White-Rodgers 1609-105 Control

The White-Rodgers 1609-105 is a heavy-duty, industrial-grade refrigeration temperature control engineered for precision in commercial cooling applications. This SPST temperature controller features a wide operating range of -30°F to 90°F, making it a versatile choice for walk-in coolers, ice bank systems, and specialized industrial equipment. It utilizes a hydraulic action element for consistent sensing accuracy, paired with a 5-foot capillary tube that allows for flexible remote bulb placement.

Designed for professional installation, the unit is housed in a dustproof steel case equipped with top and bottom knockouts for efficient wiring. The close on rise switch action—meaning contacts close as the temperature increases—allows for direct control of compressors or refrigerant solenoid valves without the immediate need for auxiliary relays in many line voltage configurations. With an adjustable differential of 3.5°F to 40°F, technicians can fine-tune the cycling frequency to protect equipment from short-cycling and ensure stable thermal management.

• Universal Compatibility: Ideal for high-pressure or low-temperature HVACR applications requiring a 120/240VAC line voltage thermostat.
• Rugged Durability: The enclosure protects internal switch mechanisms from debris and environmental contaminants common in mechanical rooms.
• Precise Control: The clearly graduated temperature dial (Fahrenheit and Celsius) is viewable and adjustable through the cover for quick field calibrations.
• High Electrical Rating: Capable of handling significant inductive loads, often eliminating the cost of additional motor starters.

• What is the switch action for this model? This control is a close on rise (normally open) device, making it suitable for cooling-specific applications where the compressor should engage as the ambient temperature climbs.
• Can this be used for both refrigeration and heating? While the range is broad, the 1609-105 is specifically configured for cooling. For heating applications (open on rise), a different model in the 1600 series would be required.
• How do I adjust the temperature differential? The adjustable differential is managed via an internal setting that determines the spread between the "cut-in" and "cut-out" points, ensuring the system does not cycle too frequently.

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.