Riello RLS 70 Quick start guide

20079454 (2) - 01/2014
Installation, use and maintenance instructions
安装、使用和维护手册
Dual fuel light oil/gas burners
双燃料轻油 / 燃气燃烧器
Two-stage operation
两段火运行
CODE - 代码 MODEL - 型号 TYPE - 类型
20079208 RLS 70 687 T1
20079215 RLS 100 688 T1
20079217 RLS 130 689 T1
GB
CN

Original instructions
说明书原文翻译

1
CONTENTS
DECLARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 2
TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electrical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Burner description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Packaging - Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Max. dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Standard equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Firing rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Test boiler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Commercial boilers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Boiler plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Blast tube length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Securing the burner to the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Choice of nozzles for the 1st and 2nd stage . . . . . . . . . . . . . . . . . .7
Nozzle assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Adjustments before first firing (light oil operation) . . . . . . . . . . . . . .7
Electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Electrical connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Light oil supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Hydraulic system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Pump priming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Burner calibration (light oil operation). . . . . . . . . . . . . . . . . . . . . . .12
Servomotor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Gas feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Gas train. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Gas pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Adjustment before firing (gas operation) . . . . . . . . . . . . . . . . . . . .16
Burner starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Burner firing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Burner calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
LPG - Propane - Butane operation. . . . . . . . . . . . . . . . . . . . . . . . .18
Burner operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Gas combustion checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
FAULTS - POSSIBLE CAUSES - SOLUTIONS . . . . . . . . . . . . . .22
ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
GB

2
Declaration of conformity in accordance with ISO / IEC 17050-1
Manufacturer: RIELLO S.p.A.
Address: Via Pilade Riello, 7
37045 Legnago (VR)
Product: Dual fuel light oil/gas burner
Model: RLS 70 - 100 - 130
These products are in compliance with the following Technical Standards:
EN 676
EN 267
EN 12100
and according to the European Directives:
MD 2006/42/EC Machine Directive
LVD 2006/95/EC Low Voltage Directive
EMC 2004/108/EC Electromagnetic Compatibility
The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001.
Legnago, 10.10.2013 Executive Director
RIELLO S.p.A. - Burner Department Research & Development Director RIELLO S.p.A. - Burner Department
Mr. G. Conticini Mr. R. Cattaneo

3
TECHNICAL DATA
(1) Reference conditions: Ambient temperature 20°C - Barometric pressure 1000 mbar - Altitude 100 m s.l.m.
(2 Upstream pressure of the gas train 1)(A)p.13 as indicated by EN676 Standard, with 0 mbar in the combustion chamber and at the maximum
burner output.
(3) Sound pressure measured in manufacturer's combustion laboratory, with burner operating on test boiler and at maximum rated output. The
sound power is evaluated, in line with the regulations, on a spherical surface centred on the burner and with a radius of 1 metre.
ELECTRICAL DATA
BURNER CATEGORIES
MODEL RLS 70 RLS 100 RLS 130
Output (1)
Delivery (1)
2nd stage kW
kg/h 465 - 817 39 - 69 698 - 1163 59 - 98 930 - 1512 78 - 130
min. 1st stage kW
kg/h 232 19 349 29,5 465 39
Fuel LIGHT OIL, viscosity at 20 °C: 6 mm2/s max (1,5 °E - 6 cSt)
NATURAL GAS: G20 (methane) - G21 - G22 - G23 - G25
GPL - G30 (propane) - G31 (butane)
Gas pressure at maximum delivery (2)
Gas: G20/G25/G31 mbar 7.4/10.6/9.4 11.5/17.0/13.1 14.1/12.1/18.8
Operation - Intermittent (min. 1 stop in 24 hours)
- Two-stage (high and low flame) and single-stage (all - nothing)
Nozzles number 2
Standard applications Boilers: water, steam, diathermic oil
Ambient temperatur °C 0 - 40
Combustion air temperature °C max 60
Pump delivery (at 12 bar)
pressure range
fuel temperatur
kg/h
bar
° C max
220
10 - 20
60
Noise levels (3) Sound pressure
Sound power dBA 74 85 77.5 89.5 80 91
MODEL RLS 70 RLS 100 RLS 130
Main electrical supply
Control circuit power supply 3 ~ 230/400V 50Hz 1N ~ 230V 50Hz
Fan motor IE2 rpm
Hz
V
W
A
2880
50
230 / 400
1100
4.3 - 2.5
2870
50
230 / 400
1500
5.9 - 3.4
2900
50
230 / 400
2200
7.9 - 4.6
Pump motor
Pump motor capacitor
rpm
Hz
V
W
A
µF
2700
50
230
550
3.6
25
Ignition transformer V1 - V2
I1 - I2 230 V - 2 x 5 kV 1,9 A - 30 mA
Absorbed electrical power W max 2000 2400 3200
Protection level IP 44
COUNTRY CATEGORY
IT - AT - GR - DK - FI - SE II2H3B / P
ES - GB - IE - PT II2H3P
NL II2L3B / P
FR II2Er3P
DE II2ELL3B /P
BE I2E(R)B, I3P
LU - PL II2E3B/P

