Minimum Oil Pressure Switch; Pump Priming; Pump - Riello RL 70 Manuel D'entretien

PUMP SUNTEC E6

PUMP

A kg/h
B bar
C bar
D cSt
E °C
F bar
G bar
H mm
(A)
D1226
E6
170
10 - 20
0,45
1,8 - 200
90
1,5
12
0,170
PUMP (A)
1 - Suction
2 - Return
3 - Pressure gauge attachment
4 - Vacuum meter attachment
5 - Pressure adjustment screw
6 - Screw for by-pass
A - Min. delivery rate at 12 bar pressure
B - Delivery pressure range
C - Max. suction depression
D - Viscosity range
E - Light oil max. temperature
F - Max. suction and return pressure
G - Pressure calibration in the factory
H - Filter mesh width

MINIMUM OIL PRESSURE SWITCH

The oil pressure switch 26)(A) page 3 is factory
set to 8 bar. If the oil pressure does not reach
this value, the pressure switch does not allow
the opening of the oil valve.

PUMP PRIMING

- Before starting the burner, make sure that
the tank return line is not clogged. Ob-
structions 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).
- In order for self-priming to take place, one of
thescrews 3)(A) of the pump must be loos-
ened in order to bleed off the air contained in
the suction line.
- Start the burner by closing the control devices
and with switch 1)(C)p.11 in the "ON" position.
The pump must rotate in the direction of the
arrow marked on the cover.
- The pump can be considered to be primed
when the light oil starts coming out of the
screw 3). Stop the burner: switch 1)(C)p.11 set
to "OFF" and tighten the screw 3).
The time required for this operation depends
upon the diameter and length of the suction tub-
ing. If the pump fails to prime at the first starting
of the burner and the burner locks out, wait ap-
prox. 15 seconds, reset the burner, and then re-
peat the starting operation as often as required.
After 5 or 6 starting operations allow 2 or 3 min-
utes for the transformer to cool.
Do not illuminate the photocell or the burner will
lock out; the burner should lock out anyway
about 10 seconds after it starts.
Important:The a.m. operation is possible be-
cause 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
exceeds 20-30 meters, the supply line must be
filled using a separate pump.
10
G 1/4"
G 1/4"
G 1/8"
G 1/8"