Viessmann VITODENS 242-F Technical Manual page 4

Vitodens 222-F, type B2TA
1.1 Product description
1
The Vitodens 222-F gas condensing storage combi boiler is designed
specifically for heating system modernisation projects and as a
replacement for older gas boilers with cylinders installed below. With
an output of up to 35 kW, this heating centre is designed for high DHW
convenience.
The integral loading cylinder with 100 l capacity (up to 26 kW) or
130 l capacity (35 kW) offers the DHW convenience of a separate
DHW cylinder with approximately twice that volume.
As with all Viessmann storage combi boilers, the Vitodens 222-F gas
condensing boiler requires very little space: Width and depth corre-
spond to standard kitchen unit dimensions. The proven MatriX cylinder
burner has a large modulation range of up to 1:7 (35 kW). In conjunc-
tion with the Lambda Pro Control combustion controller the burner
automatically adjusts itself to varying gas qualities and ensures a con-
stantly high standard seasonal efficiency [to DIN] of 98 % (H
cv].
Recommended applications
■ Installation in detached and terraced houses
■ New build (e.g. pre-fabricated houses and housing association
projects): Installation in utility rooms and attics
■ Modernisation: Replacement of gas system boilers, floorstanding
atmospheric gas boilers and oil/gas boilers with DHW cylinders
below.
VIESMANN
4
A Stainless steel Inox-Radial heat exchangers for high operational
reliability, a long service life and high heating output on a very
small footprint
B Modulating MatriX cylinder burner with intelligent Lambda Pro
Control combustion controller for clean combustion and quiet
operation
C Integral diaphragm expansion vessel
D Digital boiler control unit
E Integral, variable speed high efficiency circulation pump
F DHW loading cylinder
Benefits at a glance
■ Standard seasonal efficiency [to DIN]: up to 98 % (H
109 % (H ) [net cv]
i
■ Durable and efficient thanks to the Inox-Radial heat exchanger
■ Modulating MatriX cylinder burner with a long service life thanks to
stainless steel MatriX gauze – resistant to high temperature loads
■ High DHW convenience through enamelled loading cylinder with
100 l capacity (35 kW: 130 l capacity)
■ Energy-saving high efficiency circulation pump (compliant with
Energy Label A)
■ Easy-to-use Vitotronic control unit with plain text and graphic display
■ The programming unit of the control unit can also be fitted on a wall
mounting base (accessories)
■ Lambda Pro Control combustion controller for all gas types – saves
) [gross
on costs, with inspection interval extended to 3 years
s
■ Universal connection sets for individualised installation flush against
the wall
■ No lateral service clearance required
■ Assembly kit (accessories) with the dimensions and design of the
appliance, for the connection of one regulated and one unregulated
heating circuit
Delivered condition
Gas condensing boiler with Inox-Radial stainless steel heat
exchanger, modulating MatriX cylinder burner for natural gas and LPG
to DVGW Code of Practice G260 [Germany], expansion vessel, vari-
able speed high efficiency circulation pump and integral stainless steel
DHW loading cylinder. Fully plumbed and wired.
White epoxy-coated casing.
) [gross cv] /
s
VITODENS