14
Operation
4
4
4.1 Display and input
The display (1), with its extensive
text and graphics mode, is almost
self-explanatory, allowing easy
operation of the controller.
The LED (2) lights up green when a
relay is switched on.
The LED (2) lights up red when
operating mode „Off“ is set.
The LED (2)
fl
ashes slowly
red in the operating mode „Manual“.
The LED (2)
fl
ashes quickly
red when an error is present.
Entries are made using four keys
(3+4), to which different functions
are assigned depending on the
situation. The „esc“ key (3) is used
to cancel an entry or to exit a menu.
If applicable there will be a request
for con
fi
rmation as to whether the
changes which have been made
should be saved.
The function of each of the other
three keys (4) is shown in the dis-
play line directly above the keys;
the right-hand key is generally
has a con
fi
rmation and selection
function.
Examples of key functions:
+/- = enlarge/shrink values
/ = scroll menu down/up
yes/no = approve/reject
Info = additional information
Back = to previous screen
ok = con
fi
rm selection
Con
fi
rm = con
fi
rm setting
Examples of display symbols:
Pump (rotates in operation)
Valve (direction of
fl
ow black)
Heat pump (compressor)
Buffer storage tank
Domestic hot water storage tank
Temperature sensor
Warning / error message
New information available
(1)
(2)
(3)
(4)