GENERAL
10
(*) Values referred to atmospheric pressure at sea level.
Description
TAU UNIT
OIL 35 B
OIL 55 B
Type of boiler
condensing boiler for
central heating
B23-B23P-C13-C33-C63
Fuel
Heating fuel oil (Light oil)
Rated heat input at furnace referred to HVC (LCV)
36,6 (34,5)
58,4 (55)
kW
Useful (rated) heat output
33
53
kW
Rated heat output (60-80°C) P4
33,3
53,1
kW
30% heat output with return at 30°C (P1)
10,0
15,9
kW
Efficiency class in central heating mode
A
Seasonal energy efficiency in central heating
mode
h
s
90
91
%
Efficiency at rated heat input in high
temperature mode (HCV)
h
4
Useful Pn
(60-80°C)
91,0
91,0
%
Efficiency at 30% rated heat input in low
temperature mode (HCV)
h
1
Useful 30%
of Pn
96
96
%
Heat loss in standby mode
Pstby
200
250
W
Annual energy consumption
QHE
107
169
GJ
Noise level (sound power)
LWA
70
71
dB(A)
Emissions at maximum heat input
NOx
(referred to
HCV)
94
96
mg/kWh
Smoke scale
< 0,5
CO2
12,5
%
CO w.a. <
23
ppm
Flue gas temperature
Δt (80-60°C)
70
67
Δt (50-30°C)
44
46
Flue gas mass flow rate (*)
0,013
0,023
Kg/s
Flue gas thermostat trip temperature
90
°C
Water-side pressure drop (Δt 20°C)
50
75
mbar
Maximum working pressure
3
bar
Safety thermostat trip temperature
110
°C
Maximum operating temperature
82
°C
Minimum return temperature
30
°C
Boiler water temperature selection range
30-82
°C
Boiler water capacity
34
51
l
Secondary heat exchanger water capacity
7
9
Maximum condensation at 100% rated heat output (50-30°C)
2,2
3,8
l/h
Power supply
230-50
V-Hz
Electric degree of protection
X0D
IP
Consumption at full load
Elmax
250
300
W
Consumption at part load
Elmin
75
90
W
Consumption in standby mode PSB
P sb
2
2
W
Technical specifications
TECHNICAL SPECIFICATIONS
