Trane tracker 12

[SuperC00L]

Im going to be installing a tracker 12 to communicate with 3 voyager rtu's. The rtu's are voyagers equipped with factory installed tci boards. The tci board has comm3 non-isolated and comm3/comm4 isolated. The tracker 12 only shows comm5 communications in the installation instructions. It says it works with tci boards but do I need some component to make communications the same?

[gwoner]

comm 4 and polarity is sensitive

[mallron]

I thought that Tracker V.12 only uses LON or com5. You need a Varitrac to talk to com4

[SuperC00L]

Thanks for the help. Turns out things were shipped wrong. It was shipped with the tci which works with the varitrac. Because I dont have any zone dampers it needs the lci board for comm5. The confusion came when we ordered motorized dampers with potentieometers(economizer without sensors and no barametric dampers) thanks again for the help