Technical data

51
CTC EcoZenith i250
Installation
12. Pipe installation
The installation must be carried out in accordance with current standards
and regulations. The product must be connected to an expansion vessel in
an open or closed system.
Do not forget to flush the radiator system clean before connection.
Apply all the installation settings based on the description in the chapter on
“First start”.
12.1 Filling
Filling valve (no. 90, see schematic diagram on next page) is connected
to the radiator return pipe. Alternatively, the valve can be installed in the
direction of the expansion pipe. When filling the system, the mixing valve (Y1)
must be wide open. Pull out the knob on the valve and turn it anticlockwise
as far as you can. Do not forget to push in the valve’s knob in automated
mode.