Riello Burners PRESS 45N Quick start guide

2915894 (2) - 01/2009
Installation, use and maintenance instructions
Heavy oil burner
CODE MODEL TYPE
3434585 PRESS 45N 615 T80
3434586 PRESS 45N 615 T80

5894 1
1- Suction line
2- Return line
3- Pump pressure adjustment screw
4- Manometer plug (G 1/8)
5- Vacuometer plug (G 3/8)
6- Air shutter opening motor
7- Control box reset push-button and lock-out lamp
8- Reset push-button of the motor overload relay
9- Regulating bush for combustion head
10 - Sheathed filter for the thermometer
11 - Valves group
12 - Manometer with protection valve 16 - Wiring terminal board
13 - Adjustment thermostat 17 - Fair leads
14 - Pre-heater relay 18 - Back-pressure valve
15 - Ignition transformer
DIMENSIONS
Thermal power - Output 114 / 205 - 513 kW - 10 / 18 - 45 kg/h
Operation Two stages
Fuel Oil with max. viscosity at 50 °C: 150 mm2/s (20 °E)
Electrical supply Three phase 220V +10% -10% ~ 60Hz without neutral
380V +10% -10% ~ 60Hz with neutral
Motor 2.4 A / 220V - 1.5 A / 380V
Ignition transformer Primary: 2 A - Secondary: 2x 6.5 kV / 35 mA
Heaters 2.8 kW
Absorbed electrical power 3.7 kW
Pump 65 Kg/h at 20 bar
Fig. 1
*For extended - head version
Quantity Accessories
2 Flexibles tubes
2 Nipples
2Seals
4Screws
1 Gasket for flange
2 * Extensions for bars

5894 2
COMBUSTION CHAMBER PRESSURE - MAXIMUM OUTPUT
(two nozzles in operation)
When the burner operates with only one nozzle, the pressurization conditions are improved and no problems arise.
Minimal fuel capacity with only one nozzle: 10 kg/h - 114 kW
Note for the extend. combustion head version
Apply the extensions provided as accessories for the burner withdrawing.
Front plate detail for
boiler mounting

5894 3
FUEL OIL GRAVITY FEED SYSTEMS
GRAVITY SYSTEM (fuel oil with viscosity max. 7°E at 50°C)
Pump priming: loose the tap of the
vacuometer plug 5) (fig. 1) and wait
for the fuel flow.
H: Difference in the pipes height.
L: Length of the suction pipe.
SUCTION SYSTEM (fuel oil with viscosity max. 7°E at 50°C)
Not advised, to be used only in case of previously existing system.
Never overcome the max. de-
pression of 0.5 bar (38 cm Hg).
With higher values the fuel em-
anates gas.
The pipes shall be perfectly
sealed. When the tank is
placed below of the burner lev-
el, the return pipe should reach
the same level of the suction
pipe.
In this case the foot valve is not
required.
RING SYSTEM (for heavy oil with viscosity up to 20°E/50°C)
1- Tank (properly heated for heavy oil) 5- Forwarding pump
2- Filter (with resistance for oil > 7°E/50°C) 6- Manometer
3- Burner 7- Burner pump
4- Couple of cocks (excluding the burner) 8- Pressure adjuster
Notice: All the pipes have to be properly seized, sealed and heated (elect. resistance or hot steam or water) to
let the fuel flow.
Warning: Before to put the burner in operation verify that no obstruction exists into the pipes, any obstruction may
damage the sealing of the pump.
H
meters
L meters
ø 3/4”
gas ø 1” gas
0510
0.5 9 15
11120
1.5 14 25
21730
H
meters
L meters
ø 1”
gas ø11/4” gas
02445
0.5 21 40
11835
1.5 15 30
21225
2.5 9 20
3615