Viessmann vitodens 200 low modulation low run time high return temp

JonathanM · 21 Apr 2023

monkeysballs said:
Oops forgot to put what it was!
The flue was set to balanced flue rather than single

Thanks for updating. Glad it's working properly now. It was behaving very strangely!

The two options for this model seem to be "Single connection" and "Multiple Connections". Single seems to be default, so it looks like your engineer chose to use multiple originally, which seems a bit odd.

■ Single connection Only one heat generator is connected to the flue system (factory setting). ■ Multiple connections Several heat generators are connected to the flue system.

monkeysballs · 21 Apr 2023

That was what I meant

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Viessmann vitodens 200 low modulation low run time high return temp

JonathanM

monkeysballs

DIYnot Local

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