Riello Burners RG0.R Quick start guide

Montage- og driftsinstruktion
Montage- och driftinstruktion
Montasje og driftsinstruks
Installation, use and maintenance instructions
2902611 (5)
Light oil burners
Oliebrændere
Oljebrännare
Oljebrennere
CODE - KODE - KOD MODEL - MODELL TYPE - TYP
3736520 RG0.R 367 T1
3736521 RG0.R 367 T1
3736720 RG0.1R 368 T1
GB
DK
S
N
One stage operation
Et-trins funktion
Enstegsfunktion
Ett-trinns brenner

2611
1GB
INDEX
1. BURNER DESCRIPTION
One stage gas oil burner.
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
1. BURNER DESCRIPTION. . . . . . . . . . . . 1
1.1 Burner equipment . . . . . . . . . . . . . . . . . 1
2. TECHNICAL DATA . . . . . . . . . . . . . . . . 2
2.1 Technical data . . . . . . . . . . . . . . . . . . . . 2
2.2 Overall dimensions . . . . . . . . . . . . . . . . 2
2.3 Working fields . . . . . . . . . . . . . . . . . . . . 2
3. INSTALLATION . . . . . . . . . . . . . . . . . . . 3
3.1 Boiler fixing . . . . . . . . . . . . . . . . . . . . . . 3
3.2 Fuel supply . . . . . . . . . . . . . . . . . . . . . . 3
3.3 Hydraulic systems . . . . . . . . . . . . . . . . . 4
3.4 Electrical wiring . . . . . . . . . . . . . . . . . . . 5
4. WORKING . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 Combustion adjustment. . . . . . . . . . . . . . 6
4.2 Recommended nozzles . . . . . . . . . . . . . . 6
4.3 Setting of electrodes . . . . . . . . . . . . . . . . 7
4.4 Pump pressure . . . . . . . . . . . . . . . . . . . . 7
4.5 Air damper adjustment . . . . . . . . . . . . . . 7
4.6 Fuel heating . . . . . . . . . . . . . . . . . . . . . . 8
4.7 Burner start-up cycle . . . . . . . . . . . . . . . . 8
5. MAINTENANCE . . . . . . . . . . . . . . . . . . . 8
6. FAULTS / SOLUTIONS . . . . . . . . . . . . . . 9
■CE Certification No. : 0036 0272/99 (367T1) - 0036 0273/99 (368T1), as 92/42/EEC.
■The burner meets protection level of IP X0D (IP 40), EN 60529.
■Burner with CE marking in conformity with EEC directives: EMC 89/336/EEC, Low Voltage 73/23/EEC,
Machines 98/37/EEC and Efficiency 92/42/EEC.
1– Oil pump
2– Control-box
3– Reset button with lock-out
lamp
4– Photoresistance
5– Flange with insulating
gasket
6– Air damper adjustment assembly
7– Nozzle holder assembly
5
1
2
3
6
4
7
Fig. 1 E9073

2611
2GB
2. TECHNICAL DATA
2.1 TECHNICAL DATA
2.2 TECHNICAL DATA
2.3 WORKING FIELDS (as EN 267)
TYPE 367T1 368T1
Output - Thermal power kg/h 1.4 – 2.3 1.8 – 3.1
kW 16.6 – 27.3 21.3 – 36.7
Fuel Gas oil, viscosity 4 – 6 mm2/s at 20 °C
Electrical supply Single phase, ~50Hz 230V ±10%
Motor Run current 0.85A – 2750 rpm – 289 rad/s
Capacitor 4 µF
Ignition transformer Secondary 8 kV – 16 mA
Pump Pressure: 8 – 15 bar
Absorbed electrical power 0.29 kW
A B F 180
130
150
C
E
G
11
72
72
91
45°
45°
D1674
øD
CODE-TYPE ABCDEFG
3736520 - 367T1 220782084168255210
3736521 - 367T1 205 120 5 84 168 255 210
3736720 - 368T1 205 93 5 84 168 255 210
1.4 1.8
15 20 25
0.8
0.6
0.4
0.2
0
2.2
30
3
35
1.0
2.6
Gas oil output – kg/h
Thermal power – kW
Pressure in combustion
chamber – mbar
D1673
367T1 368T1
1.61.2 2.4 2.8 3.22

