Saturday, 30 July 2022

ECM Constant Torque Verse Variable Speed

I have a quote which I mentioned in a previous post on the following:

Silver S8X1B040M2PSCA BTU 80 % Gas Furnace
Gold 4A7A7024A1000C Condenser
4TXCB003DS3HCA Coil

The furnace quoted is a constant torque ECM motor with 9 speeds with the ability to set one speed for low stage cooling and another speed for high stage cooling.

Is there any major benefit in stepping up to the Gold 80V variable speed mainly for better humidity control , I am in the SC so the 2 stage heating is not a feature that matters to me in my climate. If I go to this ,am I required to use the communicating thermostat since the furnace has Comfort R , even though the outdoor unit is not communicating to gain any benefit at all ? With the variable speed and a 2 stage compressor, will the variable speed automatically increase the blower speed for the second stage of cooling ? In your professional opinion is there anything worthwhile to gain for the increased cost of the furnace.


source https://hvac-talk.com/vbb/threads/2241297-ECM-Constant-Torque-Verse-Variable-Speed?goto=newpost

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