Viessmann VITOGAS - DHW Cylinder Connection on the DHW Side; Installation Accessories 4. 1 Accessories for Connecting DHW Cylinder to Boiler; System Connections with Vitocell

3.5 DHW cylinder connection on the DHW side
Connection to DIN 1988, example: Vitocell 100-V
A
DHW
B
DHW circulation line
C
DHW circulation pump
D
Spring-loaded check valve
E
Blow-off line with a visible outlet
F
Safety valve
G
Shut-off valve
H
Flow regulating valve
(Recommendation: we recommend installing this valve and
adjusting the max. water flow rate in accordance with the 10
minute peak output of the DHW cylinder.)
K
Pressure gauge connector
L
Non-return valve
M
Drain
N
Cold water
O
Drinking water filter
P
Pressure reducer to DIN 1988-2, issue Dec, 1988
R
Non-return valve/pipe separator
S
Diaphragm expansion vessel, suitable for drinking water
Information on drinking water filter
According to DIN 1988-2, a drinking water filter should be installed in
systems with metal pipework. Viessmann and DIN 1988 also recom-
mend the installation of a drinking water filter when using plastic pipes,
to prevent contamination entering the DHW system.
The safety valve must be installed. Recommendation: Install the safety valve higher than the top edge of
the cylinder. This protects the valve against contamination, scaling and
high temperatures. The DHW cylinder must not be drained when work-
ing on the safety valve.
Installation accessories
4.1 Accessories for connecting DHW cylinder to boiler
System connections with Vitocell
Complete with:
■ Connecting pipes
■ Circulation pump, fully wired
■ Check valve
For part numbers for the relevant cylinder types, see pricelist.
DHW cylinder
(cont.)
34
VIESMANN
VITOGAS
4
5822 428 GB