6.12 Solar accessories
Solar heat exchanger set (Divicon)
Part no. ZK03798
For connecting solar thermal systems to heat pump compact appli-
ances
■ Connections matched to Solar-Divicon for direct mounting below
the Solar-Divicon
■ Suitable for systems to DIN 4753. Up to a total water hardness of
20 °dH (3.6 mol/m
3
)
■ Max. collector surface area that can be connected:
– 5 m
2
flat-plate collectors
– 3 m
2
tube collectors
Components:
■ Circulation pump
■ Plate heat exchanger
■ Connection pipes G ¾ (male thread)
■ Sensor well for cylinder temperature sensor of the solar control
unit
■ Thermal insulation
Note
The hydraulic connections for the solar circuit can optionally be
routed either upwards or downwards from the appliance.
Specification
Permissible temperatures
Solar side
140 °C
Heating water side
110 °C
DHW side
– For boiler operation
95 °C
– For solar operation
60 °C
Permissible operating pressure
10 bar (1.0 MPa)
Solar side, heating and DHW side
Test pressure
13 bar (1.3 MPa)
Solar side, heating and DHW side
Circulation pump
Power supply
230 V/50 Hz
IP rating
IP 42
Hydraulic connections upwards and downwards
17
17
330
84
32
132
75
175
250
66
83
186
D
A
B
C
A B
C D
A
Solar circuit return
B
Solar circuit flow
C
DHW cylinder return
D
DHW cylinder flow
Hydraulic connections downwards
17
330
84
32
75
83
115
C C D
250
132
175
D
A
B
186
A B
A
Solar circuit return
B
Solar circuit flow
C
DHW cylinder return
D
DHW cylinder flow
Installation accessories
(cont.)
90
VIESMANN
VITOCAL
6
5831388
