Riello Burners Gulliver BLU Series Quick start guide

2903330 (3) - 10/2008
Installation, use and maintenance instructions
Montage und Bedienungsanleitung
Light oil burners
Öl-Gebläsebrenner
CODE MODEL - MODELL TYPE - TYP
3737066 BGK1 370T1
3737456 BGK2 374T1
GB
D
One stage operation
Einstufiger Betrieb

RIELLO S.p.A.Legnago, 30/11/2005
DECLARATION OF CONFORMITY Royal Decree (A.R.) 8/1/2004 -
Belgium
Producer: RIELLO S.p.A.
37045 Legnago (VR) Italy
Tel. ++39.0442630111
www.rielloburners.com
Distributed by: RIELLO NV
Ninovesteenweg 198
9320 Erembodegem
Tel. [phone]
Fax. [phone]
e-mail. [e-mail]
URL. www.riello.be
This is to certify that the series of units specified below conforms to the model of the type
described in the EC declaration of conformity, and is produced and distributed in conformity with
the requirements laid down in Belgian Royal Decree (A.R.) dated 8 January 2004.
Product type: Light oil burner
Model: BGK1 – 370T1
BGK2 – 374T1
Standard applied: EN 267 and A.R. of 8 January 2004
Control body: TÜV SÜD Industrie Service GmbH
Ridlerstrase, 65
80339 Munchen DEUTSCHLAND
Measured value: NOx max: 120 mg/kWh
CO max: 8 mg/kWh
MANUFACTURER'S DECLARATION
RIELLO S.p.A. declares that the following products are compliant with NOx maximum emission
values as set by the German Directive 1.BimSchv, 2 August 2001, § 7 (2).
Product Type Model
Light oil burner 370T1
374T1
BGK1
BGK2

3330 1GB
INDEX
1. BURNER DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Burner equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Overall dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Firing rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1 Working position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2 Boiler fixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.3 Hydraulic systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.4 Electrical wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. BURNER OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Combustion adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Recommended nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.3 Pump pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.4 Maintenance position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.5 Combustion head setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.6 Air damper setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.7 Positioning of the optical fibre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.8 Electrode positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.9 Fuel heating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.10 Operating programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.10.1 Normal operation with preheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.10.2 Lockout due to firing failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.10.3 Lockout due to extraneous light during pre-purging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.10.4 Lockout types and triggering times in case of burner malfunction. . . . . . . . . . . . . . . . . . . . . . . 12
4.10.5 Control box reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.10.6 Re-cycle function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.10.7 Logging of burner operation parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.11 Additional programmable control box functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.11.1 Post-ventilation function (t6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.11.2 Continuous purging function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.11.3 Long pre-purging function (t7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.11.4 Function setting procedure using reset button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1 Visual diagnostic control box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6. FAULTS / SOLUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1 Start-up problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2 Operating irregularities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7. SAFETY WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1 Burner identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.2 Basic safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3330 2GB
1. BURNER DESCRIPTION
One stage light oil burner with low pollutant emissions (Nitric Oxide NOx, Carbon monoxide CO and unburnt
Hydrocarbons).
1.1 BURNER EQUIPMENT
Flange with insulating gasket. . . . . No. 1 Screw and nuts for flange to be fixed to boiler . . . No. 4
Screw and nuts for flange . . . . . . . No. 1 Flexible oil pipes with nipples. . . . . . . . . . . . . . . . No. 2
7 pin plug . . . . . . . . . . . . . . . . . . . No. 1 Remote reset connection . . . . . . . . . . . . . . . . . . . No. 1
Recirculating pipe . . . . . . . . . . . . . No. 1
1.2 ACCESSORIES
SOFTWARE DIAGNOSTIC KIT
A special kit is available that, by an optical link to a PC, shows the burner life together with operating hours, type
and number of failures, serial number, etc.
To visualise the diagnostics proceed as follows:
³Connect the kit supplied separately to the control box socket.
Reading of the information begins when the software programme included in the kit starts.
REMOTE RESET KIT
The burner has a remote reset kit (RS) consisting of a connection and a push-button operating at a dis-
tance of 20 metres max.
In order to install it remove the protective lock-out installed at the factory and insert the lock-out supplied
with the burner (see electrical diagram on page 6).
1– Oil pump
2– Air damper adjustment assembly
3– Nozzle holder assembly
4– Flange with insulating gasket
5– Control box
6– Reset button with lock-out lamp
7 – Amplified photoresistance
8 – Combustion head
9 – Recirculation pipe
10 – Motor
11 – Capacitor
³Burner with CE marking in conformity with EC directives: EMC 89/336/EC - 2004/108/EC, Low Voltage
73/23/EC - 2006/95/EC, Machines 98/37/EC and Efficiency 92/42/EC.
³CE Certification No.: 0036 0232/98 (370T1) – 0036 0233/98 (374T1), as 92/42/CEE.
³The burner meets protection level of IP X0D (IP 40) as EN 60529.
³The burner is approved for intermittent operation as per Directive EN 267.
D7350
Fig. 1 2
7
6
1
3
10
59
4
8
11

