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

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

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

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

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

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