Installation Accessories For Vitodens 100-W; Design Information; Siting Conditions For Open Flue Operation (Appliance Type B) - Viessmann VITODENS 050-W Technical Manual

Installation accessories

4.2 Installation accessories for Vitodens 100-W

Neutralising system with wall mounting bracket
Part no. ZK03652
■ For condensing boilers up to 35 kW
■ With neutralising granulate
■ With connection elbows for DN 20 hose connection
■ With 2 corrugated hoses with fixing clamps (719 mm, 0.7 to
1.95 m long)
200

Design information

5.1 Siting, 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 or organosilicon compounds (e.g. siloxanes) may occur,
such as hairdressing salons, printing shops, dry cleaners, laborato-
ries, etc., the Vitodens may only be operated as a room sealed sys-
tem.
If in doubt, please consult us.
Never install the Vitodens in areas subject to very dusty conditions.
5
The installation location must be kept free from frost and must be
adequately ventilated.
Provide a condensate drain and a discharge pipe for the safety valve
in the installation room.
The max. ambient temperature of the system must not exceed
40 °C.
If these instructions are not observed, any consequential appliance
damage directly related to any of these causes is excluded from our
warranty.
Multi boiler systems with flue systems under negative pressure
Systems with several Vitodens with separate hydraulic connections
require a flue gas cascade suitable for negative pressure or individ-
ual flue gas routing for each boiler.
Installation room
Permissible:
■ Siting gas equipment on the same floor
■ Living space with interconnected room air supply
■ Ancillary rooms with interconnected room air supply (larders, base-
ments, utility rooms, etc.)
■ Ancillary rooms with vents to the outside: Ventilation air/extract air
2
150 cm or 2 × 75 cm
wall, up to 35 kW
■ Attic rooms, but only with adequate minimum chimney height to
DIN 18160 – 4 m above inlet (negative pressure operation).
Not permissible:
■ Stairwells and communal hallways. Exception: In detached and
two-family houses of low height: Top edge of floor in the top storey
< 7 m above ground level
■ Bathrooms without outside windows with shaft ventilation
VIESMANN
34
(cont.)
300
361
2
each at the top and bottom of the same
Neutralising granulate
Part no. ZK03654
2.5 kg
To match the neutralising system, part no. ZK03652
Tool kit
Part no.: ZK04569
For maintenance and service
Case with all tools required for maintenance and service: Screw-
driver, extension and inserts
Cylinder demand junction box
Part no.: 7296968
For operation with a cylinder temperature sensor (230 V)
■ 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
The connection piece to the chimney should be as short as possible.
Therefore position the Vitodens as close to the chimney as possible.
The flue should be designed to be as straight as possible. If bends
are unavoidable, do not arrange these directly one after another. It
must be possible to test and clean the entire flue gas path as
required.
No special protective measures or clearances towards combustible
objects, such as furniture, packaging or similar, need to be taken/
observed. The surface temperatures of the Vitodens and the flue
system do not exceed 85 °C at any point.
For further details, see the technical guide on flue systems for the
Vitodens.
Extractors
Operating appliances that extract air to the outside (extractor hoods,
extractors, air conditioning units, etc.) can create negative pressure.
If the boiler is operated at the same time, this can lead to a reverse
flow of flue gas, which can cause life threatening poisoning.
To prevent the reverse flow of flue gas, fit an interlock circuit or
take suitable steps to ensure an adequate supply of combustion air.
Safety equipment for the installation room
Viessmann heat generators are tested and approved in accordance
with all safety regulations and are therefore fail-safe. Unpredictable
external factors may, in the rarest of cases, lead to the potentially
harmful escape of carbon monoxide (CO). For this case, we recom-
mend using a CO limiter.
VITODENS