Dynon Heated Pitot Ground

[kcavallo]

[Sorry this was posted to the wrong topic but I can't fix it]

Installing a new Dynon heated pitot assembly as part of an HDX upgrade that includes an ACM.

To connect the black ground wire, according to the ACM installation manual, pg127: "Black Ground #14 Locally grounded using ring terminal".

This goes against the Dynon pitot installation manual which specifically states:

Do not connect the Black (Ground) wire to the airframe as a Ground connection.
Doing so will introduce high currents (10A) into the airframe. This can introduce a
significant voltage drop, and potentially cause engine instrumentation, avionics,
and audio system electrical problems.

What's the proper procedure for grounding the assembly?

[Oly148]

I have my Dynon Pitot/AOA probe grounded locally to one of the ribs and have no issues.