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3.3 Technical specifications
Conditions of use:
Maximum operating pressure: 6 bar
Maximum operating temperature: 100 °C
Boiler thermostat setting: 30 to 90°C
Safety thermostat setting: 110 °C
Boiler
Useful output
Power input
Number of sections
Water content
∆ T = 10K
Water resistance
(1)
∆ T = 15K
∆ T = 20K
Pressure in the furnace for nozzle
(4)
pressure = 0
Flue gas temperature - Ambient
(1) (3)
temperature
Fuel oil
Mass flue gas
(1) (2)
flow rate
Gas
Combustion
Inscribed
chamber
diameter
Equivalent
diameter
Depth
Volume
Maintenance
∆ T = 30K
consumption*
Weight (empty)
*Maintenance consumption: total heat emission when the burner is
off as a percentage of the nominal input power when the difference
between the mean boiler temperature and the room temperature is
30 K - in accordance with DIN 4702 - EN 303.
(1)
Nominal operation (top boiler power)
(2)
CO
= 13.1 to 13.5% with fuel oil and 9.5% with natural gas.
2
(3)
Boiler temperature: 80 °C
Ambient temperature: 20 °C
(4)
In order for the boiler to operate correctly, it is
imperative to respect the draught at the nozzle.
17/04/2012 - 300029103-001-01
NXR5i
NXR5i
NXR5i
-14
-15
-16
kW
754
812
870
to
to
to
812
870
928
kW
821
897
954
to
to
to
890
967
1024
14
15
16
l
655
693
731
mbar
67.2
77.6
26.2
30
34.7
11.7
16.8
19.4
6.5
mbar
2.3
2.4
2.5
K
<190
<190
<190
Kg/h
1380
1480
1580
1450
1550
1650
mm
614
614
614
mm
694
694
694
mm
1483
1594
1705
3
0.57
0.61
0.65
m
%
0.07
0.07
0.07
kg
3171
3364
3561
NXR5i
NXR5i
NXR5i
NXR5i
-17
-18
-19
-20
928
986
1044
1102
to
to
to
to
986
1044
1102
1160
1022
1077
1146
1198
to
to
to
to
1093
1147
1216
1268
17
18
19
20
769
807
845
905
30.2
35.8
41.4
48.0
13.5
14.0
18.5
21.5
7.6
9.0
10.4
12.0
2.6
2.7
2.85
3
<190
<190
<190
<190
1670
1770
1870
1970
1760
1860
1960
2070
614
614
614
614
694
694
694
694
1816
1927
2038
2189
0.70
0.74
0.78
0.84
0.07
0.07
0.07
0.06
3756
3955
4124
4343
NXR5i
NXR5i
NXR5i
NXR5i
NXR5i
-21
-22
-23
-24
1160
1218
1276
1334
to
to
to
to
1218
1276
1334
1400
1265
1333
1393
1463
to
to
to
to
1336
1404
1464
1544
21
22
23
24
943
981
1019
1057
53.6
59.2
64.8
71.6
24
26.5
29
32
13.4
14.8
16.2
17.9
3.1
3.2
3.3
3.4
<190
<190
<190
<190
2070
2170
2260
2360
2170
2270
2380
2480
614
614
614
614
694
694
694
694
2300
2411
2522
2633
0.88
0.92
0.96
1.00
0.06
0.06
0.06
0.06
4538
4734
4930
5107
NXR5i
-25
1400
to
1450
1532
to
1595
25
1095
78.4
35
19.6
3.5
<190
2460
2580
614
694
2744
1.05
0.06
5297
9
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