Riello G3MC Quick start guide

20013749 (2) - 10/2009

Installation, use and maintenance instructions

安装 , 使用以及维护说明书

Light oil burner

轻油燃烧器

轻油燃烧器轻油燃烧器

轻油燃烧器

CODE - 编码

编码编码

编码 MODEL - 型号

型号型号

型号 TYPE - 类型

类型类型

类型

20013629 G3MC 448T1

One stage operation

一段火运行

20013749

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 Assist-

ance 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 20013749

TECHNICAL DATA

BURNER DESCRIPTION

One stage light oil burner.

BURNER EQUIPMENT

Flexible pipes with nipples . . . . . . . . . No. 2 Cover . . . . . . . . . . . . . . . . . . . . . . . . No. 1

Screws and nuts for flange. . . . . . . . . No. 4 Insulating gasket . . . . . . . . . . . . . . . . No. 3

Screw with two nuts for flange . . . . . . No. 1

TYPE 448T1

Thermal power – output 19 – 35 kW – 1.6 – 3 kg/h

Fuel Light oil, viscosity 4 – 6 mm2/s at 20 °C (1.5 °E)

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

Motor Run current 0.7A – 2850 rpm – 298 rad/s

Capacitor 4 µF

Ignition transformer Secondary 8 kV – 16 mA

Pump Pressure 7 – 15 bar

Absorbed electrical power 0.115 kW

1– Lock-out lamp and reset button

2– Motor

3– Capacitor

4– Air damper assembly

5– Hydraulic jack

6– Combustion head

7 – Combustion head adjustment screw

8 – Vacuum gauge connection

9 – Return line

10 – Suction line

11 – Oil pump

Fig. 1

D4672 9102

20013749 2

FIRING RATE

OVERALL DIMENSIONS

MOUNTING THE BURNER

0.8

0.2

0.4

Pressure in the combustion

chamber – mbar

1.5 2 2.5 3 Light oil output - kg/h

20 25 30 35 Thermal power - kW

D5223

0.6

Flange Burner

125 110 194

130

45°

ø89

213

162

D4673

180

75 72

150

45°

125

It is necessary that the insulating gasket

is placed between the boiler door and the

burner flange.

This insulating gasket has six holes,

which, if necessary, can be modified as

shown on the drawing on the right.

Verify that the installed

burner is lightly leaned

towards the button.

(See figure 2).

D5242

D5218

Fig. 2

BURNER FIXING

S7387

3 20013749

HYDRAULIC SYSTEM

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 air-

tight. The return line should termi-

nate 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 prim-

ing. Should lock-out occur prior to the

arrival of the fuel, await at least 20 sec-

onds before repeating the operation.

A filter must be installed on the suction fuel line.

meters

L meters

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, fig. 3).

meters

L meters

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,

page 1) and wait until the fuel flows out.

Fig. 3

20013749 4

ELECTRICAL WIRING

NOTES:

–Do not exchange the neutral with the phase.

– Wires of min. 1 mm2section. (Unless requested otherwise by local

standards and legislation).

– The electrical wiring carried out by the installer must be in compliance

with the rules in force in the Country.

CONTROL BOX, (see fig. 4)

To remove the control box (1) from the burner:

®Unscrew the fissing screws on the burner cover and remove it.

®Unscrew the fissing screws (2) on the plate and remove the control

box (1).

®Screw the two fissing screws (2) and reassemble the burner cover.

®Fix the control box (1) with plate far from the burner.

TESTING

Check the shut-down of the burner by opening the thermostats.

Fig. 4 2

D4677

Key to lay-out

A- Control box 530SE

C- Capacitor

E- Electrode

F- Fuse

FR - P.E. Cell

H- Lock-out signal

I- Main switch

M- Motor

PE - Burner-earth

TL - Limit thermostat

TS - Safety thermostat

XP.. - Pin plug

Y- Oil valve

5 20013749

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 .

NOZZLES RECOMMENDED: Monarch type R - NS; Delavan type W - A - E;

Steinen type H - Q ; Danfoss type H - B.

Angle: 60°: in most cases.

80°: in case of flame detachment, during ignitions at low tem-

peratures.

PUMP PRESSURE 12 bar : the pump leaves the factory set at this value

14 bar : improves flame retention; it is therefore suitable for ignitions

at low temperatures.

COMBUSTION HEAD SETTING:

Nozzle Pump pressure Burner output Comb. head

adjustment Air damper

adjustment

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

0.40 80° 12 1.6 0 2.4

0.50 60°/80° 12 2.0 1 3.1

0.60 60°/80° 12 2.4 2 3.6

0.65 60°/80° 12 2.6 3 3.8

0.75 60° 12 3.0 4 4.0

SETTING CARRIED OUT IN THE FACTORY

0.65 60°W 12 2.6 2 2.1

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 indicated in the schedule.

