kcavallo
03-25-2024, 07:39 AM
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?
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?