
York S1-2LA06700424 Ambient Kit
The York S1-2LA06700424 Ambient Kit is a field-installed pressure control solution engineered for R-410A refrigeration systems. Designed for single-stage split-system air conditioners and heat pumps, this kit permits reliable cooling operation in low-temperature environments down to 20°F (-7°C). By monitoring liquid line pressure, the integrated low ambient pressure switch cycles the outdoor fan motor to maintain optimal head pressure, ensuring the expansion device functions correctly and prevents evaporator coil freeze-ups.
This kit includes a heavy-duty pressure switch, wiring harness, and necessary fittings for a precise HXAC installation. For R-410A applications, the switch is factory-calibrated to energize the fan motor when liquid line pressure reaches 360 +/-10 PSIG and cut power when pressure drops below 240 +/-10 PSIG. To ensure component longevity and prevent liquid migration during low-temperature cycles, it is professional standard practice to install a crankcase heater and ensure the indoor coil is equipped with a Thermal Expansion Valve (TXV) when utilizing this control.
- Optimized Head Pressure: Maintains consistent condenser liquid pressure to ensure proper refrigerant metering during low outdoor temperatures.
- Extended Operating Range: Enables air conditioning operation in specialized environments down to 20 degrees Fahrenheit.
- Universal Compatibility: Designed for use with 120V to 600V AC single-phase PSC, shaded pole, or single-speed ECM fan motors.
- System Protection: Reduces the risk of compressor slugging and evaporator icing by maintaining stable operating differentials.
- Seamless Integration: Features a normally-closed relay configuration that breaks the fan circuit automatically based on real-time R410A pressure settings.
Common Questions
Can this kit be used on heat pumps?
Yes, but the control circuit must be wired through the 4-way reversing valve power to disable fan cycling while in heat mode, as head pressure regulation is only required during cooling cycles.
What motors are compatible with the S1-2LA06700424?
This kit is validated for use with single-phase motors, including Permanent Split Capacitor (PSC), shaded pole, and single-speed ECM types. Do not use with multi-speed or variable-speed ECMs unless otherwise specified by the manufacturer.
Is a crankcase heater required?
Yes, a crankcase heater must be used in conjunction with this low ambient kit to protect the compressor against refrigerant migration during off-cycles in cold weather.
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: $244.08
-65%$244.08
$85.43York S1-2LA06700424 Ambient Kit
The York S1-2LA06700424 Ambient Kit is a field-installed pressure control solution engineered for R-410A refrigeration systems. Designed for single-stage split-system air conditioners and heat pumps, this kit permits reliable cooling operation in low-temperature environments down to 20°F (-7°C). By monitoring liquid line pressure, the integrated low ambient pressure switch cycles the outdoor fan motor to maintain optimal head pressure, ensuring the expansion device functions correctly and prevents evaporator coil freeze-ups.
This kit includes a heavy-duty pressure switch, wiring harness, and necessary fittings for a precise HXAC installation. For R-410A applications, the switch is factory-calibrated to energize the fan motor when liquid line pressure reaches 360 +/-10 PSIG and cut power when pressure drops below 240 +/-10 PSIG. To ensure component longevity and prevent liquid migration during low-temperature cycles, it is professional standard practice to install a crankcase heater and ensure the indoor coil is equipped with a Thermal Expansion Valve (TXV) when utilizing this control.
- Optimized Head Pressure: Maintains consistent condenser liquid pressure to ensure proper refrigerant metering during low outdoor temperatures.
- Extended Operating Range: Enables air conditioning operation in specialized environments down to 20 degrees Fahrenheit.
- Universal Compatibility: Designed for use with 120V to 600V AC single-phase PSC, shaded pole, or single-speed ECM fan motors.
- System Protection: Reduces the risk of compressor slugging and evaporator icing by maintaining stable operating differentials.
- Seamless Integration: Features a normally-closed relay configuration that breaks the fan circuit automatically based on real-time R410A pressure settings.
Common Questions
Can this kit be used on heat pumps?
Yes, but the control circuit must be wired through the 4-way reversing valve power to disable fan cycling while in heat mode, as head pressure regulation is only required during cooling cycles.
What motors are compatible with the S1-2LA06700424?
This kit is validated for use with single-phase motors, including Permanent Split Capacitor (PSC), shaded pole, and single-speed ECM types. Do not use with multi-speed or variable-speed ECMs unless otherwise specified by the manufacturer.
Is a crankcase heater required?
Yes, a crankcase heater must be used in conjunction with this low ambient kit to protect the compressor against refrigerant migration during off-cycles in cold weather.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The York S1-2LA06700424 Ambient Kit is a field-installed pressure control solution engineered for R-410A refrigeration systems. Designed for single-stage split-system air conditioners and heat pumps, this kit permits reliable cooling operation in low-temperature environments down to 20°F (-7°C). By monitoring liquid line pressure, the integrated low ambient pressure switch cycles the outdoor fan motor to maintain optimal head pressure, ensuring the expansion device functions correctly and prevents evaporator coil freeze-ups.
This kit includes a heavy-duty pressure switch, wiring harness, and necessary fittings for a precise HXAC installation. For R-410A applications, the switch is factory-calibrated to energize the fan motor when liquid line pressure reaches 360 +/-10 PSIG and cut power when pressure drops below 240 +/-10 PSIG. To ensure component longevity and prevent liquid migration during low-temperature cycles, it is professional standard practice to install a crankcase heater and ensure the indoor coil is equipped with a Thermal Expansion Valve (TXV) when utilizing this control.
- Optimized Head Pressure: Maintains consistent condenser liquid pressure to ensure proper refrigerant metering during low outdoor temperatures.
- Extended Operating Range: Enables air conditioning operation in specialized environments down to 20 degrees Fahrenheit.
- Universal Compatibility: Designed for use with 120V to 600V AC single-phase PSC, shaded pole, or single-speed ECM fan motors.
- System Protection: Reduces the risk of compressor slugging and evaporator icing by maintaining stable operating differentials.
- Seamless Integration: Features a normally-closed relay configuration that breaks the fan circuit automatically based on real-time R410A pressure settings.
Common Questions
Can this kit be used on heat pumps?
Yes, but the control circuit must be wired through the 4-way reversing valve power to disable fan cycling while in heat mode, as head pressure regulation is only required during cooling cycles.
What motors are compatible with the S1-2LA06700424?
This kit is validated for use with single-phase motors, including Permanent Split Capacitor (PSC), shaded pole, and single-speed ECM types. Do not use with multi-speed or variable-speed ECMs unless otherwise specified by the manufacturer.
Is a crankcase heater required?
Yes, a crankcase heater must be used in conjunction with this low ambient kit to protect the compressor against refrigerant migration during off-cycles in cold weather.
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.












