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5.14
Pump
5.14.1 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
D11321
Key (Fig. 23)
1
Suction line G 3/4" (RLS 1000/E)
1
G 1" 1/2 (RLS 1200/E)
2
Return line
G 1"
3
Vacuometer connection G 1/4"
4
Gauge connectionG 1/4"
5
Pressure adjuster
5.14.2 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 self-priming to take place, the screw 4) on the
pump (Fig. 23) must be loosened to bleed off the air con-
tained 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)(Fig. 23).
Close the burner and undo the screws 4)(Fig. 23).
The time required for this operation depends upon the diameter
and length of the suction tubing.
Installation
RLS 1000/E FGR
VBHRG
1160 kg/h
9 - 40 bar
0.6 bar
6 - 800 cSt
140°C
5 bar
22 bar
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 trans-
former to cool.
Do not illuminate the QRI cell or the burner will lock out; the burn-
er should lock out anyway about 10 seconds after it starts.
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
WARNING
the opening on the vacuometer 4)(Fig. 23) 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.
Fig. 23
25
GB
RLS 1200/E FGR
VBHGRP
1660 kg/h
9 - 40 bar
0.6 bar
6 - 800 cSt
140°C
5 bar
22 bar
Tab. K
20170641
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