3 port valve upside down

[simond]

Just fit it the right way up. It is easy to orientate it properly and you would expect any professional to take the trouble.

If you want your plumbing to shout 'DIY bodge' when you sell the house carry on.

When I do quotes you can usually spot DIY plumbing and electrical work within two steps of passing the threshold.

That being said, every now and then someone does a really professional job, and I always compliment them. Offered one of our customers a job once!

 

[spacethegas]

i just got the impression you were running the boiler flow up into the loft & down again, hence your original question.

 

[heatingman]

Keep the auto-bypass, it might be required to maintain correct flow rate through whatever boiler you have. If its not required it wont open, if its not there and is required you have another issue to resolve.

 

[spacethegas]

You do not need the bypass valve. In fact it will never do its work as one port in the motorised valve is always open.

Cannot see anything else wrong in the drawing

the bypass valve is a system requirement to comply with regs (providing the boiler has no internal bypass, although still a good idea).

it would be better to run a separate 22mm c/f & o/v close coupled just before pump.

 

[DP]

Fail to see the need for a bypass with a three port valve (unless all rads were TRVed). Can someone tell me under what circumstances the bypass will do its job if the installation was TRVed in the bedrooms, living room had a TRV too but the hall and bathroom were not fitted with TRVs. Roomstat fitted in hall.

 

[muggles]

Cannot see anything else wrong in the drawing

I can - Feed and Vent pipes should be seperate and not combined

 

[spacethegas]

it is a requirement as is a minimum of trvs in all bedrooms on any system upgrade.

 

[muggles]

Just in the bedrooms? I think you'll find the latest thinking is that TRV's should appear on every rad except the one controlled by the roomstat

 

[spacethegas]

when i did my energy conservation cert min bedrooms, best practice all rads cept room with r/s.

perhaps things have changed.