Pump Priming; Pump - Riello Burners RL 28 Instrucciones De Instalación, Funcionamiento Y Mantenimiento

RL 28:
SUNTEC AN 57 C
AN 57 C

PUMP

A kg/h
B bar
C bar
D cSt
E °C
F bar
G bar
H mm
(A)
RL 38: SUNTEC AL 65 C
RL 50: SUNTEC AL 75 C
AL 65 C
45 67
10 - 18 4 - 18
0,45 0,45
2 - 75 2 - 12
60 60
2 2
12 12
0,150 0,150
D481
AL 75 C
88
4 - 18
0,45
2 - 12
60
2
12
0,150
10
PUMP (A)
1 - Suction
2 - Return
3 - Pressure gauge attachment
4 - Vacuum meter attachment
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.
Obstructions 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.11 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.11 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 ap-
prox. 15 seconds, reset the burner, and then re-
peat the starting operation as often as required.
After 5 or 6 starting operations allow 2 or 3 min-
utes for the transformer to cool.
Do not illuminate the photocell or the burner will
lock out; the burner should lock out anyway
about 10 seconds after it starts.
Important: 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.
G 1/4"
G 1/4"
G 1/8"
G 1/8"