So, I've just started doing some work for a local plumbing firm. Got a call this morning "can you come and install a wireless thermostat". Yeah no problem I think. Get to the site and apparently this system is fully installed and working.
This was what I found in the wiring center.
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On the basis of that fine piece of work, I decided to dig a little deeper.
The full list of faults went like this:-
- No earth from the FCU supplying the heating
- Existing wireless thermostat was not connected - Cables were twisted together behind it's mounting socket... bare, no tape
- No demand connections to the boiler only the power supply - The demand control link was still in place so this thing has been running since it was turned on maintaining the temperature of the bypass loop
I don't do a lot of heating wiring, but I can follow a wiring diagram.
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Not bad for my third attempt at central heating wiring if I do say so myself. Still room for improvement, but it all works as it should through a wireless programmer and a pair of wireless thermostats (one remote for the cylinder and one for a room). And I got a decent Zs at the boiler, so it's a winner