British Gas fitted 2 wireless receivers. Why??

bhm1712

bhm1712

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My friends have just had a new boiler fitted by BG....I've not seen the installation myself yet but they tell me that they have installed 2 "British Gas WR1" receivers in the house. One is cited directly underneath the new boiler and one is under the stairs. The wireless room stat "British Gas RC1" operates both receivers as they can see the red light flashing on both units when they operate the stat and then the green relay light comes on on both receivers when the call for heat is detected. Apparently only one unit can be heard "clicking" and this is the unit located under the stairs. The unit beneath the boiler doesn't make any relay clicking noises. BG said this was done to extend the range of the wireless stat. Is this normal practice? As I say I've yet to see the work but I've never heard of this before and wondered if you experienced heating controls guys had any ideas?
 
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No idea what they have done, one receiver wont boost signal to a second one. Potentially one receiver is doing the heating and the second is doing a wireless cylinder stat perhaps?
Without knowing whats connected to what and where its hard to say.
 
It does work yes. However the OP my friend is not happy about the extra £103.76 for the extra WR1 receiver if in reality it's not required.
 
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How big is the house? Is it, say, steel framed?
My first thought that the one under the stairs is repeating to the active one by the boiler, to increase range, but Pablo seems to dismiss this, an, TBH, he is more likely than me to know
 
It's a 1970's property with brick internal walls there are no stud walls or steel frames in sight. The distance between the one under the boiler and the one under the stairs is probably less than 4 meters by line of sight and The only obstruction is by a single wall between the utility room where the boiler is and the hall where the stairs are.

The cylinder stat is hard wired so the second receiver isn't for that. Ive had a quick look today and as my friend said, when you operate the thermostat, both receivers operate together (the receive light flashes and then the green switch light operates on both units) and just like he said - the one under the stairs makes an audible "click" as the relay switches but the one beneath the boiler remains silent even though the green switch light comes on or off. I've not removed the receivers to see how the wiring has been done because it's under BG warranty so don't want to mess with it.

If it was being used as a repeater then I would imagine that the relay contacts would have been wired in parallel with each other so that either receiver can switch and send a signal to the boiler but I just can't see why you would need it in a normal sized home especially with the distances involved between the two units.
 
Well. I think BG need to send someone out to explain it because, if it's not a repeater and there's not another MCV hidden under the stairs (for some reason)... I have no idea why it's there! Didn't get any photos did you?
 
dreadnoughtheating said:
upstairs and downstairs heating zones? just askin'
Click to expand...

Possible but then you would expect two stats.

Can't see it as an repeater either as its the stat that sends a signal not the receiver. They dont have a facility to send a signal. Only way for that to work would be that the first receiver is sending the SL signal to another stat that talks to the second receiver.

Photos may help but the best option for the OP is to contact them and ask them why.

Only obvious reason I could think of is the same as dreadnoughts but they have combined zones.

Do they have underfloor heating anywhere?

Jon
 
Is it some thing to do with a pump over run ? if there were not enough wires back at the boiler ?
 
There is no underfloor heating in the house.

As for pump over run- the pump is wired directly into the boilers terminal rail so I don't think it's anything to do with that. I've told him to get BG to explain what it's for in more detail and will feedback here when I know what they say!
 
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