Ats control cables

[Shaneyj]

I'm doing my first ATS.
Do the ac and DC control wires need to be run in a separate conduit?
I am using a 3 conductor shielded cable.
If it makes a difference, it is a Honeywell 20kw with service rated ats.

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[SceneryDriver]

It depends on the manufacturer's instructions. What do the install instructions say? Millbank, for instance, requires a separate conduit for the COMs cable. I think Generac allows all conductors to be in the same conduit.

Personally, I'd run two conduits. Cleaner install, and no chance of the large power conductors tearing up the COMs cable during the wire pull. As someone in a recent thread also noted, separate conduits allow you to pull a CAT6 cable for instrumentation in the future, if you want to.



SceneryDriver

 

[Shaneyj]

Manual does not address it specifically. It does say to sleeve either the 3 ac cables or 3 dc cables with a supplied piece of nylon once inside the generator jbox. But nothing regarding conduit.


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[SceneryDriver]

Manual does not address it specifically. It does say to sleeve either the 3 ac cables or 3 dc cables with a supplied piece of nylon once inside the generator jbox. But nothing regarding conduit.


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Call the manufacturer and (preferably) get something in writing, or be conservative and just run two conduits. I'd run two unless there was a really compelling reason not to, and the manufacturer allowed everything in one pipe.


SceneryDriver

 

[Shaneyj]

Call the manufacturer and (preferably) get something in writing, or be conservative and just run two conduits. I'd run two unless there was a really compelling reason not to, and the manufacturer allowed everything in one pipe.


SceneryDriver

Thanks for the input. I'm going to run a separate conduit.

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[Chamuit]

Generac - you can run all the conductors in one conduit or via TC.

Kohler - you have to run separate conduits.

As mentioned earlier, check with the manufacturer.