3.2
Technical data
UltraGas
®
(15-50)
Type
(15)
(20)
(27)
(35)
(50)
• Nominal heat output at 80/60 °C, natural gas
kW
3.0-14.3
3.8-18.7
4.5-25.0
(50)
5.2-32.8
•
Nominal heat output at 40/30 °C, natural gas
kW
3.3-15.5
4.3-20.3
5.0-27.2
5.8-35.7
5.8-35.7
• Nominal heat output at 80/60 °C, propane
2
kW
4.5-13.8
4.9-18.6
6.6-24.3
6.9-32.2
6.9-32.2
•
Nominal heat output at 40/30 °C, propane
2
kW
5.0-15.3
5.5-20.7
7.3-27.0
7.7-35.7
7.7-35.7
• Nominal load with natural gas
1
kW
3.1-14.5
4.0-19.0
4.7-25.4
5.4-33.3
5.4-33.3
• Nominal load with propane
2
kW
4.7-14.3
5.1-19.3
6.8-25.2
7.2-33.4
7.2-33.4
• Working pressure heating maximum/minimum
bar
3.0/1.0
3.0/1.0
3.0/1.0
3.0/1.0
3.0/1.0
• Test pressure
bar
4.5
4.5
4.5
4.5
4.5
• Working temperature maximum
°C
85
85
85
85
85
• Boiler water content
l
57
55
51
81
81
Flow resistance boiler
3
z value
3.5
3.5
3.5
1.1
1.1
•
Minimum water flow
l/h
0
0
0
0
0
• Boiler weight (without water content, incl. casing)
kg
176
179
186
205
205
•
Boiler efficiency at 80/60 °C in full-load operation
(related to net calorific value NCV / gross calorific value GCV)
%
97.5/87.8
97/88.1
97.9/88.2 97.9/88.2 97.9/88.2
•
Boiler efficiency at 30 % partial load (EN 15502)
(related to net calorific value NCV / gross calorific value GCV)
%
107.9/97.2
108.0/97.3 108.0/97.3 108.1/97.4 108.1/97.4
•
Standard efficiency (DIN 4702-8)
40/30 °C
%
109.5/98.6 109.5/98.6 109.5/98.6 109.5/98.6 109.5/98.6
(related to net calorific value NCV/gross calorific value GCV)
75/60 °C
%
107/96.4
107/96.4
107/96.4 107.0/96.4 107.0/96.4
• Stand-by loss at 70 °C
Watt
160
160
160
220
220
• NOx class (EN 15502)
6
6
6
6
6
• Standard emission rate
Nitrogen oxides mg/kWh
25
26
28
31
31
• Content of CO
2
in the flue gas maximum/minimum output
%
9.0/8.8
9.0/8.8
9.0/8.8
9.0/8.8
9.0/8.8
• Dimensions
See table of dimensions
• Connections
Flow/return
Inches
R 1
″
R 1
″
R 1
″
R 1 ¼″
R 1 ¼″
Gas
Inches
R ¾″
R ¾″
R ¾″
Rp ¾″
Rp ¾″
Flue gas/
combustion air Ø mm
E80
E80
E80
E80
E80
•
Gas flow pressure minimum/maximum
Natural gas E/LL
mbar
17.4-50
17.4-50
17.4-50
17.4-50
17.4-50
Propane
mbar
37-50
37-50
37-50
37-50
37-50
•
Gas connection value at 15 °C/1013 mbar:
Natural gas E (Wo = 15.0 kWh/m
3
) NCV = 9.97 kWh/m
3
m
3
/h
1.5
1.9
2.6
3.3
3.3
Natural gas LL (Wo = 12.4 kWh/m
3
) NCV = 8.57 kWh/m
3
m
3
/h
1.7
2.2
3.0
3.9
3.9
Propane (NCV = 25.9 kWh/m
3
)
m
3
/h
0.6
0.8
1.0
1.3
1.3
• Operation voltage
V/Hz
230/50
230/50
230/50
230/50
230/50
• Control voltage
V/Hz
24/50
24/50
24/50
24/50
24/50
• Electrical power consumption min./max.
Watt
20/41
22/58
20/54
24/96
24/96
• Stand-by
Watt
12
12
12
12
12
• IP rating (integral protection)
IP
20
20
20
20
20
• Lowest ambient temperature during operation
°C
5
5
5
5
5
• Highest ambient temperature during operation
°C
40
40
40
40
40
• Sound power level
- Heating noise (EN 15036 part 1) (room air dependent)
dB(A)
57
61
66
62
62
- Exhaust noise is radiated from the mouth
(DIN 45635 part 47) (
room air dependent/room air independent
dB(A)
43
49
55
55
55
• Sound pressure level (depending on installation conditions)
4
dB(A)
50
56
59
55
55
•
Condensate quantity (natural gas) at 40/30 °C
l/h
1.3
1.8
2.4
3.1
3.1
• pH value of the condensate
pH
approx. 4.2 approx. 4.2 approx. 4.2 approx. 4.2 approx. 4.2
•
Flue gas system: requirements, values
Temperature class
T120
T120
T120
T120
T120
Type of connection
B23P, C53, C63
Flue gas mass flow at nominal heat load
kg/h
23
31
42
55.0
55.0
Flue gas mass flow at lowest nominal heat load
kg/h
4.7
6.0
7.1
8.1
8.1
Flue gas temperature at nominal output and operation 80/60 °C
°C
62
63
64
65
65
Flue gas temperature at nominal output and operation 40/30 °C
°C
45
45
45
46
46
Flue gas temperature at lowest nominal heat load and operation 40/30 °C
°C
31
31
31
31
31
Maximum permitted temperature of the combustion air
°C
50
50
50
50
50
Volume flow rate combustion air
Nm
3
/h
17
23
31
41
41
Feed pressure
total at the combustion air/flue gas line
Pa
100
100
100
120
120
Maximum draught/depression at flue gas outlet
Pa
-50
-50
-50
-50
-50
1
Data related to NCV.
The boiler series is tested for EE/H-settings. With a factory setting of the Wobbe coefficient of 15.0 kWh/m
3
operation at a
Wobbe coefficient of 12.0 up to 15.7 kWh/m
3
is possible without new settings (readjustment might be necessary).
2
Data related to NCV.
3
Flow resistance boiler in mbar = Volume flow (m
3/
h)
2
x z factor; or see diagram
4
See also notes at “Engineering”.
9
4 217 213 / 01
TECHNICAL INFORMATION
Summary of Contents for UltraGas 15
Page 48: ...48 4 217 213 01...
Page 49: ...49 4 217 213 01...
