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Idiomas disponibles
ALPA 31 BS 60
4.3 Plumbing circuit
10
221
114
278
56
fig. 30 - Plumbing circuit
7
Gas inlet
8
Domestic hot water outlet
9
Cold water inlet
10
System delivery
11
System return
14a
Safety valve 3 bar (heating)
14b
Safety valve 9 bar (hot water tank)
16
Fan
19
Combustion chamber
32
Heating circulating pump
40
DHW expansion tank
43
Air pressure switch
44
Gas valve
56
Expansion tank
74
System filling cock
97
Magnesium anode
114
Water pressure switch
130
Hot water tank circulating pump
179
Non-return valve
180
Hot water tank
192
Recirculation
221
Bypass cock
233
Hot water tank drain cock
243
Hot water tank temperature sensor
275
Heating system drain cock
278
Double sensor (Safety + Heating)
4.4 Technical data table
The column on the right gives the abbreviation used on the dataplate.
Data
Max. heating capacity
Min. heating capacity
Max. Heat Output in heating
Min. Heat Output in heating
Max. Heat Output in hot water production
Min. Heat Output in hot water production
Burner nozzles G20
Gas supply pressure G20
Max. pressure at burner (G20)
Min. pressure at burner (G20)
Max. gas delivery G20
Min. gas delivery G20
Burner nozzles G31
Gas supply pressure G31
Max. pressure at burner (G31)
Min. pressure at burner (G31)
Max. gas delivery G31
Min. gas delivery G31
7
11
8
97
9
43
14a
-
+
44
32
179
179
130
Unit
Value
kW
33.3
kW
10.7
kW
31.0
kW
9.2
kW
31.0
kW
9.2
no. x Ø
16 x 1.30
mbar
20
mbar
12.0
mbar
1.5
3
3.52
m
/h
3
1.13
m
/h
no. x Ø
16 x 0.77
mbar
37.0
mbar
35.0
mbar
5.0
kg/h
2.60
kg/h
0.84
cod. 3541B530 - 01/2012 (Rev. 00)
Efficiency class Directive 92/42 EEC
192
14b
NOx emission class
40
74
Max. working pressure in heating
Min. working pressure in heating
Max. heating temperature
Heating water content
Heating expansion tank capacity
Heating expansion tank prefilling pressure
Max. working pressure in hot water production
Min. working pressure in hot water production
DHW content
DHW expansion tank capacity
DHW expansion tank prefilling pressure
243
DHW flowrate Dt 30°C
180
DHW flowrate Dt 30°C
233
Protection rating
Power supply voltage
275
Electrical absorption
Electrical absorption in hot water production
Empty weight
Type of unit
PIN CE
4.5 Diagrams
Pressure - power diagrams
36
35
30
25
20
15
10
5
0
10
11
12
13
14
A
LPG
B
NATURAL GAS
Circulating pumps head / pressure losses
7
6
3
(Q)
5
2
(Q)
4
(P)
3
(P)
1
2
1
0
0
A
Boiler pressure losses
1 - 2 - 3
Circulating pump speed
bar
bar
°C
litres
litres
bar
bar
bar
litres
litres
bar
l/10 min
l/h
IP
V/Hz
W
W
kg
15
16
17
18
19
20
21
22
23
24
25
500
1.000
-
-
3 (<150 mg/kWh)
(NOx)
3
(PMS)
0.8
90
(tmax)
5.5
10
1
9
(PMW)
0.25
55.0
2.0
3.0
190.0
930
(D)
X4D
230V/50Hz
140
140
77
C12-C22-C32-C42-C52-
C62-C72-C82
0461BM0625
A
B
26
27
28
29
30
31
32
33
34
kW
A
1.500
2.000
Q [l/h]
26
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