6 Installation and maintenance manual ecoTEC
2 Boiler specifications
2.1 Technical data
Technical data
ecoTEC plus
Units
612 615 618 624 630
CH heat output range
80 °C flow/60 °C return
60 °C flow/40 °C return
50 °C flow/30 °C return
40 °C flow/30 °C return
4.0 – 12.0
4.1 – 12.3
4.3 – 12.7
4.4 – 12.9
4.0 – 15.0
4.1 – 15.5
4.3 – 15.9
4.4 – 16.2
6.0 – 18.0
6.1 – 18.6
6.3 – 19.1
6.5 – 19.5
8.7 – 24.0
9.0 – 24.7
9.3 – 25.5
9.4 – 26.0
10.0 – 30.0
10.3 – 30.9
10.6 –31.8
10.8 – 32.4
kW
kW
kW
kW
Memory charging capacity 12.0 15.0 18.0 24.0 30.0 kW
Maximum thermal load during memory charging 12.2 15.3 18.4 24.5 30.6 kW
Maximum thermal load for heating 12.2 15.3 18.4 24.5 30.6 kW
Minimum thermal load 4.1 4.1 6.1 8.9 10.2 kW
Category II
2H3P
SEDBUK AAAAABand
Inlet gas working pressure required (G20, natural gas) 20 mbar
Inlet gas working pressure required (G31, Propane) 37 mbar
Connected load (if needed, related to stored charge/
water heating) at 15 °C and 1013 mbar
G20: 1.3
G31: 0.95
G20: 1.6
G31: 1.19
G20: 1.9
G31: 1.43
G20: 4.1
G31: 1.90
G20: 3.2
G31: 2.38
m
3
/h
kg/h
Exhaust mass rate
at minimum thermal load (40 °C flow/30 °C return
at maximum thermal load (80 °C flow/60 °C return)
1.9
5.5
1.9
6.9
2.8
8.3
4.1
11.1
4.7
13.8
g/s
g/s
Exhaust temperature
at minimum thermal load (40 °C flow/30 °C return)
at maximum thermal load (80 °C flow/60 °C return)
40
70
°C
°C
Standard efficiency factor in compliance with DIN
4702, T.8 (related to rated thermal output setting)
75 °C flow/60 °C return
40 °C flow/30 °C return
107
109
%
%
30 % efficiency 108
%
NOx class 5
Protection class IP X4D
max. flow temperature 85 °C
Adjustable flow temperature
Default setting: max. 75 °C
40 – 85 °C
Permitted total overpressure 3.0 bar
Circulating water volume (∆T=20 K)
516 645 774 1032 1290 l/h
Approx. condensation volume
at 40 °C flow/30 °C return heating
1.1 1.4 1.7 2.2 2.7 l/h
Pump delivery height 250 mbar
Adjustable storage target value (15 °C at left stop,
spare adjusting range 40 – 70 °C
15 – 70 °C
Exhaust nozzles 60/100 mm
10 l expansion vessel pre-charge pressure 0.75 0.75 0.75 0.75 0.75 bar
Maximum CH system pressure 2.5 2.5 2.5 2.5 2.5 bar
Connections heating flow/return 3/4“ 3/4“ 3/4“ 3/4“ 3/4“
Gas inlet 15 15 15 15 15 mm
Pressure relief discharge pipework (min.) 15 15 15 15 15 mm
Condensate drain (min. internal drain) 19 19 19 19 19 mm
Weight 38 38 40 39 40 kg
Primary water content 1.9 1.9 1.9 2.1 2.3 l
Electrical supply voltage 230/50 230/50 230/50 230/50 230/50 V ~/Hz
Internal fuse (slow) main voltage 2 A
Power input min.
max.
at 30 % efficiency
70
130
65
W
W
W
Table 2.1 Technical data 600 series
2 Boiler specifications
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