Reaching out for some advice about revamping our existing HVAC equipment and adding some dedicated dehumidification/outdoor air supply.
Replacing two existing hvac systems supplying the first floor/basement and second floor of our house.
First floor and basement are both 2,900 sqft, with 1,600 sqft of the basement finished. Second floor is 1900 sqft.
Leaning towards using the Bosch IDS 2.0 gear and would like to add an Ultra-Aire unit to the first floor/basement system. The second floor system is in a closet that's pretty tight and doesn't have room for a dehumidifier.
Unfortunately, don't have a blower door test/manual J to share. Have yet to stumble upon a local contractor who makes it their practice to size equipment based on this data.
Located in Kansas City. House was built in 2006 and "seems" moderately tight, but with quite a bit of glass, including some commercial units that could be tighter.
The contractor who has quoted the new equipment recommends the Ultra-Aire 98h for our application. The Santa Fe website suggest this would be undersized. Any thoughts about who's right?
Would be easier to tie the Ultra-Aire return duct into the existing HVAC return, rather than reconfigure a dedicated return. As I understand it, the fan on this Bosch equipment runs continuously. Would it significantly compromise the performance of the dehumidifier by using the "alternative" vs "recommended" return configuration?
Any thoughts/advice are very much appreciated.
Replacing two existing hvac systems supplying the first floor/basement and second floor of our house.
First floor and basement are both 2,900 sqft, with 1,600 sqft of the basement finished. Second floor is 1900 sqft.
Leaning towards using the Bosch IDS 2.0 gear and would like to add an Ultra-Aire unit to the first floor/basement system. The second floor system is in a closet that's pretty tight and doesn't have room for a dehumidifier.
Unfortunately, don't have a blower door test/manual J to share. Have yet to stumble upon a local contractor who makes it their practice to size equipment based on this data.
Located in Kansas City. House was built in 2006 and "seems" moderately tight, but with quite a bit of glass, including some commercial units that could be tighter.
The contractor who has quoted the new equipment recommends the Ultra-Aire 98h for our application. The Santa Fe website suggest this would be undersized. Any thoughts about who's right?
Would be easier to tie the Ultra-Aire return duct into the existing HVAC return, rather than reconfigure a dedicated return. As I understand it, the fan on this Bosch equipment runs continuously. Would it significantly compromise the performance of the dehumidifier by using the "alternative" vs "recommended" return configuration?
Any thoughts/advice are very much appreciated.
source https://hvac-talk.com/vbb/threads/2227229-Ultra-Aire-sizing-and-return-configuration?goto=newpost
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