User manual | EMS-8x-DU | Beckmann GmbH
3.2 Electrical installation
CAUTION:
The installation hast to be effected by authorized staff only! Please arrange
that the assembly is carried out by a specialist electronic company.
Since this is a stationary device with line-side fixed connection, a circuit
breaker must be installed on the installation side!
The installation of the EMS-8x-DU is limited to the connection of the power supply 24V AC and the
switching outputs for the hot water valve (Lw ') and optionally the cold water valve (Lk'). For
start/stop operation morde an additional button can be be connected. The cable for this switch
must be separated from the power supply.
3.2.1 Start/Stop operation mode
For Start/Stop operation mode a button (closer)
has to be connected the provided input. In this
mode, the hot and cold water pipe are controlled
by solenoid valves. Additionally cold water can
delivery free-of-charge by setting P29.
3.2.2 Flow control operation mode
For flow control operation mode the contact of
the flow control unit is connected to the start/
stop input of the EMS-8x-DU. In this mode, only
the hot water pipe is controlled. The time period
begins with the removal of hot water.
3.3 Maintenance
The devices of the EMS-8x series are nearly maintenance-free. Only the coin selector has to be
cleaned sometimes, in order to guarantee a proper operation.
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Figure 3 :
Installation for flow control mode
Figure 2 :
Installation for Start/Stop mode
