Viessmann VITOCELL 100-U - Connections on the Heating Water Side; Sample Applications; Cylinder Loading Systems under Various Connection Conditions

■ Flow regulating valve
We recommend installing a flow regulating valve and adjusting the
maximum water flow rate in accordance with the 10-minute peak
output (see table in the datasheet).
■ Drinking water filter
According to DIN 1988, a drinking water filter should be installed in
systems with metal pipework. A drinking water filter should also be
installed in plastic pipework. The installation of a drinking water filter
prevents dirt from being introduced into the drinking water system.
Connections on the heating water side
F
E
C
B B B B
D
A
WW/WT
HV
HR
KW
M
A
Vitocell 100-L (here: 500 l capacity)
B
Vent connector
C
Vitotrans 222
D
Boiler
E
Common cold water connection with safety assembly to
DIN 1988
F
Draw-off points (DHW)
HR Heating water return
HV Heating water flow
KW Cold water
WW/WT Hot water inlet from the heat exchanger
7.3 Sample applications
Cylinder loading systems under various connection conditions
The cylinder loading system can be integrated into systems with vary-
ing operating parameters and control systems.
The electrical wiring and the hydraulic connection of the cylinder load-
ing system must be matched to the hydraulic and the control condi-
tions.
Possible installation of the cylinder loading system in conjunction
with:
■ Vitotronic boiler control units (modulating boiler operation)
■ Vitotronic 200-H with third party control units and modulating boiler
operation
■ Constant flow temperatures (e.g. standard boiler)
■ District heating system.
Corresponding water and wiring designs are shown on the following
pages.
Note
In multi boiler systems, connect the cylinder loading system to the
Vitotronic 300-K.
Installation — cylinder loading system
(cont.)
DHW heating
VIESMANN
45
5414 646 GB
7