Riello 468 M1 Quick start guide

Montage und Bedienungs Anleitung
Manuel d’entretien
Installation, use and maintenance instructions
Istruzioni per installazione, uso e manutenzione
2915837 (1)
Bruciatore di nafta
Heizölbrenner
Heavy oil burner
Brûleur à fioul lourd
CODICE
CODE
MODELLO - MODELL
MODELE - MODEL
TIPO - TYP
TYPE
3438958 PRESS 300 T/N 468 M1
3438959 PRESS 300 T/N 468 M1
3438960 PRESS 300 T/N 468 M1
3438961 PRESS 300 T/N 468 M1
3438962 PRESS 300 T/N 468 M1
3438963 PRESS 300 T/N 468 M1
I
D
GB
F

5837 1GB
INDEX
1. BURNER DESCRIPTION
One, two, third stage heavy oil burner.
1.1 BURNER EQUIPMENT
Flexible tubes . . . . . . . . . . . . . . . . . . . . . . No. 2 Nipples . . . . . . . . . . . . . . . . . . . . . . . . . No. 2
Cable clamps . . . . . . . . . . . . . . . . . . . . . . No. 5 Screws . . . . . . . . . . . . . . . . . . . . . . . . . No. 4
Gasket for flange. . . . . . . . . . . . . . . . . . . . No. 1 Nozzles . . . . . . . . . . . . . . . . . . . . . . . . No. 3
Extensions (only long head). . . . . . . . . . . . No. 2
1. BURNER DESCRIPTION. . . . . . . . . . . . . . 1
1.1 Burner equipment . . . . . . . . . . . . . . . . . . . 1
2. TECHNICAL DATA . . . . . . . . . . . . . . . . . . 2
2.1 Technical data . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Overall dimensions . . . . . . . . . . . . . . . . . . 3
2.3 Working field . . . . . . . . . . . . . . . . . . . . . . . 3
3. INSTALLATION . . . . . . . . . . . . . . . . . . . . . 4
3.1 Heavy oil supply line . . . . . . . . . . . . . . . . . . 4
3.2 Electrical system . . . . . . . . . . . . . . . . . . . . 5
3.3 Electrical connections . . . . . . . . . . . . . . . . 8
4. WORKING . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Choice of nozzles . . . . . . . . . . . . . . . . . . 10
4.2 Pump pressure . . . . . . . . . . . . . . . . . . . . 10
4.3 Combustion head setting . . . . . . . . . . . . . . .11
4.4 Air shutters adjustments . . . . . . . . . . . . . . . .11
4.5 Spray temperature adjustment . . . . . . . . . . 12
4.6 Burner start-up cycle . . . . . . . . . . . . . . . . . 13
4.7 Three stage operation . . . . . . . . . . . . . . . . 13
4.8 Burner start-up cycle diagnostics . . . . . . . . 14
4.9 Operating fault diagnostics . . . . . . . . . . . . . 14
■The burner meets protection level of IP 40, EN 60529.
■Burner with CE marking in conformity with EEC directives: EMC 89/336/EEC, Low Voltage 73/23/EEC
and Machines 98/37/EEC.
1 - Suction line
2 - Return line
3 - Air shutter opening motor
4- Pump pressure adjustment screw
5 - Manometer plug (G1/4)
6 - Vacuometer plug (G1/4)
7 - Reset push-button of the motor overload relay
8- Electric board
9 - Cable clamps
10 - Control box reset push-button and lock-out lamp
11 - Adjustment thermostat
12 - Regulating bush for combustion head
13 - Wiring terminal board
14 - Ignition transformer
15 -Filter
16 - Valves group
17 - Manometer
18 -Lamp
19 - Commutator
20 - Low limit thermostat
21 - High limit thermostat
22 -Timer
Fig. 1

