Nickfromwales

Yup. That’ll cover everything ?. Good luck.?

If you’re going to open the single pipe at the pump and connect the PFM there, and both / all ZV’s are open ( with gate to HWC closed at first ) then it should be fine without the gate. The gate was just to allow you to take the PFM potential down from 100%.

???. If you did that, I’d have bought the drinks.

It’s what we do.....

The celebration will be short lived. You have a LOT of thirsty people to get sorted. Best call work and tell them you’ll be late.......??

Relax, take a walk around the landing ( 3-5 hours ) and check again....

@Gus Potter shows up and bingo. Bloody wizard, I shit you not. ?‍♂️

Can I got to sleep now?

6000 people need their beer. You’re not going ANYWHERE. ?????????????

Turn the boiler back down, and watch the problem “magically” disappear. My 1 hour call it fee is one pint for each member. You may want to speak to the bank first thing

Drinks are on you.

Ahhhhh. IF, sir, you have turned out to be the worst system owner of 2020, and go around twiddling knobs, then you have just fallen on your own sword. STOP twiddling as you’ve made it unsafe.

?

The black thing that goes south into the chrome set ( directly above the pump ) with the black wire is what interfering to. That’s a 230v thermostatic ‘interrupter’ put in to protect the occupants against failure of the TMV.

It’s a safety feature to stop the floor getting too hot. Bet the pump is A OK.

Have a second look That setup looks to me to have a high temp probe in the head of that blending set. If the flow temp is too high the pump shuts off. Same with the Vogel & Noot setups.

@AliG ?

I’m on site in Salisbury and live in Swansea!! I DREAM of being an hour away

No stupid. It’s 45 mins for that.

Hooooooold up. What does that temp gauge read by the U/S pump

And pay for the callout

?. Yes, I know that. Get the installer back.

It might be the fuse in the manifold wiring centre. Hold fire before telling someone the fault, as the correct order of events is to get the installer back to tell YOU what’s wrong Idle thumbs etc.....

Get yourself some wet-wipes and enjoy ?

Hepworth for HRC needs to be temperature capped so a TMV is required in every instance. I’ve been using the same TMV that goes on the SA units as they’re decent reliable units. I set those to 50oC nominal and happy days. The question of how much of an arse your BCO is, whether or not they make you drop the bath to 46oC as “god intended” ( some BCO’s think they’re ‘up there’ for sure, and some are just massive bell-ends ). ??. Best to check before assuming that 50oC everywhere is acceptable.