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Preparing a multi-cylinder bank
Only for 300 and 500 litre capacity
Dimensions of the connections of Viessmann headers (accessories).
Storage capacity per cylinder litres
Number of cylinders
Connections
Heating water flow and return
Cold water, DHW
Z
Z
HV
EV
KW
ELV Air vent valve
EV
Drain valve
HR
Heating water return
HV
Heating water flow
KW Cold water
TR
Control thermostat
WW DHW
Z
DHW circulation
6
DN
R (male thr)
H Install the control thermostat
WW
into the final cylinder, as viewed
from the heating water flow
(see diagram).
Z
H Connect the cold water supply
ELV TR
opposite the DHW connection.
Note
The "DHW" connection can, contrary
to the diagram, also be connected on
HR
the same side as the heating water
flow, and the "cold water"
connection can be arranged on the
same side as the heating water
return. This equally safeguards the
even heating and balanced DHW
drawing from every cylinder.
300
500
2
2
50
50
1¼"
1¼"
3
50
1½"
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