Prefered Location for a flow through Humidifier
Hello and thank you for any help you may be able to provide.
I have been given a quote for an installation of a Flow Through Humidifier.
I did read the installation guide and it says that the unit can be installed on either the cold air or warm plenum. I have a hot water tank that is blocking the access to the cold air return plenum and the installer wants to install the humidifier unit on the hot air plenum.
I also want to install central air conditioning in the spring. So my main concerns about installing the unit on the warm air side is,
#1- is it better to have the warm air side pushing hot air into the 7 inch bypass pipe that then blows warmed air through the humidifier evaporator pads and into the cold air side.( I would think that warmer air will be better than cool air to help evaporate the water on the pad).
If the unit is installed on the warm air plenum then that means, it will have cool air coming from the cold air return and pushing through the 7 inch bypass tube and blowing across the evaporator pads. As well, the furnace that this is being installed on is a 2 stage furnace so when the higher heating demands are not necessary, the furnace will push even cooler air thus making it even more difficult to evaporate the water on the pad.
#2- is if the unit is installed on the warm air plenum below the Air Conditioners A Coil then that means, the humid air leaving the pads will be passing close to and through the A-Coil. Will this excessive humidity effect the life expectancy of the A-Coil, and will the A-Coil trap moister on the coil that may then drain away.
If I had my choice, I would like to see the humidifier installed on the cold air plenum. Do you think I am justified in asking to have it installed on the cold side.
My main question here is, would it truly better to have the humidifier installed on the cold air plenum with the 7 inch bypass pipe coming off the hot air plenum and pushing air across the humidifier pads, or am I just over concerned.
This is my retirement home so I would really like to do things right to avoid any future problems etc...
Thanks for your help on this inquiry.
Dave Sheard. Ottawa Canada.
Posted Sat, 01/25/2014 - 08:21
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