Vitodens 050-W 1.1 Product Description - Viessmann VITODENS 050-W Technical Manual

Vitodens 050-W
1.1 Product description
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The MatriX-Plus burner and the stainless steel Inox-Radial heat
exchanger ensure the high energy efficiency of this combination, as
well as its long-term high heating convenience.
All sizes of the Vitodens 050-W are equipped with the automatic
Lambda Pro combustion controller. Modulation range 1:8 (up to
25 kW) and 1:10 (32 kW).
The integral, variable speed high efficiency circulation pump reduces
power consumption by up to 70 %.
Recommended applications
■ New build
■ Modernisation
Benefits at a glance
■ Seasonal central heating energy efficiency η
■ Low cycling frequency, even with low heat demand, due to opti-
mised pauses and a wide modulation range down to 1:8 (up to
25 kW) and 1:10 (32 kW)
■ Durable and efficient thanks to Inox-Radial stainless steel heat
exchanger
■ MatriX-Plus burner with Lambda Pro combustion controller for per-
manently high efficiency and clean combustion.
■ Power saving, high efficiency circulation pump
■ Straightforward operation via control unit with LED display and
touch buttons
■ Web-enabled through integral WiFi interface for operation and
service via Viessmann apps, depending on the version
Delivered condition
Wall mounted gas condensing boiler with Inox-Radial heat
exchanger, modulating MatriX-Plus burner for natural gas and LPG
to DVGW Code of Practice G260, hydraulics and variable speed
high efficiency circulation pump.
VIESMANN
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A Modulating MatriX-Plus burner with intelligent Lambda Pro com-
bustion controller for extremely clean combustion and quiet
operation
B Integral diaphragm expansion vessel
C Inox-Radial heat exchanger made from stainless steel – for high
operational reliability, a long service life and high heating output
on a very small footprint
D Variable speed combustion air fan for quiet and economical
operation
E Integral, variable speed high efficiency circulation pump
F Hydraulics
G Digital boiler control unit with 7-segment display
Weather-compensated or constant temperature control unit with inte-
gral WiFi interface subject to version (not available with WiFi module
in all countries).
Fully plumbed and wired. Colour of the epoxy-coated casing: Vito-
pearlwhite.
Integral diaphragm expansion vessel (8 litre capacity).
Preset for operation with natural gas. Conversion within gas groups
E/LL is not required. The conversion to LPG is made at the control
unit (a conversion kit is not required). The gas condensing system
boiler is suitable for operation with a hydrogen blend of up to 20 %
by vol.
Note on multiple connection
If multiple appliances are to be connected to a common flue system,
up to 92 % (label A). the multiple connection version of the appliance will be required.
S
Using appliances for individual connection, or operating a mix of
appliances for individual and multiple connection, on a common flue
system is not permitted.
The multiple connection version is already fitted with an internal back
draught safety device. When installing with multiple connections, it is
essential to order an additional back draught safety device for the
boiler flue connection to each appliance.
The multiple connection version cannot be operated with LPG.
Accessories required (order separately)
Vitodens installation directly on a wall
Pre-plumbing jig for surface mounting:
■ With fixings
■ With valves/fittings
■ With boiler drain & fill valve
■ With gas shut-off valve with thermally activated safety shut-off
valve
VITODENS