Riello RL 70/M Quick start guide

GB
Installation, use and maintenance instructions
Instrucciones de instalación, funcionamiento y mantenimiento
Instruções de instalação, funcionamento e manutenção
2916208 (5) - 05/2016
Light oil burners
E
Quemadores de gasóleo
P
Queimadores a gasóleo
Progressive two-stage or modulating operation
Funcionamiento a dos llamas progresivas o modulant
Funcionamento duas chamas progressivas ou modulante
CODE - CÓDIGO MODEL - MODELO TYPE - TIPO
3477080 RL 70/M 669 T80
3477081 RL 70/M 669 T80
3477280 RL 100/M 670 T80
3477281 RL 100/M 670 T80
3477480 RL 130/M 671 T80
3477481 RL 130/M 671 T80

GB
1
CONTENTS
TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2
Variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Output modulation regulator kit . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Burner description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Packaging - Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Max. dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Standard equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Firing rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Boiler plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Blast tube length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Securing the burner to the boiler . . . . . . . . . . . . . . . . . . . . . . . . . 5
Choice of nozzle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Nozzle assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Combustion head setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Hydraulic system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Servomotor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Oil pressure switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Burner firing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Burner calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Burner operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Final checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Fault - Probable cause - Suggested remedy . . . . . . . . . . . . . . . 15
N.B.
Figures mentioned in the text are identified as follows:
1)(A) =part 1 of figure A, same page as text;
1)(A)p.3 =part 1 of figure A, page number 3.
Declaration of conformity in accordance with ISO / IEC 17050-1
Manufacturer: RIELLO S.p.A.
Address: Via Pilade Riello, 7
37045 Legnago (VR)
Product: Light oil burners
Model: RL 70/M
RL 100/M
RL 130/M
These products are in compliance with the following Technical Standards:
EN 267
EN 12100
and according to the European Directives:
MD 2006/42/EC Machine Directive
LVD 2014/35/UE Low Voltage Directive
EMC 2014/30/UE Electromagnetic Compatibility
The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001.
Manufacturer's Declaration
RIELLO S.p.A. declares that the following products comply with the NOx emission limits specified by German standard “1. BImSchV release
26.01.2010”.
Product Type Model Power
Light oil burner 669 T80 RL 70/M 261-1043 kW
670 T80 RL 100/M 332-1482 kW
671 T80 RL 130/M 498-1779 kW
Legnago, 01.12.2015 Executive General Manager
RIELLO S.p.A. - Burner Department
Research & Development Director
RIELLO S.p.A. - Burner Department
Mr. U. Ferretti Mr. F. Comencini

2
TECHNICAL DATA
GB
MODEL RL 70/M RL 100/M RL 130/M
TYPE 669 T80 670 T80 671 T80
OUTPUT (1) MAX. kW 474 - 1043
408 - 897
40 - 88
711 - 1482
612 - 1275
60 - 125
948 - 1779
816 - 1530
80 - 150
Mcal/h
kg/h
MIN. kW 261 - 474
224 - 408
22 - 40
332 - 711
286 - 612
28 - 60
498 - 948
428 - 816
42 - 80
Mcal/h
kg/h
FUEL LIGHT OIL
- net calorific value kWh/kg
Mcal/kg
11.8
10.2 (10.200 kcal/kg)
- density kg/dm30.82 - 0.85
- viscosity at 20 °C mm2/s max 6 (1,5 °E - 6 cSt)
OPERATION • On-Off (min 1 stop each 24 hours). These burners are also fiitted for the
continuous operation, if they are equipped with the control box LANDIS
type LOK 16.250 A27 (interchangeable with the burner control box
LANDIS LAL 1.25).
• Progressive two-stage (modulating by Kit)
NOZZLE number 1 (nozzle with return)
STANDARD APPLICATIONS Boilers: water, steam, diathermic oil
AMBIENT TEMPERATURE °C 0 - 40
COMBUSTION AIR TEMPERATURE °C max 60
ELECTRICAL SUPPLY Ph/V/Hz 3/220-380/60
AUXILIARY CIRCUITS SUPPLY Ph/V/Hz 1N/230/60
ELECTRIC MOTOR rpm
W
V
Hz
A
3475
1100
208/380
60
4,6/2,7
3500
2200
208/380
60
8,1/4,7
3500
2200
208/380
60
8,1/4,7
IGNITION TRANSFORMER V1 - V2
I1 - I2
230 V - 2 x 5 kV
1.9 A - 30 mA
PUMP delivery (at 20 bar)
pressure range
fuel temperature
kg/h
bar
° C max
195
10 - 21
90
ELECTRICAL POWER CONSUMPTION W max 1800 3000 3000
ELECTRICAL PROTECTION IP 44
dBA 75
86
77
88
78.5
89.5
(1) Reference conditions: Ambient temperature 20°C - Barometric pressure 1000 mbar - Altitude 100 m a.s.l.
(2) Sound pressure measured in manufacturer's combustion laboratory, with burner operating on test boiler and at maximum rated output. The
sound power is measured with the “Free Field” method, as per EN 15036, and according to an “Accuracy: Category 3” measuring accuracy, as
set out in EN ISO 3746.
VARIANTS
BURNER RL 70/M RL 100/M RL 130/M
Blast tube length mm 272 385 272 385 272 385
Code 3477080 3477081 3477280 3477281 3477480 3477481
OUTPUT MODULATION REGULATOR KIT
Two components should be ordered:
• output regulator to install on the burner;
PARAMETER TO BE CHECKED PROBE POWER REGULATOR
Range Type Code Type Code
Temperature - 100...+ 500 °C PT 100 3010110 RWF40 3010212
Pressure 0...2,5 bar
0...16 bar
Probe with output
4...20 mA
3010213
3010214
• probe to install on the boiler.
Noise levels (2) Sound pressure
Sound power

