5.4 Technical data table
The column on the right gives the abbreviation used on the dataplate.
Data
Unit
Max. heating capacity
Min. heating capacity
Max. Heat Output in heating (80/60°C)
Min. Heat Output in heating (80/60°C)
Max. Heat Output in heating (50/30°C)
Min. Heat Output in heating (50/30°C)
Efficiency Pmax (80-60°C)
Efficiency Pmin (80-60°C)
Efficiency Pmax (50-30°C)
Efficiency Pmin (50-30°C)
Efficiency 30%
Gas supply pressure G20
mbar
Max. gas delivery G20
m
Min. gas delivery G20
m
Gas supply pressure G31
mbar
Max. gas delivery G31
kg/h
Min. gas delivery G31
kg/h
Efficiency class Directive 92/42 EEC
NOx emission class
Max. working pressure in heating
Min. working pressure in heating
Max. heating temperature
Heating water content
litres
Protection rating
Power supply voltage
V/Hz
Electrical power input
Empty weight
Type of unit
PIN CE
48
EN
Value
kW
49.8
kW
11.2
kW
48.8
kW
11.0
kW
53.0
kW
12.0
%
98.0
%
98.5
%
106.4
%
107.5
%
109
20
3
5.27
/h
3
1.19
/h
37
3.9
0.88
-
-
5
bar
6
bar
0.8
°C
95
2.7
IP
X5D
230V/50Hz
W
147
kg
57
C13-C23-C33-C43-C53-C63-C83-B23-B33
0461BS0878
cod. 3541H790 - Rev. 00 - 12/2015
5.5 Diagrams
Circulating pump head / pressure losses
H [m H
O]
2
9
B
(Q)
8
(Q)
(P)
7
(P)
6
5
4
3
2
A
1
0
0
500
A
Boiler pressure losses
B
Circulating pump max. speed
(NOx)
(PMS)
(tmax)
ECONCEPT 51 A
1.000
1.500
2.000
Q [l/h]
fig. 36
2.500