4
BURNER DESCRIPTION (A)
1 Combustion head
2 Ignition electrodes
3 Screw for combustion head adjustment
4 Sleeve
5 Relay
6 Fan motor
7 Motor contactor and thermal cut-out with
reset button
8LEDPANEL
9 Terminal strip
10 Fairleads for electrical connections by
installer
11 Two switches:
- one “burner off - on”
- one for “1st - 2nd stage”
12 Control box with lock-out pilot light and lock-
out reset button
13 Flame inspection window
14 Minimum air pressure switch
(differential operating type)
15 Slide bars for opening the burner and
inspecting the combustion head
16 Safety solenoid valve
17 1st and 2nd stage valves
18 Gas pressure test point and head fixing
screw
19 Air pressure test point
20 Servomotor. When the burner is not operat-
ing 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.
21 Pump motor
22 Air gate valve
23 Air inlet to fan
24 Pump
25 Gas input pipework
26 Boiler mounting flange
27 Flame stability disk
28 Screw securing fan to sleeve
29 Cell UV
30 OIL/GAS selector
Two types of burner failure may occur:
Control Box Lock-out: if the control box 12)(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 7)(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 meas-
urements
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
1 - Gas train flange
1 - Flange gasket
4 - Flange fixing screws M 10 x 35
1 - Thermal insulation screen
4 - Screws to secure the burner flange to the
boiler: M 12 x 35
2 - Flexible hoses
2 - Nipples for flexible hoses with gasket
1 - KIT for LPG operation
1 - Label for LPG operation
1 - Instruction booklet
1 - Spare parts list
(A)
mm ABCkg
RLS 70 1405 1000 660 70
RLS 100 1405 1000 660 73
RLS 130 1405 1000 660 76
(1) Blast tube: short-long
mm ABCDE F(1) GH I LMNO
RLS 70 691 296 395 555 840 250-385 179 430 1161 214 134 221 2”
RLS 100 707 312 395 555 840 250-385 189 430 1161 214 134 221 2”
RLS 130 733 338 395 555 840 250-385 189 430 1161 214 134 221 2”
D1175
D36
D1176
(B)
(C)

