Appendix
0020186710_06 ecoTEC exclusive Installation and maintenance instructions
47
No.
Work
Inspection
(annual)
Mainten-
ance
(At least
every
two years)
21
Ensure that no gas, flue gas, domestic hot water or condensate is leaking from the product.
Restore leak-tightness if necessary.
X
X
22
Record the inspection/maintenance work carried out.
X
X
H
Technical data
Technical data
–
General
VC 156/5
‑
7
(N-DE)
ecoTEC
exclusive
VC 216/5
‑
7
(N-DE)
ecoTEC
exclusive
VC 246/5
‑
7
(N-DE)
ecoTEC
exclusive
VC 276/5
‑
7
(N-DE)
ecoTEC
exclusive
VC 326/5
‑
7
(N-DE/DK)
ecoTEC
exclusive
VC 216/5
‑
7
(N-DE)
ecoTEC
exclusive l. e.
Designated country (des-
ignation in accordance
with ISO 3166)
DE (Germany)
DE (Germany)
DE (Germany)
DE (Germany)
DE (Germany)
DE (Germany)
Approved unit categories
II
2N3P
II
2N3P
II
2N3P
II
2N3P
II
2N3P
II
2N3P
Gas connection, boiler
side
20 x 1.0 mm
20 x 1.0 mm
20 x 1.0 mm
20 x 1.0 mm
20 x 1.0 mm
20 x 1.0 mm
Flow/return heating con-
nections, boiler side
22 x 1.5 mm
22 x 1.5 mm
22 x 1.5 mm
22 x 1.5 mm
22 x 1.5 mm
22 x 1.5 mm
Expansion relief valve
connection pipe (min.)
15 mm
15 mm
15 mm
15 mm
15 mm
15 mm
Air/flue connection
60/100 mm
60/100 mm
60/100 mm
60/100 mm
80/125 mm
60/100 mm
Condensate discharge
pipe (min.)
19 mm
19 mm
19 mm
19 mm
19 mm
19 mm
Gas connection pressure,
G20 natural gas
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
Gas connection pressure,
G25 natural gas
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
Gas connection pressure,
G31 propane
5.0 kPa
(50.0 mbar)
5.0 kPa
(50.0 mbar)
5.0 kPa
(50.0 mbar)
5.0 kPa
(50.0 mbar)
5.0 kPa
(50.0 mbar)
5.0 kPa
(50.0 mbar)
Gas flow rate at 15 °C
and 1013 mbar (based
on domestic hot water
generation, if applicable),
G20
1.9 m
³
/h
2.6 m
³
/h
2.6 m
³
/h
3.2 m
³
/h
3.5 m
³
/h
2.6 m
³
/h
Gas flow rate at 15 °C
and 1013 mbar (based
on domestic hot water
generation if applicable),
G25
2.3 m
³
/h
3.1 m
³
/h
3.1 m
³
/h
3.9 m
³
/h
4.3 m
³
/h
3.1 m
³
/h
Gas flow rate at 15 °C
and 1013 mbar (based
on domestic hot water
generation, if applicable),
G31
1.4 kg/h
1.9 kg/h
1.88 kg/h
2.4 kg/h
2.59 kg/h
1.9 kg/h
Min. flue gas mass flow
rate (G20)
0.84 g/s
0.84 g/s
0.84 g/s
1.47 g/s
1.60 g/s
0.84 g/s
Min. flue gas mass flow
rate (G25)
0.86 g/s
0.86 g/s
0.86 g/s
1.49 g/s
1.62 g/s
0.86 g/s
Min. flue gas mass flow
rate (G31)
1.81 g/s
1.81 g/s
1.81 g/s
1.81 g/s
3.62 g/s
1.81 g/s
Max. flue gas mass flow
rate
8.24 g/s
10.98 g/s
10.98 g/s
13.73 g/s
15.10 g/s
10.98 g/s
Min. flue gas temperature
40
℃
40
℃
40
℃
40
℃
40
℃
40
℃
Max. flue gas temperat-
ure
65
℃
65
℃
65
℃
65
℃
65
℃
65
℃
