Evening all, tomorrow i have got to do that thermostat job we talked about a few days ago. In the past i have only ever fitted drayton and the one i am fitting tomorrow is a siemens so i am a little unsure about the connections.
The stat i am talking about is this little cheeky chappy
http://www.screwfix.com/prods/89164/Plumbing/Central-Heating-Controls/Siemens-RDH10RF-SET-GB-Room-Thermostat
The new stat has two sets of terminlas, one set is a live and neutral, and the other set is LX L1 L2. The LX L1 L2 terminals are in a switch configuration with LX being the common.
From the instructions the legend for the terminals is as follows;
LX = Common
L1 = Live feed to item being controlled
L2 = Changeover contact
L = live
N = Neutral
The cables connected to the current stat are a twin and earth 1.5mm and a single core 1.5mm. The twin and earth are the phase and neutral and the single (green insulation) is the call for heat (i assume).
So for the new stat does the 1.5mm twin and earth go to the L and N terminals, and the 1.5mm single go to the L1 terminal, and put a link between the LX terminal and the L terminal. (and connect the CPC to a loose terminal block).
Hope all that makes sense to youPray
The stat i am talking about is this little cheeky chappy
http://www.screwfix.com/prods/89164/Plumbing/Central-Heating-Controls/Siemens-RDH10RF-SET-GB-Room-Thermostat
The new stat has two sets of terminlas, one set is a live and neutral, and the other set is LX L1 L2. The LX L1 L2 terminals are in a switch configuration with LX being the common.
From the instructions the legend for the terminals is as follows;
LX = Common
L1 = Live feed to item being controlled
L2 = Changeover contact
L = live
N = Neutral
The cables connected to the current stat are a twin and earth 1.5mm and a single core 1.5mm. The twin and earth are the phase and neutral and the single (green insulation) is the call for heat (i assume).
So for the new stat does the 1.5mm twin and earth go to the L and N terminals, and the 1.5mm single go to the L1 terminal, and put a link between the LX terminal and the L terminal. (and connect the CPC to a loose terminal block).
Hope all that makes sense to youPray