SSB 6720866940 (2017/11) US
Commisioning | 23
Reassemble the components and connect the gas supply line.
Use the control panel to enter in the parameter list and change the
parameter no.98 (Gas Type) from “NG” to “LPG”.
Adjust the CO
2 level according to the values shown in Tab. 9.
Inner Diameter LPG Orices (mm)
Boiler model Inner diameter LPG orices (mm)
SSB85 5.5 Ø
SSB120 5.0 Ø
SSB160 6.25 Ø
Tab. 8 Gas Orice Diameter
7.4 CO2 Setting
Begin adjustment of the boiler as per instructions below:
[1] Insert the combustion analyzer probe inside the ue access port.
(Fig. 56);
Fig. 56 Flue access port.
[2] Turn the unit on using the ON/OFF switch located on the top panel
[3] To run the burner at high re. Press “Menu” select “System Test”
using the arrow keys, then press “OK”
Menu
Domestic Hot Water
Information
Settings
System Test
Fig. 57 System test menu
[4] Select “High Power” using the up/down arrow keys
/ . The
burner will start and run at maximum rpm. Adjust the CO
2 value
until it is between the range reported in table 7. To increase the CO
2
turn the proportional control screw, “A” (Fig. 46 - Fig. 47), counter-
clockwise (all models);
System Test
Test State High Power
Fan Speed 0 rpm
Ionisation 0.0 μA
Fig. 58 System test menu
[5] Select “Low Power” using the up/down arrow keys
/ . The
burner will modulate and run at minimum rpm. Adjust the CO
2 value
until it is between the range reported in table 7. To increase the CO
2
turn the proportional control screw, “B” (Fig. 46 - Fig. 47), clockwise
(all models).
System Test
Test State Low Power
Fan Speed 0 rpm
Ionisation 0.0 μA
Fig. 59 System test menu
[6] Select “OFF” using “Up/Down” button
/ and press “OK”. The
“Test State” switches to OFF and the boiler goes back to the “stand
by” mode.
System Test
Test State Off
Fan Speed 0 rpm
Ionisation 0.0 μA
Fig. 60 System test menu
Gas Type Max. power CO2% Min. power CO2%
Natural gas 8.8-9.2 8.8-9.2
LP gas 10.3-10.7 10.3-10.7
Tab. 9 CO
2 value for gas valve calibration
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