TECHNICAL DATA
DESCRIPTION
Fuel
Gas supply pressure (nominal)
Boiler category
Type of boiler
Nominal heating power (Qn)
Useful nominal output (Pn)
Max/min useful efficiency at Pn
Useful efficiency at 30% of Pn
Flue gas temperature (∆T) at Pn max
Flue gas temperature (∆T) at Pn min
Flue gas mass flow rate at Pn max
Flue gas mass flow rate at Pn min
CO
at Pn max
2
CO
at Pn min
2
CO at Pn max (0% of O
2
CO at Pn min (0% of O
2
NOx at Pn max (0% of O
NOx at Pn min (0% of O
Class NOx
Maximum permitted temperature
Maximum permitted pressure for heating circuit
Boiler water content
Water heater water content
Electrical power supply
Electrical power absorbed
Degree of electrical protection
Heating expansion tank volume
Heating expansion tank preload
Stack loss with burner on at Pn max
Stack loss with burner off
Mantle loss at Pn max
∆p minimum at air pressure switch
Noise
Energy efficiency marking (EEC 92/42)
SANITARY HOT WATER PERFORMANCE
DESCRIPTION
Continuous delivery without flow limiter ∆T=30°C
Continuous delivery with flow limiter
Peak draw in the first 10 min.
Sanitary water pressure
maximum
minimum
maximum
minimum
)
)
)
2
)
2
ALMA 24 MBS W TOP
G20
G30
20
28-30
II2H3+
B22 - C12 - C32 - C42 - C52 - C62 - C82
26
12,1
24,36
10,68
93,7/88,3
90,7
105
107
87
78
0,009
0,009
0,004
0,004
7,6
3,5
3,46
46,5
134
50,5
116
268
379
210
232
90
50
230~50
140
X4D
5,45
0,1
0,85
0,9
46
★ ★ ★
ALMA 24 MBS W TOP
11,4
12
157
- 2
-
USER MANUAL
G31
37
106
92
0,010
0,004
9
8,8
3,45
116
113
374
233
2
3
2
8
1
8
mbar
kW
kW
kW
kW
%
%
°C
°C
kg/s
kg/s
%
%
mg/kWh
mg/kWh
mg/kWh
mg/kWh
°C
bar
l
l
V~Hz
W
IP
l
bar
%
%
%
mbar
dB
l/min
l/min
bar