The Ranco ETC-111000-000 is a microprocessor-based single-stage electronic temperature controller for commercial HVAC and refrigeration systems. This SPDT on/off controller replaces traditional electromechanical thermostats with precision temperature regulation across a setpoint range of −30°F to 220°F (−34.4°C to 104.4°C). The unit accepts 120 VAC, 208 VAC, or 240 VAC input and delivers configurable differential control from 1°F to 30°F (1°C to 16°C).
Technical Specifications
• Input Voltage: 120 VAC, 208 VAC, 240 VAC
• Power Consumption: 100 mA @ 120/208/240 VAC
• Temperature Setpoint Range: −30°F to 220°F (−34.4°C to 104.4°C)
• Differential Range: 1°F to 30°F (1°C to 16°C)
• Switch Type: SPDT; Open/Close on Rise action
• Relay Output (NO): 16 A FLA / 96 A LRA @ 120 V; 8 A FLA / 48 A LRA @ 208 V; 5.8 A FLA / 34.8 A LRA @ 240 V; 1/4 HP @ 120 V/208−240 V
• Relay Output (NC): 5.8 A FLA @ 120 V; 2.9 A FLA @ 240 V
• Pilot Duty: 125 VA @ 120/208/240 VAC
• Resistive Load: 15 A @ 120 VAC; 8 A @ 208/240 VAC
• Sensor Type: Thermistor with 8-foot cable lead; 2″ long × 1/4″ diameter
• Remote Sensing: Extendable to 400 feet using 18 or 22-gauge thermostat wire
• Sensor Rating: IP67 (dust and water resistance to 1 meter) – Key Features • LCD display with white backlight showing temperature, setpoint, and relay status
• User-friendly keypad with 1-degree resolution programming
• Selectable Fahrenheit or Celsius operation
• Heating or cooling mode configuration
• EEPROM memory preserves settings through power loss
• Keypad lockout prevents unauthorized modifications
• Built-in diagnostics with error code display
• Four-step setup procedure – Typical Applications Commercial heating, cooling, air conditioning, and refrigeration systems requiring single-stage temperature control beyond standard thermostat capability. – Compatibility & Integration Designed as a direct replacement for legacy electromechanical temperature controls in ETC Series installations. Compatible with standard thermostat wiring practices.
