Riello 896 T Installation, Use And Maintenance Instructions page 25

Start-up, calibration and operation of the burner
5
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m³ m³/h l l/h %
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m³ m³/h l l/h %
Reset procedure
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Manual lockout procedure
If necessary, it is possible to manually block the control box and, consequently, the burner, by pressing the key "i/reset" simultaneously
with any other key of the Operator Panel.
With the switch 1-0 in Fig. 28 the burner does not stop immediately, but the switch-off phase is activated.
CAUTION
Manual operation procedure
After the adjustment of the burner and the setting of the points on
the modulation curve, it is possible to manually check the opera-
tion of the burner along the entire curve.
Example
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m³ m³/h l l/h %
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The display visualises alternately an error code and a diagnostic, which does not take
the system into safety mode.
The burner is in lockout when the red indicator light on the Operator Panel is switched
on and the display visualises alternately the lockout code (in the example alongside
c: 4) and the relative diagnostic (in the example d: 3).
To reset, press the "i/reset" key for 1s: the display will show "rESEt".
When the key is released, the lockout signal will disappear and the red indicator light will
switch off.
The control box is reset.
The burner is working at
the requested load per-
centage: 20%.
Press the key "F" for 1
second: "LoAd" is dis-
played and the load per-
centage flashes.
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m³ m³/h l
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m³ m³/h l
To emerge from Manual mode, press simultaneously the keys
"+" and "-" (esc) for 3 seconds: the burner will work in Auto-
matic mode and the output will depend on the thermostat/adjust-
ment pressure switch (TR).
25
GB
Releasing the key "F", the
standard
appears, with the current
load percentage flashing:
this means that the burner
is working in manual mode
(any outside adjustment is
l/h %
excluded and only the
safety devices are active).
Keep the key "F" pressed
and, with the keys "+" or
"–", increase or decrease
the load percentage.
l/h %
visualisation