pag.8
B
LB1007
Minor 20.1/30.1
PRIMING AND ADJUSTMENT OF OIL PUMP
1 -
INLET
2 -
RETURN
3 -
BLEED AND PRESSURE
GAUGE PORT
4 -
VACUUM GAUGE PORT
5 -
PRESSURE ADJUSTMENT
6 -
TO NOZZLE
7 - CARTRIDGE FILTER
ADJUSTMENT DATA
NOZZLE : DANFOSS H÷S 80°÷60°; DELAVAN W 60°; STEINEN S 60°
NOZZLE
PUMP
OUTPUT
FIRING HEAD SETTING
AIR DAMPER ADJUSTMENT
PRESSURE SIDE
SUCTION SIDE
GPH
A
ngolo
BAR
kg/h
P
OS
.
Pos.
Pos.
2.50
60°
12
10,4
-
-
MIN
3.00
60°
12
12,5
-
3.50
60°
12
14,9
-
4.00
60°
12
16,7
-
4.50
60°
12
19,1
-
-
MAX
3.50
60°
12
15,1
1
-
MIN
4.00
60°
12
16,7
2
4.50
60°
12
19,1
3 ÷ 4
5.00
60°
12
21,8
4 ÷ 5
5.50
60°
12
23,6
5 ÷ 6
6.00
60°
12
25
6
6.50
60°
12
27,3
7
-
MAX
MINOR 20.1-20.1R
MINOR 30.1-30.1R
VERIFY:
- That piping system is perfectly sealed;
- That the use of hoses is avoided whenever is possible (use copper pipes preferably);
- That depression is not greater than 0,45 bar, to avoid pump’s cavitation;
- That check valve is suitably designed for the duty;
The pump pressure is set at a value of 12 bar during the testing of burners. Before starting the burner, bleed
the air in the pump through the gauge port. Fill the piping with light-oil to facilitate the pump priming.
Start the burner and check the pump feeding pressure. In case the pump priming does not take place during
the first prepurging, with a consequent, subsequent lock-out of the burner, rearm the burner’s lock-out to
restart, by pushing the button on the control box. If, after a successful pump priming, the burner locks-out
after the prepurging, due to a fuel pressure drop in the pump, rearm the burner’s lock-out to restart the bur-
ner. Do never allow the pump working without oil for more than three minutes. Note: before starting the
burner, check that the return pipe is open. An eventual obstruction could damage the pump sealing device.
6
1
2
3
4
5
3
3
SUNTEC AS 47 K
6
5
3
4
2
1
SUNTEC
SUNTEC
3
SUNTEC D57 A
Use only the suitable box wrench provided for this operation to remove the nozzle, taking care to not damage
the electrodes. Fit the new nozzle by the same care.
Note: Always check the position of electrodes after having replaced the nozzle (see illustration). A wrong posi-
tion could cause ignition troubles.
NOZZLE CLEANING AND REPLACEMENT
