Humidistat install, horizontal or vertical?

Friday, January 6, 2012 by Aprilaire Team
Consumer question:

Can the 4655 Manual Humidistat be installed in either the horizontal or vertical position? That is, is there a prefered mounting position?

Aprilaires' response:

The orientation of the humidistat is not critical. The placement of the humidistat should allow for ease of access and viewing.

Comments for Humidistat install, horizontal or vertical?

Saturday, January 21, 2012 by Ralph Zuckerman:
I had an an Aprilaire 560 that could only raise the humidity to 30%. Your authorized dealer replaced with Aprilaire 600--it also can't raise the humdity above 30%. I essentially wasted my money and the square footage of my home is 1800. Moreover the digital humidistat reads 16% when the humidity is 30%--it is placed on the return. Please advise what to do to bring the humidity to 35-40% as indicated in your table. Thank you

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