C.I.B. UNIGAS
- M039136CC
16
Tab. 2 - Choice of the oil nozzle - High-low flame burners
Before carrying out the adjustment it is necessary to start up the fuel pump, proceeding as follows:
1
remove the burner cover;
2
remove the
B
coil connector on the pump (Fig. 17) to avoid light oil unexpectedly getting into the combustion chamber;
3
start the burner up by means of the control panel switch (switch it to
on
) and by means of the thermostat/pressure switches series;
4
when the EVG lamp turns to on (see chapter page 19) remove the phtoresistor
FR
(Fig. 15) from its slot and light it up;
5
bleed the air from the pressure gauge port
M
, slightly loosing its cap, without removing it (see Fig. 17);
6
turn the burner off;
7
replace the photoresistor
FR
(Fig. 18) into its slot;
8
reconnect the
B
coil connector on the pump (Fig. 17);
9
light the burner; if the burner locks, press the unlock pushbutton, placed on the upper side of the burner and repeat the steps
above.
NOTE:
The oil flow rate depends on the choosen nozzle. The air rate can be adjusted by means of the air damper actuator cams (see
picture below).
10 The cam that enables the second stage solenoid valve to open (EVG2 valve) must be set between the other two cams;
11 drive the burner to
high flame
by means of the thermostat
TAB
(if
TAB
is not present, insert a bridge between T6 and T8 contacts
on the related connector - see page 9)
12 adjust the high flame air flow rate acting on the related cam, in order to get the right combustion values.
13 drive the burner to
low flame
by means of the thermostat
TAB
(or remove the bridge between T6 and T8 contacts on the related
connector (see page 9)
14 adjust the low flame air flow rate acting on the related cam, in order to get the right combustion values.
15 Replace the actuator and burner covers.
Refer to the next table for cams functions.
NOZZLE
PUMP PRESSURE bar
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
GPH
kg/h
0.60
2.04
2.16
2.28
2.39
2.50
2.60
2.70
2.79
2.88
2.97
3.06
3.14
3.22
3.30
3.38
3.46
3.53
3.61
0.65
2.21
2.34
2.47
2.59
2.71
2.82
2.92
3.03
3.12
3.22
3.31
3.41
3.49
3.58
3.66
3.75
3.83
3.91
0.75
2.55
2.70
2.85
2.99
3.12
3.25
3.37
3.49
3.61
3.72
3.82
3.93
4.03
4.13
4.23
4.32
4.42
4.51
0.85
2.89
3.06
3.23
3.39
3.54
3.68
3.82
3.96
4.09
4.21
4.33
4.45
4.57
4.68
4.79
4.90
5.00
5.11
1.00
3.40
3.60
3.80
3.98
4.16
4.33
4.49
4.65
4.80
4.95
5.10
5.24
5.37
5.50
5.63
5.76
5.88
6.01
1.25
4.25
4.50
4.75
4.98
5.20
5.41
5.62
5.82
6.01
6.19
6.37
6.54
6.71
6.88
7.04
7.20
7.36
7.51
1.50
5.10
5.41
5.70
5.98
6.24
6.50
6.74
6.98
7.21
7.43
7.64
7.85
8.06
8.26
8.45
8.64
8.83
9.01
Suntec AL
Fig. 17
Fig. 18
Berger STA4.5B037/4 Actuator
M
VR
B
FR
I
II
III
