Search results

I am wanting to replace my Sunvic TLX 2259 with a Honeywell DT90E but am unsure how to do so. I know the DT90E only requires 2 of the 3 current wires but which ones? If you look at the picture below it shows the current wiring, yellow cable to 1, red (live) to 3 and blue to 4. But from the...