Installation And Commissioning - Stiebel Eltron ZSE 5 Utilisation Et Installation

INSTALLATION AND COMMISSIONING

Installation and commissioning
Only qualified electricians who have been authorised by
the network operator and trained on the product may install
the device. Always observe the attached safety instructions
during installation!
Deinstallation of the old device
Disconnect the control cabinet before installation.
 Mark old cables according to the existing terminal
assignment.
(This makes it easier to install the new device later.)
 Disconnect the cable and remove the device.
Installation of the control unit
Protection against contact according to protection class II is
guaranteed by the following measures:
 installation in small distribution board according to DIN
57603/VDE 0603 (e.g. distributor of the N-system) or
 installation in distribution board according to DIN
57659/VDE 0659
The regulations according to VDE 0100 must be observed.
According to DIN EN 50350, a control unit with ED system
must be installed at the coldest point, i.e. in the lowest
4 | ZSE 5
mounting row of the distributor. A space of a horizontal
pitch unit should be kept free on both sides.
The group control unit must be connected according to the
following connection diagram. The following details must be
observed.
 The connections at L and N terminals must not be
interchanged.
 To replace the fuse, pull the unit off the socket. The fuse is
accessible from the rear. A spare fuse is located in the de-
vice socket (refer to Technical Data).
 The maximum permissible control power is 160 W. It must
be ensured that the maximum control power is not
exceeded. This is the case if the total resistance of all con-
trol resistors in the storage heating system is not less than
unit). The control power depends on the types and num-
ber of devices. The total control power results from the
addition of the individual control powers.
 If the A1/A2 output is overloaded, the fuse in the device
will be destroyed and must be replaced.
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