Lennox 45F08 Switch
The Lennox 45F08 Low Ambient Cutoff Switch is a critical SPST (Single Pole Single Throw) safety component engineered for HVACR systems utilizing high-pressure refrigerants like R-410A. Designed to prevent compressor operation during low outdoor temperatures, this ambient temperature control switch opens on a temperature fall at 45°F and automatically resets on a rise at 55°F. This specific Lennox condenser switch ensures the system remains within safe operating parameters, preventing liquid slugging and excessive oil migration during cold weather startups. It is a direct OEM replacement for various Lennox Elite and Dave Lennox Signature Series heat pumps and air conditioners. For field technicians, the 45F08 HVAC switch provides a reliable, calibrated response to ambient conditions, maintaining the integrity of the refrigeration cycle. Proper installation requires 1/4" female spade terminals and secure mounting to the liquid line or control box to ensure accurate thermal sensing and compressor protection.
Key Technical Benefits- Automatic Reset: Opens at 45°F and closes at 55°F, ensuring automated system cycling without manual intervention.
- High-Pressure Compatibility: Built to withstand the demands of modern 410A residential and commercial applications.
- OEM Precision: Guaranteed Lennox 45F08 compatibility for precise fitment in specified outdoor sections, reducing diagnostic errors.
- Sealed Construction: Protection against moisture and vibration common in heavy-duty condensing units.
What is the purpose of a 45F08 low ambient switch?
It acts as a lockout mechanism to prevent the compressor from running when outdoor temperatures are too low to maintain proper head pressure.
Is the Lennox 45F08 a normally open or normally closed switch?
This is a normally closed switch that opens on a temperature drop (45°F) to break the 24V control circuit.
Can this be used on non-Lennox equipment?
While technically an SPST switch, it is calibrated specifically for Lennox equipment specifications and should only be used as a cross-referenced HVAC replacement part verified by professional specs.
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: $39.13
-65%$39.13
$13.70Lennox 45F08 Switch
The Lennox 45F08 Low Ambient Cutoff Switch is a critical SPST (Single Pole Single Throw) safety component engineered for HVACR systems utilizing high-pressure refrigerants like R-410A. Designed to prevent compressor operation during low outdoor temperatures, this ambient temperature control switch opens on a temperature fall at 45°F and automatically resets on a rise at 55°F. This specific Lennox condenser switch ensures the system remains within safe operating parameters, preventing liquid slugging and excessive oil migration during cold weather startups. It is a direct OEM replacement for various Lennox Elite and Dave Lennox Signature Series heat pumps and air conditioners. For field technicians, the 45F08 HVAC switch provides a reliable, calibrated response to ambient conditions, maintaining the integrity of the refrigeration cycle. Proper installation requires 1/4" female spade terminals and secure mounting to the liquid line or control box to ensure accurate thermal sensing and compressor protection.
Key Technical Benefits- Automatic Reset: Opens at 45°F and closes at 55°F, ensuring automated system cycling without manual intervention.
- High-Pressure Compatibility: Built to withstand the demands of modern 410A residential and commercial applications.
- OEM Precision: Guaranteed Lennox 45F08 compatibility for precise fitment in specified outdoor sections, reducing diagnostic errors.
- Sealed Construction: Protection against moisture and vibration common in heavy-duty condensing units.
What is the purpose of a 45F08 low ambient switch?
It acts as a lockout mechanism to prevent the compressor from running when outdoor temperatures are too low to maintain proper head pressure.
Is the Lennox 45F08 a normally open or normally closed switch?
This is a normally closed switch that opens on a temperature drop (45°F) to break the 24V control circuit.
Can this be used on non-Lennox equipment?
While technically an SPST switch, it is calibrated specifically for Lennox equipment specifications and should only be used as a cross-referenced HVAC replacement part verified by professional specs.
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 45F08 Low Ambient Cutoff Switch is a critical SPST (Single Pole Single Throw) safety component engineered for HVACR systems utilizing high-pressure refrigerants like R-410A. Designed to prevent compressor operation during low outdoor temperatures, this ambient temperature control switch opens on a temperature fall at 45°F and automatically resets on a rise at 55°F. This specific Lennox condenser switch ensures the system remains within safe operating parameters, preventing liquid slugging and excessive oil migration during cold weather startups. It is a direct OEM replacement for various Lennox Elite and Dave Lennox Signature Series heat pumps and air conditioners. For field technicians, the 45F08 HVAC switch provides a reliable, calibrated response to ambient conditions, maintaining the integrity of the refrigeration cycle. Proper installation requires 1/4" female spade terminals and secure mounting to the liquid line or control box to ensure accurate thermal sensing and compressor protection.
Key Technical Benefits- Automatic Reset: Opens at 45°F and closes at 55°F, ensuring automated system cycling without manual intervention.
- High-Pressure Compatibility: Built to withstand the demands of modern 410A residential and commercial applications.
- OEM Precision: Guaranteed Lennox 45F08 compatibility for precise fitment in specified outdoor sections, reducing diagnostic errors.
- Sealed Construction: Protection against moisture and vibration common in heavy-duty condensing units.
What is the purpose of a 45F08 low ambient switch?
It acts as a lockout mechanism to prevent the compressor from running when outdoor temperatures are too low to maintain proper head pressure.
Is the Lennox 45F08 a normally open or normally closed switch?
This is a normally closed switch that opens on a temperature drop (45°F) to break the 24V control circuit.
Can this be used on non-Lennox equipment?
While technically an SPST switch, it is calibrated specifically for Lennox equipment specifications and should only be used as a cross-referenced HVAC replacement part verified by professional specs.
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.
