Viessmann vitodens Technical Manual page 6

1.1 Product description
333
Vitodens 333
1
The Vitodens 333 compact boiler combines
the benefits of the Vitodens 300 condensing
boiler with those of a powerful DHW
loading cylinder offering a capacity of
86 litres.
Innovative heating technology with an
Inox Radial heat exchanger and a
MatriX compact burner plus compact
modular design guarantee the high DHW
convenience generally only available with
DHW cylinders twice as large.
The dimensions of Vitodens 333 have
been matched to common patterns of
kitchen and furniture makers, thereby
enabling easy integration in living areas. A
height of just under 140 cm means that it
also fits under the eaves and in niches.
All electrical connections are easily
accessible, whilst all hydraulic
components are pre-assembled into a
single unit. This allows the rapid
installation of Vitodens 333. The new
Vitotronic control unit has been located at
the top of the boiler. This not only makes
operating easier but also brings
advantages for service and maintenance.
Benefits at a glance
H Compact gas fired condensing boiler,
4.5 to 26.0 kW.
H Standard efficiency: up to 109 %.
H The stainless steel Inox Radial heating
surface ensures high operational
reliability and a long service life.
H MatriX compact gas burner,
modulation range 1 : 4.
H Utilisation of condensing technology
even for DHW heating over the entire
DHW loading through electronic
loading control.
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The MatriX compact gas burner ensures
environmentally responsible operation
with extremely clean combustion.
Together with the stainless steel heat
exchanger and the DHW loading cylinder
it also ensures that DHW at the required
temperature is always available in large
quantities and at a constant temperature.
An electronic loading control safeguards
the utilisation of condensing technology
over the entire DHW loading process.
H Compact dimensions and low height
ensure flexibility in selecting the
installation location.
H The emissions fall substantially below
the limits set for the "Blue Angel"
certificate of environmental excellence.
H Vitotronic control units for room
temperature-dependent or weather-
compensated mode, with integral
diagnostic system and Optolink laptop
interface; capable of communicating
with Vitodata.
H Particularly easy to install, maintain and
service, due to modular design
generous wiring chamber.
Application recommendations
The automatic volume flow and flue gas
adaptation, compact design and the
integral DHW heating (DHW calorifier)
makes this system suitable for:
H Installations in detached and
terraced houses
H New builds (e.g. pre-fabricated houses
and housing association projects):
Installation in utility rooms and attics
(long pane of the roof)
H Modernising: replacement of
instantaneous water heaters,
free-standing atmospheric gas fired
boilers and oil/gas fired boilers with
DHW cylinder installed below the boiler.
H Low power consumption through
governed AC fan and heating circuit
pump.
H Automatic flue gas adaptation ensures
permanently high efficiency.
H DHW performance factor (N ) to 2.0
L
(boiler with 26 kW) for high DHW
convenience.
H Space saving, because clearances at the
boiler sides are no longer required.
VITODENS