Product Description - 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
Siting conditions for open flue operation (appliance type B)
(Type B and B )
23 33
In rooms where air contamination from halogenated hydrocar-
bons may occur, such as hairdressing salons, printing shops, chemi-
cal cleaners, laboratories, etc., operate the Vitodens only as a room
sealed system.
If in doubt, please contact us.
3
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 discharge pipe for the safety valve
in the installation room.
The maximum ambient temperature of the system should not exceed
35 °C.
If these instructions are not observed, any consequential appliance
damage directly related to any of these causes is excluded from our
warranty.
a When installing in Austria, observe all current safety regulations
as defined by ÖVGW-TR Gas (G1), ÖNORM, ÖVGW, ÖVE and
locally applicable standards.
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 mains isolator outside the installation room.
Combustion air apertures
Gas equipment with a total rated heating 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
larger for each kW above 50 kW rated heating output. This cross-sec-
tion 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 heating output 180 kW
150 cm 2 + 130 × 2 cm 2
The combustion air apertures should measure at least 410 cm
2
205 cm .
Multi boiler systems with flue systems under positive pressure
The Vitodens 200-W multi boiler systems with common pressurised
flue systems are designed for open flue operation (type B).
For further details, see the technical guide on flue systems for the
Vitodens.
Installation room (up to 50 kW)
Permissible:
■ Boiler installation on the same floor
■ Adjacent rooms with interconnected room air supply (larders, base-
ments, utility rooms etc.)
■ Attic rooms, but only with adequate minimum chimney height to
DIN 18160 – 4 m above inlet (negative pressure operation).
VIESMANN
28
2 and should be 2 cm
= 410 cm 2 or 2 × 205 cm 2 .
Not permissible:
■ Stairwells and communal hallways; exception: Detached and two-
family houses of low height (top edge of floor in the top storey <
7 m above ground level)
■ Bathrooms and toilets without outside windows with shaft ventilation
■ Rooms where explosive or flammable materials are stored
■ Rooms that are ventilated mechanically or via individual duct sys-
tems to DIN 18117-1.
Observe all local fire regulations.
Connection on the flue gas side
(For further details, see the technical guide "Flue systems for the
Vitodens")
The connection 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
objects, e.g. furniture, packaging or similar, need to be taken/
observed.
The surface temperatures of the Vitodens and the flue system never
exceed 85 ºC.
Extractors
When installing appliances with extraction to the outside (cooker
hoods, extractor fans etc.), ensure that air extraction will not create
negative pressure inside the installation room. A return flow of flue
gases could otherwise result if the ventilation system and the Vitodens
are operated simultaneously. In such cases, install an interlock cir-
cuit.
For this, the internal extension H2 (accessories) can be used. This
2
switches the extractors off when the burner is started.
Safety equipment for the installation room
Viessmann heat sources are tested and approved in accordance with
all safety regulations and are therefore fail-safe. Unpredictable, exter-
nal factors may, in the rarest of cases, lead to the potentially harmful
escape of carbon monoxide (CO). For this case, we recommend using
a CO limiter. This can be ordered as a separate accessory (part no.
7499 330).
2 or 2 ×
VITODENS 200-W