Lennox 16F18 Low Ambient Kit
For contractors managing 16F18-compatible rooftop units or split systems, the Lennox 16F18 Low Ambient Kit is a critical field-installed accessory for maintaining stable head pressure during cold-weather cooling demands. This kit utilizes an ICM333 variable speed controller and high-accuracy pressure transducers to modulate condenser fan speeds based on liquid line conditions. Instead of traditional fan cycling, which can cause erratic pressure swings and compressor slugging, this head pressure control provides a linear output to prevent system freeze-ups and maintain the necessary pressure drop across the expansion valve down to 0°F (-17.8°C).
The Lennox 16F18 package includes the required temperature switches and wiring harnesses to de-energize primary condenser fans and optimize the low ambient cooling performance of ELS 072-090 series and other compatible commercial rooftop units. By integrating this OEM HVAC replacement part, technicians can ensure reliable HVAC low ambient operation for server rooms or other year-round cooling applications. The condenser fan speed controller is typically set to a 315 psig setpoint for R-410A systems, effectively stabilizing the refrigerant head pressure to protect the compressor from low-pressure trips and oil migration issues during winter operation.
Key Benefits- Ensures continuous cooling operation in external temperatures down to 0°F.
- Features a variable speed fan control for precise 315 psig head pressure regulation.
- Reduces mechanical wear by eliminating aggressive fan cycling.
- Includes the Lennox pressure transducer and ICM controller for standard field installation.
- Maintains proper system pressure drop to prevent evaporator coil icing.
How does this kit prevent compressor damage in winter?
In low temperatures, liquid line pressure drops. This kit uses head pressure controls to slow the fan, keeping the head pressure high enough to ensure the refrigerant flows correctly and the compressor stays lubricated.
Is this kit compatible with standard 208/230V systems?
Yes, the ICM333 controller included in the 16F18 kit is designed to handle standard line voltages while providing the 24V signal required for temperature switch integration.
Can I adjust the pressure setpoints on the 16F18?
Yes, the head pressure control allows for specific setpoint and hard-start adjustments to match the unique load requirements of your commercial HVAC system.
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: $487.35
-65%$487.35
$170.57Lennox 16F18 Low Ambient Kit
For contractors managing 16F18-compatible rooftop units or split systems, the Lennox 16F18 Low Ambient Kit is a critical field-installed accessory for maintaining stable head pressure during cold-weather cooling demands. This kit utilizes an ICM333 variable speed controller and high-accuracy pressure transducers to modulate condenser fan speeds based on liquid line conditions. Instead of traditional fan cycling, which can cause erratic pressure swings and compressor slugging, this head pressure control provides a linear output to prevent system freeze-ups and maintain the necessary pressure drop across the expansion valve down to 0°F (-17.8°C).
The Lennox 16F18 package includes the required temperature switches and wiring harnesses to de-energize primary condenser fans and optimize the low ambient cooling performance of ELS 072-090 series and other compatible commercial rooftop units. By integrating this OEM HVAC replacement part, technicians can ensure reliable HVAC low ambient operation for server rooms or other year-round cooling applications. The condenser fan speed controller is typically set to a 315 psig setpoint for R-410A systems, effectively stabilizing the refrigerant head pressure to protect the compressor from low-pressure trips and oil migration issues during winter operation.
Key Benefits- Ensures continuous cooling operation in external temperatures down to 0°F.
- Features a variable speed fan control for precise 315 psig head pressure regulation.
- Reduces mechanical wear by eliminating aggressive fan cycling.
- Includes the Lennox pressure transducer and ICM controller for standard field installation.
- Maintains proper system pressure drop to prevent evaporator coil icing.
How does this kit prevent compressor damage in winter?
In low temperatures, liquid line pressure drops. This kit uses head pressure controls to slow the fan, keeping the head pressure high enough to ensure the refrigerant flows correctly and the compressor stays lubricated.
Is this kit compatible with standard 208/230V systems?
Yes, the ICM333 controller included in the 16F18 kit is designed to handle standard line voltages while providing the 24V signal required for temperature switch integration.
Can I adjust the pressure setpoints on the 16F18?
Yes, the head pressure control allows for specific setpoint and hard-start adjustments to match the unique load requirements of your commercial HVAC system.
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
For contractors managing 16F18-compatible rooftop units or split systems, the Lennox 16F18 Low Ambient Kit is a critical field-installed accessory for maintaining stable head pressure during cold-weather cooling demands. This kit utilizes an ICM333 variable speed controller and high-accuracy pressure transducers to modulate condenser fan speeds based on liquid line conditions. Instead of traditional fan cycling, which can cause erratic pressure swings and compressor slugging, this head pressure control provides a linear output to prevent system freeze-ups and maintain the necessary pressure drop across the expansion valve down to 0°F (-17.8°C).
The Lennox 16F18 package includes the required temperature switches and wiring harnesses to de-energize primary condenser fans and optimize the low ambient cooling performance of ELS 072-090 series and other compatible commercial rooftop units. By integrating this OEM HVAC replacement part, technicians can ensure reliable HVAC low ambient operation for server rooms or other year-round cooling applications. The condenser fan speed controller is typically set to a 315 psig setpoint for R-410A systems, effectively stabilizing the refrigerant head pressure to protect the compressor from low-pressure trips and oil migration issues during winter operation.
Key Benefits- Ensures continuous cooling operation in external temperatures down to 0°F.
- Features a variable speed fan control for precise 315 psig head pressure regulation.
- Reduces mechanical wear by eliminating aggressive fan cycling.
- Includes the Lennox pressure transducer and ICM controller for standard field installation.
- Maintains proper system pressure drop to prevent evaporator coil icing.
How does this kit prevent compressor damage in winter?
In low temperatures, liquid line pressure drops. This kit uses head pressure controls to slow the fan, keeping the head pressure high enough to ensure the refrigerant flows correctly and the compressor stays lubricated.
Is this kit compatible with standard 208/230V systems?
Yes, the ICM333 controller included in the 16F18 kit is designed to handle standard line voltages while providing the 24V signal required for temperature switch integration.
Can I adjust the pressure setpoints on the 16F18?
Yes, the head pressure control allows for specific setpoint and hard-start adjustments to match the unique load requirements of your commercial HVAC system.
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.
