Riello RLS 300/E - Pump; Technical Data; Priming Pump

20036644
32
GB
Installation
4.13 Pump
4.13.1 Technical data
Tab. I
Key (Fig. 26)
1 Suction 3/4" NPT
2 Return 3/4" NPT
3 Pressure switch attachment G 1/4"
4 Vacuum meter connection G 1/4"
5 Pressure governor
6 By-pass screw
4.13.2 Priming pump
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 of-
ten as required.
After 5 or 6 starting operations allow 2 or 3 minutes for the trans-
former to cool.
Do not illuminate the QRI cell or the burner will lock out; the burner
should lock out anyway about 10 seconds after it starts.
Pump model
TA3
(RLS 300-400/E)
TA4
(RLS 500/E)
TA5
(RLS 650-800/E)
Min. delivery rate at 300 PSI pressure GPH 218 290 403
Delivery pressure range PSI 102 - 580 102 - 435
Max. suction pressure PSI 7.0
Viscosity range cSt 3 - 75
Max. oil temperature °F 302 (150 °C)
Max. return pressure PSI 73.0
Pressure calibration in the factory PSI 300
Fig. 26
2
5
6
1
4
3
5
D12112
WARNING
Before starting the burner, make sure that the tank
return line is not clogged.
Obstructions in the line could cause the sealing or-
gan located on the pump shaft to break.
WARNING
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 4)(Fig. 26) 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.