Connections On The Water Side; Connection On The Dhw Side - Viessmann VITODENS 050-W Technical Manual

Design information
Replacing a Thermoblock-VC/-VCW with a Vitodens 050-W, 25 and 32 kW
A
Ø 110
Thermoblock
120
200
A Open flue operation
B Room sealed operation
Dim. Flush mounting
a mm 786 +25/-0

5.2 Connections on the water side

Connection on the DHW side

Vitodens 050-W gas condensing combi boiler
For the DHW connection, connection sets for surface or flush mount-
ing are available as accessories. The instantaneous water heater
provides direct DHW heating.
If used in conjunction with galvanised pipes, note that the instanta-
neous water heater is designed as a stainless steel plate heat
exchanger with copper solder joints (observe the flow rule).
In existing installations (modernisation projects), the risk of electro-
lytic corrosion is low, since a protective layer will have formed on the
inside of the pipes.
VITODENS
(cont.)
B
Ø 96
Thermoblock
Surface mounting
802 +50/-0
120
200
Note
Height of flue gas connection in combination with balanced flue bend
60/100. If using a balanced flue inspection bend 60/100, the height is
reduced by 10 mm.
If DHW is to be drawn simultaneously from several points, we rec-
ommend the installation of a separate DHW cylinder in conjunction
with the gas system boiler (see "Selection guide for DHW heating").
With water hardness of 20 °dH and higher, we recommend the use
of a water treatment system in the cold water line when heating
DHW.
Vitodens
VIESMANN
45
5