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  1. General HVAC Discussion
    Good day to all! I'm a freelance electronics engineer, and I've just been engaged by a client who is developing a product to be used in residential HVAC systems. I'm not allowed to say what the product is, but I can say that it would be connected electrically to the furnace control board. I'm...
  2. General HVAC Discussion
    On a Carrier Infinity package heatpump, I have been told I have to use a 4 wire UI controller. The stat i have is a Carrier one-for all t-stat. P/N TSTATCCPF701. Will this stat work with this unit, or do I need one that is designated an Infinity controller? This is the first Infinity I have...
  3. Business, Marketing, and Sales
    Howdy all, I am looking to expand my inventory on defective furnace control boards. (commercial or residential) I know most get thrown away but I am willing to offer a cash incentive per board. Please feel free to message me if you have any questions or concerns. Tanks Berry Much!! :thumbsup:
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