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To control the outlet delivery of the nozzle, proceed as follows:
open the burner following the instructions on pag. 17,
connect a pipe to the nozzle, simulate the ignition and
proceed with the weighing at the maximum and minimum
pressures.
If at the maximum delivery of the nozzle (maximum pressure on
the return line) pressure oscillations can be seen on the pressure
gauge 2), slightly reduce the pressure until they disappear.
5.13
Pump
5.13.1 Technical data
Pump
Min. delivery rate at 40 bar pressure
Delivery pressure range
Max. suction depression
Viscosity range
Max. light oil temperature
Max. suction and return pressure
Pressure calibration in the factory
Key (Fig. 21)
1
Suction line
2
Return line
3
Vacuometer connection
4
Gauge connection
5
Pressure adjuster
20148180
Installation
D11321
Fig. 21
G 3/4" (RLS 1000/M)
G 1" 1/2 (RLS 1200/M)
G 1"
G 1/4"
G 1/4"
NOTE:
The burner is factory calibrated with maximum pressure on the
return line of approximately 19.5 bar and delivery pressure of
approximately 22 bar.
RLS 1000/M MX
VBHRG
1160 kg/h
9 - 40 bar
0.6 bar
6 - 800 cSt
140 °C
5 bar
22 bar
5.13.2 Priming pump
Before starting the burner, make sure that the tank
return line is not clogged.
Obstructions in the line could cause the sealing
WARNING
organ located on the pump shaft to break.
In order for the pump (Fig. 21) to be able to self-prime, the
screw 4) must be loosened to purge the air in the suction
line.
Start the burner by closing the remote controls. As soon as
the burner starts, check the direction of rotation of the fan
blade.
The pump can be considered to be primed when the light oil
starts coming out of the screw 4).
Close the burner and undo the screws 4).
The time required for this operation depends upon the diameter
and length of the suction tubing.
If the pump fails to prime at first start-up and the burner locks out,
wait approx. 15 seconds, reset the burner, and then repeat the
start-up operation. And so on.
After 5 or 6 starting operations allow 2 or 3 minutes for the
transformer to cool.
Do not light the UV cell in order to prevent the burner lockout; the
burner locks out in any case about ten second after its start.
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
4)(Fig. 21) 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.
22
GB
RLS 1200/M MX
VBHGRP
1660 kg/h
9 - 40 bar
0.6 bar
6 - 800 cSt
140 °C
5 bar
22 bar
the
opening
on
the
Tab. L
vacuometer
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