Sealed system kits

[Matt0029]

I want to install one of these when converting a vented to sealed system. The only issue being the boiler manufactorys ask for the prv to be fitted on the flow as close to the boiler as possible. However if installing this kit I would need to fit on the return, due to the expansion vessels required position. Due to this would I be better fitting the contols separately in to the system. Prv on flow. Expansion on the return. Thanks.

 

[ShaunCorbs]

No issue fitting it on the return aslong as there’s no iso valves between it and the boiler

 

[Matt0029]

Thanks with these kits is the cold fill to the system return also the tee in for the expansion?

 

[ShaunCorbs]

Correct normally a 4 port tee

 

[Matt0029]

Correct normally a 4 port tee

One end to the expansion valve. Another to the cold feed inlet to the system. One the central heating return. The other the connection to the pressure relief valve?

 

[ShaunCorbs]

Correct

system return
Filling loop
Expansion vessel
Blow off