Appendix
0020230535_05 ecoFIT pure Installation and maintenance instructions
43
VU 306/6-3 OV (H-
GB)
VU 356/6-3 OV (H-
GB)
Gas category
I
2H
I
2H
Diameter of the gas pipe
1/2 inch
1/2 inch
Diameter of the heating connec-
tions
3/4 inch
3/4 inch
Expansion relief valve connector
(min.)
15 mm
15 mm
Condensate drain pipework (min.)
21.5 mm
21.5 mm
G20 gas supply pressure
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
Gas flow at P max.
–
hot water
(G20)
3.8 m
³
/h
3.8 m
³
/h
Gas flow at P max.
–
heating mode
(G20)
3.2 m
³
/h
3.8 m
³
/h
Gas flow at P min. (G20)
0.756 m
³
/h
0.762 m
³
/h
CE number (PIN)
CE-0063CP3646
CE-0063CP3646
Flue gas mass rate in heating
mode at P min.
3.27 g/s
3.30 g/s
Flue gas mass rate in heating
mode at P max.
13.8 g/s
16.1 g/s
Flue gas mass rate in hot water
handling mode at P max.
16.1 g/s
16.1 g/s
Flue gas temperature (80 °C/60 °C)
at P max.
86
℃
90
℃
Flue gas temperature (80 °C/60 °C)
at P min.
56
℃
56
℃
Flue gas temperature (50 °C/30 °C)
at P max.
60
℃
62
℃
Flue gas temperature (50 °C/30 °C)
at P min.
37
℃
37
℃
Flue gas temperature in hot water
handling mode
75
℃
75
℃
Flue gas temperature when over-
heating
104
℃
104
℃
Released system types
C13, C33, C43, C53
C13, C33, C43, C53
Nominal efficiency at 80/60 °C
99.2 %
97.5 %
Nominal efficiency at 50/30 °C
104.0 %
100.2 %
Nominal efficiency at 40/30 °C
106.0 %
106.0 %
Nominal efficiency in partial load
operation (30%) at 40/30 °C
109.8 %
108.5 %
NOx class
5
6
Product dimensions, width
375 mm
375 mm
Product dimensions, depth
295 mm
295 mm
Product dimensions, height
602 mm
602 mm
Net weight
22 kg
23 kg
Weight when filled with water
27 kg
28 kg
Technical data
–
Electrics
VU 126/6-3 OV (H-
GB)
VU 156/6-3 OV (H-
GB)
VU 186/6-3 OV (H-
GB)
VU 256/6-3 OV (H-
GB)
Electric connection
230 V / 50 Hz
230 V / 50 Hz
230 V / 50 Hz
230 V / 50 Hz
Built-in fuse (slow-blow)
T2/2A, 250V
T2/2A, 250V
T2/2A, 250V
T2/2A, 250V
Max. electrical power consump-
tion
23 W
29 W
35 W
35 W
Standby electrical power con-
sumption
2 W
2 W
2 W
2 W
Level of protection
IPX4D
IPX4D
IPX4D
IPX4D