Design Information 6.1 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

Installation accessories
C
B B
A Flue gas header
B Flue gas non-return device (for installation in the Vitodens)
C Terminal with siphon
Design information
6.1 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.
6
Multi-boiler systems with flue gas systems operating with posi-
tive or negative pressure
Systems with several Vitodens with separate hydraulic connections
require a flue gas cascade suitable for positive or negative pressure
(see the technical guide "Flue gas systems for the Vitodens") or an
individual flue for each boiler.
Installation room
Permissible:
■ Boiler installation on the same floor
■ Living space with interconnected room ventilation
■ Adjacent rooms with interconnected room ventilation (larders, base-
ment, utility rooms, etc.)

Installation conditions for balanced flue operation (appliance type C)

The Vitodens can be installed as appliance type C
C or C to TRGl 2008, for balanced flue operation independent
63x 83x
of the size and ventilation of the installation room.
VIESMANN
50
(cont.)
A
B B
, C , C , C ,
13x 33x 43x 53x
■ Two-boiler system
– 19 and 26 kW: Part no. Z008 384
– 35 kW: Part no. Z008 385
■ Three-boiler system
– 19 to 35 kW: Part no. Z008 386
■ Four-boiler system
– 19 to 35 kW: Part no. Z008 387
■ Adjacent rooms with apertures to the outside (ventilation air/extract
air 150 cm 2 or 2 × 75 cm 2 each at the top and bottom of the same
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:
■ Stair wells and common hallways; exception: Detached and two-
family homes of low height (top edge of floor in the top storey <
7 m above ground level)
■ 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
18117-1.
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
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
result, if the ventilation system and the Vitodens were to operate simul-
taneously. In such cases, install an interlocking circuit.
VITODENS