In the sketch on the left, the combustion head

is set for an output of 0.60 GPH at 12 bar,

while the shutter is level with set-point 2, as

required by the above schedule.

Blast tube

Regulating rod

Shutter

Terminal plane of the blast tube

D5322

135

Fig. 5

20013749 6

Combustion head settings indicated in the table 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 set-

ting of the combustion head, with the burner running,

operate on the rod (1, fig. 6) with a 6 mm spanner (2, fig.

6) as follows:

Turn to the right: (sign +), in order to increase the vol-

ume of air entering the combustion 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 combustion chamber and thus increasing its pressure. The CO2improves and

the adhesion of the flame to the diffuser tends to reduce. (This setting is not advisable for ignitions

at low temperatures).

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, fig. 6) at its end facili-

tates counting the number of turns.

AIR DAMPER ADJUSTMENT, (see fig. 7)

The mobile air damper (A) operated by the jack (B) as-

sures the complete opening of the air intake.

The regulation of the air-rate is made by adjusting the

fixed air damper (C), after loosing the screws (D).

When the optimal regulation is reached, screw tight the

screws (D) to assure a free movement of the mobile air

damper (A).

The settings indicated in the schedule refer to the burner

with its metal cover fitted and the combustion chamber

with “zero” depression.

These regulations are purely indicative.

Each installation however, has its own unpredictable

working conditions: actual nozzle output; positive or neg-

ative pressure in the combustion-chamber, the need of

excess air, etc.

All these conditions may require a different air-damper

setting.

It is important to take account of the fact that the air output of the fan differs according to

whether the burner has its metal cover fitted or not.

Therefore we recommended to proceed as follows:

– adjust the air damper as indicated in the table;

– mount the cover, simply by means of the upper screw;

– check smoke number;

– should it become necessary to modify the air output, remove the cover by loosening the screw,

adjust the air damper, remount the cover and finally recheck the smoke number.

D5323

Fig. 6

D5786

Fig. 7

7 20013749

ELECTRODE SETTING

START-UP CYCLE

ADJUSTMENTS, TO AVOID FLAME - DETACHMENT, AT BURNER IGNITION

This inconvenience can occur, when the temperature of the light oil decreases below +8 °C.

1) CORRECT POSITIONING OF THE ELECTRODES, (see fig. 8).

2) NOZZLE: ATOMIZING CONE

Choose empt ies or semi-empt ies cones.

For exemple: Delavan type A - E; Steinen type H; Danfoss type H.

3) PUMP - SETTING

The pump is factory set, at a pressure of 12 bar.

When the temperature of the gas-oil decreases below +8 °C, increase the pressure to 14 bar.

4) COMBUSTION-HEAD SETTING

Regulate the combustion-head one set-point further ahead than indicated in the instructions.

Example: the instructions require to set the combustion-head on set-point 2.

Instead, the setting is made on set-point 3.

5) FAN - AIR DAMPER ADJUSTMENT

Adjust the damper, reducing the excess air until the Bacharach number is not near 1.

(i.e. a combustion with the lowest possible excess-air).

IMPORTANT:

THESE DIMENSIONS MUST BE

OBSERVED

Attention:

Before assembling or removing the

nozzle, loosen the screw (A) and

move the electrodes ahead

2 – 2.5 mm

4± 0.3 mm

D5230 A

Fig. 8

Normal Lock-out, due to light-failure

Thermostat

Motor

Ignition transformer

Valve

Flame

Lock-out lamp ~12s D5229

~12s ~5s

20013749 8

MAINTENANCE

The burner requires periodic maintenance carried out by a qualified and authorised technician in con-

formity with legislation and local standards.

Periodic maintenance is essential for the reliability of the burner, avoiding the excessive consump-

tion of fuel and consequent pollution.

Before carrying out any cleaning or control always first switch off the electrical supply to

the burner acting on the main switch of the system.

THE BASIC CHECKS ARE:

®Check there are no occlusions or obstructions in the inlet or return pipes, in the air suction areas and

in the combustion product waste pipe.

®Clean the filter in the oil suction line and in the pump.

®Check for correct fuel consumption.

®Check that the burner electrical connections are correct.

®Replace the nozzle and check the correct position of electrodes.

®Clean the combustion head in the fuel exit area.

®Check that the positioning of the combustion head is correct and that it is properly fixed to the

boiler.

®Check that the air damper is positioned correctly.

Let the burner run at full capacity for about ten minutes, setting all the elements correctly as explained in

this manual. Then carry out the analysis of the combustion by checking:

- Smoke index as per the Bacharach scale; - CO2percentage (%); - CO content (ppm);

- NOx content (ppm); - Smoke temperature at the chimney.

This manual suits for next models

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