3330 3GB
2. TECHNICAL DATA
2.1 TECHNICAL DATA
2.2 OVERALL DIMENSIONS
2.3 FIRING RATES, (as EN 267)
TYPE 370T1 374T1
Output 1.5 −3.0 kg/h 2.7 −5.0 kg/h
Thermal power 17.8 −35.6 kW 32 −59.3 kW
Fuel Light oil, viscosity 4 – 6 mm2/s at 20 °C
Electrical supply Single phase, 230V ±10% ~50Hz
Motor Run current 0.8A – 2750 rpm – 288 rad/s
Capacitor 4 µF
Ignition transformer Secondary 8 kV – 16 mA
Pump Pressure 8 – 15 bar
Absorbed electrical power 0.25 kW
TYPEABCDEØ FØ GHIL
370T1 255 280 202 230 192 87 89 10 28 107
374T1 255 280 202 230 197 90 89 10 28 115
C
11
45°
45°
Ø G
EA
189
106
140
168
H
83
83
D
B
Ø F
L
D7217
I
12
15 20 25 30
3
35 40 45 50 55
45
60
D7637
0,2
0
0,8
0,6
0,4
370T1 374T1
Light oil output – kg/h
Thermal power – kW
Pressure in combustion
chamber – mbar

3330 4GB
3. INSTALLATION
THE BURNER MUST BE INSTALLED IN CONFORMITY WITH LEGISLATION AND LOCAL STANDARDS.
3.1 WORKING POSITION
The burner is designed for operation in positions 1and 2only. Installation 1is the preferred option as it is the
only one that enables maintenance to be performed as described later on in this manual.
Operation is possible with installation option 2though maintenance cannot be performed with the burner con-
nected to the boiler. Note that any other installation position is likely to hinder the unit’s proper operation. Instal-
lations 3, 4 and 5are prohibited as safety is compromised.
3.2 BOILER FIXING
Important: with some boilers it is possible that the CO values exceed those declared in this manual.
To reduce these emissions, the recirculation pipe supplied must be used.
To fit the burner to the boiler it is necessary to carry out the following:
³If necessary insert the recirculating pipe (1) on the burner blast tube (2) and fix it with the screw (3), (see
fig. 2).
Attention: respect the dimensions, as described in chapter “2.2 OVERALL DIMENSIONS“ at page 3.
³Put on the flange (4) the screw and two nuts, (see fig. 4).
³Widen, if necessary, the insulating gasket holes (5, fig. 5).
³Fix the flange (4) to the boiler door (6) using screws (7) and (if necessary) the nuts (8) interposing the
insulating gasket (5), (see fig. 3).
D7088
1 2 3 4 5
S7709
Boiler door must have a max. thickness of 80 mm, refractory linig included.
ATTENTION
S7708
E9163
D5012
Fig. 2 3
1 2
8
4
6
4
Fig. 4
Fig. 5
5
7
75
Fig. 3

3330 5GB
3.3 HYDRAULIC SYSTEMS
ONLY FOR ITALY: Automatic shut-off device as per Ministry of Internal Affairs’ regulation no. 73 dated 7/29/71.
H= difference of level; L= max. length of the suction line; I. D. = internal diameter.
PRIMING PUMP:
On the system in fig. 6 it is sufficient to loosen the suction gauge connec-
tion (6, fig. 7) and wait until oil flows out.
On the systems in fig. 8 and 9 start the burner and wait for the priming.
Should lock-out occur prior to the arrival of the fuel, await at least 20 sec-
onds before repeating the operation.
The pump suction should not exceed a maximum of 0.4 bar (30 cm Hg).
Beyond this limit gas is released from the oil. Oil pipes must be completely
tight.
In the vacuum systems (fig. 9) the return line should terminate within the oil
tank at the same level as the suction line. In this case a non-return valve is
not required. Should however the return line arrive over the fuel level, a
non-return valve is required. This solution however is less safe than previ-
ous one, due to the possibility of leakage of the valve.
H
meters
L meters
ø i
8 mm
ø i
10 mm
0,5
1
1,5
2
10
20
40
60
20
40
80
100
³
The burner is designed to accommodate the installation of
light oil supply pipes on either side.
³
It is necessary to install a filter on the fuel supply line.
³
The pump is designed to allow working with two pipes. In
order to obtain one pipe working it is necessary to unscrew
the return plug (2), remove the by-pass screw (3) and then
screw again the plug (2). (See fig. 7).
³
Before starting the burner make sure that the return pipe-
line is not clogged. An excessive back pressure would
cause the damage of the pump seal.
WARNING:
H
meters
L meters
ø i
8 mm
ø i
10 mm
0
0,5
1
1,5
2
3
3,5
35
30
25
20
15
8
6
100
100
100
90
70
30
20
SYSTEM
NOT PERMITTED 1- Suction line
2- Return line
3- By-pass screw
4 - Gauge connection
5- Pressure adjuster
6- Suction gauge connection
7- Valve
8- Auxiliary pressure gauge
1
324
8
76
Fig. 7
D5487
5
H
max. 4 m
max. 4 m
H
H
H
D6329
Fig. 8 Fig. 9

