Trane CNT4959 Control
The Trane CNT4959 Control is a critical low pressure switch designed for commercial HVAC maintenance and high-performance system protection. As a genuine Trane OEM replacement part, it ensures precise refrigerant loss protection by monitoring pressure thresholds to prevent compressor damage. This encapsulated pressure control features a close-on-rise logic, specifically calibrated with an open pressure of 25 PSI and a close pressure of 41 PSI.
Built for the rigors of field service, the Trane CNT04959 is engineered for a direct-fit installation into TCD rooftop units and other light commercial applications. It utilizes high-visibility blue lead wires for rapid circuit identification during troubleshooting. With electrical ratings of 6.0 FLA and 36 LRA at 120/240 VAC, this switch maintains technical integrity across diverse HVAC voltage requirements. Replacing a legacy or failing low-pressure cutout with this authentic OEM component ensures the refrigeration circuit operates within factory-specified safety parameters, preserving system longevity and compressor reliability.
Key Benefits:
- Precision Calibration: Reliable 25 PSI open / 41 PSI close settings for accurate low-side monitoring.
- OEM Compatibility: Exact replacement for Trane CNT4959 and CNT04959 part numbers.
- Durable Construction: Encapsulated design resists moisture and debris in harsh HVAC environments.
- Standard Wiring: Integrated blue leads simplify pressure switch replacement in the field.
Common Questions:
- Is the Trane CNT4959 compatible with R-410A systems? Yes, while typically used in specific low-pressure legs of the circuit, it is designed for compatibility with standard HVAC refrigerants based on the 25/41 PSI threshold.
- Does this switch require manual reset? No, this is an automatic reset pressure control that closes the circuit once pressure rises back to 41 PSI.
- What happens if my system stays below 25 PSI? The CNT4959 will remain open, cutting the 24V signal to the contactor to protect the HVAC compressor from running during a low-charge condition.
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: $73.31
-65%$73.31
$25.66Trane CNT4959 Control
The Trane CNT4959 Control is a critical low pressure switch designed for commercial HVAC maintenance and high-performance system protection. As a genuine Trane OEM replacement part, it ensures precise refrigerant loss protection by monitoring pressure thresholds to prevent compressor damage. This encapsulated pressure control features a close-on-rise logic, specifically calibrated with an open pressure of 25 PSI and a close pressure of 41 PSI.
Built for the rigors of field service, the Trane CNT04959 is engineered for a direct-fit installation into TCD rooftop units and other light commercial applications. It utilizes high-visibility blue lead wires for rapid circuit identification during troubleshooting. With electrical ratings of 6.0 FLA and 36 LRA at 120/240 VAC, this switch maintains technical integrity across diverse HVAC voltage requirements. Replacing a legacy or failing low-pressure cutout with this authentic OEM component ensures the refrigeration circuit operates within factory-specified safety parameters, preserving system longevity and compressor reliability.
Key Benefits:
- Precision Calibration: Reliable 25 PSI open / 41 PSI close settings for accurate low-side monitoring.
- OEM Compatibility: Exact replacement for Trane CNT4959 and CNT04959 part numbers.
- Durable Construction: Encapsulated design resists moisture and debris in harsh HVAC environments.
- Standard Wiring: Integrated blue leads simplify pressure switch replacement in the field.
Common Questions:
- Is the Trane CNT4959 compatible with R-410A systems? Yes, while typically used in specific low-pressure legs of the circuit, it is designed for compatibility with standard HVAC refrigerants based on the 25/41 PSI threshold.
- Does this switch require manual reset? No, this is an automatic reset pressure control that closes the circuit once pressure rises back to 41 PSI.
- What happens if my system stays below 25 PSI? The CNT4959 will remain open, cutting the 24V signal to the contactor to protect the HVAC compressor from running during a low-charge condition.
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
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Shipping & Returns
Description
The Trane CNT4959 Control is a critical low pressure switch designed for commercial HVAC maintenance and high-performance system protection. As a genuine Trane OEM replacement part, it ensures precise refrigerant loss protection by monitoring pressure thresholds to prevent compressor damage. This encapsulated pressure control features a close-on-rise logic, specifically calibrated with an open pressure of 25 PSI and a close pressure of 41 PSI.
Built for the rigors of field service, the Trane CNT04959 is engineered for a direct-fit installation into TCD rooftop units and other light commercial applications. It utilizes high-visibility blue lead wires for rapid circuit identification during troubleshooting. With electrical ratings of 6.0 FLA and 36 LRA at 120/240 VAC, this switch maintains technical integrity across diverse HVAC voltage requirements. Replacing a legacy or failing low-pressure cutout with this authentic OEM component ensures the refrigeration circuit operates within factory-specified safety parameters, preserving system longevity and compressor reliability.
Key Benefits:
- Precision Calibration: Reliable 25 PSI open / 41 PSI close settings for accurate low-side monitoring.
- OEM Compatibility: Exact replacement for Trane CNT4959 and CNT04959 part numbers.
- Durable Construction: Encapsulated design resists moisture and debris in harsh HVAC environments.
- Standard Wiring: Integrated blue leads simplify pressure switch replacement in the field.
Common Questions:
- Is the Trane CNT4959 compatible with R-410A systems? Yes, while typically used in specific low-pressure legs of the circuit, it is designed for compatibility with standard HVAC refrigerants based on the 25/41 PSI threshold.
- Does this switch require manual reset? No, this is an automatic reset pressure control that closes the circuit once pressure rises back to 41 PSI.
- What happens if my system stays below 25 PSI? The CNT4959 will remain open, cutting the 24V signal to the contactor to protect the HVAC compressor from running during a low-charge condition.
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.
