Appendix
0020177748_03 ENERGY Installation and maintenance instructions 41
K Technical data
Technical data – Heating
ENERGY 12r -A (H-GB) ENERGY 15r -A (H-GB) ENERGY 18r -A (H-GB)
Max. flow temperature adjustment
range (default setting: 75 °C)
10 … 80 ℃ 10 … 80 ℃ 10 … 80 ℃
Maximum permissible pressure
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
Nominal water flow (ΔT = 20 K)
530 l/h 655 l/h 788 l/h
Nominal water flow at Pmin
(ΔT = 20 K)
195 l/h 195 l/h 215 l/h
Nominal water flow (ΔT = 30 K)
353 l/h 436 l/h 525 l/h
Nominal water flow at Pmin
(ΔT = 30 K)
130 l/h 130 l/h 145 l/h
Approximate value for the
condensate volume (pH value
between 3.5 and 4.0) at 50/30 °C
1.23 l/h 1.53 l/h 1.84 l/h
ENERGY 25r -A (H-GB) ENERGY 30r -A (H-GB)
Max. flow temperature adjustment
range (default setting: 75 °C)
10 … 80 ℃ 10 … 80 ℃
Maximum permissible pressure
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
Nominal water flow (ΔT = 20 K)
1,094 l/h 1,313 l/h
Nominal water flow at Pmin
(ΔT = 20 K)
260 l/h 300 l/h
Nominal water flow (ΔT = 30 K)
729 l/h 876 l/h
Nominal water flow at Pmin
(ΔT = 30 K)
170 l/h 200 l/h
Approximate value for the
condensate volume (pH value
between 3.5 and 4.0) at 50/30 °C
2.55 l/h 3.06 l/h
Technical data – G20 power/loading G20
ENERGY 12r -A (H-
GB)
ENERGY 15r -A (H-
GB)
ENERGY 18r -A (H-
GB)
ENERGY 25r -A (H-
GB)
Maximum heat output
12 kW 15 kW 18 kW 25 kW
Effective output range (P)
at 40/30 °C
4.8 … 13.0 kW 4.8 … 16.2 kW 5.3 … 19.5 kW 6.5 … 27.0 kW
Effective output range (P)
at 50/30 °C
4.7 … 12.8 kW 4.7 … 15.9 kW 5.2 … 19.1 kW 6.4 … 26.5 kW
Effective output range (P)
at 80/60 °C
4.5 … 12.3 kW 4.5 … 15.2 kW 5.0 … 18.3 kW 6.1 … 25.4 kW
Domestic hot water heat
output (P)
4.4 … 15.0 kW 4.4 … 18.0 kW 4.9 … 25.2 kW 6.0 … 30.0 kW
Maximum heat input –
heating (Q max.)
12.3 kW 15.3 kW 18.4 kW 25.5 kW
Minimum heat input – heat-
ing (Q min.)
4.5 kW 4.5 kW 5.0 kW 6.1 kW
Maximum heat input – hot
water (Q max.)
15.3 kW 18.4 kW 25.7 kW 30.6 kW
Minimum heat input – hot
water (Q min.)
4.5 kW 4.5 kW 5.0 kW 6.1 kW
ENERGY 30r -A (H-
GB)
Maximum heat output
30 kW
Effective output range (P)
at 40/30 °C
7.6 … 32.4 kW
Effective output range (P)
at 50/30 °C
7.4 … 31.8 kW