H
max. 4 m

D6328
Fig. 6
IN GERMANY

3330 6GB
3.4 ELECTRICAL WIRING
ATTENTION:
³Do not swap neutral and phase over, follow the diagram
shown carefully and carry out a good earth connection.
³The section of the conductors must be at least 1mm². (Unless
requested otherwise by local standards and legislation).
³The electrical wiring carried out by the installer must be in
compliance with the rules in force in the country.
CONTROL BOX, (see fig. 10)
To remove the control box from the burner it is necessary to:
³Disconnect all the connectors, the 7-pin plug, the high voltage ca-
bles and the earth wire (TB);
³Unscrew the bolt (A) and pull the control box in the direction of the
arrow.
To install the control box it is necessary to.
To install the control box it is necessary to:
³Screw the bolt (A) in at a torque of 1 - 1.2 Nm;
³Reconnect all the connectors previously disconnected.
NOTES:
The burners have been type-approved for intermittent operation.
This means they must stop at least once every 24 hours in order to al-
low the electrical control box to check its efficiency on start-up.
The boiler limit thermostat (TL) normally ensures the burner halts. If
this does not happen a time switch halting the burner at least once
every 24 hours must be applied in series to (TL).
AE9275
LAY-OUT
C– Capacitor
E– Electrode
F– Photoresistance
h1 – Hour counter
K– Thermostat enabling start-
up after preheating
MV – Motor
PH – Oil heater
RS – Remote reset
SER – Safety lockout device
S3 – Lock-out signal
T6A –Fuse
TB – Burner-earth
TL – Limit thermostat
TS – Safety thermostat
V1 – Oil valve
V2 – Safety lockout device
X7 – 7 pin plug
XP7 – 7 pole socket
TO BE DONE BY
THE INSTALLER
CARRIED-OUT
IN THE FACTORY
TESTING
³Check the burner has stopped by
opening the thermostats.
³Make sure the operating burner locks
out by covering the photoresistance.
CONTROL BOX
MO550
D7240
Main switch
230V ~ 50Hz
Fig. 10
Black
Blue
Brown
Black
White
Blue

3330 7GB
4. BURNER OPERATION
4.1 COMBUSTION ADJUSTMENT
In conformity with Efficiency Directive 92/42/EEC the application of the burner on the boiler, adjustment and
testing must be carried out observing the instruction manual of the boiler, including verification 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, choose the proper nozzle and 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), and they refer to 12.5% CO2
at sea level (1013 hPA) and with light oil and room temperature of 20 °C, with a combustion chamber pres-
sure of 0 mbar.
4.2 RECOMMENDED NOZZLES
Steinen type 60° H;
Danfoss type 60° H;
Delavan type 60° W.
4.3 PUMP PRESSURE
The pump leaves the factory set at 12 bar.
To change it act on pump pressure adjust screw (5, fig. 7, page 5).
TYPE
Nozzle Pump
pressure
Burner
output
Combustion head
adjustment
Air damper
adjustment
GPH Angle bar kg/h ± 4% Set-point Set-point
370T1
0.40 60° W 13 1.5 11.4
0.50 60° W 12 1.7 1.5 1
0.60 60° W 12 2.1 22.2
0.65 60° W 12 2.3 2.5 2
0.75 60° W 12 2.7 3 3
0.75 60° W 14 3.0 3.5 3.2
374T1
0.75 60° W 12 2.7 1.5 1.2
0.85 60° W 12 3.0 1.5 1.8
1.00 60° W 12 3.7 2 2
1.10 60° W 12 4.1 2.5 2.2
1.25 60° W 12 4.6 3.5 2.8
1.25 60° W 14 5.0 4 3
QUALIFIED PERSONNEL WITH THE RIGHT INSTRUMENTS MUST HANDLE THE BURNER'S FIRST
START-UP
!
WARNING
NOTE:
to achieve CLASS 3 (EN267:1999) emissions, hollow-cone
nozzles have been used.

