Pump; Pump Priming - Riello 3470210 Installation, Use And Maintenance Instructions

RL 34 MZ
SUNTEC AN 57 C
RL 44 MZ
SUNTEC AN 67 C
D481

PUMP

AN 57 C
A kg/h
B bar 7 - 14
C bar
D cSt 2 - 75
E °C
F bar
G bar
H mm 0.150
(A)
AN 67 C
45 67
10 - 20
0.45 0.45
2 - 75
60 60
2 2
12 12
0.150
PUMP (A)
1 - Suction line
2 - Return line
3 - Gauge connection
4 - Vacuometer connection G 1/8"
5 - Pressure adjustment screw
A - Min. delivery rate at 12 bar pressure
B - Delivery pressure range
C - Max. suction depression
D - Viscosity range
E - Light oil max. temperature
F - Max. suction and return pressure
G - Pressure calibration in the factory
H - Filter mesh width

PUMP PRIMING

- Before starting the burner, make sure that
the tank return line is not clogged. Obstruc-
tions in the line could cause the sealing
organ located on the pump shaft to break.
(The pump leaves the factory with the by-pass
closed).
- In order for self-priming to take place, one of
the screws 3)(A) of the pump must be loos-
ened in order to bleed off the air contained in
the suction line.
- Start the burner by closing the control devices
and with switch 1)(B)p.10 in the "ON" position.
The pump must rotate in the direction of the
arrow marked on the cover.
- The pump can be considered to be primed
when the light oil starts coming out of the
screw 3). Stop the burner: switch 1)(B)p.10 set
to "OFF" and tighten the screw 3).
The time required for this operation depends
upon the diameter and length of the suction tub-
ing. If the pump fails to prime at the first starting
of the burner and the burner locks out, wait
approx. 15 seconds, reset the burner, and then
repeat the starting operation as often as
required. And so on. After 5 or 6 starting opera-
tions allow 2 or 3 minutes for the transformer to
cool.
Do not illuminate the flame sensor or the burner
will lock out; the burner should lock out anyway
about 10 seconds after it starts.
Attention: the a.m. operation is possible
because the pump is already full of fuel when it
leaves the factory. If the pump has been
drained, fill it with fuel through the opening on
the vacuum meter prior to starting; otherwise,
the pump will seize.
Whenever the length of the suction piping
exceeds 20-30 meters, the supply line must be
filled using a separate pump.
10
G 1/4"
G 1/4"
G 1/8"