2611
3GB
3. INSTALLATION
THE BURNER MUST BE INSTALLED IN CONFORMITY WITH LEGISLATION AND LOCAL STANDARDS.
3.1 BOILER FIXING
➤Put on the flange (1) the screw and two nuts, (see fig. 2).
➤Widen, if necessary, the insulating gasket holes (5).
➤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. 3).
3.2 FUEL SUPPLY
The burner is designed to allow entry of the oil supply pipes on either side.
Depending on the oil supply pipes position (to the right or to the left hand side of the burner) the fixing plate
(1) and closing plate (2) should be reversed, (see fig. 4).
E9075
E9076
2
1
2 5 4
3
Fig. 2
Fig. 3
D4137
Fig. 4

2611
4GB
3.3 HYDRAULIC SYSTEMS
It is necessary to install a filter on the fuel supply line.
H= difference of level; L= max. length of the suction line; I. D. = internal diameter of the oil pipes.
H
max. 4 m
max. 4 m
H
H
H
D6195
Fig. 7 Fig. 8
PRIMING PUMP:
On the system in fig. 6 it is sufficient to loosen the suction gauge
connection (5, fig. 5) and wait until oil flows out.
On the systems in fig. 7 and 8 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.
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. 8) 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 re-
quired. Should however the return line arrive over the fuel level, a non-return
valve is required.
This solution however is less safe than previous one, due to the possibility of
leakage of the valve.
H
meters
L meters
I. D.
8 mm
I. D.
10 mm
0.5
1
1.5
2
10
20
40
60
20
40
80
100
H
meters
L meters
I. D.
8 mm
I. D.
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
IN GERMANY
■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. 5).
■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:
Fig. 6
H
max. 4 m
D6194
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 test point
F i g . 5
D5912
2
3
4
7
6
5
18

2611
5GB
3.4 ELECTRICAL WIRING
TESTING
Check the shut-down of the
burner by opening the thermo-
stats and the lock-out by dark-
ening the photoresistance.
ESEGUITO IN FABBRICA
NOTES:
– 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.
WARNING
CONTROL BOX
To remove the control box from the burner, loosen screw (A, fig. 9)
and pull to the arrow direction, after removing all components, the
7pinplugand earth wire.
In case of disassembly of the control box, retighten the screw
(A) with a torque wrench setting of 1 – 1.2 Nm.
DO NOT EXCHANGE NEUTRAL WITH PHASE
7 pin plug
7 pole socket
Black
White
Capacitor
Main switch
T6A
Motor
Safety
thermostat
Blue
Oil valve
Hour counter
(230V - 0.
1A max.)
thermostat
Limit Remote lock-out signal
(230V - 0.5A max.)
Ignition
electrodes
Brown
Air damper
Burner-earth
CARRIED-OUT IN THE FACTORY
Heater with start
thermostat
553SE/H
CONTROL BOX
D4000
Photoresistance
coil
PE L N
~ 50Hz 230V
Blue
Brown Blue
S7186
Fig. 9
A

2611
6GB
4. WORKING
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 CO2
concentration 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, adjust the pump pressure 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.
4.2 RECOMMENDED NOZZLES: Delavan type W - B ; Danfoss type S - B;
Monarch type R ; Steinen type S - Q.
MAINTENANCE POSITION
TYPE
Nozzle Pump pressure Burner output Air damper adjustment
GPH Angle bar kg/h ± 4% Set-point
367T1
0.40 60° 11 1.4 1.0
0.50 60° 12 1.9 1.8
0.60 60° 12 2.3 2.8
368T1
0.50 60° 12 1.9 1.5
0.60 60° 12 2.3 2.2
0.65 60° 12 2.5 2.7
0.75 60° 13 3.0 3.9
ACCESSIBILITY TO THE NOZZLE, THE DIFFUSER
DISC AND THE ELECTRODES, (see fig. 10)
➤Remove the burner from the boiler after loosening the
flange anchor nut.
➤For the codes 3736521 and 3736720, hook the burn-
er on to the flange (1).
➤Loosen the bolts (3) and remove the blast tube (2) by
rotating (the fitting is bayonet type).
➤Remove the small cables (4) from the electrodes
and the diffuser disc-holder assembly (5) from the
nozzle-holder assembly after loosing its fixing
screw (3, fig. 11, page 7).
➤Screw the nozzle (6) and tighten it as shown in the
figure.
WARNING
In the event of maintenance
made to the nozzle-holder
assembly, screw the nut (C)
as shown in the figure to the
right.
C
TIGHTEN WITHOUT MOVING
BACKWARDS TO THE END
D5684
5
E9121
1
4
Fig. 10
3
2
6