5
FIRING RATES (A)
The burners can work in two ways: one-stage
and two-stage.
MAXIMUM OUTPUT must be selected in area
A.
In order to utilize also area B (RLS 130) it is nec-
essary to perform the calibration of the combus-
tion head as explained on page 8.
MINIMUM OUTPUT must not be lower than the
minimum limit shown in the diagram:
RLS 70 = 232 kW = 19.0 kg/h
RLS 100 = 349 kW = 29.5 kg/h
RLS 130 = 465 kW = 39.0 kg/h
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 8.
TEST BOILER (B)
The firing rates were set in relation to special
test boilers, according to EN 676 and EN 267
regulations.
Figure (B) indicates the diameter and length of
the test combustion chamber.
Example: Output 650 Mcal/h:
diameter 60 cm - length 2 m.
COMMERCIAL BOILERS
The burner/boiler combination does not pose
any problems if the boiler is CE type-approved
and its combustion chamber dimensions are
similar to those indicated in diagram (B).
If the burner must be combined with a commer-
cial boiler that has not been CE type-approved
and/or its combustion chamber dimensions are
clearly smaller than those indicated in diagram
(B), consult the manufacturer.
(A)
RLS 70
RLS 100
RLS 130
D1194
D715
(B)
Combustion chamber
pressure - mbar
Combustion chamber
pressure - mbar
Combustion chamber
pressure - mbar
Combustion chamber
lenght - m

6
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 10): RLS 70 RLS 100 RLS 130
• short 250 250 250
• long 385 385 385
For boilers with front flue passes 13) or flame
inversion chambers, protective fettling in refrac-
tory material 11) must be inserted between the
boiler fettling 12) and the blast tube 10).
This protective fettling must not compromise the
extraction of the blast tube.
For boilers having a water-cooled front the
refractory fettling 11)-12)(B) is not required
unless it is expressly requested by the boiler
manufacturer.
SECURING THE BURNER TO THE BOILER
(B)
Detach the combustion head from the burner,
fig. (B):
- Disconnect the oil pipes by unscrewing the two
connectors 6).
- Loosen the 4 screws 3) and remove the cover 1).
- Remove the screws 2) from the slide bars 5).
- Remove the 2 screws 4) and pull the burner
back on slide bars 5) by about 100 mm.
- Disconnect the electrode wires and then pull
the burner completely off the slide bars.
COMBUSTION HEAD CALIBRATION
At this point check, for model RLS 130, whether
the maximum delivery of the burner in 2nd stage
operation is contained in area A or in area B of
the firing rate. See page 5.
If it is in area A then no operation is required.
If, on the other hand, it is in area B:
- unscrew the screws 1)(C) and disassemble
the blast tube 2).
- Move the fixing of the rod 3)(C) from position
A to position B, thereby causing the shutter
4) to retract.
- Now refit the blast tube 2)(C) and the screws 1).
Once this operation has been carried out (if it
was required):
- secure the flange 9)(B) to the boiler plate,
interposing the thermal insulating screen
7)(B) supplied with the burner.
- Use the 4 screws, also supplied with the unit,
after first protecting the thread with an anti-
locking product.
The seal between burner and boiler
must be airtight.
mm A B C
RLS 70 185 275-325 M 12
RLS 100 195 275-325 M 12
RLS 130 195 275-325 M 12
(A)
(B)
(C)
D455
D1172
D1192
WARNING

