2
TECHNICAL DATA
(1) Reference conditions: Ambient temperature 20°C - Barometric pressure 1000 mbar - Altitude 100 m a.s.l.
(2) Sound pressure measured in manufacturers combustion laboratory, with burner operating on test boiler and at maximum rated output.
VARIANTS
ACCESSORIES (optional):
• STATUS (see page 15): code 3010321
• DEGASSING UNIT
It may occur that a certain amount of air is contained in the light oil sucked up by the pump. This air may originate from the light oil itself as a
consequence of depressurization or air leaking past imperfect seals.
In double-pipe systems, the air returns to the tank from the return pipe; in single-pipe systems, the air remains in circulation causing pressure var-
iations in the pump and burner malfunctions.
For this reason, we advise installing a degassing unit near the burner in single-pipe installations.
Degassing units are provided in two versions:
CODE 3010054 without filter
CODE 3010055 with filter
Degassing unit characteristics
• Burner delivery : 80 kg/h max
• Light oil pressure : 0,7 bar max
• Ambient temperature : 40 °C max
• Light oil temperature : 40 °C max
• Attachment connectors : 1/4 inch
MODEL RL 28/1
TYPE 657 T80
OUTPUT
(1)
DELIVERY
(1)
kW 178 - 332
153 - 286
15 - 28
Mcal/h
kg/h
FUEL LIGHT OIL
- Net calorific value kWh/kg
Mcal/kg
11.8
10.2 (10200 kcal/kg)
- Density
kg/dm
3
0.82 - 0.85
- Viscosity at 20 °C
mm
2
/s max
6 (1.5 °E - 6 cSt)
OPERATION • Intermittent (min. 1 stop in 24 hours).
• Single-stage (all - nothing).
NOZZLES numero 2
STANDARD APPLICATIONS Boilers: water, steam, diathermic oil
AMBIENT TEMPERATURE °C 0 - 40
COMBUSTION AIR TEMPERATURE °C max 60
ELECTRICAL SUPPLY V
Hz
220-230 ~ +/-10%
60 - single-phase
ELECTRIC MOTOR rpm
W
V
A
2800
300
220 - 240
2,4
MOTOR CAPACITOR µF/V 12.5/450
IGNITION TRASFORMER V1 - V2
I1 - I2
230 V - 2 x 5 kV
1.9 A - 30 mA
PUMP delivery (at 20 bar)
pressure range
fuel temperature
kg/h
bar
° C max
45
10 - 18
60
ELECTRICAL POWER CONSUMPTION W max 370
ELECTRICAL PROTECTION IP 44
IN CONFORMITY WITH EEC DIRECTIVES 89/336 - 73/23 - 92/42 - 89/392
NOISE LEVELS
(2)
dBA 70.0
Model Code
Electrical
supply
Blast tube
lenght mm
RL 28/1
3472080
3472081
single-phase
single-phase
216
351
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