My contractor couldn't answer me : - (
I have a Armstrong air advantage model G2D93CT100D20C-2A (93% efficiency) with a whole house humidifier and its installed with a VisionPRO IAQ YTH9421C1002 version 2 (as you can see, I did read on the Internet a little bit before posting!!).
The Armstrong G2D93... is it a 2 stage heater with a multi-speed PCS blower motor. It's a NG gas furnace.
Now here's what I noticed:
Ventilation is on because humidity is too low or because IAQ wants to move the air around the house!!! At one point, the temperature in the house is too low and here's the problem. The blower stops, the burner goes on and the blower starts again. Is it *really* supposed to be like that? I don't like it, I'd rather have the blower to stay on instead of wasting electricity and premature break down of the blower. Am I dreaming or is this possible?
I also notice that the blower seems to always run at the same speed... like if there's no variable speed???
Any comments are welcome.