Ranco A30-181 Refrigeration Control

The Ranco A30-181 is a robust constant differential temperature control engineered for precision in commercial refrigeration and freezing applications. This SPST cold control features a 84-inch capillary tube, providing extensive reach for versatile probe placement in walk-in coolers, vending machines, and reach-in freezers. Designed with a 13°F fixed differential, the Ranco A30-181 refrigeration control ensures stable compressor cycling by maintaining a consistent spread between cut-in and cut-out points. With a normal "On" temperature of 22°F and a normal "Off" of 9°F, this unit is built to manage evaporator coil temperatures effectively, preventing short-cycling and optimizing system efficiency. The inclusion of a break-off shaft and universal mounting bracket allows for rapid field replacement across multiple OEM platforms, making it a staple for any technician's truck stock.

• Wide Application Range: Ideal for beverage dispensers, ice machines, and commercial food storage units requiring a constant differential.
• Durable Construction: Features laser-welded stainless steel bellows and high-amperage contacts for long-term reliability under heavy electrical loads.
• Simplified Installation: Comes with a universal break-off shaft and dial knob to match existing cabinet hardware without modifications.
• Extended Reach: The 84" vapor-filled capillary allows for precise sensing in large evaporator housings or remote mounting locations.

What is the difference between a constant differential and a constant cut-in control?
A constant differential control like the A30-181 maintains a fixed temperature spread regardless of the dial setting. In contrast, a constant cut-in control (A30-2200 series) always turns the compressor back on at the same temperature to ensure a full defrost cycle is completed.

Can the A30-181 be used for walk-in freezer applications?
Yes, provided the temperature requirements align. The A30-181 technical specifications include a cold-off of -4°F and a warm-on of 41°F, making it suitable for medium-to-low temperature refrigeration circuits.

Does this control have a manual "Off" position?
Yes, this specific model is equipped with a positive "Off" position on the adjustment dial, allowing for manual system shutdown during maintenance or defrosting.

This item is not eligible for free shipping.

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.