Plastic (Pps) Balanced Flue System For Routing Over External Walls - Viessmann VITODENS Technical Manual

Design and sizing information for connection on the flue gas side
Vitodens 200-W, from 45 kW
Rated heating output range
a Max. length - system size 80
a Max. length - system size 100
Vitodens 300-W, 333-F and 343-F
Rated heating output range
a Max. length - system size 60
a Max. length - system size 80
The following components are taken into consideration for the maxi-
mum flue lengths:
2
■ Connection pipe D 0.5 m long.
■ 1 bend 87° and 1 support bend 87°
or
■ 2 bends 45° and 1 support bend 87°
Subtract additional bends, tees and straight lengths from the maximum
length using the following values:
■ Connection pipe 0.5 m long: 0.5 m
■ Connection pipe 1 m long: 1 m
2.6 Plastic (PPs) balanced flue system for routing over external walls (type C
2008)
The Vitodens may also be connected to a flue that is routed over an
external wall without a shaft.
The combustion air is drawn in via the air inlet piece. The vertical
external pipe provides protection, and due to the static air gap inside
also acts as thermal insulation. Safeguard the draining of the conden-
sate from the flue into the boiler by maintaining an appropriate fall of
at least 3°.
The external wall flue has been tested and CE-designated as a con-
centric balanced flue system as a single structural unit with the
Vitodens condensing boiler. A performance verification according to
EN 13384 is not required.
Alternative system size. Balanced flue adaptor must be ordered separately.
*1
VIESMANN
22
kW 17–45 17–60
m 20
m *1
25
kW
m
m
■ Bend 45º: 0.3 m
■ Bend 87º: 0.5 m
■ Inspection tee: 0.3 m
(cont.)
30–80 30–100
15 — —
*1 20 20
20
1.9–11 1.9–19
15 15
*1 *1
17 17
VITODENS AND VITOSOLAR
30–125 30–150
— —
8 5
4.0–26 4.0–35
15 8
*1 *1
20 15
, to TRGI
53x