVAC systems, the DATS (Discharge Air Temperature Sensor) feedback is essential for maintaining staging logic and preventing coil freeze-up or furnace overheating. For technicians performing HVAC system troubleshooting, this sensor provides the necessary feedback to confirm the unit is delivering the specified temperature rise across the heat exchanger or drop across the evaporator coil.
Key Benefits:- Precise System Control: Facilitates EVENHEAT logic to maintain consistent discharge temperatures during electric heat cycles.
- Zoning Compatibility: Mandatory for iHarmony zoning systems to monitor individual zone supply air and prevent equipment cycling issues.
- Durable Probe Design: Engineered to provide accurate 10K resistance readings (standard NTC thermistor) in high-airflow residential and light commercial ductwork.
- Direct OEM Replacement: Ensures full compatibility with Lennox furnaces and variable speed air handlers without the need for field calibration.
- Where should the Lennox 88K38 be installed? It must be field-mounted in the supply air plenum, typically at least 19 inches above the air handler or 10 inches above the cooling coil in furnace applications.
- Is this sensor required for all Lennox systems? While it is an accessory for standalone units, it is required for all iHarmony zoning and EVENHEAT enabled air handlers to function correctly.
- How do I test the 88K38 sensor? Use a multimeter to check the resistance across the two leads; a standard 10K ohm reading at 77°F (25°C) indicates the sensor is within operational range.
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.
Original: $32.06
-65%$32.06
$11.22Lennox 88K38 Air Sensor
The Lennox 88K38 Discharge Air Sensor is a critical diagnostic and control component designed for precise discharge air temperature monitoring in high-performance Lennox HVAC systems. This OEM Lennox sensor (Catalog # 88K38 / 88K3801) is required for EVENHEAT operation in air handlers and is a central element of the iHarmony zoning system. By providing real-time supply air temperature data to the control board or zone module, it allows for proactive adjustments to heating and cooling stages, ensuring the system operates within safe thermal limits while maintaining optimal airflow.
Constructed for flange mounting within the discharge air plenum, the 88K38 features a durable probe assembly that withstands high-velocity environments. In communicating HVAC systems, the DATS (Discharge Air Temperature Sensor) feedback is essential for maintaining staging logic and preventing coil freeze-up or furnace overheating. For technicians performing HVAC system troubleshooting, this sensor provides the necessary feedback to confirm the unit is delivering the specified temperature rise across the heat exchanger or drop across the evaporator coil.
Key Benefits:- Precise System Control: Facilitates EVENHEAT logic to maintain consistent discharge temperatures during electric heat cycles.
- Zoning Compatibility: Mandatory for iHarmony zoning systems to monitor individual zone supply air and prevent equipment cycling issues.
- Durable Probe Design: Engineered to provide accurate 10K resistance readings (standard NTC thermistor) in high-airflow residential and light commercial ductwork.
- Direct OEM Replacement: Ensures full compatibility with Lennox furnaces and variable speed air handlers without the need for field calibration.
- Where should the Lennox 88K38 be installed? It must be field-mounted in the supply air plenum, typically at least 19 inches above the air handler or 10 inches above the cooling coil in furnace applications.
- Is this sensor required for all Lennox systems? While it is an accessory for standalone units, it is required for all iHarmony zoning and EVENHEAT enabled air handlers to function correctly.
- How do I test the 88K38 sensor? Use a multimeter to check the resistance across the two leads; a standard 10K ohm reading at 77°F (25°C) indicates the sensor is within operational range.
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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Description
The Lennox 88K38 Discharge Air Sensor is a critical diagnostic and control component designed for precise discharge air temperature monitoring in high-performance Lennox HVAC systems. This OEM Lennox sensor (Catalog # 88K38 / 88K3801) is required for EVENHEAT operation in air handlers and is a central element of the iHarmony zoning system. By providing real-time supply air temperature data to the control board or zone module, it allows for proactive adjustments to heating and cooling stages, ensuring the system operates within safe thermal limits while maintaining optimal airflow.
Constructed for flange mounting within the discharge air plenum, the 88K38 features a durable probe assembly that withstands high-velocity environments. In communicating HVAC systems, the DATS (Discharge Air Temperature Sensor) feedback is essential for maintaining staging logic and preventing coil freeze-up or furnace overheating. For technicians performing HVAC system troubleshooting, this sensor provides the necessary feedback to confirm the unit is delivering the specified temperature rise across the heat exchanger or drop across the evaporator coil.
Key Benefits:- Precise System Control: Facilitates EVENHEAT logic to maintain consistent discharge temperatures during electric heat cycles.
- Zoning Compatibility: Mandatory for iHarmony zoning systems to monitor individual zone supply air and prevent equipment cycling issues.
- Durable Probe Design: Engineered to provide accurate 10K resistance readings (standard NTC thermistor) in high-airflow residential and light commercial ductwork.
- Direct OEM Replacement: Ensures full compatibility with Lennox furnaces and variable speed air handlers without the need for field calibration.
- Where should the Lennox 88K38 be installed? It must be field-mounted in the supply air plenum, typically at least 19 inches above the air handler or 10 inches above the cooling coil in furnace applications.
- Is this sensor required for all Lennox systems? While it is an accessory for standalone units, it is required for all iHarmony zoning and EVENHEAT enabled air handlers to function correctly.
- How do I test the 88K38 sensor? Use a multimeter to check the resistance across the two leads; a standard 10K ohm reading at 77°F (25°C) indicates the sensor is within operational range.
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.
