I have a query to, I have the diabolicial Siemens Wireless Thermostat which has finally given up after a tumultuous three years!!
I bought a Horstmann DRT2 and obviously the wiring is totally different. In the Siemens I have the following cables:
White connected to LX
Black connected to L1
Brown connected to L
Blue connected to N
On the Horstmann DRT2, I only have COM, NO and NC
Any help of advice is most appreciated.
Thanks.