Wiring – How to connect a 3 wire cable to a 2 wire outlet

The fan switch is a three pole switch - basically three switches that operate at once.

The switch should have two sets of three terminals, labelled L1, L2, and N, plus earth terminal(s). Connect one red wire to each L1 terminal, one yellow wire (with the red sleeve) to each L2 terminal, one blue wire to each N terminal, and the earth wire(s) to the earth terminal.

The yellow wires with the red sleeve is the switched live from the light switch, which turns the fan on. The red wire provides the permanent live to allow the fan to run on for a period when the light is turned off.

You can't do it, it means exactly what it says.

The manufacturer wants "neutral" (EU blue) to be near the same voltage as ground/earth (green). They are specifically saying DON'T do what you're trying to do, connecting line (EU brown) and neutral (EU blue) to two phases of hot (US black/red).

Transformers are your friend

A step-up/step-down transformer will do what you want. It is an autotransformer that takes 120V hot and neutral, and gives 240V hot and neutral. Neutrals are at the same potential. These are packaged commercial products with the correct cords and receptacles for your market. They are heavy because they are full of copper and iron.