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6
Instructions for installation and servicing ecoTEC
2 Boiler
specifications
2.1 Technical
data
Technical data
ecoTEC plus
ecoTEC pro
Units
824
831
837
24
28
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
6.7 – 19.0
6.9 – 19.6
7.1 – 20.2
7.2 – 20.6
8.7 – 24.0
9.0 – 24.7
9.2 – 25.5
9.4 – 26.0
12.0 – 28.0
12.3 – 28.9
12.7 – 29.7
12.9 – 30.3
6.7 – 19.0
6.9 – 19.6
7.1 – 20.2
7.2 – 20.6
9.0 – 24.0
9.3 – 24.7
9.6 – 25.5
9.8 – 26.0
kW
kW
kW
kW
Maximum DHW output
23.0
31.0
37
23.0
28.0
kW
Maximum output for heating
19
24
28
19
24
kW
Minimum output
6.7
8.7
12
6.7
9.0
kW
Category
II
2H3P
SEDBUK Band
A
A
A
A
A
Band
SAP Seasonal Efficiency
91.1
%
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: 2.5
G31: 1.82
G20: 3.3
G31: 2.46
G20: 4.0
G31: 2.94
G20: 2.5
G31: 1.82
G20: 3.0
G31: 2.22
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)
3.2
10.7
4.2
14.4
5.7
17.1
3.2
10.7
4.4
13.0
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
74
40
83
40
70
40
74
40
74
°C
°C
NOx class
5
Protection class
IP X4D
max. flow temperature
85
°C
Adjustable flow temperature
Default setting: max. 75 °C
30 – 85
40 – 85
30 – 85
°C
Maximum CH system pressure
3.0
bar
Circulation water volume (
∆
T=20 K)
817
1032
1204
817
1032
l/h
Approx. condensation volume
at 50 °C flow/30 °C return heating
1.8
2.2
2.9
1.8
2.2
l/h
Pump delivery height
250
mbar
Minimum DHW flow rate
1.5
l/min
DHW flow rate
∆
T=35 K rise
9.4
12.7
15.2
9.4
11.5
l/min
Appr. DHW flow rate at factory set temp. rise (
∆
T=42 K)
7.9
10.6
12.6
7.9
9.6
l/min
Permitted DHW overpressure
10
bar
Mains water pressure required for max. flow rate
0.5
0.75
0.75
0.5
0.5
bar
Mains water pressure required for min. flow rate
0.15
bar
Hot water discharge temperature range
35 – 65
°C
Exhaust flue
60/100
mm
Flue categories
C13, C33, C43, C53, C83, B23, B33
10 l expansion vessel pre-charge pressure
0.75
bar
Connections heating flow/return
22
mm
Gas inlet
15
22
15
mm
Pressure relief discharge pipework (min.)
15
mm
Condensate drain (min. internal drain)
19
mm
Dimensions (H x W x D)
720 x 440 x
335
720 x 440 x
335
720 x 440 x
403
720 x 440 x
335
720 x 440 x
335
mm
Weight (boiler only)
35
38
43
34
37
kg
Primary water content
1.9
2.3
2.5
1.9
2.1
l
Electrical supply voltage
230/50
V ~/Hz
Internal fuse (slow) main voltage
2
A
Power input
110
125
140
110
115
W
Table 2.1 Technical data ecoTEC combination boiler
2 Boiler specifications
Summary of Contents for ecoTEC plus 612
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