Refilling Vaillant ecoTEC+ 937.

[David937]

Hi,

I have bled a radiator and was expecting the pressure to drop and it did, how do you repressurize this model, AIUI this model has a built in filling loop, under the boiler I can see two plastic tap looking things, do I just have to open these to refill?

I was wondering if the inhibitor becomes more and more dilute as you bleed radiators and refill, does the inhibitor become less effective?

The pressure is around 0.6 bar cold.

 

[Deleted member 105431]

open the two grey plastic taps with "closed" written on them. fill to approx 1.5. make sure you turn them back off!

 

[David937]

Is it that simple?

 

[Deleted member 105431]

Is it that simple?

yes it is. press the - button (minus button) to show pressure on digital display

 

[simond]

The answer to your other question is yes.

 

[David937]

I was reading the installation manual, and in there it said something about moving something forward, clipping it it, opening the taps then pushing the ring or something back, and turning taps off.

 

[gas4you]

Thats the actual fitting of the filling loop during installation you are reading about.

 

[David937]

Thank you very much, so it's a very good design then.
How long can I expect the inhibitor to last then?
http://www.purimachos.info/protex/