Ranco A30-180 Refrigeration Control

The Ranco A30-180 Refrigeration Control is a veteran-grade constant differential cold control designed for precise regulation of commercial refrigeration systems, ice machines, and beverage dispensers. This SPST cold control is engineered with a laser-welded stainless steel bellows to ensure consistent pressure response and long-term mechanical reliability. With a 42 inch capillary length, it provides the physical reach required for complex evaporator placements and cabinet internal routing. This specific model features a set 13 degree differential, with a cold-off temperature of -4°F and a warm-on setting of 38°F, making it a highly versatile commercial refrigerator thermostat for field replacements. The inclusion of break-off shafts allows for rapid adaptation to various knob depths, ensuring it remains an essential component for technicians maintaining vintage chest freezers or modern reach-in units. High-amperage contacts (20A at 120/240V AC) provide the robust electrical switching necessary for direct compressor control without premature pitting or terminal failure.

• Constant Differential Performance: Maintains a fixed 13°F swing to prevent short-cycling and ensure stable temperature gradients.
• High Amperage Rating: Rated for 20 Amp full load current, allowing for direct handling of heavy inductive motor loads.
• Universal Field Adaptability: Includes break-off shafts and 1/4 inch quick-connect terminals to fit a wide range of mounting configurations.
• Wide Operating Range: Covers a temperature span from -4°F (Cold Off) to 38°F (Warm On), suitable for both mid-temp and low-temp applications.
• Reliable Sensing: The 42" vapor-filled capillary tube provides accurate pneumatic action in response to evaporator coil or ambient air temperatures.

• How do I adjust the temperature range on this control? While the differential is constant, the range can be shifted using the adjustment screw to account for specific cabinet requirements or altitude corrections.
• Is the Ranco A30-180 compatible with antique refrigerators? Yes, this is a preferred service replacement for vintage GE, Kelvinator, and Westinghouse units requiring an SPST switch with an "Off" position.
• Can this be used for walk-in freezer defrost cycles? While primarily a cold control, it is commonly utilized for off-cycle defrost in commercial refrigerators and as a primary thermostat for small ice machines.

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.