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7.2.2
Adjusting to a different gas type
Warning
Only a qualified installer may carry out the following operations.
Important
If the boiler is adapted to another gas type, this must be stated on
the sticker supplied. This sticker must be affixed next to the data
plate.
Before operating with a different type of gas, carry out the following steps.
Adjusting fan speed parameters for different gas types
The factory fan speed settings can be adjusted for a different type of gas
at installer level.
1. Select the tile [ ].
2. Press the button to confirm the selection.
3. Use the rotary knob to select code: 0012.
4. Press the button to confirm the selection.
When the installer level is enabled, the status of the tile [ ]
changes from Off into On.
5. Select the tile [ ].
6. Press the button to confirm the selection.
7. Use the rotary knob to select Parameters, counters, signals.
8. Press the button to confirm the selection.
9. Use the rotary knob to select Adv. Parameters.
10. Press the button to confirm the selection.
A list of available parameters appears.
11. Use the rotary knob to select the required parameter.
12. Press the button to confirm the selection.
The current value appears.
13. Use the rotary knob to change the setting.
14. Press the button to confirm the selection.
Fan speeds for different gas types
For boiler C 640, apply the instructions to each boiler module.
1. Adjust the fan speed (if necessary) for the gas type used according to
the table below. The setting can be changed with a parameter setting.
Tab.50 C 340 - Adjustment for gas type G25 (L gas)
Code
Displayed text
Description
280
350
430
500
570
650
DP003
Abs. max fan
DHW
Maximum fan speed on Domestic
Hot Water
5300
5600
3500
3800
4300
4200
GP007
Fan RPM Max
CH
Maximum fan speed during Central
Heating mode
5300
5600
3500
3800
4300
4200
GP008
Fan RPM Min
Minimum fan speed during Central
H Domestic Hot Water
mode
1400
1550
950
1050
1100
1050
GP009
Fan RPM Start
Fan speed at appliance start
2500
2500
1300
1400
1400
1400
Tab.51 C 640 - Adjustment for gas type G25 (L gas)
Code
Displayed text
Description
560
700
860
1000
1140
1300
DP003
Abs. max fan
DHW
Maximum fan speed on Domestic
Hot Water
5300
5600
3500
3800
4300
4200
GP007
Fan RPM Max
CH
Maximum fan speed during Central
Heating mode
5300
5600
3500
3800
4300
4200
Fig.68
Installer level
AD-3001378-02
00:12
0
1
2
3
4
0
1
5
6
2
0
3
4
5
1
2
3
4
1
2
3
4
0
........ .......
........ .......
........ ......... ...
..... ... ....... .... .. ..... ....... .... ..... .......
i
7 Commissioning
60
C 340 / C 640
7762666 - v.02 - 29092020