Glow-worm Energy7 25c -A, Installation And Maintenance Instructions Manual, Page: 8 / 64

3 Technical data
8
Installation and maintenance instructions Energy
7
0020300875_01
3 Technical data
Technical data
–
General
Energy7 25c
‑
A
(H
‑
GB)
Energy7 30c
‑
A
(H
‑
GB)
Energy7 35c
‑
A
(H
‑
GB)
Gas category I
2H
I
2H
I
2H
Diameter of the gas pipe 1/2 inch 1/2 inch 1/2 inch
Diameter of the heating connec-
tions 3/4 inch 3/4 inch 3/4 inch
Expansion relief valve connection
pipe (min.)
15 mm 15 mm 15 mm
Condensate discharge pipe (min.) 21.5 mm 21.5 mm 21.5 mm
G20 gas supply pressure 2.0 kPa
(20.0 mbar) 2.0 kPa
(20.0 mbar) 2.0 kPa
(20.0 mbar)
Gas flow at P max.
–
domestic hot
water (G20)
2.7 m
³
/h 3.2 m
³
/h 3.8 m
³
/h
Gas flow at P max.
–
heating mode
(G20)
1.9 m
³
/h 2.7 m
³
/h 2.7 m
³
/h
Gas flow at P min. (G20) 0.540 m
³
/h 0.646 m
³
/h 0.762 m
³
/h
CE number (PIN) CE-0063CP3646 CE-0063CP3646 CE-0063CP3646
Flue gas mass flow rate in heating
mode at P min. 2.34 g/s 2.80 g/s 3.30 g/s
Flue gas mass flow rate in heating
mode at P max. 8.3 g/s 11.5 g/s 11.6 g/s
Flue gas mass flow rate in do-
mestic hot water mode at P max.
11.6 g/s 13.8 g/s 16.1 g/s
Flue gas temperature (80 °C/60 °C)
at P max. 60
℃
77
℃
82
℃
Flue gas temperature (80 °C/60 °C)
at P min. 55
℃
55
℃
56
℃
Flue gas temperature (50 °C/30 °C)
at P max. 51
℃
62
℃
56
℃
Flue gas temperature (50 °C/30 °C)
at P min. 34
℃
35
℃
37
℃
Flue gas temperature in domestic
hot water mode 69
℃
68
℃
75
℃
Flue gas temperature when over-
heating 105
℃
95
℃
104
℃
Released system types
C13, C33, C43,
C53 C13, C33, C43,
C53 C13, C33, C43,
C53
Nominal efficiency at 80/60 °C
99.6 % 99.6 % 99.6 %
Nominal efficiency at 50/30 °C 104.0 % 104.0 % 104.0 %
Nominal efficiency at 40/30 °C 106.0 % 106.0 % 106.0 %
Nominal efficiency in partial load
mode (30%) at 40/30 °C 108.5 % 108.5 % 108.5 %
NOx class 6 6 6
Product dimensions, width 390 mm 390 mm 390 mm
Product dimensions, depth 280 mm 280 mm 280 mm
Product dimensions, height 702 mm 702 mm 702 mm
Net weight 32 kg 33 kg 33 kg
Weight when filled with water
36 kg 38 kg 38 kg
Technical data
–
G20 power/load G20
The lowest nominal heat output may be higher than the value in the technical data, depending on the design of the installa-
tion and the current operating mode.