Bosch Condens 7000 F - Conversion of Vol.% CO2 into Vol.% O2 for Burner Setting

Appendix
Condens 7000 F – 6720871560 (2019/11)
62
17.5 Conversion of vol.% CO
2
into vol.% O
2
for
burner setting
Depending on the nominal CO
2 max
in vol. – % of the distributed gas, the
named CO
2
default value can be converted into an O
2
default value
according to the following formula:
F. 1 Formula for calculating the O
2
value
[O
2
] Default value of O
2
in vol. – %
[CO
2
] Default value of CO
2
in vol. – %
[CO
2max
] Nominal value of CO
2max
for the distributed gas in vol. – %
(with LPG: CO
2max
13,75%)
Calculation example:
Default value for CO
2
= 9.2 vol. – %
Nominal value for CO
2max
= 12.0 vol. – %
F. 2 Example of O
2
value calculation
[O
2
]O
2
in vol. – %
[9,2] Default value of CO
2
in vol. – %
[12] Nominal value of CO
2max
for the distributed gas in vol. – %
 Request nominal CO
2 max
in vol. – % from your gas supplier
If the specified values for CO
2 max
and CO
2
are listed in the following
table, the corresponding O
2
value can be read off directly from the table.
Table 23 O
2
default values depending on the nominal CO
2max
value (with the read-off example)
Read-off calculation:
Default value: CO
2
= 9.2 vol. – %
Nominal value: CO
2max
= 12.0 vol. – %
Result: O
2
= 4.9 vol. – %
O
2
20,95
CO
2max
CO
2
–
CO
2max
-------------------------------------------
=
O
2
20,95
12 9,2–
12
------------------------
 4,9=
Nominal CO
2 max
for the
distributed gas [vol. – %]
11.4 11.5 11.6 11.7 11.8 11.9 12 12.1 12.2 12.3
CO
2
default value for the
burner setting [vol. – %]
O
2
value
[vol. – %]
O
2
value
[vol. – %]
O
2
value
[vol. – %]
O
2
value
[vol. – %]
O
2
value
[vol. – %]
O
2
value
[vol. – %]
O
2
value
[vol. – %]
O
2
value
[vol. – %]
O
2
value
[vol. – %]
O
2
value
[vol. – %]
8.2 5.9 6.0 6.1 6.3 6.4 6.5 6.6 6.8 6.9 7.0
8.3 5.7 5.8 6.0 6.1 6.2 6.3 6.5 6.6 6.7 6.8
8.4 5.5 5.6 5.8 5.9 6.0 6.2 6.3 6.4 6.5 6.6
8.5 5.3 5.5 5.6 5.7 5.9 6.0 6.1 6.2 6.4 6.5
8.6 5.1 5.3 5.4 5.6 5.7 5.8 5.9 6.1 6.2 6.3
8.7 5.0 5.1 5.2 5.4 5.5 5.6 5.8 5.9 6.0 6.1
8.8 4.8 4.9 5.1 5.2 5.3 5.5 5.6 5.7 5.8 6.0
8.9 4.6 4.7 4.9 5.0 5.1 5.3 5.4 5.5 5.7 5.8
9 4.4 4.6 4.7 4.8 5.0 5.1 5.2 5.4 5.5 5.6
9.1 4.2 4.4 4.5 4.7 4.8 4.9 5.1 5.2 5.3 5.5
9.2 4.0 4.2 4.3 4.5 4.6 4.8 4.9 5.0 5.2 5.3
9.3 3.9 4.0 4.2 4.3 4.4 4.6 4.7 4.8 5.0 5.1
9.4 3.7 3.8 4.0 4.1 4.3 4.4 4.5 4.7 4.8 4.9
9.5 3.5 3.6 3.8 3.9 4.1 4.2 4.4 4.5 4.6 4.8
9.6 3.3 3.5 3.6 3.8 3.9 4.0 4.2 4.3 4.5 4.6
9.7 3.1 3.3 3.4 3.6 3.7 3.9 4.0 4.2 4.3 4.4
9.8 2.9 3.1 3.6 3.4 3.6 3.7 3.8 4.0 4.1 4.3
9.9 2.8 2.9 3.1 3.2 3.4 3.5 3.7 3.8 3.9 4.1
10 2.6 2.7 2.9 3.0 3.2 3.3 3.5 3.6 3.8 3.9
10.1 2.4 2.6 2.7 2.9 3.0 3.2 3.3 3.5 3.6 3.7
10.2 2.2 2.4 2.5 2.7 2.8 3.0 3.1 3.3 3.4 3.6