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04-01-2012, 02:22 PM #1New Guest
- Join Date
- Apr 2012
Need plan for upgrades and optimizing my system
I am new to the site and have learned a lot searching the archives. We just moved into a newer house and I have a feeling the equipment is not set up to operate as efficiently as possible...so I have a few questions.
Here are the details of the home and equipment:
1700 sq ft ranch with full basement located in Southern Indiana. House is constructed of insulated concrete forms (basement and upper) with Low E windows and an attic full of blown cellulose. There are two bath fans and no dedicated kitchen fan. The basement has excellent drainage and stays very dry.
HVAC consists of Lennox XP19 heat pump, CBX32 air handler, and an HRV200. The Aux/emer heat is electric and the HRV is installed into the return air ductwork.
This past winter RH averaged 35% with the HRV running continuously at low speed but with the rainy and hot spring we have experienced so far, the RH has been ~50% but can spike up to ~60% when we have guests over or do a lot of cooking, etc.
This being said, I think that a whole house dehumidifier would be a good idea to help stabilize RH during the warmer months? Thoughts? Any brand recommendations?
I am thinking that it would be best to install a unit with dedicated duct work to pull moist air from the main level and discharge the dry air into the basement but I am not sure if this is a good idea.
If all the above sounds reasonable, what is the best way to control the HRV/dehumidifier/AC operation? Fully integrated controls or individual standalone?
Currently the HRV control is a simple rotary switch "dehumidistat" and I am 99% sure the HRV control has no idea what the main blower is doing. There has to be a way to make the HRV "smart" and make sure it is not over or under ventilating.
So far I have not had luck getting answers from any of the local folks so I appreciate any advice you can provide.