Double-frequency cipher can solve the problem of multimachine mutual interference fairly good by handling the remote control and autocorrection of welding current.
Recirculating control aquastat must be set at least 5oF to 10oF lower than the temperature setting of the Series N170-M2 valve, otherwise the recirculator will run continually.
What controls remain for the users will be audio-based, so, for example, you'll just have to say " a bit warmer" , and the air conditioning will adjust automatically.