Pump; 5.12.1 Technical Data; 5.12.2 Pump Priming - Riello RL 190/M Installation, Use And Maintenance Instructions

5.12

Pump

In case of use with gas oil containing up to 10%
Bio blend, it will be essential to use flexible oil
lines suitable for bio fuel use.
Please contact Riello for further information.
WARNING
1 Suction
2 Return
3 Pressure gauge connection
4 Vacuum meter connection
5 Pressure adjustment screw
6 Screw for by-pass

5.12.1 Technical data

Suntec TA3C
Min. delivery rate at 12 bar pressure
Delivery pressure range
Max. suction depression
Viscosity range
Max. gas oil temperature
Max. suction and return pressure
Pressure calibration in the factory
Filter mesh width
Installation
D1979
Fig. 20
G 1/2"
G 1/2"
G 1/8"
G 1/8"
kg/h 665
bar 7 - 40
bar 0.45
2
4 - 800
mm /s (cSt)
°C 140
bar 1.5
bar 30
mm 0.17
Tab. H
19

5.12.2 Pump priming

Before starting the burner, make sure that the
tank return line is not clogged.
Obstructions in the line could cause the seal-
WARNING
ing 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 screw 3)
(Fig. 20) 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 with switch 1)
(Fig. 21) in the "MAN" position.
As soon as the burner starts, check the direction of rotation
of the fan blade, by looking through the flame inspection win-
dow 24)(Fig. 6 at page 12).
– The pump can be considered primed when the light oil starts
coming out of the screw 3).
Stop the burner: switch 1)(Fig. 21) set to "OFF" and tighten
the screw 3).
D791
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, as often as required.
After 5 or 6 starting operations allow 2 or 3 minutes for the trans-
former to cool.
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
WARNING
through the opening on the vacuum meter prior to
starting; otherwise, the pump will seize.
Whenever the length of the suction piping ex-
ceeds 20-30 meters, the supply line must be filled
using a separate pump.
GB
1 2
Fig. 21
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