Checking The Gas Inlet; Checking The Electrical Connections; Checking The Hydraulic Circuit; Gas Settings - Baxi POWER HT+ Series Installation And Service Manual

7 Commissioning
7.4

Gas settings

58

7 7 .3.2 Checking the gas inlet

Note
Ensure that the boiler is switched off.
See
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.
See
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.

7.4.1 Configuring the fan speed

The boiler's fan speed has to be configured according to gas type before
the gas valve is set.
See
Fan speed according to gas type, page 59.
1. Access the installer parameters
See
Modifying the installer parameters, page 68.
2. Select the B B oiler Settings menu by turning the
3. Confirm the menu selection by pressing the
4. Modify parameter 2441 F F an speed heating max according to gas
type. Use the button to select and modify the parameter.
See
Fan speed according to gas type, page 59.
5. Confirm the setting by pressing the
6. Select the B B urner control menu by turning the
7. Modify parameters 9512 R R equired speed ignition, 9524 R R equired
speed LF and 9529 R R equired speed HF according to gas type. Use
the button to select and modify the parameters.
button.
button.
button.
button.
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