3330 8GB
4.4 MAINTENANCE POSITION
Before performing maintenance on the burner, it is best to disconnect the system’s power supply.
ACCESSIBILITY TO THE NOZZLE, THE DIFFUSER DISC AND THE ELECTRODES IS MADE EASY IN 2 WAYS:
³Pull the wires (2) from the control box and the
photoresistance (8) and undo the nut (9) from the
pump.
³Loosen the screws (10) and extract the nozzle
holder (1) by turning it towards the right.
³Remove the wires (2) from the electrodes, loo-
sen the screw (4, fig. 15, page 9) and extract
the diffuser disc support assembly from (3) the
nozzle holder assembly (1).
³Screw up the nozzle (6) holding the nozzle
holder with the aid of a wrench.
³Refit following the above procedure in the
reverse order.
³Unscrew and remove the screw fastening it to
the flange to take the burner off the boiler.
³Hook the burner onto flange (7), loosen screws
(5) and pull off the blast tube assembly (4).
³Loosen screw (4, fig. 15, page 9) to remove the
diffuser disc support assembly (3) from nozzle-
holder assembly (1).
³Unscrew fastening screw (4, fig. 15, page 9) all
the way so that you can pull optical fibre (8) out
from the diffuser disc support assembly (3).
³Pull wires (2) out from electrodes.
³Replace nozzle (6) and screw the new one on
properly, holding it as illustrated in figure 12.
³Refit following the above procedure in the
reverse order.
WARNING
In the event of maintenance made to the diffuser disc-holder
assembly, screw the nut (9) as shown in the figure 13.
Fig. 11
2
8
3
9
10
6
14
3
2
5
6 7
E9286
1
Fig. 12
8
S7948
TIGHTEN WITHOUT MOVING
BACKWARDS TO THE END D5684
9
Fig. 13

3330 9GB
4.5 COMBUSTION HEAD SETTING, (fig. 14)
Combustion head adjustment varies depending on
burner delivery. To adjust, proceed as follows:
³Turn adjusting screw (2) clockwise or anticlockwise
until the notch on the regulating rod (3) is lined up with
the outer surface of the nozzle-holder assembly (1).
³In the example, the regulating rod (3) is set to setpoint
3. This means the burner is adjusted for an output of
2.7 kg/h with a pump pressure of 12 bar using a
0.75 GPH nozzle, as indicated in the reference table
relating to burner type 370T1.
4.6 AIR DAMPER ADJUSTMENT
To adjust the air damper proceed as follows:
³Loosen nut (5, fig. 14) and set the valve by adjusting
the screw (4).
³When the adjustment is complete screw down nut (5).
Type 370T1 - BGK1
When the burner stops, the air damper closes automati-
cally until maximum negative flue pressure is 0.5 mbar.
Type 374T1 - BGK2
When the burner stops, the air damper stays open.
4.7 POSITIONING OF THE OPTICAL FIBRE, (see fig. 15)
To position the optical fibre, you must proceed as follows:
³Insert optical fibre (1) in the diffuser disc support assembly (3), making sure it is pushed in all the way.
³Tighten screw (4) carefully to hold optical fibre (1) in place.
4.8 ELECTRODES ADJUSTMENT, (see fig. 14)
WARNING:
MEASURES MUST BE
RESPECTED
To reach the electrodes, proceed
as described in the paragraph
“4.4 MAINTENANCE POSI-
TION” on page 8.
Do the following make the regu-
lation:
Appoggiare il gruppo supporto eli-
ca (3) al portaugello (2) e blocca-
re con la vite (4).
Per eventuali aggiustamenti del
gruppo elettrodi (5) allentare la
vite (6).
4.9 FUEL HEATING
In order to assure regular ignition and operation even at low temperatures, the burner has an oil heater fitted in
the combustion head. The heater starts when the thermostats close.
When the required temperature for ignition is reached, a thermostat fitted on the nozzle holder enables burner
start-up. Heating stays on during operation and switches off when the burner shuts down.
S7938
Fig. 14 2
1
3
1
4 5
D4222
4.5 – 0.5 mm
03 ± 0.3 mm
5.5 ± 0.3 mm
41
2
5 6
3
Fig. 15

