7.4 Vitocell 300-B, type EVBA-A
For DHW heating in conjunction with boilers and solar collectors for
dual mode operation.
Suitable for the following systems:
■ DHW temperature up to 95 °C
■ Heating water flow temperature up to 160 °C
■ Solar flow temperature up to 160 °C
■ Operating pressure on the heating water side up to 10 bar
(1 MPa)
■ Operating pressure on the solar side up to 10 bar (1 MPa)
■ Operating pressure on the DHW side up to 10 bar (1 MPa)
Type EVBA-A EVBA-A
Cylinder capacity l 300 500
Internal indirect coil upper lower upper lower
DIN registration number Applied for
Continuous output
For DHW heating from 10 to 45 °C and a heating water
flow temperature of … at the heating water flow rate sta-
ted below
90 °C
kW 42 51 57 69
l/h 1033 1247 1409 1694
80 °C
kW 35 42 48 59
l/h 860 1039 1175 1414
70 °C
kW 28 34 38 46
l/h 684 827 936 1128
60 °C
kW 20 25 28 34
l/h 501 607 687 830
50 °C
kW 12 15 16 20
l/h 294 358 406 493
Continuous output
For DHW heating from 10 to 60 °C and a heating water
flow temperature of … at the heating water flow rate sta-
ted below
90 °C
kW 36 43 49 59
l/h 613 740 838 1011
80 °C
kW 28 34 38 46
l/h 482 584 662 799
70 °C
kW 20 24 27 33
l/h 340 413 469 568
Heating water flow rate for the stated continuous outputs
m
3
/h
3.0 3.0 3.0 3.0
Max. connectable heat pump output
At a heating water flow temperature of 55 °C and a DHW tempera-
ture of 45 °C
For the specified heating water flow rate (both indirect coils connec-
ted in series)
kW 8.0 10.0
Standby heat loss kWh/24 h 1.06 1.37
Standby capacity V
aux
l 139 235
Solar capacity V
sol
l 161 265
Dimensions
Length a (Ø) – Incl. thermal insulation mm 667 1022
– Excl. thermal insulation mm – 715
Width b – Incl. thermal insulation mm 744 1084
– Excl. thermal insulation mm – 954
Height c – Incl. thermal insulation mm 1734 1852
– Excl. thermal insulation mm – 1667
Height when
tilted
– Incl. thermal insulation mm 1825 –
– Excl. thermal insulation mm – 1690
Weight incl. thermal insulation kg 113 123
Heating water capacity l 6.7 11.0 10.0 12.9
Heating surface
m
2
0.9 1.5 1.3 1.7
Connections (male thread)
Indirect coils R 1 1
Cold water, DHW R 1 1¼
DHW circulation R 1 1
Energy efficiency class A A
Information regarding the upper indirect coil
The upper indirect coil is designed for connection to a heat genera-
tor.
Information regarding the lower indirect coil
The lower indirect coil is designed for connection to solar collectors.
To install the cylinder temperature sensor, use the threaded elbow
with sensor well included in standard delivery.
Information regarding continuous output
When designing systems with the specified or calculated continuous
output, select a matching circulation pump. The stated continuous
output is achieved only if rated boiler heating output ≥ continuous
output.
DHW cylinders
(cont.)
56
VIESMANN
VITOSOL
7
5822 440 GB
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