Installation Conditions For Balanced Flue Operation (Appliance Type C) - Viessmann VITODENS 300-W Technical Manual

Design information

Installation conditions for balanced flue operation (appliance type C)

The Vitodens can be installed as appliance type C
C , C or C to TRGl 2008, for balanced flue operation inde-
63x 83x 93x
pendent of the size and ventilation of the installation room.
It may, for example, be installed in recreation rooms, in other living
spaces, in ancillary rooms without ventilation, in cupboards (open at
the top) and recesses, without maintaining minimum clearances to
combustible parts, as well as in attic rooms (pitched attics and long
panes) where the balanced flue pipe can be routed directly through the
roof. Since the flue pipe connection for balanced flue operation is sur-
rounded by combustion air (coaxial pipe), no clearances towards com-
bustible parts need to be maintained (for further details, see the tech-
nical guide "Flue systems for the Vitodens").
The installation room must be safe from the risk of frost.
Provide a condensate drain and a discharge pipe for the safety valve
in the installation room.
Electrical interlocks for extractors (extractor hoods, etc.) are not
required with balanced flue operation.
Intended use
The appliance is only intended to be installed and operated in sealed
unvented heating systems that comply with EN 12828, with due atten-
tion paid to the associated installation, service and operating instruc-
tions. It is only designed for the heating of water that is of potable water
quality.
Intended usage presupposes that a fixed installation in conjunction
with permissible, system-specific components has been carried out.
Commercial or industrial usage for a purpose other than heating the
building or DHW does not comply with regulations.
Operation of the Vitodens in wet areas
The Vitodens is approved for installation in wet areas (e.g. bath or
shower rooms) (protection IP X4 D, splashproof).
When installing the Vitodens in wet areas, observe the safety zones
and minimum wall clearances according to VDE 0100 [or local regu-
lations] (see also "Electrical safety area"). The Vitodens may be instal-
led in safety area 1 if hosed water (e.g. from massage showers) is
prevented.
Electrical safety area
6
e a
A r
2
Electrical connection
The power supply must comply with the requirements of your local
power supply utility and current VDE [or local] regulations (a: ÖVE
regulations).
VIESMANN
52
(cont.)
, C , C , C
13x 33x 43x 53x
6 0
0
A r
e a
1
A r
e a
0
Area 2
, Installation in a garage
Tests carried out by the Gaswärme-Institut e.V., Essen, have con-
firmed that the Vitodens is suitable for installation in garages.
When installing this boiler in garages, maintain a clearance between
the floor and the burner of at least 500 mm. Install a frame or deflector
(provided on site) to protect the boiler against mechanical damage.
Safety equipment for the installation room
Viessmann boilers are tested and approved in accordance with all
safety specifications, and are therefore fail-safe. Unforeseeable exter-
nal influences may very occasionally lead to harmful carbon monoxide
(CO) escaping. In this instance, we recommend using a CO limiter.
This can be ordered as a separate accessory (part no. 7499 330).
Any usage beyond this must be approved by the manufacturer for the
individual case.
Incorrect usage or operation of the appliance (e.g. the appliance being
opened by the system user) is prohibited and results in an exclusion
of liability. Incorrect usage also occurs if the components in the heating
system are modified from their intended function (e.g. if the flue gas
and ventilation air paths are sealed).
Electrical equipment in rooms containing a bathtub or a shower must
be installed in such a way that users cannot be exposed to dangerous
body currents.
The VDE 0100 specifies that cables supplying permanently installed
consumers in areas 1 and 2 should only be run vertically and routed
into the equipment from the back.
Protect the power cable with a fuse with a maximum rating of 16 A.
We recommend installing an AC/DC-sensitive RCD (RCD class B) for
DC (fault) currents that can occur with energy efficient equipment.
VITODENS