5837 2GB
2. TECHNICAL DATA
2.1 TECHNICAL DATA
OPERATION AND EFFICIENCY OF THE BURNER
TYPE 468 M1
Thermal power - Output 626 - 3420 kW – 55 - 300 kg/h (see tables below)
Fuel Oil with max. viscosity at 50° C 50 mm2/s (7° E)
for oil up to 500 mm2/s (65° E) with kit
Electrical supply Three-phase, 230V ±10% ~50Hz without neutral
400V ±10% ~50Hz with neutral
Motor (with starter ) 30 A / 230V – 17.5 A / 400V
Ignition transformer Primary 2 A – Secondary 2 x 6.5 kV – 35 mA
Heaters 19.6 kW
Absorbed electrical power 30 kW
Pump 470 kg/h at 25 bar
1st STAGE
Thermal power - Output
Minimum Maximum
kW kg/h kW kg/h
1st nozzle: ignition phase 570 50 1140 100
1st+2nd nozzle: intermediate phase 1140 100 2280 200
1st+2nd+3rd nozzle: operation phase 1710 150 3420 300
2nd STAGE
Thermal power - Output
Minimum Maximum
kW kg/h kW kg/h
1st nozzle: ignition phase 570 50 1140 100
1st+2nd nozzle: 1st stage of operation 1140 100 2280 200
1st+2nd+3rd nozzle: 2nd stage of operation 1710 150 3420 300
3rd STAGE
Thermal power - Output
Minimum Maximum
kW kg/h kW kg/h
1st nozzle: 1st stage of operation 570 50 1140 100
1st+2nd nozzle: 2nd stage of operation 1140 100 2280 200
1st+2nd+3rd nozzle: 3rd stage of operation 1710 150 3420 300

5837 3GB
2.2 OVERALL DIMENSIONS
2.3 WORKING FIELD (3 nozzles in operation)
Burner
COMBUSTION HEAD PROJECTION
For the combustion head projection carefully follow
the boiler manufacturer indications.
A proper protection with refractory material on the
combustion head projecting into the combustion
chamber shall be made, when boilers with frontal
smoke box are used.
Boiler front plate drilling
D2776
1000 246
376
506
858
447
496
ø 295
*
260
M18
260 300
D2777
It is possible with a spacer, upon request.
*
128
Thermal power
Pressure in combustion
chamber – mbar
When the burner operates with only one or two nozzles, the pressurization conditions are improved and no
problems arise.
limit
safety
Working field:
kg/h
kW
D2765

5837 4GB
3. INSTALLATION
3.1 HEAVY OIL SUPPLY LINE
RING SUPPLY LINE
For heavy oil with viscosity up to 50°E/50°C.
WARNING
- The oil could easily flow through the pipes if those are properly seized, protected and heated (by electricity,
steam or hot water).
- The forwarding pump capacity should be all the least double of that of the burner pump.
If several burners are supplied through the same ring supply line, the forwarding pump should have a capacity
of approx. 30% more than the sum of the single burners outputs.
- For starting-up: after excluding the burner by the shutter valves (5) let the oil flow into the supply ring up to
reach the required circulation; after than open the valves and supply normally the burner.
GRAVITY SUPPLY LINE
Only for oil with max. viscosity up to 7°E/50°C.
Attention:
before placing the burner in operation, ensure that the return line is open. Any obstruction may damage the pump
seal.
1- Tank (heated for heavy oil) 6- Burner (provided with kit for heavy oil code no. 3000721)
2- Filter (with resistance for oil > 7°E/50°C) 7- Pressure adjuster
3- Forwarding pump 8- Filter (with resistance for oil > 7°E/50°C)
4- Control manometer 9- Burner pump
5- Shutter valves (in couple)
excluding the burner
D2734
H
meters
L meters
ø 1” ø 1 1/4”
0210
0.5 3 11
1412
1.5 5 13
2614
Pump priming:
loose the tap of the vacuometer plug (6,
fig. 1) and wait for the oil flow.
H: Difference in the pipes height
L: Total length of the suction tube
D2735
H
max. 10m

