EbV Product documentation THETA NORM/UNIT
2-1
2 General safety instructions
2.1 Application
The controller family THETA is designed exclusively for the control of warm water heating and district
heating systems including domestic hot water control. These systems should not exceed a flow temperature
of 120 °C.
2.2 Conditions for start-up
CAUTION The heating installation must be completed and filled with water in order to prevent
the pumps from running dry and to avoid damage of the boiler.
CAUTION Switch off plant completely before opening boiler control panel! Do not plug or unplug
electrical connectors under voltage. This may damage the controller or cause
dangerous electrical shock.
The controller must be installed according to the installation instructions.
All electrical connections and safety measures have to be carried out by a specialist
according to the valid norms and VDE-guidelines as well as the local instructions.
The electrical connection must be fix (see instructions by VDE 0100).
The electrical connection has to be done according to the wiring diagram of the
respective boiler control panel.
If a floor heating system is connected, a limiting thermostat must switch off the pump
if the flow temperatures are too high.
The heating specialist must check all the above mentioned requirements before
switching on the controller.
IMPORTANT NOTE! The current time and date are already set by the factory and backed up by a battery.
The timer has a basic time program already activated and the control functions for
standard heating systems with low temperature boilers are pre-adjusted.
If this happens the backup battery will be stressed unnecessarily. Also the frost
protection functions of the controller will be shut down.
All electrical connections must be carried out by qualified personnel.
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