Vitotrans 353 (freshwater module)
Draw-off rate 25 l/min, 48 l/min, 68 l/min
Freshwater module for hygienic DHW heating in accordance with the
instantaneous water heater principle.
Available for wall mounting as type PBS, PBM and PBL or as
type PZS and PZM for installation on the heating water buffer cylinder
Vitocell 100-E, 140-E and 160-E.
Freshwater modules of the type for installation on the heating water
buffer cylinder include a DHW circulation pump and a diverter valve
for directed return stratification (also available for wall mounting as an
option).
All pumps are highly efficient.
Type PBM (48 l/min) and type PBL (68 l/min): Up to 4 equivalent mod-
ules can be linked in cascade.
2.2 Overview of product features
Nominal ca-
pacity in l
Material Version Heat exchanger Colour
Cylinder Type from to Stain-
less
steel
Enam-
elled
Steel
(buf-
fer)
Hori-
zontal
Verti-
cal
Wall
moun-
ted
1 HE 2 HE Sep.
DHW
coil
Vitosil-
ver
White
Vitocell 100-H CHA 130 200 X X X
Vitocell 300-H EHA 160 500 X X X X
Vitocell 100-V CVA 160 1000 X X X X X
Vitocell 100-V CVW 390 390 X X X X
Vitocell 300-V EVA 130 300 X X X X X
Vitocell 300-V EVI 200 500 X X X X
Vitocell 100-W CUG 120 150 X X X X
Vitocell 100-L CVL 500 1000 X X X
Vitocell 100-B CVB 250 500 X X X X X
Vitocell 100-U CVUA 300 300 X X X X X
Vitocell 300-B EVB 300 500 X X X X
Vitocell 340-M SVKA 750 950 X X X X X X
Vitocell 360-M SVSA 750 950 X X X X X X
All cylinders are supplied with thermal insulation. Horizontal and vertical cylinders with a nominal capacity ≤ 300 l are encased in foam. Vertical
cylinders with a nominal capacity > 300 l are supplied with separate thermal insulation.
2.3 Intended use of Viessmann cylinders
The appliance is only intended to be installed and operated in sealed
unvented systems that comply with EN 12828 / DIN 1988, or solar
thermal systems that comply with EN 12977, with due attention paid
to the associated installation, service and operating instructions. DHW
cylinders are only designed to store and heat water of potable water
quality. Heating water buffer cylinders are only designed to hold fill
water of potable water quality. Only operate solar collectors with the
heat transfer medium approved by the manufacturer.
Intended use presupposes that a fixed installation in conjunction with
permissible, system-specific components has been carried out.
Commercial or industrial usage for a purpose other than heating the
building or DHW shall be deemed inappropriate.
Any usage beyond this must be approved by the manufacturer for the
individual case.
Incorrect usage or operation of the appliance (e.g. the appliance being
opened by the system user) is prohibited and results in an exclusion
of liability.
Incorrect usage also occurs if the components in the system are modi-
fied from their intended use (e.g. through direct DHW heating in the
collector).
Adhere to statutory regulations, especially concerning the hygiene of
potable water.
Selecting the cylinder type
The detailed specification and performance parameters, including the
continuous output diagrams for the DHW cylinder can be found in the
datasheets. The following tables help with initial selection.
3.1 Selection according to N
L
factor
The calculated demand factor N (see from page 13) is used to select
the DHW cylinder performance factor N
L
(N
L
≥ N), which can be found
in the first column of the following selection diagrams. DHW cylinders
that have a corresponding performance factor are marked grey.
Example:
DHW heating in a two-family house in conjunction with a solar thermal
system
Demand factor N = 2.3
1
Product information
(cont.)
DHW heating
VIESMANN
7
5414 646 GB
3
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