19
20035784
Installation
5.13 Pump
Key (Fig. 19)
1 Suction G 1/2”
2 Return G 1/2”
3 Pressure gauge connection G 1/8”
4 Vacuum meter connection G 1/8”
5 Pressure adjustment screw
6 Screw for by-pass
7 Pressure gauge attachment G 1/4”
5.13.1 Technical data
Tab. J
Tab. K
Tab. L
5.13.2 Pump priming
– For self-priming to take place, the screw 3)(Fig. 19) of the
pump must be loosened in order to bleed off the air contained
in the suction line.
– The pump can be considered to be primed when the gas oil
starts coming out of 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. After 5 or
6 starting operations allow 2 or 3 minutes for the transformer to
cool.
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.
D1251
Fig. 19
P 140-200 T/G - Suntec E7
P 300 T/G - Suntec TA2
P 450 T/G - Suntec TA3
D1979
Suntec E7
Min. delivery rate at 12 bar pressure kg/h 230
Delivery pressure range bar 10 - 21
Max. suction depression bar 0.45
Viscosity range
mm
2
/s (cSt)
2.8 - 200
Max. gas oil temperature °C 90
Max. suction and return pressure bar 1.5
Pressure calibration in the factory bar 12
Filter mesh width mm 0.17
Suntec TA2
Min. delivery rate at 12 bar pressure kg/h 380
Delivery pressure range bar 7 - 40
Max. suction depression bar 0.45
Viscosity range
mm
2
/s (cSt)
4 - 800
Max. gas oil temperature °C 140
Max. suction and return pressure bar 5
Pressure calibration in the factory bar 30
Suntec TA3
Min. delivery rate at 12 bar pressure kg/h 665
Delivery pressure range bar 7 - 40
Max. suction depression bar 0.45
Viscosity range
mm
2
/s (cSt)
4 - 800
Max. gas oil temperature °C 140
Max. suction and return pressure bar 1.5
Pressure calibration in the factory bar 30
Filter mesh width mm 0.17
Before starting the burner, make sure that the
tank return line is not clogged.
Obstructions in the line could cause the seal-
ing organ located on the pump shaft to break.
(The pump leaves the factory with the by-pass
closed).
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 ex-
ceeds 20-30 meters, the supply line must be filled
using a separate pump.
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