3.
c
press this button again,
"
Außentemperatur
" (outside
temperature) is displayed.
4.
b
for the required language.
5.
d
to confirm.
Checking the gas type
The boiler is equipped with an electronic combustion control unit that adjusts
the burner for optimum combustion in accordance with the prevailing gas qual-
ity.
The boiler can be operated with natural gas in the Wobbe index range 10.0 to
16.1 kWh/m
3
(36.0 to 58.0 MJ/m
3
) without conversion.
1.
Determine the gas type and Wobbe
index from your gas supply utility.
2.
Record the gas type in the service
report on page 112.
Wobbe index ranges
Gas type
Wobbe index range
kWh/m
3
MJ/m
3
Delivered condition
Natural gas E
or
12.0 to 16.1
43.2 to 58.0
Natural gas LL
10.0 to 13.1
36.0 to 47.2
Function sequence and possible faults
Display screen
Measures
Control unit is-
sues heat de-
mand
No
Increase set
value and ensure
heat is drawn off
Yes
Fan starts
No
after approx. 51 s
fault F9
Check the fan, fan
connecting
cables, power at
the fan and fan
control
Further details regarding the individual steps
(cont.)
12
Commissioning, inspection, maintenance
5692
761
GB
Содержание Vitodens 200-W WB2B Series
Страница 105: ...A1 Main PCB A2 Power supply unit Connection and wiring diagram external connections 105 Designs 5692 761 GB...
Страница 109: ...Parts lists cont 109 Parts lists 5692 761 GB...
Страница 110: ...Parts lists cont 110 Parts lists 5692 761 GB...
Страница 111: ...Parts lists cont 111 Parts lists 5692 761 GB...
Страница 118: ...118 5692 761 GB...
Страница 119: ...119 5692 761 GB...