3330 10 GB
4.10 OPERATING PROGRAMME
4.10.1 NORMAL OPERATION WITH PREHEATING
KEY TO LAY-OUT
F– Photoresistance
I– Ignition transformer
K– Thermostat enabling start-up after pre-
heating
LED – Reset button LED indicating operating
status
MV – Fan motor
PH – Oil heater
TL – Limit thermostat
V1 – Oil valve
t1 Standby time pending an input signal to control box:
reaction time, control box takes no action for time t1.ts Safety time: lockout occurs if no flame is detected by
the end of time ts.
t1I Extraneous light detected before demand for heat:
lockout occurs if light persists for time t1l.t4i Transformer ignition time:
total ignition time: ts + t5i.
t2 Standby time following a demand for heat:
control box takes no action for time t2.t5i Transformer post-ignition time: additional ignition time following ts.
t2I Extraneous light detected during oil preheating:
lockout occurs if light persists for time t2l.t4I
Flame loss during operation:
oil valve drop maximum reaction time, lockout occurs
after 3 recycle attempts.
t2p
Max. preheating time:
lockout occurs if thermostat Kdoes not switch within
time t2p, control box takes no action for time t2p.
t6
Post-purging time:
additional purging time when heat demand limit
thermostat (TL) opens.
t3 Pre-purging time:
fan motor starts. t6I Extraneous light detected during post-purging:
lockout occurs if light persists for time t6l.
t3I Extraneous light detected during pre-purging:
immediate lockout. t7 Long pre-purging time:
pre-purging time longer than t3.
D7230
No signal needs to be received
Yellow Green Yellow
Green
Yellow
MV = stopped
Loss of flame during operation (Recycle max. 3 attempts)
Yellow
Green
Yellow Yellow
Red
OPERATING TIMES
Time is expressed in seconds
t1 max 1 ts -5
t1I max 30 t4i -8
t2 -3 t5i -3
t2I max 30 t4I max 1
t2p max 600 t6 max 360
t3 -15 t6I max 30
t3I max 1 t7 - 120
Lockout
Red
Green + Yellow slow flashing
Green + Yellow fast flashing
Yellow
Green
Green + Yellow medium flashing
Red + yellow fast flashing
Yellow fast flashing

3330 11 GB
4.10.2 LOCKOUT DUE TO FIRING FAILURE
KEY TO LAY-OUT
F– Photoresistance
I– Ignition transformer
K– Thermostat enabling start-up after pre-
heating
LED – Reset button LED indicating operating
status
MV – Fan motor
PH – Oil heater
TL – Limit thermostat
V1 – Oil valve
4.10.3 LOCKOUT DUE TO EXTRANEOUS LIGHT
DURING PRE-PURGING
D7232
No signal needs to be received
Yellow Green Red
Green+Yellow
Yellow Green Red+Yellow
Lockout due to extraneous light during preheating
Red
Lockout
Yellow Yellow
OPERATING TIMES
Time is expressed in seconds
t1 max 1 ts -5
t1I max 30 t4i -8
t2 -3 t5i -3
t2I max 30 t4I max 1
t2p max 600 t6 max 360
t3 -15 t6I max 30
t3I max 1 t7 - 120
D7231
Red
Green + Yellow slow flashing
Green + Yellow fast flashing
Yellow
Green
Green + Yellow medium flashing
Red + yellow fast flashing
Yellow fast flashing

