I need some help rewiring a couple of components which form part of my domestic heating system. They are the programmer (which has been relocated but not renewed) and the roomstat/rheostat/thermostat (which has also been relocated AND replaced with a more modern device).
By way of explanation... recent home improvements to my 1930's 3-bed semi have included blocking off half of the 'original' galley style kitchen, which was straight ahead of you when entering the front door. The new kitchen is now located behind this in the left half of a rear extension and also occupies what used to be the back of the garage. The rear left-hand corner of the house was removed and supported by steels, to 'open-up' the new kitchen. The door that used to lead into the old kitchen remains, but is now the entrance to a downstairs shower/basin/wc.
Previously, the CH & HW programmer and the Roomstat used to be mounted on the same wall as the doorway by which one entered, on the left hand side. (On the other side of this wall is/was the understair cupboard and is where these two components were electrically connected.
Also involved in the renovations, was converting the first 2/3rds of the garage into a kids' den and a doorway is to be knocked through from the hallway (left of the front door) into the garage.
As a result, I decided it would be practical to relocate the Roomstat/rheostat/thermostat to the hallway (on the right just before the doorway into the downstairs shower room) and the Programmer to the den (on your left after passing through the doorway from the hall) as this is where my boiler is located (in the 'old' garage).
The cables have all been run to their new, appropriate, locations: The
2.5mm T&E and the 1.0mm flex (3-core & Earth) that went to the Programmer and Roomstat are now in the garage by the boiler; and I have run a new 2.5mm 3-core & Earth (new colour coding) from that same position to the new roomstat location.My system consists of the following...
- GARAGE: Potterton boiler and Froststat (+ existing, but relocated LANDIS & GYR programmer: RWB200)
- HALLWAY: Relocated and NEW Roomstat: TowerStat RS
- 2ND BEDROOM AIRING CUPBOARD: HW Cylinder, immersion heater, pump and 2 x 2-port motorised valves.
I made a note of the wiring before disconnecting the Roomstat and Programmer and intended to rewire accordingly. However, having purchased the new Roomstat and by speaking with my local electrical retailer, it appears that the new stat needs to be wired differently to the old and from my scribbles, his opinion is that the original wiring was a bit of mess anyway and would be worth starting from scratch!
Trouble is, I don't have the original wiring diagram for the existing programmer or the boiler and am not that familiar with how these circuits are wired up... if I new what did what and where it went, I'm confident I could not only wire it correctly, but could tidy everything up at the same time!
Can anyone help shed any light? Perhaps supply me with a standard wiring diagram that I could follow, or suggest ways to proceed. If it proves too complex, I will call in a sparks, but I'm interested to find out for myself... I know I could probably achieve this by tracing each wire to its destination but that would take me more time than I have right now.
I can supply more details if necessary, but this really is a 'standard' system and I'm sure that those of you with the knowledge and experience can visualise exactly what I have here. Its not the original system and was put in before I bought the house (between 9 and 13 years ago, I reckon).
Any help would be great.
cheers, Dean.