UFH Pump - Always on?

[MJB5373]

Hi all,

I've had a Polypipe UFH solution fitted and I've got a query about the water-pump. I've asked the plumber but he's passed me onto the spark - who fitted it this way. Kinda think between them I've not got a definitive answer...so here I am asking the plumbing gurus.....

In a nutshell - this pump, I'm assuming, is constantly on. The green light is on, and it omits a sound, from the pump and the pipes. Its not pumping hot water because the thermostat isn't calling the boiler but I feel its pumping cold around the system 24/7?

I've got the plumber and a spark coming round tomorrow, so looking to gear myself up with some knowledge

Can anyone offer me any advice please?

Cheers, Mark

 

[ShaunCorbs]

It’s always pumping which is wrong

Also there’s looks no independent control of the zones so there all on

 

[MJB5373]

thanks for that swift reply Shaun; does this photo help with regards to the independent controls.... what should I be expecting?

Cheers, Mark

 

[king of pipes]

Your underfloor heating zone should have its own time and temperature controls and switch the pump off when either the stat is satisfied or the zone is not in a timed on mode I would expect to see a 2 port zone valve and a timer of some sort. Regards kop

 

[MJB5373]

Got ya, it’s got a Nest Thermostats connected to the boiler and a value. That pump seems to be just plugged in to perm power... should it be switched in some way

 

[Brambles]

With due respect whoever installed that system does not understand the concept of how a wet underfloor system operates. I would suggest that you get a credible plumber in to correct the faults, set up and balance the system properly.

You really should not be employing tradesmen who you have to tell them the basics about what is wrong / missing with the installation they have left you with

 

[MJB5373]

I totally hear you! Unfortunately, as many pre and post me. I have fallen into the trap of being told they are credible professionals and can install my solution. Getting someone else in could sort or exacerbate my issue....

 

[Brambles]

I can sympathise with your position - but you probably need to recognise that this is probably their first time installation with wet underfloor system

 

[king of pipes]

View attachment 39206 Got ya, it’s got a Nest Thermostats connected to the boiler and a value. That pump seems to be just plugged in to perm power... should it be switched in some way

Yes the pump needs to be wired into the correct connector blocks in series with the underfloor controls it very much looks like a wiring issue . Kop

 

[MJB5373]

Many thanks again, much appreciated