
Trane CNT0747 Presure Cutout
The Trane CNT0747 Pressure Cutout is a mission-critical manual reset low pressure switch engineered to protect compressors from damage due to refrigerant loss or coil freeze-ups. As a genuine OEM Trane replacement part, it ensures the precise calibration required to maintain system integrity in residential and light commercial HVAC units. This encapsulated pressure switch features a non-adjustable fixed setpoint, specifically designed to open at 7 PSI and close at 22 PSI. Constructed for high-reliability circuit interruption, the CNT0747 low pressure control utilizes quick-connect terminals for streamlined field installation. Its robust design handles a wide voltage range of 120V to 240V, making it a versatile HVAC safety switch for various Trane and American Standard air conditioning and heat pump systems. Proper installation of this low pressure cutout 7 open 22 close switch is essential for preventing compressor overheating and ensuring long-term equipment uptime.
Key Benefits:- Precise Pressure Calibration: Fixed settings at 7 PSI open and 22 PSI close provide accurate protection against low-suction conditions.
- OEM System Compatibility: Direct fit for numerous Trane and American Standard condenser models, eliminating mounting modifications.
- Durable Construction: The sealed hermetic design prevents moisture ingress and environmental contamination of the electrical contacts.
- High Voltage Versatility: Fully rated for both 120V and 240V control circuits, supporting various equipment platforms.
- Optimized Compressor Safety: Rapidly breaks the pilot circuit to stop the compressor before permanent mechanical damage occurs.
What causes a Trane CNT0747 to trip frequently?
Repeated tripping typically indicates a low refrigerant charge, a restricted liquid line filter drier, or a failing indoor blower motor causing a drop in evaporator pressure.
Is the CNT0747 a manual or automatic reset switch?
This specific low pressure cutout is designed to reset once the system pressure rises above the 22 PSI close setpoint, though some configurations may require a manual reset at the thermostat or control board depending on the system logic.
Can I use a universal pressure switch instead of the CNT0747?
While universal switches exist, using a genuine Trane CNT0747 ensures the exact 7/22 PSI pressure curve and terminal orientation required for the original equipment manufacturer's hardware specifications.
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: $38.93
-65%$38.93
$13.63Trane CNT0747 Presure Cutout
The Trane CNT0747 Pressure Cutout is a mission-critical manual reset low pressure switch engineered to protect compressors from damage due to refrigerant loss or coil freeze-ups. As a genuine OEM Trane replacement part, it ensures the precise calibration required to maintain system integrity in residential and light commercial HVAC units. This encapsulated pressure switch features a non-adjustable fixed setpoint, specifically designed to open at 7 PSI and close at 22 PSI. Constructed for high-reliability circuit interruption, the CNT0747 low pressure control utilizes quick-connect terminals for streamlined field installation. Its robust design handles a wide voltage range of 120V to 240V, making it a versatile HVAC safety switch for various Trane and American Standard air conditioning and heat pump systems. Proper installation of this low pressure cutout 7 open 22 close switch is essential for preventing compressor overheating and ensuring long-term equipment uptime.
Key Benefits:- Precise Pressure Calibration: Fixed settings at 7 PSI open and 22 PSI close provide accurate protection against low-suction conditions.
- OEM System Compatibility: Direct fit for numerous Trane and American Standard condenser models, eliminating mounting modifications.
- Durable Construction: The sealed hermetic design prevents moisture ingress and environmental contamination of the electrical contacts.
- High Voltage Versatility: Fully rated for both 120V and 240V control circuits, supporting various equipment platforms.
- Optimized Compressor Safety: Rapidly breaks the pilot circuit to stop the compressor before permanent mechanical damage occurs.
What causes a Trane CNT0747 to trip frequently?
Repeated tripping typically indicates a low refrigerant charge, a restricted liquid line filter drier, or a failing indoor blower motor causing a drop in evaporator pressure.
Is the CNT0747 a manual or automatic reset switch?
This specific low pressure cutout is designed to reset once the system pressure rises above the 22 PSI close setpoint, though some configurations may require a manual reset at the thermostat or control board depending on the system logic.
Can I use a universal pressure switch instead of the CNT0747?
While universal switches exist, using a genuine Trane CNT0747 ensures the exact 7/22 PSI pressure curve and terminal orientation required for the original equipment manufacturer's hardware specifications.
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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Product Information
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Description
The Trane CNT0747 Pressure Cutout is a mission-critical manual reset low pressure switch engineered to protect compressors from damage due to refrigerant loss or coil freeze-ups. As a genuine OEM Trane replacement part, it ensures the precise calibration required to maintain system integrity in residential and light commercial HVAC units. This encapsulated pressure switch features a non-adjustable fixed setpoint, specifically designed to open at 7 PSI and close at 22 PSI. Constructed for high-reliability circuit interruption, the CNT0747 low pressure control utilizes quick-connect terminals for streamlined field installation. Its robust design handles a wide voltage range of 120V to 240V, making it a versatile HVAC safety switch for various Trane and American Standard air conditioning and heat pump systems. Proper installation of this low pressure cutout 7 open 22 close switch is essential for preventing compressor overheating and ensuring long-term equipment uptime.
Key Benefits:- Precise Pressure Calibration: Fixed settings at 7 PSI open and 22 PSI close provide accurate protection against low-suction conditions.
- OEM System Compatibility: Direct fit for numerous Trane and American Standard condenser models, eliminating mounting modifications.
- Durable Construction: The sealed hermetic design prevents moisture ingress and environmental contamination of the electrical contacts.
- High Voltage Versatility: Fully rated for both 120V and 240V control circuits, supporting various equipment platforms.
- Optimized Compressor Safety: Rapidly breaks the pilot circuit to stop the compressor before permanent mechanical damage occurs.
What causes a Trane CNT0747 to trip frequently?
Repeated tripping typically indicates a low refrigerant charge, a restricted liquid line filter drier, or a failing indoor blower motor causing a drop in evaporator pressure.
Is the CNT0747 a manual or automatic reset switch?
This specific low pressure cutout is designed to reset once the system pressure rises above the 22 PSI close setpoint, though some configurations may require a manual reset at the thermostat or control board depending on the system logic.
Can I use a universal pressure switch instead of the CNT0747?
While universal switches exist, using a genuine Trane CNT0747 ensures the exact 7/22 PSI pressure curve and terminal orientation required for the original equipment manufacturer's hardware specifications.
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.












