Ranco ETC-241000-000 Control

The Ranco ETC-241000-000 is an industrial-grade two-stage electronic temperature control engineered for high-precision thermal management in demanding environments. This microprocessor-based controller facilitates a wide setpoint range from -30°F to 220°F, making it the standard choice for dual-stage HVACR applications, including walk-in coolers, cooling towers, and agricultural ventilation systems. Encased in a rugged NEMA 4X enclosure, the unit is fully watertight and corrosion-resistant, meeting NEC Article 547 requirements for livestock and poultry facilities. The 120/240V AC multi-voltage input provides field flexibility, while the dual SPDT relay outputs allow for independent stage configuration to manage heating, cooling, or overlapping stage operations without complex interstage calculations. Technical features like the anti-short cycle compressor delay and EEPROM memory—which retains all programmed parameters during power loss—ensure system stability. Use the integrated LCD display and tactile keypad for 1° resolution adjustments and real-time sensor monitoring.

Key Benefits

• Dual-Stage Precision: Individually programmable stages allow for versatile heating and cooling control configurations.
• Environmental Protection: The NEMA 4X rated housing ensures reliable operation in wash-down areas and outdoor installations.
• Extended Sensing: Includes an 8-foot thermistor sensor, extendable up to 400 feet for remote monitoring of refrigeration systems.
• System Security: An internal keypad lockout switch prevents unauthorized setpoint tampering by end-users.
• Diagnostic Reliability: Built-in error codes assist technicians in rapid troubleshooting of hardware or sensor faults.

Common Questions

How do I wire the Ranco ETC-241000-000 for 240V applications?
The controller features a universal power supply; for 240V operation, connect your line voltage to the identified terminals according to the internal wiring diagram, ensuring the jumper settings (if applicable) match your input requirements.

Can this controller manage both a heater and a cooler simultaneously?
Yes, the two-stage digital thermostat allows Stage 1 and Stage 2 to be set to different modes (Heat or Cool), enabling customized differential and setpoint management for complex HVACR cycles.

What is the maximum sensor distance for this unit?
While provided with an 8-foot lead, the thermistor can be extended up to 400 feet using standard 22 AWG thermostat wire without compromising the accuracy of the electronic temperature controller.

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.