Cold water installation of Vitodens 200-W gas condensing combi boiler
Safety assembly
D
A
B
E
D
C
F
GH L
K
M
A
Visible drain pipe outlet point
B
Safety valve
C
Non-return valve
D
Drain outlet
E
Shut-off valve
F
Cold water
G
Heating flow
H
DHW
K
Gas connection
L
Cold water
M
Heating return
A safety valve to DIN 1988 only has to be installed if the mains water
supply pressure exceeds 10 bar (1 MPa),
a
: 6 bar (0.6 MPa), and
no DHW pressure reducing valve is used (in accordance with
DIN 4753).
Install a safety valve if the cold water supply is equipped with a non-
return valve. In addition remove the toggle from the cold water shut-
off valve.
Non-return valves are commonly found in pressure reducers and
combined shut-off and non-return valves.
Shock arrestor
Ø 86
115
R½"
If the pipework to which the Vitodens is connected also supplies
draw-off points at which water hammers may occur (e.g. pressure
washers, washing machines or dishwashers): Install shock arrestors
near the source of the water hammer (recommended).
Flexofit S made by Flamco-Flexcon
or
Reflex made by Wink Pannhoff GmbH (available from your
local dealer).
Design information
(cont.)
128
VIESMANN
VITODENS
8
5853906
Summary of Contents for Vitodens 200-W B2HE
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