Always disconnect the power supply before wiring the device to prevent electrical shock or damage. The back of the STC-600 features numbered terminal slots: Power supply input (220VAC). Terminal 3: Common line for the relays. Terminal 4: Compressor / Cooling output.
To program your STC-600, you must navigate its internal settings menu. Follow these steps to adjust your system preferences. How to Change Parameters
: A three-digit LED display accompanied by status lights for "Set," "Refrigeration," "Defrost," and "Fan". High Relay Capacity : Many models support up to 30A/220VAC for heavy-duty compressor and defrost systems. Technical Specifications Standard Value plus or minus 1 raised to the composed with power C Power Consumption Ambient Temperature 0 raised to the composed with power C 60 raised to the composed with power C Mounting Size Housing Protection Programming & Setup According to the STC-600 Instructions , basic operations include: Setting the Set Point Stc-600 Temperature Controller Manual Pdf
Defrost or Alarm output relay. This can be configured to manage an electric defrost heater or trigger an external audible alarm. Installation Steps
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On when the compressor is running; flashing during the start-up delay protection period.
| Terminal Label | Recommended Function (Wire Colors for Reference) | | :--- | :--- | | | | | L / N / AC | Connect to the 220VAC 50Hz mains power supply. | | Ground (⏚) | Connect to the unit's safety ground wire. | | Sensor Input | | | Sensor / S1 / S2 | Connect the 2-wire NTC temperature sensor. Important : This connection is non-polarized (it does not matter which wire goes where). | | Load Outputs | | | Compressor | Connect these terminals to the compressor's contactor or relay coil. Terminal capacity : 30A. | | Defrost | Connect these terminals to the defrost heater's contactor or relay coil. Terminal capacity : 10A. | | Fan | Connect these terminals to the evaporator fan's contactor or relay coil. | Always disconnect the power supply before wiring the
A: Yes. Set F3 (cooling delay) to 5 minutes to protect the freezer's compressor. This is the most critical safety rule in the manual.
If you need a physical copy of this manual for your workbench, you can print this page or use your browser's "Print to PDF" option to generate an offline . To help customize this guide further, let me know: Terminal 4: Compressor / Cooling output
Compressor start delay protection is active. Defrost Light (On): Defrost cycle is currently running. 4. How to Program the STC-600 (Parameter Settings)