2611
7GB
4.3 SETTING OF ELECTRODES, (see fig. 11)
4.4 PUMP PRESSURE: - The pump leaves the factory set at 12 bar.
- To change it act on pump pressure adjust screw (4, fig. 5, page 4).
4.5 AIR DAMPER ADJUSTMENT, (see fig. 12)
➤Use the knob (1) to make adjustments after slightly loosening the screw (2) and swinging out the protective
covering (3).
➤Once adjustments have been made, place the protective covering (3) in its correct position and tighten the
screw (2).
➤Fig. 12 shows adjustment of the air damper to a flow rate of 2.1 kg/h (notch 2.6).
➤When burner shuts down the air damper automatically closes to a max flue draw of 0.5 mbar.
➤The burner is also fitted with an electromagnetic device (4) which prevents any slamming of the air damper on
burner starting, even in the presence of high boiler counter-pressure.
NOTE
In the event that the electromagnetic damper anti-slamming device (4, fig. 12) fails, the burner will not start as
the device is connected to the motor in series (see diagram page 5), and as such takes on a role of safety
device.
In the event of an anomaly, the burner may even be started without the device as it is connected to the circuit via
special connectors which allow it to be cut out. The male and female connectors on the device wire must be
disconnected and the motor connectors must be connected between them.
When resorting to this temporary solution, it is fundamental that an alternative adjustment of the air damper is
carried out.
2 – 0.2 mm
PLACE THE DIFFUSER DISC-HOLDER ASSEMBLY (1) ON THE NOZZLE-HOLDER (2) AND TIGHTEN
THE SCREW (3). For any adjustments, loosen the screw (4) and move the electrodes (5).
1
4.5 – 0.5 mm
0
D1676
3 2
5 4
To have access to the elec-
trodes carry out operation as
described in chapter “4.2
RECOMMENDED NOZZLES”
(page 6).
Fig. 11
+0.2
WARNING
MEASURES MUST BE
RESPECTED
Fig. 12
Adjustment reference side
D1693
2
3
1
4
D1691
012 453

2611
8GB
4.6 FUEL HEATING
In order to assure regular ignition and working also at low temperature the burner has an oil pre-heater fit-
ted in combustion head. The pre-heater starts when thermostats close.
When the required temperature for ignition is reached the thermostat fitted on the nozzle holder starts the
burner (delay time: 0 to 150 seconds)
.
The pre heater remains energised during working and cuts out when burner shuts-down.
4.7 BURNER START-UP CYCLE
Lock out is indicated by a lamp on the control box (3, fig. 1, page 1).
5. MAINTENANCE
The burner requires periodic maintenance carried out by a qualified and authorised technician in conformity
with legislation and local standards.
Maintenance is essential for the reliability of the burner, avoiding the excessive consumption 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 that there are not obstructions or dents in the supply or return oil pipes.
➤Clean the filter in the oil suction line and in the pump.
➤Clean the photoresistance, (4, fig. 1, page 1).
➤Check for correct fuel consumption.
➤Replace the nozzle (see fig. 10, page 6) and check the correct position of electrodes (fig. 11, page 7).
➤Clean the combustion head in the fuel exit area, on the diffuser disc.
➤Leave the burner working without interruptions for 10 min. and set rightly all the components stated in
this manual. Then carry out a combustion check verifying:
●Smoke temperature at the chimney ●Content of CO2(%) ●Content of CO (ppm)
●Smoke value according to opacity smokes index according to Bacharach scale.
D5023
0÷150s 0 ÷150s
5s
~ 12s~ 12s
Thermostat
Heating
Motor
Ignition transformer
Oil valve
Flame
Lock-out lamp
Lock-out due to
failure to light
B
Normal
B