[Harry9872]

I have a IAQ tstat connected to a new YP9C modulating furnace. In the setup for the tstat it ask how many stages the furnace has. How do I answer this with it being a modulating furnace. Also the IAQ is asking about the cycles per hour to set each stage. I have went to the dealer about this, but when he set it up the first time, he just set it up using the letter E. Thanks for the help...

 

[beenthere]

The IAQ can't control the modulation of your furnace. So set the IAQ to 1 heat. York says to set the CPH to 6. I find they tend to work better set to 3.

 

[HVAC1000]

i installed one of these today and set to 4 cycles per hour simply because of the houses size and age.