Lennox 44A97 Pressure Switch
The Lennox 44A97 Pressure Switch is a high-performance OEM high-pressure cutout designed to protect Lennox compressors and refrigeration circuits from excessive internal pressures. This 410# manual reset pressure switch actuates at 410 PSI, immediately interrupting the circuit to prevent catastrophic system failure. Unlike auto-reset switches, this SPST normally closed (NC) control requires a technician to manually intervene, ensuring that the root cause of the high-pressure event—such as a failed condenser fan motor, dirty coils, or refrigerant overcharge—is diagnosed and corrected before the system resumes operation.
Built for use in R-410A systems, the 44A97 features 40-inch leads for flexible installation and a contact rating of 120 VAC 375VA pilot duty. This robust HVAC safety switch is a direct replacement for several legacy Lennox part numbers, including 96C20, 85C87, and 43C44, and is compatible with various Lennox, Allied, and Armstrong residential and light commercial condensing units. Whether you are performing a routine service or a major repair, utilizing this genuine Lennox 44A9701 replacement ensures the electrical and mechanical integrity of your customer's equipment stays within factory specifications.
Key Benefits:- Precision Safety: Precise 410 PSI cutout protects HVAC compressors from terminal venting or mechanical damage.
- System Diagnostics: The manual reset mechanism forces a physical inspection of the system, preventing repetitive "short-cycling" on high-head pressure.
- Broad Compatibility: Cross-references with multiple legacy Lennox part numbers simplifies van stock and procurement for technicians.
- Industrial Grade Build: High-quality Sensata manufacturing ensures reliability in harsh outdoor environments and space-constrained control boxes.
- Can I bypass this switch for testing? While common for momentary diagnostic testing, the system must never be left operational without the 44A97 active, as it is the primary line of defense for the compressor.
- Why does this switch require a manual reset? It is designed to notify the operator of a serious fault that could cause permanent damage if left unaddressed by an HVAC professional.
- Is the 44A97 compatible with all refrigerants? This specific model is calibrated for 410 PSI, making it ideal for R-410A high-pressure applications; always verify your system’s technical data plate before install.
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: $44.80
-65%$44.80
$15.68Lennox 44A97 Pressure Switch
The Lennox 44A97 Pressure Switch is a high-performance OEM high-pressure cutout designed to protect Lennox compressors and refrigeration circuits from excessive internal pressures. This 410# manual reset pressure switch actuates at 410 PSI, immediately interrupting the circuit to prevent catastrophic system failure. Unlike auto-reset switches, this SPST normally closed (NC) control requires a technician to manually intervene, ensuring that the root cause of the high-pressure event—such as a failed condenser fan motor, dirty coils, or refrigerant overcharge—is diagnosed and corrected before the system resumes operation.
Built for use in R-410A systems, the 44A97 features 40-inch leads for flexible installation and a contact rating of 120 VAC 375VA pilot duty. This robust HVAC safety switch is a direct replacement for several legacy Lennox part numbers, including 96C20, 85C87, and 43C44, and is compatible with various Lennox, Allied, and Armstrong residential and light commercial condensing units. Whether you are performing a routine service or a major repair, utilizing this genuine Lennox 44A9701 replacement ensures the electrical and mechanical integrity of your customer's equipment stays within factory specifications.
Key Benefits:- Precision Safety: Precise 410 PSI cutout protects HVAC compressors from terminal venting or mechanical damage.
- System Diagnostics: The manual reset mechanism forces a physical inspection of the system, preventing repetitive "short-cycling" on high-head pressure.
- Broad Compatibility: Cross-references with multiple legacy Lennox part numbers simplifies van stock and procurement for technicians.
- Industrial Grade Build: High-quality Sensata manufacturing ensures reliability in harsh outdoor environments and space-constrained control boxes.
- Can I bypass this switch for testing? While common for momentary diagnostic testing, the system must never be left operational without the 44A97 active, as it is the primary line of defense for the compressor.
- Why does this switch require a manual reset? It is designed to notify the operator of a serious fault that could cause permanent damage if left unaddressed by an HVAC professional.
- Is the 44A97 compatible with all refrigerants? This specific model is calibrated for 410 PSI, making it ideal for R-410A high-pressure applications; always verify your system’s technical data plate before install.
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.
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Description
The Lennox 44A97 Pressure Switch is a high-performance OEM high-pressure cutout designed to protect Lennox compressors and refrigeration circuits from excessive internal pressures. This 410# manual reset pressure switch actuates at 410 PSI, immediately interrupting the circuit to prevent catastrophic system failure. Unlike auto-reset switches, this SPST normally closed (NC) control requires a technician to manually intervene, ensuring that the root cause of the high-pressure event—such as a failed condenser fan motor, dirty coils, or refrigerant overcharge—is diagnosed and corrected before the system resumes operation.
Built for use in R-410A systems, the 44A97 features 40-inch leads for flexible installation and a contact rating of 120 VAC 375VA pilot duty. This robust HVAC safety switch is a direct replacement for several legacy Lennox part numbers, including 96C20, 85C87, and 43C44, and is compatible with various Lennox, Allied, and Armstrong residential and light commercial condensing units. Whether you are performing a routine service or a major repair, utilizing this genuine Lennox 44A9701 replacement ensures the electrical and mechanical integrity of your customer's equipment stays within factory specifications.
Key Benefits:- Precision Safety: Precise 410 PSI cutout protects HVAC compressors from terminal venting or mechanical damage.
- System Diagnostics: The manual reset mechanism forces a physical inspection of the system, preventing repetitive "short-cycling" on high-head pressure.
- Broad Compatibility: Cross-references with multiple legacy Lennox part numbers simplifies van stock and procurement for technicians.
- Industrial Grade Build: High-quality Sensata manufacturing ensures reliability in harsh outdoor environments and space-constrained control boxes.
- Can I bypass this switch for testing? While common for momentary diagnostic testing, the system must never be left operational without the 44A97 active, as it is the primary line of defense for the compressor.
- Why does this switch require a manual reset? It is designed to notify the operator of a serious fault that could cause permanent damage if left unaddressed by an HVAC professional.
- Is the 44A97 compatible with all refrigerants? This specific model is calibrated for 410 PSI, making it ideal for R-410A high-pressure applications; always verify your system’s technical data plate before install.
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.
