Dhw Cylinder 3.1 Product Description; Design Information 4.1 Positioning, Installation; Installation Conditions For Open Flue Operation (Appliance Type B); Installation Conditions For Balanced Flue Operation (Appliance Type C) - Viessmann VITODENS 200-W Technical Manual

DHW cylinder
3.1 Product description
For details regarding DHW cylinders, see the technical guide to the
Vitodens up to 35 kW, or separate datasheets.
Design information
4.1 Positioning, installation

Installation conditions for open flue operation (appliance type B)

(Type B and B )
23 33
In rooms where air contamination through halogenated hydrocar-
bons can occur, such as hairdressing salons, printing shops, chemical
cleaners, laboratories, etc., install the Vitodens only as balanced flue
system.
If in doubt, please contact us.
Wall mounted boilers should not be installed in areas subject to very
dusty conditions.
The installation location must be kept free from frost and must be ade-
quately ventilated.
Provide a condensate drain and a blow-off line for the safety valve in
the installation room.
The maximum ambient temperature of the system should not exceed
35 ºC.
If these instructions are not observed, any consequential loss directly
related to any of these causes is excluded from our warranty.
a Bei der Montage in Österreich sind die einschlägigen Sicher-
heitsbestimmungen der ÖVGW-TR Gas (G1), ÖNORM, ÖVGW,
ÖVE und der landesrechtlichen Bestimmungen einzuhalten.
Vitodens 200-W from 60 kW and multi-boiler systems
Install boilers from 50 kW in accordance with the Combustion Order
(FeuVo) [Germany] [or local regulations] in a separate installation
room. Fit the main isolator outside the installation room.
Combustion air apertures
Gas equipment with a total rated output in excess of 50 kW must be
provided with combustion air apertures leading to the outside. The
cross-section should be at least 150 cm
for each kW above 50 kW rated output. This cross-section may not be
split over more than 2 apertures (observe FeuVo and TRGI 2008 point
5.5.4 [or local regulations]).
Example:
Vitodens 200-W, 3 × 60 kW
Total rated output 180 kW
150 cm 2 + 130 × 2 cm 2 = 410 cm 2 or 2 × 205 cm
The combustion air apertures should be at least 410 cm
2
205 cm .
Multi-boiler systems with pressurised flue gas systems
The Vitodens 200-W multi-boiler systems with common pressurised
flue gas systems are designed for open flue operation (type B).

Installation conditions for balanced flue operation (appliance type C)

The Vitodens can be installed as appliance type C
or C to TRGl 2008, for balanced flue operation independent of the
63x
size and ventilation of the installation room.
VITODENS 200-W
For further details, see the technical guide on flue gas systems for the
Vitodens.
Installation room (up to 50 kW)
Permissible:
■ Boiler installation on the same floor
■ Adjacent rooms with interconnected room ventilation (larders, base-
■ Attic rooms, but only with adequate minimum chimney height to DIN
Not permissible:
■ Stair wells and common hallways; exception: Detached and two-
■ Bathrooms and toilets without outside windows with duct ventilation
■ Rooms where explosive or flammable materials are stored
■ Rooms ventilated mechanically or via individual duct systems to DIN
Observe all local fire regulations.
Connection on the flue gas side
(for further details, see the technical guide "Flue gas systems for the
Vitodens")
The connecting piece to the chimney should be as short as possible.
Therefore position the Vitodens as closely to the chimney as possi-
ble.
No special protective measures or clearances towards combustible
2 and should be 2 cm 2 larger
objects, e.g. furniture, cartons or similar, need to be taken/observed.
The surface temperatures of the Vitodens and the flue system never
exceeds 85 ºC anywhere.
Extractors
When installing devices with extraction to the outside (cooker hoods,
extractors, etc.), ensure that air extraction will not create negative
pressure inside the installation room. A return flow of flue gases could
2 .
result, if the ventilation system and the Vitodens were to operate simul-
2 or 2 ×
taneously. In such cases, install an interlocking circuit.
For this, the internal extension H2 (accessories) can be used. This
switches the extractors OFF when the burner is started.
, C , C , C It may, for example, be installed in recreation rooms, in other living
13x 33x 43x 53x
space, in ancillary rooms without ventilation, in cupboards (open at the
top) and recesses without maintaining minimum clearances to com-
bustible parts as well as in attic rooms (pitched attics and ancillary
rooms) where the balanced flue pipe can be directly routed through
the roof. Since the flue pipe connecting piece for balanced flue oper-
ation is surrounded by combustion air (coaxial pipe), no clearances
towards combustible parts need to be maintained (for further details,
see the technical guide "Flue gas systems for the Vitodens").
The installation location must be safe from the risk of frost.
Provide a condensate drain and a blow-off line for the safety valve in
the installation room.
ment, utility rooms, etc.)
18160 – 4 m above inlet (negative pressure operation).
family homes of low height (top edge of floor in the top storey
< 7 m above ground level)
18117-1.
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