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Appendix 1: Technical data
Model
VIRTUS 50 GA
Country
BE FR
NL
GE LU
GE
ES GB IE
PT DK FI
SE IT AT
Category
I2E+
I2L/I2K
I2E
I2ELL
I2H
Type of gas
G20/G25
G25/G25,3
G20
G25
G20
Type of appli-
ance
C11/C31/C91
C11/C31/C91 C11/C31/C91 C11/C31/C91 C11/C31/C91
Nominal
load (Hi)
8.5 kW
8 kW
8.5 kW
7.5 kW
8.5 kW
Efficiency
83 %
81%
83 %
78 %
83 %
Nominal out-
put
7 kW
6.5 kW
7 kW
5.9 kW
7 kW
Nominal gas
consumption
0.78 m
3
/hr(G20)
0.9 m
3
/hr
(G20)
0.78 m
3
/hr
(G20)
0.77 m
3
/hr
(G20)
0.78 m
3
/hr
(G20)
Initial pres-
sure
20/25 mbar
25 mbar
20 mbar
20 mbar
20 mbar
Burner pres-
sure
12.5/19 mbar
19 mbar
12.5 mbar
15.4 mbar
12.5 mbar
Code burner
nozzle
320/220
320/220
320/220
320/220
320/220
Pilot nozzle
code
312
312
312
312
312
Gas con-
nection
3/8"
3/8"
3/8"
3/8"
3/8"
Flue gas
exhaust
concentric
100mm/150mm
Weight
90 kg
NOx
121 mg/kWh
91 mg/kWh
121 mg/kWh
121 mg/kWh
NOx class
5
D
OVRE
28
Subject to change because of technical improvements