3330 12 GB
COLOUR CODE OF CONTROL BOX RESET BUTTON LED
(*) only for applications where this is an option.
4.10.4 LOCKOUT TYPES AND TRIGGERING TIMES IN CASE OF BURNER MALFUNCTION
(*) only for applications where this is an option.
4.10.5 CONTROL BOX RESET
To carry out the control box reset, proceed as follows:
³Hold the reset button down for between 1 and 2 seconds. If the burner does not restart, you must make sure
the limit point thermostat (TL) is closed.
³If the control box reset button keeps flashing, reporting the cause of the malfunction (RED LED), you
must press the button again, holding it down for no more than 2 seconds.
4.10.6 RE-CYCLE FUNCTION
The control box allows re-cycling, i.e. the complete repetition of the starting programme, for 3 attempts maxi-
mum, in the event the flame goes out during operation.
If the flame goes out again, this will cause the burner to lock out. If there is a new demand for heat during the
recycle, the 3 attempts are reset when the limit thermostat (TL) switches.
4.10.7 LOGGING OF BURNER OPERATION PARAMETERS
With this control box, data - i.e. the number of lockouts that have occurred, the type of lockout that has
occurred (just the last one) and the oil valve opening operating time - can be logged even when there is no
power supply. That way, you can determine how much fuel has been consumed during operation.
To view these parameters, you will need to connect the software diagnostics kit, as described in section
(1.2) on page 2.
Operating status LED colour codes Flashing
speed
ON OFF
Seconds
Standby LED unlit
Preheating Yellow
Pre-purging Green
Long pre-purging Green
Transformer ignition Green + Yellow flashing Fast 0.3 0.3
Regular flame Green + Yellow flashing Slow 0.3 2
Post-purging Green + Yellow
Recycle Green + Yellow flashing Medium 2 1
Continuous purging (*)Green
Extraneous light during preheating or standby Yellow flashing Fast 0.3 0.3
Extraneous light during post- or continuous purging (*)Green + Yellow flashing Fast 0.3 0.3
Extraneous light during lockout Red + Yellow flashing Fast 0.3 0.3
Lockout Red
Lockout with continuous purging (*)Red + Green
DESCRIPTION OF FAULT TYPES LOCKOUT
Oil heater fault: starting thermostat (K) contact fails to switch After max. 6 minutes
Extraneous light when the burner is turned on and off After max. 30 seconds
Extraneous light detected during oil preheating After max. 30 seconds
Extraneous light detected during pre-purging Within 1 second
Extraneous light detected during post-purging or continuous purging (*) After max. 30 seconds
Flame goes out during operation After 3 recycles
No flame is detected after safety time Immediate

3330 13 GB
4.11 ADDITIONAL PROGRAMMABLE CONTROL BOX FUNCTIONS
4.11.1 POST-VENTILATION FUNCTION (t6)
Post-ventilation is a function that maintains air ventilation even after the burner is switched off. The burner
switches off when the limit thermostat (TL) opens, cutting off the fuel supply to the valves.
To use this function the reset button must be pressed when the limit thermostat is not switched over
(burner switched off). Post-ventilation time can be set to a maximum of 6 minutes. Proceed as follows:
³Press and hold the reset button for at least 5 seconds till the LED indicator changes to red.
³Set the desired time pressing the button repeatedly: once = post-ventilation for 1 minute.
³After 5 seconds the control box automatically shows the minutes set by the red LED flashing:
1 pulse = post-ventilation for 1 minute.
To reset this function, press and hold the button for at least 5 seconds, till the LED indicator changes to red then
release it without carrying out any operation, then wait for 20 seconds for the burner to start.
If during post-purging there is a new request for heat, post-purging time is halted and a new operating cycle
starts when the limit thermostat (TL) switches over.
If there is extraneous light during post-purging, the burner locks out after 30 seconds.
The control box leaves the factory with the following setting: 0 minutes = no post-purging.
4.11.2 CONTINUOUS PURGING FUNCTION, (only for applications where this is an option)
Continuous purging is a function that keeps air purging on regardless of whether burner ignition is being
requested. As soon as this mode is set, the motor keeps running both when the limit thermostat (TL) is not
switched (burner off) and when the burner is locked out.
Only when the limit thermostat (TL) switches will the motor stop for the standby time of 4 seconds (standby posi-
tion = t2 + t1).
The function can be set with the reset button, when the limit thermostat (TL) is not switched (burner off),
following the procedure in section 4.11.1 post-purging function, by pressing the button 7 times = continu-
ous purging.
To reset this function, simply hold the button down for 5 seconds until the indicator LED goes red and release it
without performing any operation, then wait at least 20 seconds to allow the burner to restart.
If there is extraneous light when the limit thermostat (TL) switches, the motor stops for as long as the extrane-
ous light persists, after which there is a lockout.
The control box's factory setting is as follows: 0 minutes = no continuous purging.
4.11.3 LONG PRE-PURGING FUNCTION (t7)
Long pre-purging is a feature that can be used to lengthen the air purging period to 2 minutes from when the
limit thermostat (TL) switches to when the flame ignites. The function can be set with the reset button, when the
limit thermostat (TL) is not switched (burner off), following the procedure in section 4.11.1 post-purging function,
by pressing the button 8 times = long pre-purging.
To reset this function, simply hold the button down for 5 seconds until the indicator LED goes red and release it
without performing any operation, then wait at least 20 seconds to allow the burner to restart.
The control box's factory setting is as follows: 0 minutes = no long pre-purging.
4.11.4 FUNCTION SETTING PROCEDURE USING RESET BUTTON
Control box
function
Action with
reset button
Reset button
in enabled status
Reset 1 to 2 seconds After control box lockout
Visual diagnostics of lockout causes
(5.1) 3 seconds After control box lockout
Post-purging (4.11.1) 5 seconds then
press once = 1 minute
With limit thermostat (TL) not
switched (burner off)
Continuous purging (4.11.2)
(only for applications where this is an
option)
5 seconds then
press 7 times = continuous purging
With limit thermostat (TL) not
switched (burner off)
Long pre-purging (4.11.3) 5 seconds then
press 8 times = long pre-purging
With limit thermostat (TL) not
switched (burner off)
Resetting set functions 5 seconds With limit thermostat (TL) not
switched (burner off)
Resetting operation parameters 5 seconds With limit thermostat (TL) switched
during pre-purging

