Utica-Dunkirk 240004708 Switch
Ensure critical head pressure control with the Utica-Dunkirk 240004708, a high-performance 210-150 fan cycling switch engineered for commercial and industrial HVACR platforms. This OEM Utica-Dunkirk replacement part functions as a primary head pressure control switch, cycling the condenser fan to maintain optimal system pressures during low-ambient operations. Designed for heavy-duty reliability, it prevents evaporator freeze-ups and compressor slugging by regulating the fan motor based on precise refrigerant pressure differentials. The condenser fan cycle control features durable internal components housed in a tamper-proof assembly, utilizing a 1/4 inch SAE female flare fitting with a built-in valve core depressor for direct mounting. This SPST pressure switch simplifies low-ambient cooling kits by providing consistent fan cycling control, ensuring your equipment operates within its designed performance envelope regardless of external temperature fluctuations. This genuine component is the technician’s choice for restoring factory-spec operation to Utica-Dunkirk boilers and hydronic systems.
- Precise Pressure Regulation: Maintains stable head pressure at 210 PSI (open) and 150 PSI (close) to protect against compressor damage.
- Universal Compatibility: Designed to integrate seamlessly with a wide range of Utica-Dunkirk HVAC and boiler fan motors.
- Robust Construction: Features a hermetically sealed sensor for long-term stability and resistance to vibration and environmental stress.
- Easy Installation: The direct-mount flare connection allows for fast field replacement, minimizing system downtime.
Common Questions
How do I troubleshoot a fan that won’t cycle on?
First, verify voltage at the fan cycling switch terminals. If the pressure exceeds the cut-in set point and the SPST contacts remain open, the switch is likely faulty. Ensure there are no blockages in the refrigerant line or flare fitting.
Why is my HVAC system short-cycling?
Rapid cycling often points to incorrect pressure settings or low refrigerant levels. If the fan cycle control is malfunctioning, it may force the system off prematurely. Professional technicians should check for leaks and confirm the 210-150 pressure benchmarks.
Can this switch be used for low-ambient cooling?
Yes, this condenser fan cycling switch is specifically designed for low-ambient applications, allowing the AC or refrigeration system to operate safely when outdoor temperatures drop by managing head pressure.
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: $132.62
-65%$132.62
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Description
Ensure critical head pressure control with the Utica-Dunkirk 240004708, a high-performance 210-150 fan cycling switch engineered for commercial and industrial HVACR platforms. This OEM Utica-Dunkirk replacement part functions as a primary head pressure control switch, cycling the condenser fan to maintain optimal system pressures during low-ambient operations. Designed for heavy-duty reliability, it prevents evaporator freeze-ups and compressor slugging by regulating the fan motor based on precise refrigerant pressure differentials. The condenser fan cycle control features durable internal components housed in a tamper-proof assembly, utilizing a 1/4 inch SAE female flare fitting with a built-in valve core depressor for direct mounting. This SPST pressure switch simplifies low-ambient cooling kits by providing consistent fan cycling control, ensuring your equipment operates within its designed performance envelope regardless of external temperature fluctuations. This genuine component is the technician’s choice for restoring factory-spec operation to Utica-Dunkirk boilers and hydronic systems.
- Precise Pressure Regulation: Maintains stable head pressure at 210 PSI (open) and 150 PSI (close) to protect against compressor damage.
- Universal Compatibility: Designed to integrate seamlessly with a wide range of Utica-Dunkirk HVAC and boiler fan motors.
- Robust Construction: Features a hermetically sealed sensor for long-term stability and resistance to vibration and environmental stress.
- Easy Installation: The direct-mount flare connection allows for fast field replacement, minimizing system downtime.
Common Questions
How do I troubleshoot a fan that won’t cycle on?
First, verify voltage at the fan cycling switch terminals. If the pressure exceeds the cut-in set point and the SPST contacts remain open, the switch is likely faulty. Ensure there are no blockages in the refrigerant line or flare fitting.
Why is my HVAC system short-cycling?
Rapid cycling often points to incorrect pressure settings or low refrigerant levels. If the fan cycle control is malfunctioning, it may force the system off prematurely. Professional technicians should check for leaks and confirm the 210-150 pressure benchmarks.
Can this switch be used for low-ambient cooling?
Yes, this condenser fan cycling switch is specifically designed for low-ambient applications, allowing the AC or refrigeration system to operate safely when outdoor temperatures drop by managing head pressure.
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.
