19
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
- * Temperature adjustment with a domestic hot
water flow of 9.3l/min. with inlet temperature
of 15°C.
- The data relating to domestic hot water
performance refer to a dynamic inlet pressure
of 2 bar and an inlet temperature of 15°C; the
values are measured immediately at the boiler
outlet, considering that to obtain the data
declared, mixing with cold water is required.
3.17 COMBUSTION PARAMETERS.
3.18 TECHNICAL DATA.
Nominal heat input
kW (kcal/h)
30,9 (26571)
Minimum heat input
kW (kcal/h)
12 (10356)
Nominal heat output (useful)
kW (kcal/h)
27,9 (23994)
Minimum heat output (useful)
kW (kcal/h)
10,5 (9030)
Efficiency at nominal heat output
%
90,3
Efficiency at 30% nominal heat output load
%
89,3
Heat loss at case with burner On/Off
%
3,60 / 1,07
Heat loss at flue with burner On/Off
%
6,10 / 0,24
Central heating circuit max. operating pressure
bar
3
Central heating circuit max. operating temperature
°C
90
Adjustable central heating temperature
°C
38 - 85
System expansion vessel total volume
l
4,5
Expansion vessel factory-set pressure
bar
1
Water content in generator
l
2,9
Head available with 1000 l/h flow rate
kPa (m H
2
O)
28,9 (2,95)
Hot water production useful heat output
kW (kcal/h)
27,9 (23994)
Domestic hot water adjustable temperature
°C
38 - 77
Domestic hot water circuit flow limiter
l/min
11
Domestic circuit min. pressure (dynamic)
bar
0,3
Domestic hot water circuit max. working pressure
bar
10
Minimum D.H.W. flow rate
l/min
1,5
Specific flow rate (∆T 30°C)
l/min
12,8
Flow rate capacity in continuous duty (∆T 30°C)
l/min
13,2
Weight of full boiler
kg
33,9
Weight of empty boiler
kg
31,0
Electrical connection
V/Hz
230/50
Nominal absorption
A
0,5
Installed electric output
W
120
Pump consumption
W
98
Equipment electrical system protection
-
IPX4D
Boiler flue circuit resistance
Pa
1,3
NO
X
class
-
3
Weighted NO
X
mg/kWh
140
Weighted CO
mg/kWh
32
Type of appliance
B11BS
Category
II2H3+
G20
G30
G31
Gas nozzle diameter
mm
1,30
0,78
0,78
Supply pressure
mbar (mm H
2
O)
20 (204)
29 (296)
37 (377)
Flue flow rate at nominal heat output
kg/h
73
69
72
Flue flow rate at min heat output
kg/h
63
63
63
CO
2
at Q. Nom./Min.
%
6,00 / 2,60
7,40 / 3,00
7,00 / 3,00
CO with 0% O
2
at Nom./Min. Q. Nom./Min.
ppm
70 / 32
133 / 53
77 / 41
NO
X
at 0% of O
2
at Q. Nom./Min.
mg/kWh
231 / 134
356 / 139
420 / 150
Flue temperature at nominal output
°C
100
107
103
Flue temperature at minimum output
°C
79
79
79
- The maximum sound level emitted during
boiler operation is < 55dBA. The sound level
value is referred to semianechoic chamber tests
with the boiler operating at max. heat output,
with extension of the flue gas exhaust system
according to product standards.
Summary of Contents for 3.018921
Page 1: ...NIKE MINI 28 KW SPECIAL Instruction and warning booklet 1 040845ENG...
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