Description
The Lennox 11G27 Enthalpy Sensor is a precision-engineered sensing device designed to measure the enthalpy (combined temperature and humidity) of outdoor air, enabling HVAC systems to make intelligent economizer decisions. By accurately detecting when outdoor air conditions are favorable for free cooling, this sensor helps minimize mechanical cooling loads and reduce energy consumption — a critical function in any energy-efficient commercial or residential HVAC system.
Key Features
- Genuine Lennox OEM replacement enthalpy sensor (SKU: 11G27)
- Measures combined dry-bulb temperature and relative humidity to calculate outdoor air enthalpy
- Designed for seamless integration with Lennox economizer controls and compatible systems
- Supports demand-controlled ventilation and free-cooling strategies
- Durable construction engineered for reliable outdoor or mixed-air duct installation
- Helps maximize energy savings by enabling the economizer to use outdoor air when conditions are optimal
Application
This enthalpy sensor is ideal for use in commercial and light commercial HVAC applications where economizer control is required. It works in conjunction with economizer controllers to compare outdoor air enthalpy against a setpoint or return air enthalpy, allowing the system to determine the most energy-efficient mode of operation. Proper enthalpy sensing is essential for compliance with energy codes that mandate economizer use in many climate zones.
Why Choose the Lennox 11G27?
- Genuine OEM part ensures compatibility and long-term reliability with Lennox equipment
- Reduces HVAC operating costs through smarter economizer operation
- Supports energy code compliance in applicable climate zones
- Easy drop-in replacement for worn or failed enthalpy sensors
Specifications
- Brand: Lennox
- Part Number / SKU: 11G27
- Sensor Type: Enthalpy (Temperature + Humidity)
- Application: Economizer outdoor air / mixed-air sensing
- OEM Replacement: Yes
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