Riello 663 M - Pump; Technical Data; Priming Pump

21
20167399
GB
Hydraulic system
6.3 Pump
Key (Fig. 22)
1 Suction line G 1/4"
2 Return line G 1/4”
3 Pressure gauge connectionG 1/8"
4 Vacuometer connectionG 1/8”
5 Pressure adjustment
6.3.1 Technical data
Tab. J
6.3.2 Priming pump
– In order for self-priming to take place, one of the screws 3)
(Fig. 22) of the pump must be loosened in order to bleed off
the air contained in the suction line.
– Start the burner by closing the control devices and with the
switch 1)(Fig. 23) in "MAN” position. As soon as burner
starts, check the fan rotation direction through the flame
inspection window 19).
– The pump can be considered to be primed when the light oil
starts coming out of the screw 3).
– Stop the burner: set switch 1)(Fig. 23) to "OFF" and tighten
the screw 3).
The time required for this operation depends upon the diameter
and length of the suction tubing.
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 operations allow 2 or 3 minutes
for the transformer to cool.
BURNER RL 28/M
RL 38/M
RL 50/M
PUMP MODEL
Suntec
AL 75C
Suntec
AL 95C
Min. delivery rate at 20 bar
pressure
kg/h 74 99
Delivery pressure range bar 10 - 20 10 - 20
Max. suction depression bar 0.45 0.45
Viscosity range mm
2
/s (cSt) 2 - 12 2 - 12
Max. light oil temperature °C 60 60
Max. suction and return
pressure
bar 2 2
Pressure calibration in the
factory
bar 20 20
Filter mesh width mm 0.15 0.15
Fig. 22
D1239
ATTENTION
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).
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.
Fig. 23
12
D791