From - Viessmann Vitodens 100-W Compact Domestic Product Manual

VITODENS 242-F SOLAR STORAGE COMBI
This storage combination floor standing condensing boiler is designed specifically for direct
connection to a solar thermal system. Incorporating three technologies in one; gas condensing
boiler, DHW cylinder and solar control package, where space is at a premium.
MatriX cylinder burner
Patented technology, manufactured
by Viessmann
Low emissions
Long service life through stainless steel
MatriX gauze
Optimum matching of heat exchanger
and burner
Inox-Radial heat exchanger
Self-cleaning smooth stainless steel surface
Same flow direction for flue gas
and condensate
Highly corrosion resistant through
high-grade stainless steel (type SS 1.4571)
10 year warranty against corrosion
Durable and efficient through the stainless
steel Inox-Radial heat exchanger
MatriX cylinder burner with Lambda Pro
combustion control for permanent
high efficiency and clean combustion
Take advantage of these benefits
Can reduce your hot water energy usage
by 60%
Unvented cylinder with 170 litre
capacity and solar indirect coil
DHW circulation pump can be integrated
inside the appliance
Dynamic burner cycling reduces the
number of burner starts over the year
by a third
SEDBUK (2005) seasonal efficiency 91%
Wide modulation ratio of 1:4, e.g.
6.5 kW to 26 kW, ensures optimised
burner operation
For natural gas and LPG (conversion
is made on valve settings and
controller coding)
Factory fitted cylinder solar pump
Unvented safety kit and DHW
expansion vessel
Standard top connection set
Standard RH or LH side connection set
Easy installation
Optional connection sets for top level
(7348552) or side pipe installation*
(7347985)
No side clearance required, boiler stands
flush to the wall
All components are factory assembled and
wired, saving installation time
CH output range
Boilers within the range offer the following
DHW outputs of 19 kW, 26 kW, ideal
for refurbishments
Flow rates are up to 20 l/min
Award winning control unit
The Vitodens 242-F is available
with the Vitotronic 200 HO1A weather
compensation controller with a 7
day programmer
The control can be sited up to 5 m
away from the boiler enabling installation
in areas with restricted access, e.g. If the
boiler is installed in a garage or loft
Cylinder Loading System (CLS)
Most unvented cylinders use a heating coil
to heat up the cylinder. The CLS technology
replaces the coil with a plate heat exchanger.
A DHW pump circulates the cold water from
the bottom of the cylinder, through the plate
heat exchanger and puts the hot water back
to the top of the cylinder.
Solar options
Comprehensive range of complete solar
packs offered, please see solar kits
*Must be ordered separately
16/17
The graphic display of the new
Vitotronic control unit can also
display the solar yield
Cylinder in 242-F includes solar coil