3330 14 GB
5. MAINTENANCE
Disconnect the electric supply to the burner by switching off the main power switch and close the light
oil shut-off valve before maintaining or checking the system.
The burner requires scheduled maintenance that must be carried out by qualified personnel and in compliance
with local legislation.
Scheduled maintenance is vital for the smooth operation of the burner; it avoids waste of fuel and reduces harm-
ful emissions into the atmosphere.
THE FUNDAMENTAL OPERATIONS TO CARRY OUT ARE AS FOLLOWS:
³Check there are no occlusions or obstructions in the inlet or return pipes, in the air suction areas and in
the combustion product waste pipe.
³Check that the positioning of the combustion head is correct and that it is properly fixed to the boiler.
³Clean the combustion head at the fuel outlet.
³Clean the turbulence diffuser disc and the end of the optical fibre (1, fig. 15, page 9).
³Clean the fuel suction line filter and the pump filter.
³Check that the burner electrical connections are correct.
³Clean the photoresistance (8, fig. 11, page 8).
³Check for correct fuel consumption.
³Check the combustion head (fig. 14 page 9) and the air damper are set correctly (fig. 14 page 9).
³Replace the nozzle if necessary (fig. 10 and 11, page 8) and check the correct position of electrodes (fig.
15, page 9).
³Clean the fan.
Leave the burner working without interruptions for 10 min. and check the right settings of all components
stated 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.
5.1 VISUAL DIAGNOSTIC CONTROL BOX
The control box has a diagnostic function that can identify the likely causes of any malfunctions (indicator:
RED LED).
In order to be able to use this function, press and hold the reset button for at least 3 seconds from when the
appliance is made safe (lock-out).
The control box sends a sequence of pulses that are repeated at 2-second intervals.
The sequence of pulses issued by the control box identifies the possible types of malfunction, which are
listed in the table below.
SIGNAL PROBABLE CAUSE
2 pulses
The flame does not stabilise at the end of the safety time:
–photoresistance faulty or dirty;
– oil valve faulty or dirty;
– faulty ignition transformer;
– poor burner regulation.
4 pulses
Light present in the chamber before the burner’s switching on or off:
– presence of a strange light before or after the limit thermostat switching
over;
– presence of a strange light during pre-purging;
– presence of a strange light during post-ventilation.
2sPulses Pulses
RED LED illuminated
press reset for 3 sec.
Interval

3330 15 GB
To reset the control box after the diagnostics display, press the lockout-reset button.
6. FAULTS / SOLUTIONS
Below is a list of some of the causes and possible solutions to a series of problems that might be encoun-
tered and could cause a failure to start or irregular burner operation.
A fault usually makes the lock-out lamp light which is situated inside the reset button of the control box
(6, fig. 1, page 2).
When lock out lamp lights the burner will attempt to light only after pushing the reset button. After this if the
burner functions correctly, the lock-out can be attributed to a temporary fault. However, if lockout contin-
ues, you must determine the cause of the problem and take the action illustrated in the solution column in
the tables below.
6.1 START-UP PROBLEMS
SIGNAL PROBABLE CAUSE
7 pulses
Loss of flame during operations:
– poor burner regulation (insufficient gas);
– oil valve faulty or dirty;
–photoresistance faulty or dirty.
8 pulses
Check and monitor oil heater (if fitted):
– heater or control thermostat faulty.
FAULT POSSIBLE CAUSES SOLUTION
The burner doesn’t
start when the limit
thermostat closes.
Lack of electrical supply.
Check presence of voltage in the L1 - N
clamps of the 7 pin plug.
Check the conditions of the fuses.
Check that safety thermostat is not lock
out.
Heating and start thermostats are
faulty. Replace them.
The connections in the control box are
wrongly inserted.
Check and connect completely all the
plugs.
The burner goes in
safety lock-out be-
fore or during the
pre-purge phase.
The photoresistance sees strange
light. Eliminate the light.
ATTENTION

