Mounting pre-requisite: "breather" holes

The base of the unit features a "breather", a series of small holes which allow air to circulate between the underside of the unit and the mounting surface.

1. Location of “breather” holes.

Ensure that the breather is not blocked in any way. Examples of obstacles to airflow include sealant and paint.

If necessary, use additional washers to allow a small gap between the underside of the unit and the mounting surface, for airflow.