
Marvair 70050 Pressure Switch
The Marvair 70050 Pressure Switch is a critical safety component designed for precise refrigerant monitoring in Marvair ComPac wall-mount air conditioners and heat pumps. This low-pressure switch (LPS) is engineered to prevent compressor damage by breaking the electrical circuit when system pressure falls below safe operating thresholds. With a factory-set open pressure of 35 PSI and a close pressure of 60 PSI, it ensures the system does not operate under hazardous low-charge conditions or during a total loss of refrigerant. This SPDT control provides an essential safeguard against compressor overheating and short cycling, which can lead to expensive HVAC repair costs and premature equipment failure. Built for durability in demanding industrial and commercial environments, the 70050 is a direct OEM replacement part that maintains the integrity of the original system specifications, specifically for refrigerant pressure monitoring in R-410A and legacy refrigerant applications where these thresholds are required.
Key Benefits for Technicians:- System Protection: Actively monitors for low-side pressure drops to prevent compressor burnout and internal damage.
- Precise Calibration: Features fixed 60 PSI close / 35 PSI open settings for consistent, non-adjustable reliability.
- OEM Compatibility: Designed specifically for use in Marvair ComPac vertical units, ensuring a perfect fit and correct electrical interface.
- Enhanced Efficiency: Minimizes unnecessary wear by preventing the unit from running in a low-efficiency, low-pressure state.
What causes a Marvair 70050 to trip?
This switch typically opens the circuit when it detects a pressure drop to 35 PSI, often caused by a refrigerant leak, a clogged filter drier, or a failing expansion valve.
Is the Marvair 70050 pressure switch adjustable?
No, this is a fixed-setting HVAC pressure control calibrated for a 35/60 PSI differential to ensure consistent safety without the risk of field-adjustment errors.
Can I use this on different Marvair models?
Yes, the 70050 is the standard low pressure switch for a wide range of ComPac models, including AVP20 through AVP60 series units.
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: $50.95
-65%$50.95
$17.83Marvair 70050 Pressure Switch
The Marvair 70050 Pressure Switch is a critical safety component designed for precise refrigerant monitoring in Marvair ComPac wall-mount air conditioners and heat pumps. This low-pressure switch (LPS) is engineered to prevent compressor damage by breaking the electrical circuit when system pressure falls below safe operating thresholds. With a factory-set open pressure of 35 PSI and a close pressure of 60 PSI, it ensures the system does not operate under hazardous low-charge conditions or during a total loss of refrigerant. This SPDT control provides an essential safeguard against compressor overheating and short cycling, which can lead to expensive HVAC repair costs and premature equipment failure. Built for durability in demanding industrial and commercial environments, the 70050 is a direct OEM replacement part that maintains the integrity of the original system specifications, specifically for refrigerant pressure monitoring in R-410A and legacy refrigerant applications where these thresholds are required.
Key Benefits for Technicians:- System Protection: Actively monitors for low-side pressure drops to prevent compressor burnout and internal damage.
- Precise Calibration: Features fixed 60 PSI close / 35 PSI open settings for consistent, non-adjustable reliability.
- OEM Compatibility: Designed specifically for use in Marvair ComPac vertical units, ensuring a perfect fit and correct electrical interface.
- Enhanced Efficiency: Minimizes unnecessary wear by preventing the unit from running in a low-efficiency, low-pressure state.
What causes a Marvair 70050 to trip?
This switch typically opens the circuit when it detects a pressure drop to 35 PSI, often caused by a refrigerant leak, a clogged filter drier, or a failing expansion valve.
Is the Marvair 70050 pressure switch adjustable?
No, this is a fixed-setting HVAC pressure control calibrated for a 35/60 PSI differential to ensure consistent safety without the risk of field-adjustment errors.
Can I use this on different Marvair models?
Yes, the 70050 is the standard low pressure switch for a wide range of ComPac models, including AVP20 through AVP60 series units.
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 Marvair 70050 Pressure Switch is a critical safety component designed for precise refrigerant monitoring in Marvair ComPac wall-mount air conditioners and heat pumps. This low-pressure switch (LPS) is engineered to prevent compressor damage by breaking the electrical circuit when system pressure falls below safe operating thresholds. With a factory-set open pressure of 35 PSI and a close pressure of 60 PSI, it ensures the system does not operate under hazardous low-charge conditions or during a total loss of refrigerant. This SPDT control provides an essential safeguard against compressor overheating and short cycling, which can lead to expensive HVAC repair costs and premature equipment failure. Built for durability in demanding industrial and commercial environments, the 70050 is a direct OEM replacement part that maintains the integrity of the original system specifications, specifically for refrigerant pressure monitoring in R-410A and legacy refrigerant applications where these thresholds are required.
Key Benefits for Technicians:- System Protection: Actively monitors for low-side pressure drops to prevent compressor burnout and internal damage.
- Precise Calibration: Features fixed 60 PSI close / 35 PSI open settings for consistent, non-adjustable reliability.
- OEM Compatibility: Designed specifically for use in Marvair ComPac vertical units, ensuring a perfect fit and correct electrical interface.
- Enhanced Efficiency: Minimizes unnecessary wear by preventing the unit from running in a low-efficiency, low-pressure state.
What causes a Marvair 70050 to trip?
This switch typically opens the circuit when it detects a pressure drop to 35 PSI, often caused by a refrigerant leak, a clogged filter drier, or a failing expansion valve.
Is the Marvair 70050 pressure switch adjustable?
No, this is a fixed-setting HVAC pressure control calibrated for a 35/60 PSI differential to ensure consistent safety without the risk of field-adjustment errors.
Can I use this on different Marvair models?
Yes, the 70050 is the standard low pressure switch for a wide range of ComPac models, including AVP20 through AVP60 series units.
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.











