7
7.3.2 Checking the gas inlet
Note
Ensure that the boiler is switched off.
Stopping the boiler, page 69.
1. Open the main gas valve.
2. Open the gas valve on the boiler.
3. Open the front panel.
4. Check the gas supply pressure at the pressure outlet on the gas
valve unit.
Gas valves, page 62.
5. Check the tightness of the gas connections made after the gas valve
unit in the boiler.
6. Check the tightness of the gas pipe, including any valves, from the
non-return valve to the burner. The test pressure must not exceed
60 mbar (6 kPa).
7. Vent the gas supply pipe by unscrewing the pressure outlet on the
gas valve unit. Close the outlet again when the pipe has been suffi
ciently vented.
8. Check the tightness of the gas connections in the boiler.
7.3.3 Checking the electrical connections
1. Check the electrical connection to the mains.
2. Check the connection and positioning of the sensors.
3. Check the connection of the circulating pump(s).
7.3.4 Checking the hydraulic circuit
1. Check the siphon, which must be completely filled with water.
2. Check that there are no leaks on the boiler's hydraulic connections.
3. Check the pressure in the expansion vessel before filling the sys
tem.
7.4 Gas settings
7.4.1 Configuring the fan speed
The boiler's fan speed has to be configured according to gas type before
the gas valve is set.
Fan speed according to gas type, page 59.
1. Access the installer parameters
Modifying the installer parameters, page 68.
2. Select the B
menu by turning the button.
3. Confirm the menu selection by pressing the
button.
4. Modify parameter 2441 F
according to gas
type. Use the
button to select and modify the parameter.
Fan speed according to gas type, page 59.
5. Confirm the setting by pressing the
button.
6. Select the B
menu by turning the button.
7. Modify parameters 9512 R
, 9524 R
and 9529 R
according to gas type. Use
the
button to select and modify the parameters.
7 Commissioning
58 7609474 - v02 - 04092014
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