Riello G20S Guida rapida

20013755 (2) - 06/2011

Installation, use and maintenance instructions

安装 , 使用以及维护说明书

Light oil burners

轻油燃烧器

CODE -编码 MODEL -型号 TYPE -类型

20013636 G20S 482T1

20040295 G20S 482T58

One stage operation

一段火运行

20013755

INFORMATION ABOUT THE INSTRUCTION MANUAL

INTRODUCTION

The instruction manual supplied with the burner:

- is an integral and essential part of the product and must not be sepa-

rated from it; it must therefore be kept carefully for any necessary

consultation and must accompany the burner even if it is transferred

to another owner or user, or to another system. If the manual is lost

or damaged, another copy must be requested from the Technical

Assistance Service of the area;

- is designed for use by qualified personnel;

- offers important indications and instructions relating to the installation

safety, start-up, use and maintenance of the burner.

DELIVERY OF THE SYSTEM AND THE INSTRUCTION MAN-

UAL

When the system is delivered, it is important that:

- The instruction manual is supplied to the user by the system manu-

facturer, with the recommendation to keep it in the room where the

heat generator is to be installed.

- The instruction manual shows:

- the serial number of the burner;

- the address and telephone number of the nearest Assistance

Centre;

- The system supplier carefully informs the user about:

- the use of the system,

- any further tests that may be necessary before the system is

started up,

- maintenance and the need to have the system checked at least

once a year by the manufacturer or another specialised techni-

cian.

To ensure a periodic check, recommends the drawing up

of a Maintenance Contract.

..................................................................................

1 20013755

TECHNICAL DATA

OBurner with CE marking in conformity with EEC Directives: EMC 2004/108/EC, Low Voltage 2006/95/EC.

OThe burner meets protection level of IP 40, EN 60529.

TYPE 482T1 482T58

Thermal power – output 95 – 240 kW – 8 – 20 kg/h

Fuel Light oil, max. viscosity at 20 °C: 6 mm2/s

Electrical supply Single phase, 230V ±10% ~50Hz

Motor Run current 1.5A

2750 rpm – 288 rad/s Run current 2.2A

3250 rpm – 340 rad/s

Capacitor 5 F4F

Ignition transformer Secondary 8 kV – 16 mA

Pump Pressure 7 – 15 bar Pressure 8 – 15 bar

Absorbed electrical power 0.33 kW 0.41 kW

1– Return line

2– Suction line

3– Gauge connection

4– Pump pressure regulator

5– Vacuum gauge connection

6– Hydraulic jack with air-damper

7– Combustion head adjustment screw

8– Lock-out lamp and reset button

9– Flange with insulating gasket

10 – Start delaying device

BURNER EQUIPMENT

Quantity Description

Flexible pipes with nipples

Flange with insulating gasket

Screws and nuts for flange

Maintenance assembly

Screw with two nuts for flange

Grommet

D8077

Fig. 1

20013755 2

WORKING FIELD

OVERALL DIMENSIONS

3.6

2.4

Pressure in the combustion

chamber – mbar

8 10 12 14 Light oil output- kg/h

90 120 240 Thermal power - kW

D5797 150 180 210

1.2

16 18 20

0.3

Flange Burner

350 118 295

160

45°

ø125

298

230

D5283

213

99 99

190

45°

3 20013755

INSTALLATION

BOILER FIXING

Put on the flange (1) the screw and two nuts, (see fig. 2).

Widen, if necessary, the insulating gasket holes (5), (see fig. 3).

Fix the flange (1) to the boiler door (4) using screws (2) and (if necessary) the nuts (3) interposing the

insulating gasket (5), (see fig. 4).

MAINTENANCE POSITION

Access to the combustion head, diffuser disc / electrodes unit and nozzle, (see fig. 5).

Remove the burner out of the boiler, after loosing the fixing nut to the flange.

Hook the burner to the flange (1), by removing the combustion head (6) after loosing the fixing screws (7).

Remove the diffuser disc-holder assembly (9) from the nozzle-holder (8) after loosing its fixing screw.

Screw the nozzle (10).

