| Code | Meaning | Typical Range | |------|---------|----------------| | | Set temp (target) | -50 to 120°C | | HD | Heating differential | 0.5 – 10°C | | CD | Cooling differential | 0.5 – 10°C | | PT | Anti-short cycle delay (compressor) | 0 – 10 min | | CA | Temperature calibration | -10 to +10°C |
Most FourTech controllers share a standard layout: fourtech temperature controller manual
Because there are several models (single display, dual display, different sizes like 1/4 DIN, 1/16 DIN), this guide covers the for the vast majority of Fourtech digital temperature controllers. | Code | Meaning | Typical Range |
Before diving into programming, it is critical to understand that FourTech produces multiple generations of controllers. While this guide provides universal steps, the official for your specific model is essential for: different sizes like 1/4 DIN
: To stop "noise" from messing with readings, use shielded wires for sensors and keep them far away from power lines.
