ACV International
45
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 § 7.10.1)
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 § 7.10.1)
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 (§ 7.10.1 and § 7.10.2)
to ensure the correct operation of the boiler.
Important
Work on gas carrying parts may only be carried out by a qualified
competent person.
If a different type of gas is connected to the appliance than that for which the appliance has
been set by the manufacturer, the gas metering ring should be replaced. Conversion sets for
other types of gas are available to order.
03010102
A
B
