Underfloor heating with new actuators

[Masrkkirby]

Hello,

I have an underfloor heating system which has just had a Roth controlled actuator valves fitted in order, I was hoping, to make one room warmer. My question is whether I need to adjust the lock shield valves or do I let the actuators take complete control of the water supply?

 

[Gray0689]

It should be set up with flow regulator to correct flow rate
Then stat controls heat

 

[Masrkkirby]

Yes, I can see that but since I have had the system I have one cold room and can't seem to get that one warm despite having flushed the system to remove airlocks. I was wondering whether i should retrofit flow meters so that I can see the flow in each circuit as the manifold does not have this facility at the moment and flow seems to be the problem?

 

[Ermintrude]

Use a thermometer. Get system steady and just balance it out so all return temps same. U will need to leave 1 hour between tweaks as floors are not very responsive or stable.

 

[Worcester]

If you fit flow meters, do you even know what flows you should be looking for?
What's the flow temperature, what's the design delta T, what's the actual heat loss for the rooms? What is the type of emitter used?

Did the installer include for commissioning on hos quote? If so, get him back...

And of course someone did do the heat loss calcs before they started didn't they..

 

[Ermintrude]

Gordon, always the defeatist. Of course they did they just didn't document it and they have done that many jobs since they just need to PPP back and take a few measurements to check.

 

[Masrkkirby]

Gordon, always the defeatist. Of course they did they just didn't document it and they have done that many jobs since they just need to PPP back and take a few measurements to check.

That's pretty much how it is! Thanks for your input.