Electric boiler supllying underfloor heating manifold

[Jakeb]

Good Day Team,

 

Im a plumber gas fitter from New Zealand and have been ask to install pipe work from a boiler to underfloor heating manifold, i just want to assure ive got this correct before i proceed.

 

The manifold has been installed by others and ive supplied the boiler.

 

They have left behind the wiring centre, 2 thermostats, 1 zone valve and the actuators.

 

System only 13 KW electric boiler supplying a 2 zone underfloor heating manifold, if someone could confirm the valving is correct that would be appreciated.

 

Do i need a automatic by pass valve or is a standard gate valve in the open postistion okay?

 

Ive attached a rough sketch some advice would be appreciated.

 

Usaully the supplier would give me all this info but i cannot get that from the supplier here (not very helpful).

 

Cheers 

 

 

 

 

UFH draft.pdf

[Jakeb]

@Nickfromwales any advice mate?

[Nickfromwales]

On 09/12/2023 at 10:17, Jakeb said:

@Nickfromwales any advice mate?

Looks like it will function fine if installed as per the diagram tbh, just down to how well the boiler can modulate / cope with low heat loads (when the rooms get up to temp).

 

5 wire zone valve I assume, so the boiler can't fire until the ZV is fully open?

[Jakeb]

ill need to check the zone valve, ill let you know. but yea when heat is required zone valve will open allwoing boiler to fire up.