10
420010291600
Max 1 - 4 Low NOx
EN
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 prepur-
ging, 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
SUNTEC
SUNTEC
P
V
SUNTEC
AS 47 A
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
2
1
4
5
6
P
-
+
V
P
3
7
DANFOSS
BFP 21 R3
1 - HOSE
2 - OIL FILTER
3 - OIL COCK
3
2
1
1
3
2
1
1
ADJUSTMENT DATA
NOZZLE : DANFOSS H÷S 60°; DELAVAN A÷XA 60°
NOZZLE
PUMP
OUTPUT
FIRING HEAD SETTING AIR DAMPER ADJUSTMENT
gph
spry
bar
kg/h
Pos.
Pos.
0.50
60°S
12
1,75
0.55
60°S
12
1,84
0.60
60°S
12
1,92
0.65
60°S
12
2,4
0.75
60°S
12
2,8
0.50
60°S
12
1,75
0.55
60°S
12
1,84
0.60
60°S
12
1,92
0.65
60°S
12
2,4
0.75
60°S
12
2,8
0.85
60°S
12
3,1
1.00
60°S
12
3,8
MAX 1
MAX 4