(A)
(B)
mm A B C kg
RL 70/M 1150 600 792 65
RL 100/M 1150 600 792 68
RL 130/M 1150 600 792 71
(1) Blast tube: short - long
mm ABCDE F (1) GH I (1)
RL 70/M 663 296 367 555 680 272 - 385 179 430 951 - 1086
RL 100/M 690 312 367 555 680 272 - 385 179 430 951 - 1086
RL 130/M 705 338 367 555 680 272 - 385 189 430 951 - 1086
(C)
D1216
D36
D1217
3
BURNER DESCRIPTION (A)
1 Ignition electrodes
2 Combustion head
3 Screw for combustion head adjustment
4 Screw for fixing fan to flange
5 Oil pressure switch
6 Pressure gauge for pressure on nozzle
return
7Pump
8Nozzle holder
9 Air gate valve
10 Fan pressure test point
11 Boiler mounting flange
12 Flame stability disk
13 Servomotor, provides adjustment of fuel
delivery regulator and of air gate valve.
When the burner is not operating the air gate
valve is fully closed in order to reduce to a
minimum heat dispersion from the boiler due
to the flue draught which draws air from the
fan suction inlet.
14 Slide bars for opening the burner and
inspecting the combustion head
15 Photocell for flame presence control
16 Electrical motor
17 Extensions for slide bars 14)
18 Ignition transformer
19 Motor contactor and thermal cut-out with
reset button
20 Power switch for different operations:
automatic - manual - off.
Button for:
power increase - power reduction.
21 Bracket for mounting power regulator
RWF40
22 Terminal strip
23 Fairleads for electrical connections by
installer
24 Control box with lock-out pilot light and lock-
out reset button
25 Flame inspection window
26 Valve assembly with pressure regulator on
nozzle return
Two types of burner failure may occur:
Control Box Lock-out: if the control box 24)(A)
pushbutton lights up, it indicates that the burner
is in lock-out.
To reset, press the pushbutton.
Motor trip: release by pressing the pushbutton
on thermal relay 19)(A).
PACKAGING - WEIGHT (B) - Approximate
measurements
• The burners stands on a wooden base which
can be lifted by fork-lifts. Outer dimensions of
packaging are indicated in (B).
• The weight of the burner complete with pack-
aging is indicated in Table (B).
MAX. DIMENSIONS (C) - Approximate mea-
surements
The maximum dimensions of the burner are
given in (C).
Bear in mind that inspection of the combustion
head requires the burner to be opened and the
rear part withdrawn on the slide bars.
The maximum dimension of the burnerwhen
open, without casing, is give in measurement I.
STANDARD EQUIPMENT
2 - Flexible hoses
2 - Gaskets for flexible hoses
2 - Nipples for flexible hoses
1 - Thermal insulation screen
4 - Extensions 17)(A) for slide bars 14)(A)
(for models with 385 mm blast tube)
4 - Screws to secure the burner flange to the
boiler: M 12 x 35
1 - Instruction booklet
1 - Spare parts list

(A)
mbar mbar mbar
D1218
4
FIRING RATES (A)
During operation, burner output varies between:
•MINIMUM OUTPUT: area A;
•MAXIMUM OUTPUT: area B (and C for model
RL 130/M).
Graphs (A):
Horizontal axis : Burner output
Vertical axis : Combustion chamber pres-
sure
The work point may be found by plotting a verti-
cal line from the desired delivery and a horizon-
tal line from the pressure in the combustion
chamber. The intersection of these two lines is
the work point which must lie within area A, for
MIN output, and within area B, for MAX output.
In order to utilize also area C (RL 130/M) it is
necessary to perform the calibration of the com-
bustion head as explained on page 5.
Important:
The FIRING RATE area values have been
obtained considering a surrounding temperature
of 20°C, and an atmospheric pressure of 1000
mbar (approx. 100 m above sea level) and with
the combustion head adjusted as shown on
page 6.

