Mounting / Connection - STIEBEL ELTRON RTU-S UP Stiebel Operating And Installation Instructions

7. Mounting / connection

The device equipped with the 50 x 50 mm housing cover can be integrated into almost all
currently available flush switch installation frame systems when using DIN 49075 compliant
intermediate frames. The device equipped with the 55 x 55 mm housing is, likewise, suited for
use with different frame systems. If using multiple frames, the controller needs always to be
mounted in the lowest position. The controller is determined for installation in a flush-mounted
socket and may not be exposed to any heat or cold sources. The controller must not be
exposed to direct cold or heat sources. Furthermore, care must be taken to ensure that the
device is not exposed to the influence of foreign heat or cold sources that warm or cool the
device at its back (through air flows in cavity walls or the temperatures radiated by ascending
pipelines, f. ex.). The controller should be mounted on the wallpaper / the wall covering.
Caution: Prior to performing any installation works, always make sure to disconnect the mains
voltage at all poles! The electrical connection is to be realized as shown in the connection
diagram in section 8 herein. The plug-type terminals can comfortably be pre-wired for this
purpose and connected to the controller while installing it into the under plaster box. The
opening of the device is realized as described in the drawing below by holding the housing
cover at the top and bottom and pulling it open.
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