
Nordyne 918837 Ambient Kit
The Nordyne 918837 Low Ambient Kit is an essential OEM component designed to maintain critical head pressure in cooling systems operating in low-temperature environments. Rated for In/Out 350/250 PSI, this high-pressure fan cycling switch ensures that your condenser fan motor modulates correctly to prevent evaporator freeze-ups and compressor damage when outdoor temperatures drop below 65°F. By cycling the fan based on refrigerant discharge pressure, this kit stabilizes the system’s performance, making it a vital addition for commercial HVAC maintenance and server room cooling applications.
This HVAC low ambient control is engineered for seamless integration with compatible Nordyne and Nortek units, providing a professional-grade alternative to universal head pressure controls. The 350 PSI cut-in and 250 PSI cut-out settings are factory-calibrated to optimize refrigerant flow and heat exchange efficiency. Utilizing a genuine 918837 pressure switch kit ensures that the electrical interface and mounting footprint match the original equipment specifications, reducing installation time and eliminating the need for field-adjustable brackets in high-stakes light commercial refrigeration or air conditioning repairs.
Key Benefits
- Precision Pressure Control: Maintains optimal head pressure with a dedicated 350 PSI cut-in and 250 PSI cut-out cycle.
- Reliable Cold-Weather Operation: Enables cooling operation in ambient temperatures as low as -20°F (depending on system configuration).
- Component Protection: Reduces the risk of liquid refrigerant slugging and extends compressor lifespan by preventing low-suction conditions.
- OEM Compatibility: Specifically designed for Nordyne 918837 applications, ensuring correct wire termination and mounting.
- Improved System Efficiency: Optimizes the expansion valve (TXV) performance by providing a consistent pressure drop across the orifice.
Common Questions
Does this kit work with R-410A systems?
Yes, the Nordyne 918837 kit is designed for high-pressure refrigerants like R-410A, with heavy-duty contacts rated for the pressures typical of modern cooling equipment.
Where is the pressure switch typically installed?
The switch is generally installed on the liquid line or the discharge line to monitor head pressure directly, controlling the condenser fan power supply based on the detected 350/250 PSI range.
Can I use this for heat pump applications?
This kit is primarily utilized in cooling-only applications or the cooling cycle of a heat pump. Consult the manufacturer's wiring diagram to ensure the fan continues to operate correctly during the heating/defrost cycles.
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: $119.53
-65%$119.53
$41.84Nordyne 918837 Ambient Kit
The Nordyne 918837 Low Ambient Kit is an essential OEM component designed to maintain critical head pressure in cooling systems operating in low-temperature environments. Rated for In/Out 350/250 PSI, this high-pressure fan cycling switch ensures that your condenser fan motor modulates correctly to prevent evaporator freeze-ups and compressor damage when outdoor temperatures drop below 65°F. By cycling the fan based on refrigerant discharge pressure, this kit stabilizes the system’s performance, making it a vital addition for commercial HVAC maintenance and server room cooling applications.
This HVAC low ambient control is engineered for seamless integration with compatible Nordyne and Nortek units, providing a professional-grade alternative to universal head pressure controls. The 350 PSI cut-in and 250 PSI cut-out settings are factory-calibrated to optimize refrigerant flow and heat exchange efficiency. Utilizing a genuine 918837 pressure switch kit ensures that the electrical interface and mounting footprint match the original equipment specifications, reducing installation time and eliminating the need for field-adjustable brackets in high-stakes light commercial refrigeration or air conditioning repairs.
Key Benefits
- Precision Pressure Control: Maintains optimal head pressure with a dedicated 350 PSI cut-in and 250 PSI cut-out cycle.
- Reliable Cold-Weather Operation: Enables cooling operation in ambient temperatures as low as -20°F (depending on system configuration).
- Component Protection: Reduces the risk of liquid refrigerant slugging and extends compressor lifespan by preventing low-suction conditions.
- OEM Compatibility: Specifically designed for Nordyne 918837 applications, ensuring correct wire termination and mounting.
- Improved System Efficiency: Optimizes the expansion valve (TXV) performance by providing a consistent pressure drop across the orifice.
Common Questions
Does this kit work with R-410A systems?
Yes, the Nordyne 918837 kit is designed for high-pressure refrigerants like R-410A, with heavy-duty contacts rated for the pressures typical of modern cooling equipment.
Where is the pressure switch typically installed?
The switch is generally installed on the liquid line or the discharge line to monitor head pressure directly, controlling the condenser fan power supply based on the detected 350/250 PSI range.
Can I use this for heat pump applications?
This kit is primarily utilized in cooling-only applications or the cooling cycle of a heat pump. Consult the manufacturer's wiring diagram to ensure the fan continues to operate correctly during the heating/defrost cycles.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Nordyne 918837 Low Ambient Kit is an essential OEM component designed to maintain critical head pressure in cooling systems operating in low-temperature environments. Rated for In/Out 350/250 PSI, this high-pressure fan cycling switch ensures that your condenser fan motor modulates correctly to prevent evaporator freeze-ups and compressor damage when outdoor temperatures drop below 65°F. By cycling the fan based on refrigerant discharge pressure, this kit stabilizes the system’s performance, making it a vital addition for commercial HVAC maintenance and server room cooling applications.
This HVAC low ambient control is engineered for seamless integration with compatible Nordyne and Nortek units, providing a professional-grade alternative to universal head pressure controls. The 350 PSI cut-in and 250 PSI cut-out settings are factory-calibrated to optimize refrigerant flow and heat exchange efficiency. Utilizing a genuine 918837 pressure switch kit ensures that the electrical interface and mounting footprint match the original equipment specifications, reducing installation time and eliminating the need for field-adjustable brackets in high-stakes light commercial refrigeration or air conditioning repairs.
Key Benefits
- Precision Pressure Control: Maintains optimal head pressure with a dedicated 350 PSI cut-in and 250 PSI cut-out cycle.
- Reliable Cold-Weather Operation: Enables cooling operation in ambient temperatures as low as -20°F (depending on system configuration).
- Component Protection: Reduces the risk of liquid refrigerant slugging and extends compressor lifespan by preventing low-suction conditions.
- OEM Compatibility: Specifically designed for Nordyne 918837 applications, ensuring correct wire termination and mounting.
- Improved System Efficiency: Optimizes the expansion valve (TXV) performance by providing a consistent pressure drop across the orifice.
Common Questions
Does this kit work with R-410A systems?
Yes, the Nordyne 918837 kit is designed for high-pressure refrigerants like R-410A, with heavy-duty contacts rated for the pressures typical of modern cooling equipment.
Where is the pressure switch typically installed?
The switch is generally installed on the liquid line or the discharge line to monitor head pressure directly, controlling the condenser fan power supply based on the detected 350/250 PSI range.
Can I use this for heat pump applications?
This kit is primarily utilized in cooling-only applications or the cooling cycle of a heat pump. Consult the manufacturer's wiring diagram to ensure the fan continues to operate correctly during the heating/defrost cycles.
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.












