Installation; Boiler Plate; Blast Tube Length; Securing The Burner To The Boiler - Riello RLS 190/M MZ Installation, Use And Maintenance Instructions

mm A
RLS 190/M MZ 230 325-368
(A)
(B)
GPH
10 bar
11.0
12.0
13.0
13.5
14.0
15.0
15.5
16.0
17.0
17.5
18.0
19.0
19.5
20.0
21.5
22.0
24.0
26.0
28.0
(C)
(D)
B C
M 16
kg/h
12 bar 14 bar
42.3 46.7 50.7
46.1 50.9 55.3
50.0 55.1 59.9
51.7 57.0 62.0
53.8 59.4 64.5
57.7 63.6 69.2
59.3 65.5 71.1
61.5 67.9 73.8
65.4 72.1 78.4
67.3 74.2 80.7
69.2 76.4 83.0
73.0 80.6 87.6
75.0 82.7 89.9
84.8 92.2
76.9
82.7 91.2 99.1
84.6 93.3 101.4
92.2 101.8 110.6
99.9 110.3 119.9
107.6 118.8 129.1
D455
D3171
kW
12 bar
553.9
603.7
653.5
681.4
704.5
754.3
782.3
805.3
855.1
880.0
906.1
956.0
980.9
1005.8
1081.7
1106.6
1207.3
1308.2
1409.0
D3172
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 12): RLS 190/M MZ
• short 418
• long 548
For boilers with front flue passes 15) or flame
inversion chambers, protective fettling in refrac-
tory material 13) must be inserted between the
boiler fettling 14) and the blast tube 12).
This protective fettling must not compromise the
extraction of the blast tube.
For boilers having a water-cooled front the
refractory fettling 13)-14)(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)
- Disengage the articulated coupling 7) from the
graduated sector 8).
- 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.
Secure the sleeve with flange 11)(B) to the
boiler plate, interposing the thermal insulating
screen 9)(B) supplied with the burner. Use the 4
screws, also supplied with the unit, after first
protecting the thread with an anti-locking prod-
uct. The seal between burner and boiler must be
airtight.
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.
It is advisable to replace the nozzle
once a year during periodical mainte-
nance.
WARNING
The use of nozzles other than those
specified by Riello S.p.A. and inade-
quate regular maintenance may re-
CAUTION
sult into emission
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.
Both nozzles must be chosen from among those
listed in Table (C).
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.
limits non-