Furnace operation with/without AC power
Trailer is a new 2920BH with Atwood furnace, Dometic AC unit, Dometic digital thermostat.
A few weeks ago I tried out the furnace for the first time without AC power and I only recall it running the floor blower vents.
Today I tried the same plugged into AC power, and the roof unit fan is also running. Floor vents are blowing warm air.
Is that right? I suppose the roof fan is just helping circulate the heat. But since it's kinda loud, is there an easy way to run the furnace without the roof unit fan?
TIA
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