2-Stage Stat

I'm having a system installed tomorrow, and would like to know how I can tell if a 2-Stage stat is installed.
The Contractor said they are installing a VisionPRO® 8000, but when I look online I don't see anything that tells me.


Thanks

The thermostat that you are getting has many different capabilities depending on the system that you have. If you have a heat pump chances are it is 2 stage. Just ask the contractor to show you the sub base of the stat and to explain how it operates

All visionpro 8000 are at least two stage.

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Originally Posted by ADillon

All visionpro 8000 are at least two stage.

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Nope. The TH8110 is only single stage.

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Originally Posted by beenthere

Nope. The TH8110 is only single stage.

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You're correct, my mistake.

8320/8321, needs to be properly wired on both ends and installer needs to go to advanced setup and ask for 2 stage operation.

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Originally Posted by BaldLoonie

8320/8321, needs to be properly wired on both ends and installer needs to go to advanced setup and ask for 2 stage operation.

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I just had my system installed with the TH8320U1008... I didn't notice him doing anything special with the stat (he might have), but when I asked if there is anything special I need to do with regards to 2-stage operation, he said no... he programed the furnace and Stat, and it will take care of itself automatically. Is this how a 2-stage stat works... set it and forget it? How can I tell if it's setup correctly?

Thanks

Once set up, there is nothing special you need to do. To tell if its controlling the stages of the furnace. Set it 1 degree warmer then the house temp, let it run for a few minutes. long enough for the air to be warm coming out of the registers. then set it 5 degrees higher, and see if the blower increases in speed.