1. A method for employing a first subnet controller in an HVAC network, comprising: conveying a fixed parameter from a first networked device in said HVAC system to said first subnet controller; conveying a variable parameter from said first networked device in said HVAC system to said first subnet controller; and providing an option to a user to modify said variable parameter; determining whether an entire memory of said subnet controller is corrupted, said memory correlating to stored parameters for a given set of devices in a subnet of said HVAC network, wherein if said entire memory is corrupted, requiring all devices of said given set of devices to convey to said subnet controller: a) a full feature manifest, and b) a full parameter scan.