Fig. 6

Verify that the installed burner is lightly leaned towards the

button.

(See figure 6).

The burner is designed to allow entry of the flexible oil-lines

on either side of the burner.

D5572

D5012

Fig. 2

Fig. 3

E9022

D8058

Fig. 4

110

Fig. 5

D8056 D8057

20013755 4

HYDRAULIC SYSTEMS

Warning: before starting the burner make sure that the return pipe-line is not clogged: any obstruction

would cause the pump seals to break.

The pump vacuum should not exceed a

maximum of 0.4 bar (30 cm Hg).

Beyond this limit gas is released from

the oil.

Oil lines must be completely airtight.

The return line should terminate in

the oil tank at the same level as the

suction line; in this case a non-return

valve is not required.

When the return line arrives over the

fuel level, a non-return valve must be

used.

This solution however is less safe than

previous one, due to the possibility of

leakage of the valve.

PRIMING THE PUMP

Start the burner and wait for the priming.

Should lock-out occur prior to the arrival

of the fuel, await at least 20 seconds

before repeating the operation.

A filter must be installed on the suction fuel line.

meters

Lmeters

I. D.

8 mm I.D.

10 mm

0.5

1.5

100

WARNING

The pump is supplied for use with a two pipe system.

For use on a one pipe system, it is necessary to remove the by-pass

screw (A), (see figure).

meters

Lmeters

I. D.

8 mm I.D.

10 mm

0.5

1.5

3.5

100

H max. 4 m

max. 4 m

min. 0.1 m

D5219

D5220

D5199

H=Difference of level.

L=Max.length of the

suction line.

I.D.=Internal diameter of the

oil pipes.

PRIMING THE PUMP

Loosen the plug of the vacuum gauge (5, fig. 1) and

wait until the fuel flows out.

5 20013755

ELECTRICAL WIRING

S7333

Brown

White (50V)

Blue

Motor

Capacitor

Regulating thermostat

Neutral

Switch with fuse

6A max.

Black

NOTES

– Wires of 1 mm2section.

– The electrical wiring carried out by the installer

must be in compliance with the rules in force in

the Country.

– To remove the control-box from the burner,

loosen screw (A) (see figure) and pull

towards the arrow.

– The photoresistance is fitted directly into the

control-box (underneath the ignition-trans-

former) on a plug-in support.

TESTING

Check the shut-down of the burner by opening the

thermostats.

WARNING

Do not exchange the neutral with the phase.

230V ~50Hz

Limit thermostat

with manual resetting

Remote lock-out lamp

(230V - 0.5A max.), if required

123456789

Blue

Brown

Terminal block of

control-box 530SE*

Valve

RUN OF THE ELECTRICAL CABLE

1- Grommet N- Neutral

2- Cable-clamp L- Phase

3- Terminal block - Burner-earth

ATTENTION

Do not connect burner’s grounding, to fail-

ure indicator terminal . This may result

the destroy of the control box.

D5228

Black

CARRIED-OUT BY THE INSTALLER

CARRIED-OUT IN THE FACTORY

20013755 6

COMBUSTION ADJUSTMENT

In conformity with Efficiency Directive 92/42/EEC the application of the burner on the boiler, adjust-

ment and testing must be carried out observing the instruction manual of the boiler, including verifi-

cation of the CO and CO2concentration in the flue gases, their temperatures and the average

temperature of the water in the boiler.

To suit the required appliance output, fit the nozzle then adjust the pump pressure, the setting of

the combustion head and the air damper opening in accordance with the following schedule.

The values shown in the table are measured on a CEN boiler (as per EN 267).

They refer to 12.5% CO2at sea level and with light oil and room temperature of 20 °C.

RECOMMENDED NOZZLES: Monarch type R - PLP

Delavan type B - W

Steinen type S - SS

Danfoss type S - B

Angle: 60° :In most cases. Particularly suited to avoid flame-detach-

ment during ignition.

For narrow and long combustion-chambers it is advisable

to use full cone nozzles (e.g. 60° B).

