hi everyone, I'm new in the business (just got my EPA type I and II licenses) and have a request from a customer for a manuscript storage area with a need for a humidistat control. temperature does not matter as it's year-round cool due to a high altitude but the area gets rain 5 days out of 7 and humidity control is difficult
as the documents are stored in an area with irregular electric service, we've already created a generator and solar (with inverters and battery banks) backup system which is instantly activated if there is a power loss.
I have a couple very promising mini-splits on hand which have the ability to run blower at very low speeds and the systems would be started in series (relays already installed) with a 5 min delay to minimize instant on power surge
the humidistat control I'm looking for would have to be a fairly simple piece of
24v controller, it can have the usual 5% accuracy but would have to have at least some of these capabilities
maximum 52% relative humidity with ability to turn off at a lower value or range no reheat system ability to set minimum and max for relative humidity
all the controls I've looked at so far have a range of 6 or 8% and don't have any adjustment capability when the new visionpro iaq became available I was hoping it would allow me a way to program only based on humidity range but it's also limited in this
the ideal control would monitor indoor humidity (not temperature) and turn on first system when 53% is detected but have the ability to shut down when humidity is dropped to 49-50%.