Ufch off thermal store, flow temperatures too high??!

[TipTop]

Hi guys, any advice for my situation
Ov thermal store with ufch tappings but ufch manifold v close to store,
Problem is store temp at 72/73'c
Manifold has phial type trv and is shutting down v quickly due to flow temperatures

Clearly don't want 72 going through ufch (45ish ideally)
Got a 2port and 15/60 pulling from store
Secondary circ pump on manifold

Any ideas?
Cheers

 

[snowhead]

The TRV is doing it's job.

It should only open and inject hot water from the store when the circulating temperature around the floor drops below set point (45 for yours)

What's the temperature on the pipework to the floor?

 

[Nostrum]

Use a blending valve instead, I hate those phial type manifolds.

 

[Unregistered]

Hi nostrum what can I blend with??! It's obviously ch water I've no source of cooler water to blend it down with apart from return

 

[dancinplumba]

perhaps you should call in a professional

 

[snowhead]

with apart from return

Your answer.