Sounds like a dilemma!
I would advise contacting the Dampp-Chaser people and discussing it with
them. http://www.dampp-chaser.com/
I've used such a system on a grand for 5 years. I have the impression
that the product is well-engineered and that you can rely on their
advice. I would also be sure that the humidifier system is installed
EXACTLY as they instruct.
Then, I would find out if the advice you received is truly Yamaha's or
simply someone's pedestrian opinion. Do they base this advice on actual
experience or are they crystal-balling?
In my opinion, 42% RH will not damage electronic components. Unless
there is some peculiar situation wherein the components are cold and are
collecting condensed water, I can't imagine a problem. (I am a retired
electronics engineer.)
With that done, you may have some rational basis for deciding what to do.
nicepresents wrote:
> My pianoshop just called me before delivery of my new DU1A upright
> disklavier, to tell Yamaha sees a problem in installing the Damp
> Chaser unit because of the electronics.
>
> Is there a way in which I can mount this safely? The painoshop tells
> me when I mount it on the backside (as I read somewhere is possible
> solution, but where is allready located something like a power-
> converter) this will influence the soundboard more than you would
> whish. Does someone have a solution?
>
> Hope to get some good suggestions. Thanks
> Greetings,
> Paul de Jong
>
>
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--
Robert Welcyng
Anchorage, Alaska