Unit - Ferroli SUN G50 Operating, Installation And Maintenance Instructions

SUN G50 - G70
LMO24 fault-diagnosis and operation
The burner release button "EK" is used to reset the burner unit and to turn the fault-
diagnosis functions on and off.
The multicoloured LED is used for both types of fault diagnosis.
The "EK" button and the LED are located under the transparent cap of the release
button.
Two types of fault diagnosis can be used.
1 Visual fault diagnosis - The burner's operating status or the cause of the fault is
displayed.
2 Interface fault diagnosis - Using the OCI400 interface and the ACS400 software or a fume analyzer.
Visual Fault Diagnosis
During normal operation, the various operating statuses are shown by the colour combinations as shown
in the table below.
Interface fault diagnosis is activated by pressing the burner release button for at least 3 seconds. If this
mode gets turned on accidentally, a weak red light starts blinking; to go back to the normal mode, just
press the Reset button again for at least 3 seconds.
The passage from one mode to the other is shown by the yellow LED blinking.
States
Pre-ventilation
Ignition phase
Operation, flame correct
Operation, flame defective
Low voltage
Shutdown
Fault display (see fault table)
Foreign light in pre-ventilation
Fault diagnosis with interface
GB
Operating position
Visual fault diagnosis
Colour code table
Colour code table during the ignition phase
- Off - Green
- Yellow - Red
Cod. 35445644 - 08/2007 (Rev. 00)
Operating position
PC/analyzer
interface
fault diagnosis
Colour sequence
- Continuous
Red
Yellow
Green
Colours
Yellow
Blinking yellow
Green
Blinking green
Yellow - Red
Red
Red
Green - Red
Weak red
LED blinking
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