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SETTINGS
Oil rate adjustment - Single stage burners
Priming the pump
Before carrying out the adjustment it is necessary to start up the fuel pump, proceeding as follows:
Prior to start up the burner, make sure that the return pipe to the tank is not obstructed. Any obstruction would
Start the burner, light up the photoresistor after the opening of the solenoid valve and escape the air from the pressure port.
The fuel flow rate is set choosing a properly dimensioned nozzle and setting the inlet pressure on the pump (see the hydraulic
diagram in ).
To choose the correct nozzle refer to tables ; for setting of the pump pressure, see on pagina 9. For further informations on fuel
pumps, refer to the appendix.
Note: all pumps are set to 12 bar. The nozzle rate must not be lower than the minimum burner output.
Key
EV
Light oil solenoid valve
M
Manometer
P
Pump
Tab. 4 - Choice of the oil nozzle - Single stage burners
GPH
Kg/h
0.40
1.52
0.50
1.90
0.60
2.28
0.65
2.47
0.75
2.85
0.85
3.23
1.00
3.80
1.10
4.18
1.20
4.56
1.25
4.75
1.35
5.13
1.50
5.70
1.65
6.27
1.75
6.65
2.00
7.60
2.25
8.55
2.50
9.50
3.00
11.40
3.50
13.30
4.00
15.20
4.50
17.10
The pump is set in the factory to a pressure of 12 bar.
cause the pump seal to break.
10 bar
kW
kcal/h
15.500
18
19.400
22.5
23.250
27
25.200
29.2
29.100
33.8
33.000
38.3
38.800
45
42.600
49.5
46.500
54
48.400
56.2
52.300
60.7
58.000
67.3
64.000
74.4
68.000
79
77.500
90.1
87.200
101.4
97.000
112.8
116.000
134.9
135.800
157.9
155.200
180.4
174.600
203
PART I: INSTALLATION MANUAL
P
M
12 bar
Kg/h
kcal/h
1.67
17.100
19.8
2.08
21.200
24.6
2.50
25.500
29.6
2.71
27.600
3.12
31.800
36.9
3.54
36.100
41.9
4.16
42.400
49.2
4.58
46.700
54.2
5.00
51.000
59.2
5.20
53.00
61.5
5.62
57.000
66.2
6.24
63.600
73.9
6.86
69.900
81.3
7.28
74.200
86.3
8.32
84.800
98.6
9.36
95.400
10.40
106.000
123.3
12.48
127.200
14.56
148.750
16.65
170.000
197.7
18.73
191.250
222.4
Fig. 7
EV
14 bar
kW
Kg/h
kcal/h
1.80
18.400
2.25
22.900
2.70
27.500
32
2.92
29.800
2.7
34.400
3.82
39.000
4.50
45.800
4.95
50.500
5.40
55.500
5.60
57.100
6.07
62.000
6.75
69.000
7.42
76.000
7.87
80.000
8.99
92.000
111
10.12
103.000
11.24
115.000
148
13.49
137.000
173
15.74
160.700
17.99
183.700
20.24
206.650
kW
21.4
26.6
31.9
34.6
40
45.3
53.2
58.6
64.4
66.3
72
80.1
88.3
93
106.9
119.7
133.7
159.3
186.9
213.6
240.3
9
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