Homeowner Forum / Construction / May 2005

I live in New England where as times it gets very humid but the
temperature is not very high. When I added central air I also added
an Aprilaire 1700 whole house dehumidifier. The contractor said that
the units would run independently of each other so I could run the AC
or the de humidifier or both.

The contractor installed an Aprilaire Mod 70 Humidistat, and installed
the 1700 across the air handler in the attic.

My questions: It seem that the Humidistat when calling for the
dehumidifier to run does not run the air handler fan. Since the 1700
was installed in parallel with the air handler it seems to me that
the 1700 is just circulating air through the air handler and not the
house.

Should the air handler be running when the dehumidifier is running to
move the dryer air through the house and if so how can this be done?