Technical Data - Riello Burners MB 412/2 Manuel D'entretien

3.3

Technical data

Model
Max. power supply pressure
Protection level
- without valve leak detection control device
- with valve leak detection control device
Ambient temperature
Electromagnetic valve
Voltage/frequency
- without valve leak detection control device
- with valve leak detection control device
Output/absorption
Anti-dust device
3.4 Components
The Multibloc consists of:
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Gas pressure switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
3.5 Description
7
8
10
3
1
1 Flange
2 Pressure test point (MB 415-420/2)
3 Flange fastening screws
4 Stabiliser adjustment
5 Brake adjustment
6 Delivery adjustment ring nut 2
7 Ring nut locking screws (not sealed)
20049406
Technical description
50 VA ~(AC) 230 V, 20 °C
Filter with 0.8 mm mesh; it is possible to change the filter without dismantling the
structure.
5
6
13
4
9
8
12
20050112
14
nd
stage
MB 412 - 415
360 mbar (36 kPa)
IP 54
IP 4X
-15°C up to + 70 °C
DIN EN 161, class A, group 2
~ (AC) 230 V - 15 % + 10 %, 50-60 Hz
~ (AC) 230 V - 15 % + 10 %, 50 Hz
Pressure stabiliser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Quick opening safety valve . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Slow opening adjustment valve 1
4
2
8 Minimum gas pressure switch
9 Delivery adjustment ring nut 1
10 Pressure test point (MB 412/2)
11 Valve leak detection control device (if present)
st
12 Coil 1 stage
nd
13 Coil 2 stage
14 Filter
4 GB
MB 420
80 VA ~(AC) 230 V, 20 °C
st nd
and 2 stage . . . . . . . No. 1
5
6
13
9
11
1
3
st
stage
Tab. B
Fig. 1