Intergas Heating Ltd
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Tabel 5a: Determining the correct setting of CO
2
at minimum output for natural gas G20
(open casing)
Natural gas G20 (20 mBar)
Measured value am maximim power
(See § 8.9.1 )
Prescribed value at minimum power
(= 0.5 x CO
2
(H) + 4.2)
CO
2
(H) [%] CO
2
(L) [%]
9.6 9.0 ±0.1
9.4 8.9 ±0.1
9.2 8.8 ±0.1
9.0 8.7 ±0.1
8.8 8.6 ±0.1
8.6 8.5 ±0.1
Tabel 5b: Determining the correct setting of CO
2
at minimum output for Propane G31
(open casing)
Propane 3P G31 (30 & 50 mBar)
Measured value am maximim power
(See § See § 8.9.1)
Prescribed value at minimum power
(= CO
2
(H) – 0.3)
CO
2
(H) [%] CO
2
(L) [%]
10.8 10.5 ±0.1
10.6 10.3 ±0.1
10.4 10.1 ±0.1
10.2 9.9 ±0.1
10.0 9.7 ±0.1
9.8 9.5 ±0.1
Example (when using natural gas G20)
During the measurement at maximum output the value of O2(H) was 4.1 %.
The setting for O2(L) at minimum output will then be 5.05 ± 0,2 %
6. Replace the cap A of the adjustment screw B for protection
7. Repeat the measurement at maximum and minimum output (see § 8.9.1 and § 8.9.2)
to ensure the correct operation of the boiler.
Important
Work on gas carrying parts may only be carried out by a qualified
competent person.
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