Vaillant ecoTEC plus Installation And Maintenance Instructions Manual page 62

Appendix
Technical data – Power/loading G31
Nominal heat output
range P at 50/30 °C
Nominal heat output
range P at 80/60 °C
Maximum heat output for
hot water generation
Maximum heat input for
hot water generation
Maximum heat input,
heating side
Minimum heat input
Technical data – Heating
Maximum flow temperat-
ure
Max. flow temperature
adjustment range (default
setting: 75 °C)
Permissible total over-
pressure
Minimum pressure for
full operation
Expansion vessel capa-
city
Circulation water volume
(with reference to
ΔT= 20 K)
Approx. condensate rate
(pH value 3.5 to 4.0) in
50/30 °C heating mode
Remaining feed head of
pump (at nominal circula-
tion water volume)
Technical data – Hot water handling
Lowest water volume
Water volume (at
ΔT = 30 K)
Specific water volume D
(ΔT = 30 K)
Water volume (at
ΔT = 35 K)
Water volume (at
ΔT = 42 K)
Permitted overpressure
Required connection
pressure
Hot water output temper-
ature range
62
938 (VUI GB
386/5‑5 A)
ecoTEC plus
11.5
... 30.1 kW
10.4
... 28.6 kW
38.7 kW
39.5 kW
28.9 kW
11.1 kW
938 (VUI GB
386/5‑5 A)
ecoTEC plus
85 ℃
30 ... 80 ℃
0.3 MPa
(3.0 bar)
0.08 MPa
(0.80 bar)
10 l
1,230 l/h
2.9 l/h
0.025 MPa
(0.250 bar)
938 (VUI GB
386/5‑5 A)
ecoTEC plus
2.0 l/min
18.5 l/min
20.5 l/min
15.9 l/min
13.2 l/min
1.0 MPa
(10.0 bar)
0.035 MPa
(0.350 bar)
35 ... 65 ℃
Installation and maintenance instructions ecoTEC plus 0020209593_01