17
EN
420010331102
M ulticalor 45 ÷ 140 AB/AB
The pump is adjusted during testing and inspection to
12 bar.
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 burner. Do not allow the pump to work 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.
PRIMING AND ADJUSTMENT OF OIL PUMP
¡ STADIO GASOLIO
VgS
Vg2
Vg1
VG2
VG1
VGS
1
2
3
4
5
6
10
9
8
7
¡ STADIO GASOLIO
VgS
Vg2
Vg1
VG2
VG1
VGS
1
2
3
4
5
6
10
9
8
7
LIGHT-OIL CIRCUIT
A -
HOSE
B -
OIL FILTER
C -
OIL COCK
1 -
PUMP
2 -
SAFETY OIL VALVE
3 -
LOW FLAME OIL VALVE
4 -
HIGH FLAME OIL VALVE
5 -
LOW FLAME NOZZLE
6 -
HIGH FLAME NOZZLE
7 -
GAS PRESSURE SWITCH
8 -
SAFETY GAS VALVE
9 -
LOW FLAME GAS VALVE
10 -
HIGH FLAME GAS VALVE
SUCTION
RETURN
SUCTION
RETURN
A
A
B
C
SUNTEC AN 77
6
5
4
3
3
3
SUNTEC
SUNTEC
P
V
2
1
6
5
3
4
2
1
SUNTEC
SUNTEC
3
SUNTEC D 67 A
SUNTEC
SUNTEC
SUNTEC
SUNTEC
6
5
4
3
3
3
SUNTEC
SUNTEC
P
V
2
1
SUNTEC AS 67 B
SUNTEC AS 67 ...
SUNTEC
SUNTEC
SUNTEC
SUNTEC
6
5
4
3
3
3
SUNTEC
SUNTEC
P
V
2
1
SUNTEC AS 67 B
SUNTEC AJ 6 C-C
1 - INLET
2 - RETURN
3 - BLEED AND PRESSURE GAUGE PORT
4 - VACUUM GAUGE PORT
5 - PRESSURE ADJUSTMENT
6 - TO NOZZLE
