Fan runs all the time for the air cleaner. So far the system has operated great. We will see how it works durring the summer. Hopfully the heat exchanger will not sweat. Still tring to get mfg. to approve but they have not told me no yet eather.
I dont think the board or motor will be a problem due to the same motor and boards are used in airhandlers with Heat Pumps and the indoor coil is up stream of there motors.
I will check with the mfg for downstream listing. re: section 6.3.7 although (just my opinion) since the furnace is sealed...
The furnace has variable speed drive blower. It operates great and I am not having any problems with the system.
I just installed the system and have just recently moved into this home (northern Indiana Just a few miles from Chicago) a few months ago so no previous utilty bills to compair to...
1st you need to find out why you have mold.
A/C incorrectly sized or set up wrong is common.
I am not a expert but they are sized based on CFM of air flow.
They also can be installed return only, supply only or both.
Near the evap coil is good due to the moisture can feed the mold. UV lite can...
But with a sealed combustion furnace in a normal basement instalation the indoor coil should operate ok in the return durring cooling.
I dont see the difference between pulling the air or pushing through the indoor coil same cfm.
A electric air handler as well as most rootop units the indoor...
The Heat Pump (16 SEER 2 stage) is more efficient to operate down to around 5 deg than the gas furnace. Although it will not produce enough heat for the home below the thermal balance point.
That is when is the furnace (93% 2 stage) starts to stage in to supplement the heat pump. Instead of...
Evap in the return air side of the furnace not combustion air unless I am mis-understanding you. I have a 2 stage Heat Pump that basicly is the primary heat for my home untill the thermal balance point that is when the gas furnace will start to stage in to boost the air temp with the heat pump...
Is there any reason the evaporator cannot be put on the return side of a 90% gas furnace to allow a Heat Pump to operate down to economic balance point. Then staging 1st or 2nd stage of the gas furnace simmilar to a air handler with resistance. There are no more pilots so the heat exchanger...
