Dynon Avionics Heated AOA/Pitot Probe - Manual (Page 16)

Heater Controller Mounting and Wiring
3-2 AOA/Pitot Probe and Heated AOA/Pitot Probe Installation Guide Rev. C
Mounting the Controller
The Heated AOA/Pitot Probe
controller should ideally be
mounted close to the Heated
AOA/Pitot Probe on the underside
of the wing to not require extending
the included wires connecting the
Probe to the controller. As with all
avionics units, the controller should
be mounted such that it can be
accessed should service or
replacement ever be required. The
controller’s overall dimensions are:

Width: 5.042” (128.07mm)

Depth: 1.742” (44.25mm)

Height: 1.187” (30.15mm)
The mounting holes are sized for a
#6 screw. Hole to hole dimensions
are referenced in the diagram.
When mounting the controller close to the probe, ensure that it is close enough for its wires to
mate with the probe’s, with room for strain relief. If you find it difficult to mount the controller
in the wing, or simply wish for the controller to be mounted closer to the battery, you must
extend the wires using the correct wire gauge per the chart below.
When the desired location is selected, secure the heater controller via the 4 mounting holes.
Route the wiring between the probe, controller, panel, and power source, as described below.
Wiring the Controller
For all electrical connections, use correct wiring techniques, taking care to
properly insulate any exposed wire. A short circuit between any of the wires may
cause damage to the Heated AOA/Pitot Probe, controller, or your airplane. Make
all connections to the harnesses before plugging it into any of the components of
the system. Do not make connections while power is applied at any point in the
system.
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.