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Wall boilers

Cleaning and renovation of the water heating circuit EUTERMA MICRA R21

Flavio
Flavio
132
hace 5 años
hace 5 años
Hi everyone! My boiler Euterma Micra 21 has some problems to reach a good temperature in the heating circuit and I have been recommended to clean the circuit. I have no idea how to do it. Is there a step by step how to do this task or a charitable soul could give me the instructions to do it? I already thank you
Calemdq
Calemdq
23.097
hace 5 años
hace 5 años
Hi seeing a little how the manifold is made, it seems that they have covered with material the rest of the manifold box, trust if you can enlarge it to have access to the drain valve, as a first step you have to clean the circuit, if you cannot do it you will have to disconnect the return of the boiler, plug the entrance of it and run water by opening the filling valve, it is not the best system but at least you will improve the situation out of the way regards !
Flavio
Flavio
132
hace 5 años

Thank you very much for your help MDQ, since I am not an expert in heating I wanted to confirm what you recommended in case of not finding the drain valve:
1) Heating water outlet key closure
2) Disconnect return going to the boiler, I put a hose and the grill.
3) I opened a key that had closed the water outlet of the water heater
4) I open boiler filling wrench
Does the boiler have to be on or off?
Thank you very much again for your help

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Calemdq
Calemdq
23.097
hace 5 años

yes, and you must put a cap so that the water does not go through the flexible one that you disconnected, with the boiler turned off do it,

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Flavio
Flavio
132
hace 5 años

Thanks friend MDQ, I don't know if I can do it. I'll try. There I read that I have to put a pump at 3 bar to do this operation. It already frightened me

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Calemdq
Calemdq
23.097
hace 5 años

It is not necessary to just run water, plenty of water

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Flavio
Flavio
132
hace 5 años

I did as you recommended and I was perfect! Now the temperature rises a little more than the 50 degrees that comes before. Thank you very much MDQ for your help !!

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Calemdq
Calemdq
23.097
hace 5 años

I am very pleased !! Now when winter is over do not let yourself be and do a thorough cleaning, greetings!

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Flavio
Flavio
132
hace 5 años
hace 5 años
I add a photo that maybe serves to help someone understand me. From what I saw, there is no drain key and the system is radiant. In the photo you can see the keys of each of the 4 circuits and I suppose that the 2 keys on the left in the photo must be the water inlet and return. Please, I hope somebody will answer me. I leave the photo:
Flavio
Flavio
132
hace 5 años

Friends, @CQfactor MDQ, @Walter del Farra, or some other, throw me a center that I'm dying of frioooooo

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