53
Do not touch any parts of the defroster with your hands, and do not damage the
temperature sensor while cleaning!
3. Insert the heat exchanger considering the notes on Fig 46 and perform the work steps 7. to 9.
pursuant to 3.7.1.
Visualisation of errors and error treatment
3.8
The device control is equipped with an internal system for error detection.. The visualisation of the error
messages and the error forecast is made according to the display possibilities of the connected control
panel.
In response to an error condition, the fans are switched off and a by-pass available is closed.
Error signalling by means of the LED control panel
3.8.1
The visualisation of errors with the LED-control panel is carried out on the basis of 2.2.1.2. In addition to
the signalling of the error conditions, an LED coding, which does binary present the meaning of the error,
is generated by means of the LEDs L1…L7. Information on checking / measures for a possible
elimination of the error condition are given in Tab. 39.
The following LED combinations for the display of the error coding marked with “x” apply:
LED combinations
Error message
Possible cause
L1 L2 L3 L4 L5 L6 L7
x
x
Supply air temperature too low
Supply air temperature <
setpoint
x
x
Error by-pass
No end position, by-pass not
working
x
x
x
x
x
BUS version incompatible
Software versions of the
components not compatible
x
x
x
x
Too many devices connected
Too many components
connected to the BUS
x
x
x
x
x
Fan slave not connected
Lack of BUS-communication
x
x
x
x
x
Communication error of the fan
slave
Lack of BUS-communication
x
x
x
x
x
x
Communication error of the
defroster
Lack of BUS-communication
x
x
Communication error of the
heater battery
Lack of BUS-communication
x
x
x
Comm. error flap of the
geothermal heat exchanger
Lack of BUS-communication
x
x
x
Comm. error general
Lack of BUS-communication
x
x
x
x
Heating does not switch off
Error BUS-thermostat
x
x
x
General control unit error
Lack of BUS-communication
with control unit
Tab. 38: Overview binary error coding with LED-control panel
Visualisation of errors with the TFT touch panel
3.8.2
The visualisation of errors with the TFT touch panel is done in the plain text display of the error message.
In the main menu Information / Last message, the last three errors that occurred are registered in
compliance with the event with date and time. In addition to this display, a yellow warning triangle flashes
in the upper right edge of the screen.
The following plain text displays of the error message are visualised:
Содержание NOVUS 300
Страница 1: ...Version 2 0_10 2014 EN...
Страница 59: ...59 Dimensional sketch 3 9 5 Fig 47 Dimension drawing HRU NOVUS...
Страница 60: ...60 Plant 1 circuit diagram NOVUS 3 9 6...
Страница 61: ...61 Plant 2 circuit diagram NOVUS with integrated defroster 3 9 7...
Страница 62: ...62 Plant 3 Terminal scheme of through terminal X10 3 9 8...