(A)
(B)
mm A B C
RL 70/M 185 275-325 M 12
RL 100/M 185 275-325 M 12
RL 130/M 195 275-325 M 12
(C)
D455
D1219
D690
5
INSTALLATION
BOILER PLATE (A)
Drill the combustion chamber locking plate as
shown in (A). The position of the threaded holes
can be marked using the thermal screen sup-
plied with the burner.
BLAST TUBE LENGTH (B)
The length of the blast tube must be selected
according to the indications provided by the
manufacturer of the boiler, and in any case it
must be greater than the thickness of the boiler
door complete with its fettling. The range of
lengths available, L (mm), is as follows:
Blast tube 9): RL 70/M RL 100/M RL 130/M
• short 272 272 272
• long 385 385 385
For boilers with front flue passes 12) or flame
inversion chambers, protective fettling in refrac-
tory material 10) must be inserted between the
boiler fettling 11) and the blast tube 9).
This protective fettling must not compromise the
extraction of the blast tube.
For boilers having a water-cooled front the
refractory fettling 10)-11)(B) is not required
unless it is expressly requested by the boiler
manufacturer.
SECURING THE BURNER TO THE
BOILER (B)
Disassemble the blast tube 9) from the burner 6)
by proceeding as follows:
- Loosen the four screws 3) and remove the
cover 1).
- Remove the screws 2) from the two slide bars
5).
- Remove the two screws 4) fixing the burner 6)
to the flange 7).
- Withdraw the blast tube 9) complete with
flange 7) and slide bars 5).
COMBUSTION HEAD CALIBRATION
At this point check, for model RL 130/M,
whether the maximum delivery of the burner is
contained in area B or in area C of the firing
rate. See page 4.
If it is in area B then no operation is required.
If, on the other hand, it is in area C:
- Unscrew the screws 1)(C) and disassemble
the blast tube 5);
- Unscrew the screws 3) and remove the shutter
4);
- Tighten the screws 3) on the rod 2);
- Now refit the blast tube 5) and the screws 1).
Once this operation has been carried out (if it
was required), secure flange 7)(B) to the boiler
plate interposing the supplied gasket 8)(B). Use
the 4 screws provided after having protected the
thread with antiscruffing products.
The burner-boiler seal must be airtight.

(A)
(C)(B)
(D)
(E)
N° Notches
Max light oil delivery kg/h
(F)
D1221
D856
D462
D1223
20119192
20119193
6
CHOICE OF NOZZLE (A)
See diagram (C)page 11.
In case an intermediate delivery between the
two values indicated in the diagram (C)p. 11 is
required, a nozzle with higher delivery must be
chosen. Delivery reduction will be obtained by
means of the pressure regulator.
RECOMMENDED NOZZLES:
Type A3 or A4 Bergonzo nozzles - 45° angle
NOZZLE ASSEMBLY
At this stage of installation the burner is still dis-
assembled from the blast tube; it is therefore
possible to fit the nozzle with the box spanner
1)(A), fitting the spanner through the central
hole in the flame stability disk. Do not use any
sealing products such as gaskets, sealing com-
pound, or tape. Be careful to avoid damaging
the nozzle sealing seat.
Make sure that the electrodes are positioned as
shown in Figure (B).
Finally remount the burner 3)(C) on the slide
bars 2) and slide it up to the flange 5), keeping it
slightly raised to prevent the flame stability disk
from pressing against the blast tube.
Tighten the screws 1) on the slide bars 2) and
screws 4) fixing the burner to the flange.
If it proves necessary to change a nozzle with
the burner already fitted to the boiler, proceed
as outlined below:
- Pull back the burner on its slide bars as shown
in fig. (B)p.5.
- Remove the nuts 1)(D) and the disk 2)
- Use spanner 3)(D) to change the nozzles.
COMBUSTION HEAD SETTING
The setting of the combustion head depends
exclusively on the maximum burner delivery at
which it will be operating.
Turn screw 4)(E) until the notch shown in dia-
gram (F) is level with the front surface of flange
5)(E).
Example:
RL 70/M, maximum light oil delivery = 50 kg/h
Diagram (F) indicates that for a delivery of 50
kg/h the RL 70/M Model requires the combus-
tion head to be set to approx. three notches, as
shown in Figure (E).

