I-Vu Open System - BACnet MS/TP Networks Bus Wiring

Carrier's recommendations for the configuration, setup, installation, start-up and wiring for a BACnet MS-TP network that will provide the best network performance with i-Vu Open controllers.

[@RSV4BOY]

Hi, This was great! Its hard to get clear and concise info from a Carrier controls guru when you cant ask a formulated question because you don't know the special vocabulary and acronyms. These two videos have answered many questions for me, so THANKS!
Who at RJM gave this presentation BTW ( I promise not to bug you.-lol

[@dickc711]

Technically, and per BACnet/Manufacturers instructions, yes. There should be a PROT485 at each roof penetration. The object is to isolate a lightening strike to the roof.

[@RJMurrayCo]

Carrier's recommendations for the configuration, set-up, installation, start-up, and wiring for a BACnet MS/TP network that will provide the best network performance with i-Vu Open Controllers.

[@martintovar2537]

Good afternoon, the PROT-485, it is recommended when the communication goes from an interior area to an exterior one or vice versa ... if there are many machines on the roof, they can be placed in the units where the communication is between the interior or exterior or vice versa. ... the a / c unit as such must have its protections against electrical noise so as not to affect it in the future.

[@StupidPeasant]

Would you then install a PROT485 inside each package unit before going down into the building or would it have to be installed inside the building below the roof penetration. This is not clear in the manuals.

[@StupidPeasant]

If installing this on many package units on a large roof, the wires would enter and exit the building at every unit. Would it need the surge protector at every unit?