Diagonal Heating Zones!!

[justasking]

Hope someone can help.

I have dual zone heating in my new build. I have a TPOne-M downstairs and a TPOne-B in the master bedroom upstairs. When I turn on the heating using the downstairs TPOne-M it heats up half of the ground floor, kitchen/diner, hallway and then 2 of the bedrooms upstairs (diagonally upstairs, not the bedrooms directly above the kitchen/diner). If I then turn on the heating in the master bedroom using the TPOne-B in that room, it heats up that room and all the rooms on that side of the house, but not two of the rooms on the opposite side. It also then heats up the living room downstairs which is diagonally positioned to the master bedroom. How do I change this so that it's a simple choice between upstairs (one zone) and down stairs (second zone)

so the downstairs is two large rectangles, one is a kitchen/diner the other a living room (both the same size), split by a hallway (narrower rectangle) and stairs leading up.

the upstairs is 2 bedrooms above the living room and another 2 above the kitchen/diner with a family bathroom over the downstairs hallway.

 

[Deleted member 120897]

It’s the layout of the pipework, so that would need changing.

 

[king of pipes]

As Undertrained has said it's the pipework that's the issue get onto the developer it's their responsibility to correct this . Kop

 

[Basher]

If there's an upstairs manifold and a downstairs manifold, could it be a mistake in the wiring of the valves, rather than wrongly connected pipework?

 

[Deleted member 120897]

If there's an upstairs manifold and a downstairs manifold, could it be a mistake in the wiring of the valves, rather than wrongly connected pipework?

If it were the wiring then it would be a case of upstairs controlling downstairs and vice versa.

 

[Basher]

If it were the wiring then it would be a case of upstairs controlling downstairs and vice versa.

OK. I was thinking of manifolds with individual valves for each loop, ie with potential to control the bedrooms separately from the living rooms etc. But now realise it doesn't have those. Cheers!

 

[justasking]

It’s the layout of the pipework, so that would need changing.

when you say pipework, are we talking about the pipework in the cupboard with the water tank etc where all the valves are located or in all the rooms?

 

[Deleted member 120897]

when you say pipework, are we talking about the pipework in the cupboard with the water tank etc where all the valves are located or in all the rooms?

Sort of, but it’s likely to be under the floor where it’s either a manifold or a series of tee joints.

 

[ShaunCorbs]

Tbh your fecked best to put it all on one zone and live with it won’t comply with building regs but will work or go with a evo home system and have electronic trvs builders won’t pay for that as not cheap

 

[justasking]

Tbh your fecked best to put it all on one zone and live with it won’t comply with building regs but will work or go with a evo home system and have electronic trvs builders won’t pay for that as not cheap

why fecked? if they just need to work where the tank etc is, no?

 

[ShaunCorbs]

why fecked? if they just need to work where the tank etc is, no?

Nope rip all the floors or ceilings out it’s plumbed / piped wrong to the rads

 

[justasking]

Nope rip all the floors or ceilings out it’s plumbed / piped wrong to the rads

Looking at the plans the radiators boiler and tank etc are all in the correct place, if the house builder builds several of the same type (model) of house (which they have) then surely it's a mistake where everything joins together in the cupboard upstairs.

The boiler is in the utility room Baxi heat assure, directly above it on the first floor is the tank cupboard containing a therma evocycl cylinder plus a small red tank and a small white tank, all the pipes running to the radiators must be in the same place, no?

 

[ShaunCorbs]

Nope as the zone pipe work is in / under the floor so all the houses are the same / have your problem

 

[ShaunCorbs]

For example

See that radiator pipe work is separate to each zone so if there’s a rad on the wrong zone / mismatched all the pipework would need altering under the floor

 

[justasking]

looking at it again it seems the living room and the bedrooms directly above the living room have been confused by the installer hopefully there won't be too much destruction

 

[ShaunCorbs]

Ceiling will likely have to come down

 

[king of pipes]

What ever needs doing then its the developers responsibility they should instruct their heating contractors to correct the mistake ? , They are often slow to react to the problems be persistent but polite you have done well to diagnose the issue , are the manifolds visible or accessable? can you see the motorised valves with possibly a silver box on top ? a few pictures may help if the contractor has access to the manifolds? it could be quite simple to swap 4 pipes over once identified, or it may mean removing a floor covering and taking up a section of floor for access, worst case it's a section of ceiling may need to be removed. Regards kop

 

[justasking]

What ever needs doing then its the developers responsibility they should instruct their heating contractors to correct the mistake ? , They are often slow to react to the problems be persistent but polite you have done well to diagnose the issue , are the manifolds visible or accessable? can you see the motorised valves with possibly a silver box on top ? a few pictures may help if the contractor has access to the manifolds? it could be quite simple to swap 4 pipes over once identified, or it may mean removing a floor covering and taking up a section of floor for access, worst case it's a section of ceiling may need to be removed. Regards kop

 

[Deleted member 120897]

Unfortunately, looking at those photos the floor/ceiling would need to be removed for access.

 

[justasking]

Unfortunately, looking at those photos the floor/ceiling would need to be removed for access.

😱...new builds....

 

[justasking]

out of interest can you see any other mistakes they need to correct.

 

[justasking]

...and haven't mentioned it so far, but thanks for all the info from everyone.

 

[Deleted member 120897]

out of interest can you see any other mistakes they need to correct.

Nothing jumps out, but I don’t have my unvented qualification, so maybe someone else can spot something.

 

[ShaunCorbs]

Looks ok but a question would be what type of plastic pipe have they used for the d2 / unvented safety discharge

Needs to be mupvc or pushfit

Can’t be normal waste pipe eg abs / pvc

 

[justasking]

Looks ok but a question would be what type of plastic pipe have they used for the d2 / unvented safety discharge

Needs to be mupvc or pushfit

Can’t be normal waste pipe eg abs / pvc

Thanks could you rephrase that with red tank , white tank, left or right...about the level of my experience 😊 so I can point it out to them, thank you...