Robertshaw 2703-022 Control
The Robertshaw 2703-022 Evaporator Low-Limit Control is a critical safety component engineered to prevent evaporator coil freezing in commercial refrigeration and industrial cooling systems. This electronic low-limit control features a 10-foot capillary tube sensor, providing the necessary length for precise positioning across the coil surface to monitor localized temperature drops. With a fixed operating profile, the switch is designed to open at 35°F to interrupt the compressor circuit and close at 58°F once the temperature rises, effectively managing the defrost cycle and preventing ice accumulation. This HVAC safety control is built for durability, rated for up to 100,000 cycles, ensuring long-term reliability in demanding environments with a temperature sensing range spanning from -40°F to 100°F. The manual reset functionality provides a necessary layer of protection, requiring technician intervention to verify system integrity before restarting after a low-limit event.
Key Benefits:- Freeze Protection: Automatically shuts down equipment when temperatures reach 35°F to prevent evaporator icing.
- Extended Reach: Includes a 10-foot 1/8-inch capillary tube for flexible mounting and comprehensive coil coverage.
- Heavy-Duty Reliability: Rated for a service life of 100,000 cycles, making it ideal for commercial HVACR applications.
- Precise Differential: Maintains a 3°F differential for accurate regulation and safety within a narrow temperature band.
- Universal Compact Design: Low-profile housing allows for easy integration into standard control panels and confined spaces.
What happens if the capillary tube is kinked during installation?
A kinked capillary tube will restrict the movement of the internal sensing fluid, leading to inaccurate temperature readings or total control failure. Always maintain a minimum bend radius to ensure the Robertshaw 2703-022 operates within its calibrated 35°F to 58°F range.
Can this control be used for high-side pressure protection?
No, the 2703-022 is specifically a temperature-actuated limit control designed for the low side of the system. It monitors thermal conditions at the evaporator coil rather than system refrigerant pressures.
How does the manual reset feature improve system safety?
Unlike automatic reset controls that may allow a system to short-cycle during a freeze-up, the manual reset ensures a contractor can diagnose the cause of the low-temperature condition—such as a blocked filter or failed fan motor—before resuming operation.
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: $21.52
-65%$21.52
$7.53Robertshaw 2703-022 Control
The Robertshaw 2703-022 Evaporator Low-Limit Control is a critical safety component engineered to prevent evaporator coil freezing in commercial refrigeration and industrial cooling systems. This electronic low-limit control features a 10-foot capillary tube sensor, providing the necessary length for precise positioning across the coil surface to monitor localized temperature drops. With a fixed operating profile, the switch is designed to open at 35°F to interrupt the compressor circuit and close at 58°F once the temperature rises, effectively managing the defrost cycle and preventing ice accumulation. This HVAC safety control is built for durability, rated for up to 100,000 cycles, ensuring long-term reliability in demanding environments with a temperature sensing range spanning from -40°F to 100°F. The manual reset functionality provides a necessary layer of protection, requiring technician intervention to verify system integrity before restarting after a low-limit event.
Key Benefits:- Freeze Protection: Automatically shuts down equipment when temperatures reach 35°F to prevent evaporator icing.
- Extended Reach: Includes a 10-foot 1/8-inch capillary tube for flexible mounting and comprehensive coil coverage.
- Heavy-Duty Reliability: Rated for a service life of 100,000 cycles, making it ideal for commercial HVACR applications.
- Precise Differential: Maintains a 3°F differential for accurate regulation and safety within a narrow temperature band.
- Universal Compact Design: Low-profile housing allows for easy integration into standard control panels and confined spaces.
What happens if the capillary tube is kinked during installation?
A kinked capillary tube will restrict the movement of the internal sensing fluid, leading to inaccurate temperature readings or total control failure. Always maintain a minimum bend radius to ensure the Robertshaw 2703-022 operates within its calibrated 35°F to 58°F range.
Can this control be used for high-side pressure protection?
No, the 2703-022 is specifically a temperature-actuated limit control designed for the low side of the system. It monitors thermal conditions at the evaporator coil rather than system refrigerant pressures.
How does the manual reset feature improve system safety?
Unlike automatic reset controls that may allow a system to short-cycle during a freeze-up, the manual reset ensures a contractor can diagnose the cause of the low-temperature condition—such as a blocked filter or failed fan motor—before resuming operation.
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 Robertshaw 2703-022 Evaporator Low-Limit Control is a critical safety component engineered to prevent evaporator coil freezing in commercial refrigeration and industrial cooling systems. This electronic low-limit control features a 10-foot capillary tube sensor, providing the necessary length for precise positioning across the coil surface to monitor localized temperature drops. With a fixed operating profile, the switch is designed to open at 35°F to interrupt the compressor circuit and close at 58°F once the temperature rises, effectively managing the defrost cycle and preventing ice accumulation. This HVAC safety control is built for durability, rated for up to 100,000 cycles, ensuring long-term reliability in demanding environments with a temperature sensing range spanning from -40°F to 100°F. The manual reset functionality provides a necessary layer of protection, requiring technician intervention to verify system integrity before restarting after a low-limit event.
Key Benefits:- Freeze Protection: Automatically shuts down equipment when temperatures reach 35°F to prevent evaporator icing.
- Extended Reach: Includes a 10-foot 1/8-inch capillary tube for flexible mounting and comprehensive coil coverage.
- Heavy-Duty Reliability: Rated for a service life of 100,000 cycles, making it ideal for commercial HVACR applications.
- Precise Differential: Maintains a 3°F differential for accurate regulation and safety within a narrow temperature band.
- Universal Compact Design: Low-profile housing allows for easy integration into standard control panels and confined spaces.
What happens if the capillary tube is kinked during installation?
A kinked capillary tube will restrict the movement of the internal sensing fluid, leading to inaccurate temperature readings or total control failure. Always maintain a minimum bend radius to ensure the Robertshaw 2703-022 operates within its calibrated 35°F to 58°F range.
Can this control be used for high-side pressure protection?
No, the 2703-022 is specifically a temperature-actuated limit control designed for the low side of the system. It monitors thermal conditions at the evaporator coil rather than system refrigerant pressures.
How does the manual reset feature improve system safety?
Unlike automatic reset controls that may allow a system to short-cycle during a freeze-up, the manual reset ensures a contractor can diagnose the cause of the low-temperature condition—such as a blocked filter or failed fan motor—before resuming operation.
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.
