43
9.8 De-Aeration Function
Used to eliminate air inside the heating circuit when boiler
is installed or after maintenance when water is drained from
primary circuit.
1.
Press buttons together and hold for 6 seconds.
On appears on display for a few seconds, followed by
program row 312.
2.
The electronic board will activate pump on/off cycle for
10 minutes. Function will automatically stop at end of the
cycle.
3.
To manually exit this function, press buttons
together and hold for 6 seconds.
9.9 Commission Set Up (Gas) - Changing The Type Of
Gas
During the rst installation boiler carries out an automatic
commissioning function.
The system is able to detect the gas type present in the
network.
Correct gas type setting, is made by pressing two buttons at
the same time, see section 9.6 Commissioning.
Change of gas type is made after the rst installation:
• Change parameter P02. See section 9.6 Commissioning
and section 9.11 Parameter Settings.
• Check minimum gas pressure is suitable for selected gas:
Gas A (NG) = 3.5" (8.7mbar)
Gas E (LPG) = 8.0" (19.9mbar)
• Place supplied label with indication of gas type close to
the data plate of boiler replacing the original.
• Manufacturer recommends
verication of CO2 concentration
on the ue.
FIGURE 9-3 - Gas Inlet Tap - Pi
9 - START UP PROCEDURE
PI = Gas Supply Inlet Pressure Tap
D. Combustion of this appliance has been factory controlled,
calibrated and set for operation with Gas A (Natural
Gas).
E. During Gas Type Control Function, combustion ratio will
increase for a short period of time while gas type is being
established.
240011947 REV B, [03/31/2018]
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