Riello P 140 T/N, Руководство пользователя

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HYDRAULIC CIRCUIT
The burners are fitted with a valve group (a safety valve fitted
in series with three oil delivery valves), an oil filter and an oil
preheater unit along the oil line from the pump to the nozzle.
A thermostatic control device, on the basis of required heat,
regulates oil delivery valves opening, allowing heavy oil passage
through the valves to the nozzles.
Delivery valves open contemporary to the air damper, controlled
by a servomotor.
The pumping group is fitted with a pump, an oil filter
and a regulating valve, that adjusts atomised pressure.
This value is pre-set at 25 bar in the factory, but it can be
changed (28 bar for higher viscosity oils) by adjusting pressure
regulator fitted on the pump.
The preheater unit is fitted with an electrical heater, a minimum
and a maximum oil temperature switch and an oil temperature
regulator.
T
Vg
MM
P
U1
S
TE
VS
U2
U3
S1
V3 V2
V1
T
S3
S2
TM
Tm
Hydraulic circuit
MM Oil delivery gauge
P Pump with oil filter
S Oil preheater
S 1-2-3 Shutter
T Thermometer
TE Oil temperature regulator
Tm Min. oil temperature switch
TM Max. oil temperature switch
U 1-2-3 Nozzles
V 1-2-3 Delivery oil valves
VG Oil pressure relief valve
VS Safety valve
The 3 stage burner series can burn different heavy oil
type from 50 up to 450 cSt @ 50°C ( up to 60°E @ 50°C).
For different viscosity levels Riello recommends 3
different configurations:
1) Press T/N version for viscosity up to 50 cST ( °E) @ (50°C:
basic version with 2800 rmp oil pump installed
directly on fan motor shaft
2) Press T/N version for viscosity up to 200 cST (25°E) @
50°C: as basic v heavy oil cartridges factory
installed on nozzles, pump and valves group
3) Press T/N ECO version for viscosity up to 450 Cst (60°E)
@ 50°C:
- with separate 1400 rpm low speed pump
- heavy oil cartridges factory installed on nozzles, pump
and valves group
- pipes heating cable factory installed.
VISCOSITY
PRESS T/N ECO
PRESS T/N
Fuel Supply
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