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B
LB1122 Minor 1.1/1.1 R
NOZZLE
GPH
SPRY
0.40 80°S
0.50 80°S
0.60 80°S
0.65 80°S
0.75 80°S
NOZZLE : DANFOSS H÷S 80°÷60°; DELAVAN W 60°; STEINEN S 60°
SUNTEC
AS 47 K
3
6
3
1
2
- 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
1
1
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.
ADJUSTMENT DATA
PUMP
OUTPUT
normal
pre-heater
kg/h
kg/h
BAR
12
1,7
12
2
1,82
12
2,4
1,92
12
2,7
2,4
12
3,1
2,7
PRIMING AND ADJUSTMENT OF OIL PUMP
DANFOSS
BFP 21 R3
7
4
5
5
P
-
+
3
2
Two-pipe system
1 - HOSE
2 - OIL FILTER
3 - OIL COCK
2
3
NOZZLE CLEANING AND REPLACEMENT
FIRING HEAD SETTING
normal
Pos.
-
0
1
2
3
4
6
P
3
4
V
VERIFY:
- That piping system is perfectly sealed.
- That the use of hoses is avoided whenever is
1
possible (use copper pipes preferably).
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.
pag.8
AIR DAMPER ADJUSTMENT
pre-heater
normal
Pos.
Pos.
-
1,5
0
3,5
1
5
2
7,5
4
9
1 - INLET
2 - RETURN
3 - BLEED AND PRESSURE
GAUGE PORT
4 - VACUUM GAUGE PORT
5 - PRESSURE ADJUSTMENT
6 - TO NOZZLE
7 - CARTRIDGE FILTER
pre-heater
Pos.
-
3
4,5
7
8
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