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Discuss Solar Thermal installed - does this look right? in the Renewables area at PlumbersForums.net

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Hi guy

I had solar thermal installed and wanted an expert opinion, had it installed today and its not working and the installer is to return. I get the impression when it comes to the electrical side the installer hasn’t the foggiest, he replaced the water valve and now my boiler does not heat up , the valve doesn’t turn on, he cut the cable off the old valve and joined the cables and put tape over it. Secondary the solar thermostat/control doesn’t work, so apparently both are faulty, well from what I have seen I don’t think its the equipment. The other cables he has joined as per the pic but no junction box, surely this is not safe. one of pics shows the solar thermostat going’s into the cylinder, should there be a cover? And after all that the installer asked me to double check the joined cable because he is colour blind! Any opinions appreciated. Pics attached. Thanks
 

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You are right to be concerned. Don't pay the bill until the electrical work has been brought up to standard and tested by a qualified electrician.
 
Thanks Chuck, and im paying £7500 for this? lol
Not until it's up to standard you're not. You might want to post some pics of the rest of the installation.

That amount should get you quite a nice piece of work IMO. Unless you're in London where it'll just about cover the call out fee and a new tap-washer... :)
 
Sadly unenclosed wago‘s are all too common these days.

it’s certainly not good practice or acceptable, nor is using tape over joints either

write to the contractor outlining your concerns
 
Where’s the solar unit eg reg set and overheat ?
 
Another picture of the quality workmanship lol
 

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Did they install the cylinder?
 
Cylinder install is wrong the transition to d2 should have a tundish maximum 600mm away from the valve
 
What is this for anybody? Seems to dangling down on floor.
 

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For draining and flushing the solar system
 
No there’s no tundish it’s a maximum 600mm away from the red headed valve
 
But you said this earlier...Cylinder install is wrong the transition to d2 should have a tundish maximum 600mm away from the valve’

explain in English for me lol
 
Yours is missing the tundish totally
 

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Which is too far needs to be a maximum of 600 away from the red top valve
 
Which is too far needs to be a maximum of 600 away from the red top valve
There is another red top valve here behind cylinder, is this one or the one in front? well both are further than 600mm
 

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Yep ideally you should have two separate tundishs as you can tell which one is dripping but it’s not regs
 
Ah right, there was a tundish in the packaging but it appears he decided not to install it and keep the old one as it is.
 
I would get him to move the existing to comply and install the new one on the other
 
I can’t wait to call the company tomorrow! I had a electric car charger installed 6 months ago and again I was unlucky to have someone who didn’t have much experience installing chargers and had 4 visits in 2 weeks, replaced it 3 times , messed about, took alot of my time , until they sent a more experienced who fitted it properly straight away, I really can’t be bothered with going through something similar, the guy is nice and pleasant but I want this installed properly and without any issues
 

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