Install the sauna heater and the vaporizer in front of the air intake according to the manufacturer’s installation instructions. Draw the silicone cable through the ductwork to the relay box and connect it to the appropriate terminals as directed in the wiring diagram. Make sure to observe the wiring diagrams on pages 18 – 19 with the corresponding terminal connection scheme. Notice: In case there is no ductwork available drill a hole next to the air intake opening and run the heater line through this hole to the outside and to the appropriate terminals in the control unit. The silicone line must be buried to protect it from outside in” uences. Therefore, use a suitable cable-duct or a PVC-pipe through which you can run the line up to the power unit.