Sealed system

Philm_12 · 13-01-2015 11:49am #1

A few years ago whilst extending our house the heating system was changed to a sealed system.

I've never been too sure what the pictured valve does. What does the adjuster do?

There is a gate valve above on the 1/2" feed which is permanently open. Is that the correct position?

Dtp1979 · 13-01-2015 11:58am

Philm_12 wrote: »

A few years ago whilst extending our house the heating system was changed to a sealed system.

I've never been too sure what the pictured valve does. What does the adjuster do?

There is a gate valve above on the 1/2" feed which is permanently open. Is that the correct position?

No it shouldn't be permenantly on. Close it. If the gauge drops below one down to zero then you have a leak

RJF · 13-01-2015 12:13pm

I agree with Dtp1979. The adjuster is just a valve on the pressure reducer. Closing it will just shut off the flow- should also be closed but unnecessary if gate valve before it closed. Hate this set up but see it too often-not good for boilers or system. Normally replace with proper filling loop or place one after it.

Philm_12 · 13-01-2015 4:10pm

RJF wrote: »

I agree with Dtp1979. The adjuster is just a valve on the pressure reducer. Closing it will just shut off the flow- should also be closed but unnecessary if gate valve before it closed. Hate this set up but see it too often-not good for boilers or system. Normally replace with proper filling loop or place one after it.

A filling loop is flexible and removable?

RJF · 13-01-2015 4:12pm

Yes

Sealed system

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