
Trane CNT4831 Control
When you're troubleshooting a compressor that won't kick over or is cutting out pre-maturely, the Trane CNT4831 Control is a critical diagnostic point. This OEM Trane low pressure switch is designed as a SPST (Single Pole Single Throw) safety device to prevent compressor slugging and catastrophic failure due to loss of charge or restricted metering devices. With a factory-calibrated cut-out of 25 PSI and a cut-in of 45 PSI, this control ensures the system maintains sufficient suction pressure before allowing the contactor to pull in. Built for heavy-duty HVAC pressure control applications, the Trane pressure switch CNT4831 handles up to 250V and features standard 18 AWG lead wires for easy integration into existing wiring harnesses. It is frequently utilized in 3-10 ton packaged cooling units and residential heat pump systems. Replacing a faulty refrigerant low pressure cutout with this genuine Trane replacement part preserves the engineered safety limits of the equipment, preventing the short-cycling often seen with generic alternatives.
Key Benefits for the Technician- Precision Calibration: Reliable 25 PSI Open / 45 PSI Close range prevents low-ambient trip-outs while ensuring maximum compressor protection.
- Durable SPST Action: High-quality SPST low pressure control contacts designed for high-cycle industrial and residential environments.
- Direct OEM Fit: Guaranteed compatibility with specified Trane and American Standard rooftop units and split systems, eliminating field modifications.
- Broad Operating Range: Rated for temperatures from -30 to 85 degrees, making it suitable for year-round Trane HVAC troubleshooting.
- How do I test if the Trane CNT4831 is faulty? Use your gauges to check actual suction pressure. If suction is above 45 PSI and the switch is still open (infinite resistance), the internal bellows or contacts have failed.
- Can this switch be used with R-410A systems? Yes, while settings vary by application, this 25/45 PSI switch is commonly used as a low pressure cutout for R-410A and R-22 circuits depending on the specific equipment design.
- What causes this switch to trip frequently? Frequent trips usually indicate a restricted filter drier, a failing TXV, or a low refrigerant charge rather than a switch failure.
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: $68.58
-65%$68.58
$24.00Trane CNT4831 Control
When you're troubleshooting a compressor that won't kick over or is cutting out pre-maturely, the Trane CNT4831 Control is a critical diagnostic point. This OEM Trane low pressure switch is designed as a SPST (Single Pole Single Throw) safety device to prevent compressor slugging and catastrophic failure due to loss of charge or restricted metering devices. With a factory-calibrated cut-out of 25 PSI and a cut-in of 45 PSI, this control ensures the system maintains sufficient suction pressure before allowing the contactor to pull in. Built for heavy-duty HVAC pressure control applications, the Trane pressure switch CNT4831 handles up to 250V and features standard 18 AWG lead wires for easy integration into existing wiring harnesses. It is frequently utilized in 3-10 ton packaged cooling units and residential heat pump systems. Replacing a faulty refrigerant low pressure cutout with this genuine Trane replacement part preserves the engineered safety limits of the equipment, preventing the short-cycling often seen with generic alternatives.
Key Benefits for the Technician- Precision Calibration: Reliable 25 PSI Open / 45 PSI Close range prevents low-ambient trip-outs while ensuring maximum compressor protection.
- Durable SPST Action: High-quality SPST low pressure control contacts designed for high-cycle industrial and residential environments.
- Direct OEM Fit: Guaranteed compatibility with specified Trane and American Standard rooftop units and split systems, eliminating field modifications.
- Broad Operating Range: Rated for temperatures from -30 to 85 degrees, making it suitable for year-round Trane HVAC troubleshooting.
- How do I test if the Trane CNT4831 is faulty? Use your gauges to check actual suction pressure. If suction is above 45 PSI and the switch is still open (infinite resistance), the internal bellows or contacts have failed.
- Can this switch be used with R-410A systems? Yes, while settings vary by application, this 25/45 PSI switch is commonly used as a low pressure cutout for R-410A and R-22 circuits depending on the specific equipment design.
- What causes this switch to trip frequently? Frequent trips usually indicate a restricted filter drier, a failing TXV, or a low refrigerant charge rather than a switch failure.
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
When you're troubleshooting a compressor that won't kick over or is cutting out pre-maturely, the Trane CNT4831 Control is a critical diagnostic point. This OEM Trane low pressure switch is designed as a SPST (Single Pole Single Throw) safety device to prevent compressor slugging and catastrophic failure due to loss of charge or restricted metering devices. With a factory-calibrated cut-out of 25 PSI and a cut-in of 45 PSI, this control ensures the system maintains sufficient suction pressure before allowing the contactor to pull in. Built for heavy-duty HVAC pressure control applications, the Trane pressure switch CNT4831 handles up to 250V and features standard 18 AWG lead wires for easy integration into existing wiring harnesses. It is frequently utilized in 3-10 ton packaged cooling units and residential heat pump systems. Replacing a faulty refrigerant low pressure cutout with this genuine Trane replacement part preserves the engineered safety limits of the equipment, preventing the short-cycling often seen with generic alternatives.
Key Benefits for the Technician- Precision Calibration: Reliable 25 PSI Open / 45 PSI Close range prevents low-ambient trip-outs while ensuring maximum compressor protection.
- Durable SPST Action: High-quality SPST low pressure control contacts designed for high-cycle industrial and residential environments.
- Direct OEM Fit: Guaranteed compatibility with specified Trane and American Standard rooftop units and split systems, eliminating field modifications.
- Broad Operating Range: Rated for temperatures from -30 to 85 degrees, making it suitable for year-round Trane HVAC troubleshooting.
- How do I test if the Trane CNT4831 is faulty? Use your gauges to check actual suction pressure. If suction is above 45 PSI and the switch is still open (infinite resistance), the internal bellows or contacts have failed.
- Can this switch be used with R-410A systems? Yes, while settings vary by application, this 25/45 PSI switch is commonly used as a low pressure cutout for R-410A and R-22 circuits depending on the specific equipment design.
- What causes this switch to trip frequently? Frequent trips usually indicate a restricted filter drier, a failing TXV, or a low refrigerant charge rather than a switch failure.
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.












