Intergas XTREME 36 - 8.10.2 Measuring Flue Gas at Minimum Output

59
Before measuring the flue gases at minimum output, the
measurement at maximum output must be completed.
The measured O
2
(H) or CO
2
(H) value at maximum output is
important for determining the correct value for the check at
minimum output. See §8.10.1 for measuring at maximum
output.
A. Switch on the boiler at minimum output. To do this, tap
simultaneously the Service button and the Minus button
until the capital letter L appears on the right display.
B. Wait until the readout of the flue gas analyser is stable (at
least 3 minutes).
C. Note the measured O
2
(L) or CO
2
(L) value.
O
2
(L) ... = measured minimum output O
2
value
CO
2
(L) ... = measured minimum output CO
2
value
D. Check according to Table 3a or Table 3b whether the
measured minimum output O
2
(L) or CO
2
(L) value is between
the indicated upper and lower limits.
► The O
2
lower limit is the O
2
(H) value that
was noted during the maximum output
measurement. The CO
2
upper limit is the
CO
2
(H) value that was noted during the
maximum output measurement. (See
§8.10.1, Step H)
Table 3a: Allowed CO
2
(L) limits at minimum output (open
casing)
Table 3b: Allowed CO
2
(L) limits at minimum output (open
casing)
Value limits
Gas category
Natural gas
G20
LPG
G31
O
2
[%] O
2
[%]
Upper limit 6.00 6.65
Lower limit O
2
(H) O
2
(H) + 0.5
Value limits
Gas category
Natural gas
G20
LPG
G31
CO
2
[%] CO
2
[%]
Upper limit CO
2
(H) CO
2
(H) - 0.3
Lower limit 8.4 9.4
8.10.2 Measuring flue gas at minimum output