9
GENERAL INFORMATION
GENERAL INFORMATION
1.8
Technical specifications
DESCRIPTION
TAU N
2100
2600
Device type
Condensing boiler for central heating B23 - B23P (*)
Fuel
All GASES
Device category
See Burner
Rated heat input (Q max) GCV (NCV)
2331
2886
kW max
(2100)
(2600)
Rated heat input (Q min) GCV (NCV)
1943,6
2332,1
kW min
(1751)
(2101)
Useful (rated) heat output
2062
2553
kW max
Maximum nominal useful output (80/60°C)
2062,2
2553,2
kW max
Minimum nominal useful output (80/60°C) ( Pn min)
1721,2
2065,3
kW min
Maximum useful output (40/30°C)
2258,7
2796,5
kW max
30% heat output with return at 30°C (P1)
684,8
847,9
kW max
Efficiency at rated heat input and in High tempera-
ture mode n4 ( 80/60°C) GCV NCV
88,5
88,5
%
(98,2)
(98,2)
Useful efficiency at Pn min (80/60°C) HCV (LCV)
88,6
88,6
%
(98,3)
(98,3)
Useful efficiency at Pn Max (40/30°C) GCV (NCV)
96,9
96,9
%
(107,5)
(107,5)
Efficiency at 30% rated heat input and in Low tem-
perature mode n1 with return 30°C GCV (NCV)
97,9
97,9
%
(108,7)
(108,7)
Losses from stack for sensible heat (Qmax)
1,5
%
Losses from casing with burner on
0,3
%
Constant pressure drop (P.max)
< 0,2
%
Flue gas temperature
< 45÷75 (**)
°C
Mass flue gas flow rate (Qmax) (***)
0,93
1,14
kg/sec
Furnace pressure
9,6
11,5
mbar
Furnace volume
1810
2270
dm3
Tot. volume of flue gas side
3040
3830
dm3
Total surface area for heat exchange
93,2
115,7
m2
Volumetric thermal load (Q.max)
1160,2
1145,4
kW/m3
Specific heat load
22,5
22,5
kW/m2
Max. condensate production Full load 30/50 °C
203
256
l/h
Max. operating pressure
6
bar
Maximum permitted temperature
100
°C
Maximum operating temperature
90
°C
Pressure drop
∆
T 10°C
78
56
mbar
Pressure drop
∆
T 20°C
31
21
mbar
Water capacity
3330
4700
liters
Turbulators n.
175
194
No.
(*)
The B23P configuration may only be adopted with premix gas burners.
(**)
Depends on return temperature (30-60°C)
(***)
At Pn max and Tm = 80°C, Tr = 60°C e CO2 = 10,3%
9
The stack must guarantee the minimum draught specified by applicable technical standards, assuming zero pressure at the
connection to the flue.
