Values at full load for G20 (H gas)
O
2
%
CO
2
%
Gas 220 Ace 250
4.8 - 5.2
- 9.0
Gas 220 Ace 300
4.8 - 5.2
- 9.0
(1) nominal value
Tab.34 Checking/setting values for O
2
/CO
2
at full load for G30/G31
(butane/propane)
Values at full load for G30/G31 (butane/
propane)
O
2
%
CO
2
%
Gas 220 Ace 160
5.1 - 5.4
- 10.4
Gas 220 Ace 200
5.2 - 5.5
- 10.3
Gas 220 Ace 250
5.2 - 5.5
- 10.3
Gas 220 Ace 300
5.2 - 5.5
- 10.3
(1) nominal value
Caution
The O
2
values at full load must be lower than the O
2
values at
low load.
The CO
2
values at full load must be higher than the CO
2
values
at low load.
3. If the measured value is outside of the values given in the table,
correct the gas/air ratio.
4. Using the adjusting screw A, set the percentage of O
2
/CO
2
for the gas
type being used to the nominal value. This should always be inside
the highest and lowest setting limit.
Important
The boilers are supplied with a variety of gas valve units.
Compare the gas valve unit in the boiler with those in the drawings
and see the drawing for the position of adjusting screw A for full
load.
Enable part load
1. Press the two keys on the left simultaneously to select chimney sweep
mode.
The device is now running at part load. Wait until L:XX° appears on
the display.
2. Press the
h
key to go back to the main display.
Fig.58
Position of adjusting screw A
AD-0001327-02
2
1
A
2
A
1
Fig.59
Step 1
MW-3000325-01
7 Commissioning
48
7665063 - v.05 - 18102018