TYPE

Nozzle

Pump

pressure Burner

output Comb. head

adjustment Air damper adjustment

Low-flame High-flame

GPH Angle bar kg/h ± 4% Set-point Set-point Set-point

482T1

2.00 60° 12 8.0 1 2.2 2.5

2.25 60° 12 9.0 1.5 2.5 2.9

2.50 60° 12 10.0 2 2.7 3.1

3.00 60° 12 12.0 2.5 3.1 3.7

3.50 60° 12 14.0 3.5 3.5 4.8

4.00 60° 12 16.1 4 4 6

4.50 60° 12 18.1 5 4.5 7

4.50 60° 14 19.5 6 5 8

482T58

2.00 60° 12 8.0 1 1.8 2.0

2.25 60° 12 9.0 1.5 2.1 2.5

2.50 60° 12 10.0 2 2.4 2.8

3.00 60° 12 12.0 2.5 2.8 3.2

3.50 60° 12 14.0 3.5 3.2 4.0

4.00 60° 12 16.1 4 3.6 5.0

4.50 60° 12 18.1 5 4.0 6.0

4.50 60° 14.5 19.9 6 4.5 7.0

7 20013755

COMBUSTION HEAD SETTING:This is done when fitting the nozzle, with the blast tube

removed. It depends on the output of the burner and is

carried out by rotating the regulating rod, till the terminal

plane of the blast tube is level with the set-point, as indi-

cated in the schedule.

Combustion head settings indicated in the schedule are valid for most cases.

The setting of the fan output according to the installation should normally be done only through the air

damper. Should one subsequently want to retouch also the setting of the combustion head, with the

burner running, operate on the rod (1) with a 6 mm spanner (2) as follows:

TURN TO THE RIGHT: (sign +)

In order to increase the volume of air entering the combus-

tion chamber and thus diminishing its pressure.

There is a reduction of CO2and the adhesion of the

flame to the air diffuser disc improves.

(Setting advisable for ignitions at low temperatures).

TURN TO THE LEFT: (sign –)

In order to reduce the volume of air entering the com-

bustion chamber and thus increasing its pressure. The

CO2improves and the adhesion of the flame to the dif-

fuser tends to reduce.

(This setting is not advisable for ignitions at low temper-

atures).

In any case do not bring the combustion head setting

more than one point away from that indicated in the

schedule. One set-point corresponds to 3 turns of the

rod; a hole (3) at its end facilitates counting the number

of turns.

In the sketch on the left, the combustion head

is set for an output of 3.50 GPH at 12 bar,

while the shutter is level with set-point 3.5, as

required by the above schedule.

Blast tube

Regulating rod

Shutter

Terminal plane of the blast tube

D5284

135

2 3

D8068

20013755 8

PUMP-PRESSURE AND AIR-FLOW

The burner, in order to guarantee good smooth starts, irrespective of the type of boiler, is fitted with a

hydraulic device which, independently of the control-box, reduces the fuel- and air-flow.

At ignition, the pressure at the nozzle is 9 bar. After 4 - 6 seconds, it automatically increases to 12 bar.

The air-flow, initially adjusted to the low setting, is, at the change-over of pressure, automatically

brought to the air-flow required for the big flame.

SETTING FOR THE LOW IGNITION-FLAME

Air-damper adjustment

Loosen the screw (1), by approximately one full turn; in this way, the burner remains permanently

on low flame.

Loosen the nut (2), turn the screw (3), in order to set the air-damper (4) in the position required.

Then, lock the nut (2) and tighten the screw (1).

Reducer-adjustment

The pressure-reducer is factory set, at 9 bar.

The pressure-gauge should be mounted, in place of plug (6).

Should it be necessary to re-set or alter such pressure, this can be done, by adjusting screw (5)

(always, after having loosened screw 1 ).

HIGH-FLAME SETTING

Air-damper adjustment

Loosen the nut (7), turn the screw (8), until the air-damper (4) is in the required position.

Then, lock the nut (7).

Pump-adjustment

The pump-pressure is pre-set, during production, at 12 bar.

Should it become necessary to re-set or alter such pressure, this can be done by turning screw (9).

S7336

S7334

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