Fondital GIAVA KRB 12, Руководство по установке, использованию и техническому обслуживанию, Страница: 60 / 68

60
Gas pipe
Mixer
Air intake
pipe
Gas valve
fig. 31
fig. 32
fig. 33
fig. 34
O-ring
Nozzles
Venturi to mixer
retaining screws
Gas fitting
Retaining
screws
Direction tab
3.6.3. Gas valve setting
3.6.3.1. Maximum heating output adjustment
- Make sure that the ambient thermostat (optional), if fitted, is set to ON.
- Select the "heating" mode on the control panel pressing key
n times until symbol is displayed.
- Start the ‘flue cleaning’ function by keeping key pressed until symbol stops flashing. Boiler switches to max. output operation.
- If a gas switching has been made, access the programming page and set the P0-P4-P5-P6-P7-P8 parameters based on the power and on the gas,
as specified in tab. 14.
- Set the flue (CO
2
) rate by turning the ratio adjuster B (fig. 35) and ensure that reading falls within the limits of tab. 17. Let boiler flue cleaning
function on and continue with the next point ”Minimum heating output adjustment" .
3.6.3.2. Minimum heating output adjustment
- Set boiler min. output operation by keeping symbol ‘-’ pressed on the DHW temperature adjustment key until the value corresponding to fan min.
speed for the output and boiler gas (refer to tab. 14) is displayed.
- Boiler switches to min. output operation.
- Set the flue (CO
2
) rate by turning the offset adjuster C (fig. 35) and ensure that reading falls within the limits of tab. 17.
- Keep key pressed to end the flue cleaning function.