Burner Description; Packaging - Weight; Overall Dimensions; Standard Equipment - Riello RS 34 MZ Instrucciones De Instalación, Uso Y Mantenimiento

(A)
mm A B
RS 34 MZ 1000 500 485
RS 44 MZ 1000 500 485
(B)
(C)
mm A D E
RS 34 MZ 442 422 508 216-351 140
RS 44 MZ 442 422 508 216-351 152
(1) Blast tube: short - long
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D3828
D7557
C kg
32
33
F
H I L O
(1)
305 138 780
305 138 780
BURNER DESCRIPTION (A)
1 Combustion head
2 Ignition electrode
3 Screw for combustion head adjustment
4 Minimum air pressure switch
(differential operating type)
5 Flame sensor probe
6 Air pressure test point
7 Gas pressure test point and head fixing
screw
8 Screws securing fan to pipe coupling
9 Guides for opening the burner and inspecting
the combustion head
10 Servomotor controlling the gas butterfly
valve and of air damper (by means of a vari-
able profile cam mechanism).
When the burner is stopped, the air damper
will be completely closed to reduce heat loss
due to the flue draught, which tends to draw
air from the fan air suction inlet.
11 Areas for passage of electric cables
12 Air inlet to fan
13 Gas input pipework
14 Gas butterfly valve
15 Boiler mounting flange
16 Flame stability disk
17 Flame inspection window
18 Two switches:
- one "burner off - on"
- one for "1st - 2nd stage operation"
19 Motor contact maker and thermal cut-out
with reset button (RS 44 MZ)
20 Motor capacitor (RS 34 MZ)
21 Control box with lockout pilot light and reset
button
22 Sockets for electrical wiring
23 Air damper
24 Plug-socket on ionisation probe cable
25 Guide extensions (long head version)
Two types of burner lockout may occur:
D3829
• CONTROL BOX LOCKOUT:
if the control box 21)(A) pushbutton lights up, it
indicates that the burner is in lockout.
To reset, press the push button.
• MOTOR LOCKOUT (RS 44 MZ):
three-phase electrical supply; to reset, press
the thermal cut-out switch 19)(A).
PACKAGING - WEIGHT (B) - Approximate
measurements
• The burners are shipped in cardboard boxes
with the overall dimensions shown in tab. (B).
• The weight of the burner complete with pack-
aging is indicated in tab. (B).
OVERALL DIMENSIONS (C)
Approximate measurements
The overall dimensions of the burner are given
in (C).
Bear in mind that, in order to inspect the com-
bustion head, the burner must be pulled back.

STANDARD EQUIPMENT

D88
1 - Gas train flange
1 - Flange gasket
4 - Flange fixing screws M 8 x 25
1 - Thermal insulation screen
4 - Screws to secure the burner flange to the
boiler: M 8 x 25
3 - Plugs for electrical connection
(RS 34-44 MZ single-phase)
4 - Plugs for the electrical connection
(RS 44 MZ three-phase)
1 - Instruction booklet
D3831
1 - Spare parts list
N V M
84 177 1"
1/2
84 177 1"
1/2
3