26 VRT 230 Installation Manual
11 Start-up
Some system parameters have to be set
in order for them to best suit the actual
conditions. These system parameters are
all together in the installer level and
should only be set by the heating engi-
neer.
The service/diagnostic level is also
intended for the engineer and is
designed to help during servicing.
11.1 Installer level
Press the P button to access the installer
level.
• Press the P button for 10 seconds.
The spanner symbol and the first
parameter appear in the display.
• Press the dial. You can select all the
system parameters in turn.
• Turn the dial to set the values you
want.
When you press the P button the display
returns to basic mode.
11 Start-up