Ranco O16-264 Temperature Control

The Ranco O16-264 Temperature Control is a heavy-duty SPDT medium temperature control designed for critical system protection in commercial refrigeration and HVACR applications. Engineered specifically as a freeze stat, this unit triggers an equipment shutdown when temperatures approach localized freezing points, preventing catastrophic failures such as ruptured chiller barrel tubes. It features a broad 0°F to 55°F temperature range and a 96-inch capillary for versatile sensor placement across coils or heat exchangers. As a manual reset temperature control, it ensures that a technician inspects the system before operation resumes, providing an essential layer of safety for self-contained refrigerators, walk-in coolers, and industrial chillers. The Robertshaw Ranco O16-264 is housed in a rugged NEMA 1 enclosure with a non-conductive cover and utilizes laser-welded bellows to maintain calibration accuracy over long-term cycling. With a 3°F to 20°F adjustable differential, it offers the precise mechanical switching required for complex HVAC refrigeration controls.

• System Protection: Primary function as a low-limit freeze protection switch to prevent ice buildup and mechanical damage.
• Installation Flexibility: Equipped with an extended 96-inch capillary tube for remote sensing in hard-to-reach evaporator or chiller locations.
• Heavy-Duty Switching: Features SPDT switch action rated for 17.0 FLA at 120/240V AC, suitable for direct compressor or fan control.
• Precision Tuning: Includes a 7-revolution range adjustment screw and a large, easy-to-read scale plate for accurate field setpoints.
• Durable Construction: Built with a NEMA 1 enclosure and captive cover screws to withstand demanding mechanical room environments.

Common Questions

Is the Ranco O16-264 an automatic or manual reset control?
This model is a manual reset control. Once the temperature drops below the setpoint and trips the switch, a technician must manually depress the reset button to restart the equipment. This is a critical safety feature for chiller protection.

What is the electrical rating for this SPDT control?
The unit is rated for 17.0 Full Load Amps (FLA) and 102.0 Locked Rotor Amps (LRA) at both 120V and 240V AC. It also supports pilot duty ratings of 720 VA at 120/240V.

Can this be used for both heating and cooling applications?
Yes, the Single Pole Double Throw (SPDT) switching allows for wiring to either break a circuit on temperature fall (for cooling/protection) or make a circuit on temperature fall (for alarm or heating indicators).

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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.