ADJUSTMENT
All these models are two stage operation. The Riello 40 GSD series
of two stage burners allows
operating at both full and
r e d u c e d o u t p u t , w i t h
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 V
ariable
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
