11
EN
BLUEHELIX 25K 50
5.3 Water circuit
fig. 32 - Water circuit
5.4 Diagrams
Circulating pump head / pressure losses
fig. 33 - Circulating pump head / Pressure losses BLUEHELIX 25 K 50
A =
Boiler pressure losses
B =
Circulating pump min. speed
C =
Circulating pump max. speed
A
For correct modulation, the speed selector on the pump must be set to III.
10
11
209
210
278
193
154
32
36
56
180
40
95
233
232
186
243
114
Q
[l/h]
H
[m H
2
O]
C
B
A
0
0.5
1
1.5
2
2.5
3
6
5
4
3
2
1
0
Data
Unit
BLUEHELIX 25 K 50
Max. heating capacity
kW
25.0
(Q)
Min. heating capacity
kW
5.8
(Q)
Max. Heat Output in heating (80/60°C)
kW
24.5
(P)
Min. Heat Output in heating (80/60°C)
kW
5.7
(P)
Max. Heat Output in heating (50/30°C)
kW
26.5
Min. Heat Output in heating (50/30°C)
kW
6.2
Max. heating capacity in hot water production
kW
27.5
Min. heating capacity in hot water production
kW
5.8
Max. Heat Output in hot water production
kW
27.0
Min. Heat Output in hot water production
kW
5.
Efficiency Pmax (80-60°C)
%
98.
Efficiency Pmin (80-60°C)
%
97.8
Efficiency Pmax (50-30°C)
%
106.1
Efficiency Pmin (50-30°C)
%
107.5
Efficiency 30%
%
108.8
NOx emission class
-
5
(NOx)
Gas supply pressure G20
mbar
20
Max. gas delivery G20
m
3
/h
2.91
Min. gas delivery G20
m
3
/h
0.61
CO
2
max. G20
%
9.
CO
2
min. G20
%
8.70
Gas supply pressure G31
mbar
37
Max. gas delivery G31
kg/h
2.1
Min. gas delivery G31
kg/h
0.45
CO
2
max. G31
%
10.70
CO
2
min. G31
%
9.80
Max. working pressure in heating
bar
3
(PMS)
Min. working pressure in heating
bar
0.8
Max. heating temperature
°C
9
(tmax)
Heating water content
litres
.
Heating expansion tank capacity
litres
8
Heating expansion tank prefilling pressure
bar
0.8
Max. working pressure in hot water production
bar
9
(PMW)
Min. working pressure in hot water production
bar
0.3
DHW content
litres
50
DHW expansion tank capacity
litres
2
DHW expansion tank prefilling pressure
bar
3
DHW flow rate Dt 30°C
l/10min
175
DHW flow rate Dt 30°C
l/h
820
(D)
Protection rating
IP
X5D
Power supply voltage
V/Hz
230V/50Hz
Electrical power input
W
8
Empty weight
kg
5
Type of unit
C13-C23-C33-C43-C53-C63-C83-B23-B33
PIN CE
0461CM0988
cod. 3541F704 - Rev. 00 - 12/2018
