13
Technical features and dimensions
2.6 - GENERAL FEATURES
2.5 - PERFORMANCE DATA
l/min
bar
bar
mbar
l
°C
°C
l
bar
l
l
bar
bar
l/min.
l/min.
l/min.
l/min.
l/min.
l/min.
l/min.
°C
V-Hz
A (F)
W
IP
kg
ALKON 50
II
2H3P
3,86
0,5
6
10
3,9
85
30
-
-
-
-
-
-
-
-
-
-
-
-
-
-
230/50
4
77 (172)
X4D
50
ALKON 70
II
2H3P
5,4
0,5
6
10
3,9
85
30
-
-
-
-
-
-
-
-
-
-
-
-
-
-
230/50
4
145 (290)
X4D
Appliance’s family gas category
Min. water flow rate in CH circuit (Δt 20 °C)
Min. pressure in CH circuit
Max. pressure in CH circuit
Min. dynamic gas pressure (natural gas)
Water content in primary circuit
Max operating temp. in CH mode
Min operating temp. in CH mode
Total volume CH expansion vessel
Total pre-loading expansion vessel
Max water content CH circuit (calculated for a max temp. of 82°C)
Min flow rate DHW circuit
Min. DHW inlet pressure
Max DHW inlet pressure
DHW specific flow rate ( t 30 °C)
DHW flow restrictor
DHW production in continuous operation with t 45 K
DHW production in continuous operation with t 40 K
DHW production in continuous operation with t 35 K
DHW production in continuous operation with t 30 K (*)
DHW production in continuous operation with t 25 K (*)
DHW adjustable temperature
Electrical supply /power consumption
Fuse rating
Maximum absorbed power (with optional modulating pump)
Electrical protection
Net weight
For information regarding the adjustment of: INJECTORS - BURNER PRESSURES – DIAPHRAGMS – OUTPUTS – GAS CONSUMPTIONS please refer to
the paragraph ADAPTMENT TO THE USE OF OTHER GASES.
48,5
9,6
47,2
9,1
97,29
94,9
4
49,3
10,3
101,62
107,33
97,80
98,42
0,58
0,311
43,6
21,44
26,84
7,8
-
19,7 - 71,5
33,9
5
2,20
67,5
9,6
65,5
9,1
97,06
94,9
4
68,5
10,3
101,51
107,33
98,39
98,28
0,35
0,223
51,3
30,96
26,84
10,87
-
19,7 - 98,7
34,68
5
2,59
(Reference gas: Natural Gas G20)
Max heat input
Min heat input
Nominal heat outpout 80/60
Minimum heat output 80/60
Efficiency at nominal load 80/60
Efficiency at minimal load 80/60
Number of stars (according to CEE 92/42
Nominal heat output in condensing mode 50/30
Minimal heat output in condensing mode 50/30
Efficiency at nominal load in condensing mode 50/30
Efficiency at minimal load in condensing mode 50/30
Combustion efficiency at nominal load
Combustion efficiency at minimal load
Stand-by losses with burner in operation
Stand-by losses with burner off
(*) Flue gas temperature tf-ta (max)
Flue gas mass flow rate (max)
Air excess λ
Condensate production max
(**) CO
2
(min - max)
CO
at
0% of O
2
(min - max)
N0x (value according to EN 297/A3 and EN 483
N0x class
Flue losses with burner in operation (max)
kW
kW
kW
kW
%
%
n.
kW
kW
%
%
%
%
%
%
°C
g/s
%
kg/h
%
mg/kWh
mg/kWh
%
mg/kWh
(*) Room Temperature = 20°C
(**) See Table Injectors - Pressures
ALKON 50
ALKON 70
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