Connection On The Dhw Side; Dhw Cylinder Selection Tables - Viessmann VITODENS 222-F Series Technical Manual

Design information

DHW cylinder selection tables

DHW cylinders with "-W" in the product name are supplied with a
white finish. Appliances with "-B" or "-V" in the product name are
supplied in Vitosilver (marked in grey in the table).
Vitodens 200-W gas system boilers, cylinder allocation
Rated heating output range [kW]
Vitocell 100-W (type CUGA, CUGA-A) below the boiler
Vitocell 100-W (type CVA, CVAA, CVAA-A) adjacent to
the boiler
Vitocell 100-V (type CVA) adjacent to the boiler
Vitocell 200-W (type EVIA-A) adjacent to the boiler
Vitocell 300-V (type EVIA-A) adjacent to the boiler
Vitocell 100-W (type CVB, CVBB) adjacent to the boil-
er, dual mode
Vitocell 100-W (type CVUB) adjacent to the boiler, dual
mode
Vitocell 100-W (type CVUC-A) adjacent to the boiler,
dual mode (for Vitodens 200-W only)
Vitocell 100-B (type CVB) adjacent to the boiler, dual
mode
Vitocell 300-B (type EVBA-A) adjacent to the boiler,
dual mode
Vitocell 340-M (type SVKC) heating water buffer cylin-
der with DHW heating
Vitocell 360-M (type SVSB) heating water buffer cylin-
der with DHW heating
8.3 Connections on the water side

Connection on the DHW side

Vitodens 200-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.)
Practical cylinder allocation (cylinder capacity in litres)
up to 19.0
120
150
160
200
300
—
160
200
—
300
400
300
300
—
300
708/30
708/30
25.0
120
150
160
200
300
—
160
200
300
500
300
400
300
300
500
300
500
708/30
708/30
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 "Decision making aids regarding
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.
32.0
120
150
160
200
300
500
160
200
300
500
300
400
300
300
500
300
500
708/30
708/30
VIESMANN
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