3330 16 GB
6.2 TROUBLE DURING OPERATION
Burner runs normal-
ly in the prepurge
and ignition cycle
and locks out after 5
seconds ca.
The photoresistance is dirty. Clear it.
The photoresistance is defective. Change it.
The fibre optic is dirty. Clear it.
The fibre optic is not in line with the
hole of the diffuser disc-holder as-
sembly.
Check the line-up.
Flame moves away or fails.
Check pressure and output of the fuel.
Check air output.
Change nozzle.
Check the coil of solenoid valve.
Yellow flame.
Nozzle dirty or worn. Replace it.
Defect in the air output. Adjust the air output.
Pump pressure is not correctly set.
Verify the pressure and the output of the
fuel and adjust them according to the in-
structions of this manual.
Air suction inlet is clogged. Clear it.
Obstruction in the exhaust circuit. Clear it.
Burner starts with an
ignition delay.
The ignition electrodes are wrongly
positioned.
Adjust them according to the
instructions of this manual.
Air output is too high. Set the air output according to the
instructions of this manual.
Nozzle dirty or worn. Replace it.
FAULT POSSIBLE CAUSES SOLUTION
Burner locks out
during operation.
Flame disappears 4 times. Clean or replace photoresistance.
Replace dirty or deteriorated nozzle.
Does not shut down.
Check efficiency of photoresistance.
Check efficiency of pressure regulator's
piston.
Check efficiency of pump's on-off valve.
FAULT POSSIBLE CAUSES SOLUTION

3330 17 GB
7. SAFETY WARNINGS
The dimension of the boiler’s combustion chamber must respond to specific values, in order to guarantee a
combustion with the lowest polluting emissions rate.
The Technical Service Personnel will be glad to give you all the imformation for a correct matching of this
burner to the boiler.
This burner must only be used for the application it was designed for.
The manufacturer accepts no liability within or without the contract for any damage caused to people, ani-
mals and property due to installation, adjustment and maintenance errors or to improper use.
7.1 BURNER IDENTIFICATION
The Identification Plate on the product gives the serial number, model and main technical and performance
data. If the Identification Plate is tampered with, removed or missing, the product cannot be clearly identi-
fied thus making any installation or maintenance work potentially dangerous.
7.2 BASIC SAFETY RULES
³Children or inexpert persons must not use the appliance.
³Under no circumstances must the intake grids, dissipation grids and ventilation vents in the installation
room be covered up with cloths, paper or any other material.
³Unauthorised persons must not attempt to repair the appliance.
³It is dangerous to pull or twist the electric leads.
³Cleaning operations must not be performed if the appliance is not disconnected from the main power supply.
³Do not clean the burner or its parts with inflammable substances (e.g. petrol, alcohol, etc.). The cover
must be cleaned with soapy water.
³Do not place anything on the burner.
³Do not block or reduce the size of the ventilation vents in the installation room.
³Do not leave containers and inflammable products in the installation room.

RIELLO S.p.A.Legnago, 30/11/2005
KONFORMITÄTSERKLÄRUNG K.E. 8.1.2004 - Belgium
Hergestellt von: RIELLO S.p.A.
37045 Legnago (VR) Italy
Tel. ++39.0442630111
www.rielloburners.com
In den Verkehr gebracht durch: RIELLO NV
Ninovesteenweg 198
9320 Erembodegem
Tel. [phone]
Fax. [phone]
e-mail. [e-mail]
URL. www.riello.be
Wir bestätigen hiermit, dass die nachstehende Geräteserie dem in der CE-Konformitätserklä-
rung beschriebenen Baumuster entspricht und dass sie im Einklang mit den Anforderungen
des K.E. vom 8. Januar 2004 hergestellt und in den Verkehr gebracht wird.
Produktart: Öl-Gebläsebrenner
Modell: BGK1 – 370T1
BGK2 – 374T1
Angewandte Norm: EN 267 und K.E. vom 8. Januar 2004
Kontrollorganismus: TÜV SÜD Industrie Service GmbH
Ridlerstrase, 65
80339 Munchen DEUTSCHLAND
Meßwerte: NOx max: 120 mg/kWh
CO max: 8 mg/kWh
ERKLÄRUNG DES HERSTELLERS
RIELLO S.p.A. erklärt, dass die folgenden Produkte die Nox-Emissionsgrenzwerte gemäß der
deutschen Vorschrift 1. BImSchV, 2. August 2001, § 7 (2) respektieren.
Produktreihe Typ Modell
Öl-Gebläsebrenner 370T1
374T1
BGK1
BGK2