(A)
+ H
- H
(m)
L (m)
Ø (mm)
12 14 16
+ 4,0 71 138 150
+ 3,0 62 122 150
+ 2,0 53 106 150
+ 1,0 44 90 150
+ 0,5 40 82 150
0 36 74 137
- 0,5 32 66 123
- 1,0 28 58 109
- 2,0 194281
- 3,0 102653
- 4,0 - 10 25
(B)
D701
D1224
7
HYDRAULIC SYSTEM
FUEL SUPPLY
Double-pipe circuit (A)
The burner is equipped with a self-priming pump
which is capable of feeding itself within the limits
listed in the table at the side.
The tank higher than the burner A
Distance "P" must not exceed 10 meters in
order to avoid subjecting the pump's seal to
excessive strain; distance "V" must not exceed
4 meters in order to permit pump self-priming
even when the tank is almost completely empty.
The tank lower than the burner B
Pump depression values higher than 0.45 bar
(35 cm Hg) must not be exceeded because at
higher levels gas is released from the fuel, the
pump starts making noise and its working life-
span decreases.
It is good practice to ensure that the return and
suction lines enter the burner from the same
height; in this way it will be less probable that
the suction line fails to prime or stops priming.
The loop circuit
A loop circuit consists of a loop of piping depart-
ing from and returning to the tank with an auxil-
iary pump that circulates the fuel under
pressure. A branch connection from the loop
goes to feed the burner. This circuit is extremely
useful whenever the burner pump does not suc-
ceed in self-priming because the tank distance
and/or height difference are higher than the val-
ues listed in the Table.
Key
H = Pump/foot valve height difference
L = Piping length
Ø = Inside pipe diameter
1 = Burner
2=Pump
3=Filter
4 = Manual on/off valve
5 = Suction line
6 = Foot valve
7 = Rapid closing manual valve remote con-
trolled (only Italy)
8 = On/off solenoid valve (only Italy)
9 = Return line
10 = Check valve (only Italy)
HYDRAULIC CONNECTIONS (B)
The pumps are equipped with a by-pass that
connects return line with suction line. The
pumps are installed on the burner with the by-
pass closed by screw 6)(B)p.10.
It is therefore necessary to connect both hoses
to the pump.
The pump will break down immediately if it is run
with the return line closed and the by-pass
screw inserted.
Remove the plugs from the suction and return
connections of the pump.
Insert the hose connections with the supplied
seals into the connections and screw them
down.
Take care that the hoses are not stretched or
twisted during installation.
Install the hoses where they cannot be stepped
on or come into contact with hot surfaces of the
boiler.
Now connect the other end of the hoses to the
suction and return lines by using the supplied
nipples.

8
ELECTRICAL SYSTEM
RL 70/M
(A)
(B)
(C)
RL 100/M - RL 130/M
D1187
D1188
D3146
D1225
RL 70/M
RL 100/M - RL 130/M
ELECTRICAL SYSTEM as set up by the
manufacturer
LAYOUT (A) - (B)
Burners RL 70/M - RL 100/M - RL 130/M
•Models RL 70-100-130/M leave the factory
preset for 380V power supply.
•If 220V power supply is used, change the
motor connection from star to delta and
change the setting of the thermal cut-out as
well.
Key to Layout (A) - (B)
CMV - Motor contactor
LAL 1.25 - Control box
FR - Photocell
MB - Terminal strip
MV - Fan motor
PO - Oil pressure switch
RT - Thermal cut-out
S1 - Switch for following operations :
MAN = manual
AUT = automatic
OFF
S2 - Button for :
- = power reduction
+ = power increase
SM - Servomotor
TA - Ignition transformer
TB - Burner ground (earth) connection
VM - Delivery pump valve
VS - Delivery pump valve (safety valve)
VS1 - Safety valve on return
VU - Valve on nozzle return
ELECTRICAL CONNECTIONS 
set by installer
Use flexible cables according to regulation EN
60 335-1:
• if in PVC boot, use at least HO5 VV-F
• if in rubber boot, use at least H05 RR-F.
All the cables to be connected to the burner ter-
minal strip 8)(B) must be routed through the fair-
leads.
The fairleads can be used in various ways. One
example is given below:
RL 70/M
1- Pg 13,5 Three-phase power supply
2- Pg 11 Single-phase power supply
3- Pg 11 Control device TL
4- Pg 9 Control device TR or probe
(RWF40)
5- Pg 9 Set up for faird lead
6- Pg 11 Set up for faird lead
7- Pg 13,5 Set up for faird lead
RL 100/M - RL 130/M
1- Pg 13,5 Three-phase power supply
2- Pg 11 Single-phase power supply
3- Pg 11 Control device TL
4- Pg 13,5 Control device TR or probe
(RWF40)
5- Pg 9 Set up for faird lead
6- Pg 11 Set up for faird lead