Riello GS10D - Page 8

ADJUSTMENT
All these models are two stage operation. The Riello 40 GSD series
of two stage burners allows
operating at both full and
reduced output, with
consequent reduction in
turning the burner on and off,
their giving better performance
to the boiler.
During stand-by, the air
damper is completely closed
(controlled by an electric
servomotor) and prevents heat
loss due to the flue draught.
BURNER OPERATION MODE
Air damper adjustment
Output
Checked Variable
bar
°C
ON
OFF
time
time
ON
OFF
Two stage operation
1°st
2°st
This series burners are fitted with a new microprocessor control panel for the supervision during
intermittent operation.
For helping the commissioning and maintenance work, there are two main elements:
The lock-out reset button is the central operating element for resetting the burner control
and for activating / deactivating the diagnostic functions.
The multi-color LED is the central indication element for visual diagnosis and interface
diagnosis.
Both elements are located under the transparent cover of lock-out reset button, as showed below.
There are two diagnostic choices, for indication of operation and diagnosis of fault cause:
- visual diagnosis :
- interface diagnosis :
by the interface adapter and
a PC with dedicated software
or by a predisposed flue gas
analyzer (see paragraph
accessories).
Switch
Switch
COMPUTER
or
FLUE GAS
ANALYSER
INTERFACE ADAPTER
8