Pressure drop on the heating water side
500 600
800 1000
2000
3000
4000 5000 6000
8000 10000
3
4
5
6
8
10
20
30
40
50
60
80
100
200
300
400
500
600
800
1000
mbar
0.3
0.4
0.5
0.6
0.8
1
2
3
4
5
6
8
10
20
30
40
50
60
80
100
kPa
Pressure drop
Heating water flow rate in
l/h
A
B
C
A
Cylinder capacity 300 l
B
Cylinder capacity 390 l
C
Cylinder capacity 500 l
Pressure drop on the DHW side
500 600
800 1000
2000
3000
4000 5000
0.3
0.4
0.5
0.6
0.8
1
2
3
4
5
6
8
10
kPa
3
4
5
6
8
10
20
30
40
50
60
80
100
mbar
Pressure drop
DHW flow rate in
l/h
6000
8000 10000
A
C B
A
Cylinder capacity 300 l
B
Cylinder capacity 390 l
C
Cylinder capacity 500 l
Immersion heater EHE
Part no. Z012684
For installation in the connector in the
upper
section of the
Vitocell 100-V, type CVWA with cylinder capacity
300 l
/
390 l
/
500 l
■ Use the immersion heater only with soft to medium hard water with
a calcium hardness up to 14 °dH (hardness level 2, up to
2.5 mol/m
3
).
■ The heating output can be selected: 2, 4 or 6 kW
Components:
■ High limit safety cut-out
■ Temperature controller
Note
■ A contactor relay, part no. 7814681, is required for switching the
immersion heater via the heat pump.
■ The immersion heater is not intended for operation with 230 V~. If
no 400 V connection is available, use commercially available
immersion heaters.
Specification
Output
kW
2
4
6
Rated voltage
3/N/PE 400 V/50 Hz
IP rating
IP 44
Rated current
A
8.7
8.7
8.7
Heat-up time from 10 to 60 °C
– Immersion heater in the bot-
tom section
h
8.5
4.3
2.8
– Immersion heater in the top
section
h
4.0
2.0
1.3
Content that can be heated by
the immersion heater
– Immersion heater in the bot-
tom section
l
294
– Immersion heater in the top
section
l
136
Installation accessories
(cont.)
74
VIESMANN
VITOCAL
6
5831388
