Burner Description; Packaging-Weight; Max. Dimensions; Standard Equipment - Riello Burners RL 34 MZ Instrucciones De Instalación, Funcionamiento Y Mantenimiento

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8
7
6
9
16
5
19
20
4
18
24
17
(A)
mm
A
B
RL 34 MZ
1000
500
RL 44 MZ
1000
500
(B)
E
O
mm
A
D
E
RL 34 MZ 442 422 508 216 - 351 140 305 138
RL 44 MZ 442 422 508 216 - 351 152 305 138
(1) Blast tube: short-long
12
11
D3864
3
15
23
21
D3865
10
22
C
kg
485
32
485
33
L
F
F
O
H
GB
L
(1)
780 - 915
780 - 915
2
1
13
14
D88
A
D3937
(1)
(C)
3
BURNER DESCRIPTION (A)
1 Ignition electrodes
2 Combustion head
3 Screw for combustion head adjustment
4 Photocell for flame presence control
5 Screw for fixing fan to flange
6 Slide bars for opening the burner and
inspecting the combustion head
7 Hydraulic cylinder for regulation of the air
gate valve in 1st and 2nd stage positions.
When the burner is not operating the air gate
valve is fully closed in order to reduce heat
dispersion from the boiler due to the flue
draught which draws air from the fan suction
inlet.
8 1st and 2nd stage valve assembly
9 Pump
10 Plate prearranged to drill 4 holes for the pas-
sage of hoses and electrical cables.
11 Air inlet to fan
12 Fan pressure test point
13 Boiler mounting flange
14 Flame stability disk
15 Flame inspection window
16 Extensions for slide bars 6)
17 Motor contactor and thermal RELAY reset
button (RL 44 three-phase MZ )
18 Motor capacitor
(RL 34 MZ - RL 44 MZ single-phase)
19 Control box with lockout pilot light and lock-
out reset button
20 Two switches:
- one "burner off - on"
- one for "1st - 2nd stage operation"
21 Sockets for electrical connections
22 Air damper
23 Pump pressure adjustment
24 Plate prearranged to drill 2 holes for the pas-
sage of hoses.
Two types of burner failure may occur:
Control box lockout: if the control box 19)(A)
pushbutton (red led) lights up, it indicates that
the burner is in lockout.
To reset, hold the pushbutton down for between
1 and 3 seconds.
Motor lockout (RL 44 MZ three-phase): release
by pressing the pushbutton on thermal relay
17)(A).

PACKAGING-WEIGHT

(B)
measurements
The burners are shipped in cardboard boxes
with the maximum dimensions shown in
table (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 burner, without
casing, when open is given by measurement O.

STANDARD EQUIPMENT

2 - Flexible hoses
2 - Gaskets for flexible hoses
2 - Nipples for flexible hoses
1 - Thermal insulation screen
2 - Extensions 16)(A) for slide bars 6)(A)(for
model with 351 mm blast tube)
4 - Screws to secure the burner flange to the
boiler: M 8 x 25
2 - Plugs for electrical connections
(RL 34 MZ and 44 MZ single-phase)
3 - Plugs for the electrical connection
(RL 44 MZ three-phase)
1 - Instruction booklet
1 - Spare parts list
-
approximate

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