Burner Description; Packaging - Weight; Max Dimensions; Standard Equipment - Riello RS 34/M MZ Instrucciones De Instalación, Funcionamiento Y Mantenimiento

25 10 26 11
20051363
(A)
mm A B
RS 34/M MZ 1000 500
RS 44/M MZ 1000 500
(B)
(C)
mm A D
RS 34/M MZ 442 422 508 216-351 140
RS 44/M MZ 442 422 508 216-351 152
(1) Blast tube: short-long
7
6
15
14
13
12
D3830
C kg
485 32
485 33
F
E H I L
(1)
305 138
305 138
16
D3829
D88
D3831
O N V M
780 84 177 1"
1/2
780 84 177 1"
1/2
4
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 socket
7 Gas pressure test point and head fixing
screw
8 Screws securing fan to sleeve
9 Slide bars for opening the burner and
inspecting the combustion head
10 Servomotor controlling the gas butterfly
valve and the air damper (by means of a var-
iable 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 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 disc
17 Flame inspection window
18 Power switch for different operations:
automatic - manual - off
Button for:
power increase - power reduction
19 Motor contact maker and thermal cutout with
reset button (RS 44/M MZ three-phase)
20 Motor capacitor (RS 34-44/M MZ single-
phase)
21 Control box with lockout pilot light and lock-
out reset button
22 Sockets for electrical connection
23 Air damper
24 Plug-socket on ionisation probe cable
25 Guide extensions (long head version)
26 4-pole socket cover (see electrical panel
appendix)
Two types of burner failure may occur:
• 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/M MZ three-
phase):
three-phase electrical supply; to unblock,
press the thermal cutout switch 19)(A).
PACKAGING - WEIGHT (B) - Approximate
measurements
• The burners are shipped in cardboard boxes
with the maximum dimensions shown in
tab. (B).
• The weight of the burner complete with pack-
aging is indicated in tab. (B).
MAX. DIMENSIONS (C) - approximate meas-
urements
The maximum 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

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