Viessmann Vitodens 200-W B2HE Technical Manual Download

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The Vitodens 222-W is a particularly space saving, wall mounted
gas condensing storage combi boiler for situations where high DHW
convenience is required. The heat cell comprises the proven stain-
less steel Inox-Radial heat exchanger, the modulating MatriX-Plus
gas burner and the automatic Lambda Pro Control Plus combustion
controller.
The integral 46 l stainless steel loading cylinder offers the same
DHW convenience as a separate 150 l DHW cylinder with internal
indirect coil. DHW is available immediately and constantly at the
required temperature, even simultaneously at different draw-off
points. In addition to the loading cylinder, all the most important sys-
tem components, such as the heating water expansion vessel,
pumps and safety valves, are integrated and fully fitted. All this –
with a total weight of max. 68 kg and in a casing that fits into a
standard 600 mm wide kitchen unit space.

Recommended applications

■ Installation in detached and terraced houses
■ New build (e.g. prefabricated houses and developer projects):

Installation in utility rooms and attics

■ Modernisation: Replacement of gas system boilers, floorstanding

atmospheric gas boilers and oil/gas boilers with DHW cylinders
installed below.

■ Replacement of boilers in various types of systems, including

those with several heating circuits and underfloor heating

Benefits at a glance

Control unit with 7-inch screen
■ Seasonal central heating energy efficiency η

up to 94 % (label A).

■ Low cycle frequency, even with low heat demand, due to optimised

pauses and a wide modulation range down to 1:17

■ Durable and efficient thanks to Inox-Radial stainless steel heat

exchanger

■ MatriX-Plus gas burner with Lambda Pro Plus combustion control-

ler for permanently high efficiency and clean combustion.

■ Power saving, high efficiency circulation pump
■ Colour touchscreen with plain text and graphic display, commis-

sioning assistant, energy consumption indicators and the option of
operation from a mobile device

■ Web-enabled through integral WiFi interface for operation and

service via Viessmann app

Benefits at a glance

Control unit with 3.5-inch screen
■ Seasonal central heating energy efficiency η

up to 94 % (label A).

■ Low cycle frequency, even with low heat demand, due to optimised

pauses and a wide modulation range down to 1:17

■ Durable and efficient thanks to Inox-Radial stainless steel heat

exchanger

■ MatriX-Plus gas burner with Lambda Pro Plus combustion control-

ler for permanently high efficiency and clean combustion.

■ Power saving, high efficiency circulation pump
■ Black/white screen with plain text and graphic display, commis-

sioning assistant, energy consumption indicators and the option of
operation from a mobile device

■ Web-enabled through integral WiFi interface for operation and

service via Viessmann app

Delivered condition

Gas condensing boiler with Inox-Radial heat exchanger, modulating
MatriX-Plus gas burner for natural gas and LPG to DVGW Code of
Practice G260 [Germany], expansion vessel, variable speed high
efficiency circulation pump and integral stainless steel DHW loading
cylinder. Fully plumbed and wired.
Weather-compensated or constant temperature control unit with inte-
gral WiFi interface.
White epoxy-coated casing.
Integral diaphragm expansion vessel (10 l capacity).
Integral refilling device for heating water.
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).

Accessories required (order separately)

Pre-plumbing jig with:
■ Fixings
■ Valves/fittings
■ DHW safety valve
■ Boiler drain & fill valve
■ Gas shut-off valve with thermally activated safety shut-off valve

For either surface or flush mounting

Tested quality

CE designation according to current EU Directives

Meets the requirements for the "Blue Angel" ecolabel to RAL UZ 61.

Vitodens 222-W

(cont.)

VIESMANN

VITODENS

5853906