Ferroli ATLAS D 30 K 100 UNIT Instructions D'utilisation, D'installation Et D'entretien page 38

Burner adjustment
The burner is factory-set as given in table 2. The burner can be set to a different power
by adjusting the pump pressure, nozzle, head and air setting as described in the follow-
ing paragraphs. In any case, the new power setting must come within the boiler's nominal
working range. After making any adjustments, use a combustion analyser to check that
the CO % in the fumes is between 11% and 12%.
2
Table. 2 - Burner adjustment
Heating Burner Burner
capacity model capacity
US
kW kg/h
Gall/h
30.1 SUN 2.54 0.65
Oil nozzle delivery table
table 3 indicates the oil deliveries (in kg/h) as the pump and nozzle pressure changes.
N.B. - The values given in the table are approximate, since the nozzle deliveries can vary
by ± 5%. Also, for burners with a preheater, the fuel flow rate decreases by approximately
10%.
Table. 3
Pump pressure kg/cm
NOZZLE
8 9
G.P.H.
0.40 1.36 1.44
0.50 1.70 1.80
0.60 2.04 2.16
0.65 2.21 2.34
0.75 2.55 2.70
0.85 2.89 3.06
1.00 3.40 3.61
Delivery at nozzle outlet in kg/h
Pump pressure adjustment
The pump pressure is factory set for optimum operation and should not normally be
changed. However, if special needs require a different pressure, after applying the pres-
sure gauge and lighting the burner turn the adjustment screw "6" indicated in fig. 26. It is
anyhow recommended to keep within the range of 10 - 14 bar
10 15
5 20
0 25
4
3
1
fig. 25 - SUNTEC pump
38
EN
Pump Head
Nozzle
pressure adjustment
Angle Code Bar L
60° 35601320 10 22
2
10 11 12 13
1.52 1.59 1.67 1.73
1.90 1.99 2.08 2.17
2.28 2.39 2.50 2.60
2.47 2.59 2.71 2.82
2.85 2.99 3.12 3.25
3.23 3.39 3.54 3.68
3.80
m h O
2
5
P
V
7
2
cod. 3540S756 - Rev. 01 - 03/2015
ATLAS D 30 K 100 UNIT
Air
adjustment
Mark
3
11
6
14
1. Inlet (suction)
2. Return
1.80
3. Outlet to nozzle
2.25
4. Pressure gauge connection
2.70
5. Vacuum gauge connection
6. Adjustment screw
2.92
7. By-pass screw
3.37
Head and air shutter
3.82
Adjust the head and air flow rate according to the burner power as indicated in fig. 27
Turn the head adjustment screw B (fig. 28) clockwise or anticlockwise until the mark on
rod A (fig. 28) coincides with the pointer.
30
25
20
B
15
10
5
0
15.0 20.0 25.0
1,26 1,69 2,11
fig. 27 - Burner adjustments graph Prodotto_Gr1
A Power
B Adjustment pointer
C Oil flow rate
6
"L" head (mm)
Air
To adjust the air flow, turn screw C (fig. 28) after loosening nut D. After making the ad-
justment, tighten nut D.
10 15
5
0
4
P
-
+
V
P
7
2 1
fig. 26 - DANFOSS pump
30.0 35.0 40.0 45.0
2,53 2,95 3,37 3,79
fig. 28 - Burner adjustment
20
25
m h O
2
5
A (kW)
50.0 55.0 60.0
C (kg/h)
4,22 4,64 5,06