7
CHOICE OF NOZZLES FOR 1ST AND 2ND
STAGE
The burner complies with the emission require-
ments of the EN 267 standard.
In order to guarantee that emissions do not vary,
recommended and/or alternative nozzles speci-
fied by Riello in the Instruction and warning
booklet should be used.
Both nozzles must be chosen from among those
listed in Table (A).
The first nozzle determines the delivery of the
burner in the 1st stage.
The second nozzle works together with the 1st
nozzle to determine the delivery of the burner in
the 2nd stage.
The deliveries of the 1st and 2nd stages must
be contained within the value range indicated on
page 3.
Use nozzles with a 60° spray angle at the rec-
ommended pressure of 12 bar.
The two nozzles usually have equal deliveries.
NOZZLE ASSEMBLY
Remove screw 1)(B) and extract the internal
part 2)(B).
Fit two nozzles with the box spanner 1)(C) (16
mm), after having removed the plastic plugs
2)(C), fitting the spanner through the central
hole in the flame stability disk or loosen screws
1)(D), remove disk 2)(D) and replace the noz-
zles using the wrench 3)(D).
Do not use any sealing products such as gas-
kets, sealing compound, or tape. Be careful to
avoid damaging the nozzle sealing seat. The
nozzles must be screwed into place tightly but
not to the maximum torque value provided by
the wrench.
The nozzle for the 1st stage of operation is the
one lying beneath the firing electrodes.
It is advisable to replace the nozzle
once a year during periodical mainte-
nance.
The use of nozzles other than those
specified by Riello S.p.A. and inade-
quate regular maintenance may re-
sult into emission limits non-
conforming to the values set forth by
the regulations in force, and in ex-
tremely serious cases, into potential
hazards to people and objects.
The manufacturing company shall not
be liable for any such damage arising
from nonobservance of the require-
ments contained in this manual.
Make sure that the electrodes are
positioned as shown in figure (E).
WARNING
CAUTION
(A)
GPH kg/h kW
12 bar
10 bar 12 bar 14 bar
5.00
5.50
6.00
6.50
7.00
7.50
8.00
8.30
8.50
9.00
9.50
10.0
10.5
11.0
12.0
12.3
13.0
13.8
14.0
15.0
15.3
16.0
17.0
19.2
21.1
23.1
25.0
26.9
28.8
30.8
31.9
32.7
34.6
36.5
38.4
40.4
42.3
46.1
47.3
50.0
53.1
53.8
57.7
58.8
61.5
65.4
21.2
23.3
25.5
27.6
29.7
31.8
33.9
35.2
36.1
38.2
40.3
42.4
44.6
46.7
50.9
52.2
55.1
58.5
59.4
63.6
64.9
67.9
72.1
23.1
25.4
27.7
30.0
32.3
34.6
36.9
38.3
39.2
41.5
43.8
46.1
48.4
50.7
55.3
56.7
59.9
63.3
64.5
69.2
70.5
73.8
78.4
251.4
276.3
302.4
327.3
352.3
377.2
402.1
417.5
428.2
453.1
478.0
502.9
529.0
553.9
603.7
619.1
653.5
693.8
704.5
754.3
769.7
805.3
855.1
D1122
(B)
(C) (D)
D1146 D1147
(E) D1124
WARNING

8
Refit the burner to the slide bars 3)(C) at
approximately 100 mm from the sleeve 4) -
burner positioned as shown in fig. (B)p.6 - insert
the ignition electrode cables and then slide the
burner up to the sleeve so that it is positioned as
shown in fig. (C).
Refit screws 2)(C) on slide bars 3).
Secure the burner to the sleeve by tightening
screws 1).
Connect the oil pipes again by screwing on the
two connectors 6)(B)p.6.
ADJUSTMENTS BEFORE FIRST FIRING
(light oil operation)
• Combustion head setting
The setting of the combustion head depends
exclusively on the delivery of the burner in the
2nd stage.
Turn screw 5)(A) until the notch shown in dia-
gram (B) is level with the front surface of flange.
Example: Burner RLS 100
2nd stage burner delivery = 72 kg/h.
If diagram (B) is consulted it is clear that for this
delivery, the combustion head must be adjusted
using notch 3, as shown in fig. (B).
• Pump adjustment
No settings are required for the pump, which is
set to 12 bar by the manufacturer. This pressure
must be checked and adjusted (if required) after
the burner has been ignited.
The only operation required in this phase is the
application of a pressure gauge on the appropri-
ate pump attachment.
• Fan gate adjustment
The first time the burner is fired leave the factory
setting unchanged for both 1st stage and 2nd
stage operation.
When fitting the burner on the two
slide bars, it is advisable to gently
draw out the high tension cables
until they are slightly stretched.
SETTING THE COMBUSTION HEAD
(B)
No. notches
Light oil delivery in 2nd stage - kg/h
D1149
D1193
D1173
(C)
(A)
WARNING