5837 5GB
3.2 ELECTRICAL SYSTEM
CMV Fan motor contact maker
CR Resistor contact maker
CO Commutator
FR Photoresistence
L1 Lamps for 1st stage
L2 Lamps for 2nd stage
L3 Lamps for 3rd stage
MB Burner terminal strip
MV Fan motor
RMO Control box
RT Overload
SPre-heater tank
SM Air-damper actuator
SO Probe PT100
TA Ignition transformer
TB Burner earth
TE Electronic thermostat
Tm Minimal thermostat
TM Maximal thermostat
TP Timer
V1 Oil valves for 1st stage
V2 Oil valves for 2nd stage
V3 Oil valves for 3rd stage
VS Safety valve
D2737
D2738
PRE-HEATER CONNECTION
THERMOSTAT
COMMUTATOR
Brown Blue Black
PROBE TO ELECTRONIC
D2618
DIRECT START-UP
(carried out by the factory)

5837 6GB
CR Resistor contact maker
CO Commutator
FR Photoresistence
L1 Lamps for 1st stage
L2 Lamps for 2nd stage
L3 Lamps for 3rd stage
MB Burner terminal strip
MV Fan motor
RMO Control box
SPre-heater tank
SM Air-damper actuator
SO Probe PT100
TA Ignition transformer
TB Burner earth
TE Electronic thermostat
Tm Minimal thermostat
TM Maximal thermostat
TP Timer
V1 Oil valves for 1st stage
V2 Oil valves for 2nd stage
V3 Oil valves for 3rd stage
VS Safety valve
D2737
D2738
PRE-HEATER CONNECTION
THERMOSTAT
COMMUTATOR
Brown Blue Black
PROBE TO ELECTRONIC
STAR-TRIANGLE START-UP
(carried out by the factory)
D2624

5837 7GB
MA Starter terminal strip
SDisconnecting switch with interlock
FPower line fuses
F1 Control devices fuse
K1 Line contact maker
K2 Star contact maker
K3 Delta contact maker
K4 Timer relay for switching from star to delta
(factory calibration at 10s)
K2A Auxiliary contact block on k2
K3A Auxiliary contact block on k3
RT Thermal relay to be set at 9A for 400V
or at 18A for 230V
D2767
D2768
STAR-TRIANGLE STARTER

5837 8GB
3.3 ELECTRICAL CONNECTIONS TO THE BURNER TERMINAL STRIP
NOTE:
®Check the lock-out by darkening the photo-cell after removal of the cover.
ATTENTION HIGH VOLTAGE.
®In case of supply 230V without neutral, connect the motor and the pre-heater thank through delta (the “star”
connection is the original one, made for 400V).
DIRECT START-UP
(to be carried out by the installer)
D2619
HRemote lock-out signal
IN Optional switch on-off burner
MB Burner terminal strip
PS Reset push - button
SA High temperature oil alarm
TL Limit control device system
TS Safety control device system
T2 Load control system for 2nd stage
T3 Load control system for 3rd stage
230V 400V
A Ampere T63 T50
B Ampere T63 T50
C mm264
D mm210 6

5837 9GB
NOTE:
®Check the lock-out by darkening the photo-cell after removal of the cover.
ATTENTION HIGH VOLTAGE.
®In case of supply 230V without neutral, connect the pre-heater thank through delta (the “star” connection is
the original one, made for 400V).
STAR-TIRANGLE START-UP
(to be carried out by the installer)
D2625
230V 400V
A Ampere T63 T50
B mm210 6
C mm264
D mm242,5
HRemote lock-out signal
H1 Motor trip signal
IN Optional switch on-off burne
MA Start-up terminal strip
MB Burner terminal strip
PS Reset push - button
SA High temperature oil alarm
TL Limit control device system
TS Safety control device system
T2 Load control system for 2nd stage
T3 Load control system for 3rd stage