Robertshaw 2703-022 Limit Control

The Robertshaw 2703-022 is a professional-grade evaporator low-limit control engineered to provide critical freeze protection in commercial and industrial refrigeration systems. This thermal limit switch features fixed setpoints with a cut-out temperature of 35°F and a cut-in temperature of 58°F, establishing a definitive 23°F differential. As a vital safety limit device, it monitors coil temperatures to prevent ice accumulation and potential compressor damage. The Robertshaw 2703-022 is built for heavy-duty service, often utilized as a freezestat in chiller applications or evaporator sections to interrupt the control circuit when temperatures approach the freezing point of water. Its robust SPST switch mechanism ensures reliable electrical interruption, while the compact housing allows for versatile mounting in tight mechanical spaces. For contractors performing system maintenance or HVAC part replacement, this control offers a dependable solution for maintaining optimal heat transfer efficiency by ensuring the evaporator remains clear of frost bottlenecks through precise temperature-based cycling.

• System Protection: Effectively prevents evaporator coil freeze-ups by shutting down the compressor when low-limit temperatures are reached.
• Fixed Setpoints: Pre-calibrated 35°F open and 58°F close logic eliminates the need for field adjustments and ensures consistent thermal protection.
• Universal Compatibility: Designed for seamless integration into various commercial refrigeration control circuits requiring an automatic reset limit.
• Durable Construction: Engineered to withstand the rigors of high-cycle industrial environments, providing long-term HVACR performance.

What is the primary function of the Robertshaw 2703-022?
This evaporator limit control acts as a safety switch that opens the electrical circuit at 35°F to stop cooling and closes it at 58°F to resume operation, preventing ice buildup on the coil.

Can this limit control be used in residential HVAC systems?
While primarily designed for commercial refrigeration and chillers, it can be used in any application requiring a 35°F/58°F temperature limit switch, provided the electrical ratings match the system requirements.

Does this unit require a manual reset?
No, the Robertshaw 2703-022 operates with an automatic reset, meaning it will restore the circuit once the sensed temperature rises to the 58°F close setpoint.

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.