Intergas Heating Ltd
38
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 § 10.8.1)
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 (37 mBar)
Measured value am maximim power
(See § 10.8.1)
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 %
1.
Replace the cap A of the adjustment screw B for protection
2.
Repeat the measurement at maximum and minimum output (§ 10.8.1 and § 10.8.2)
to ensure the correct operation of the boiler.
Important
Work on gas carrying parts may only be carried out by a qualified
competent person.
03010102
A
B
