RDZ WHR 61 Technical Installation Manual page 31

By using a measure level tool, mark and make four holes to fix on the wall the internal wall-
mounting part (4i).
Unlike the external wall mounting part, on the internal wall is necessary to bring the power supply
conductors to connect them to the stripped wires supplied with the product.
Provide an output for the wires, as the highlighted area shown in the picture
.
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