Piazzetta MP 973 - Connecting to a Conventional Chimney; Chimney Check and Pipe Insertion; Flue Connection Requirements

Union-tee
The use of this type of tting must allow for the collection of condensate mixed with soot, which builds up inside the pipe. It must also permit periodic
cleaning of the ue without the need to disassemble the pipes.
This type of tting can be bought at Piazzetta retail outlets together with the pipes.
An example is given below of a ueway connection, which allows complete cleaning without having to disassemble the pipes (Fig. 18).
If you wish to use an existing chimney it is strongly recommended that
you have it checked by a professional chimneysweep to ensure that it
is completely airtight. The reason for this is that the smoke, because it
is slightly pressurised, can inltrate any cracks in the ue and escape
into living spaces. If upon inspection you nd that the chimney is not
completely sound, it is recommended that you insert piping made of
new material. If the existing chimney is wide enough we recommend a
pipe with a maximum diameter of 150 mm. It is also recommended that
you insulate the chimney ue (Fig. 19-20).
Pipes and bends made by Gruppo Piazzetta S.p.A. are recommended
for connection to the ueway, since they are sized to t the ue outlet
of the appliance.
Other pipes may be applied after adaptation and checking of the
compatibility of the coupling, taking into account that the pipes and
bends must be made in compliance with current regulations. In this
case, however, Gruppo Piazzetta S.p.A. only guarantees trouble-free
operation for parts that it manufactures and that are used according to
specications.
• If the connector has to pass through partitions or walls of inammable
or heat-sensitive materials, or through load-bearing walls, create an
insulating barrier equal to or greater than 10cm around the connector
using mineral-based insulating material (rock wool, ceramic bre)
with a nominal density greater than 80 kg/m
3
.
• If the connector has to pass through non-ammable partitions
or walls, create an insulating barrier equal to or greater than 5 cm
around the connector using mineral-based insulating material (rock
wool, ceramic bre) with a nominal density greater than 80 kg/m
3
.
• Check that the connection to the ueway is gas/smoke-tight, since
the appliance operates in a vacuum.
• Check that the pipe does not penetrate too far into the ueway, thereby
choking the pipe for the passage of smoke and combustion gases.
a Ensure that all installation work is carried out to professional
standards.
DT2010230-03
1.11 CONNECTING TO A CONvENTIONAL ChIMNEy
CHIMNEY STACK
TEE
Ø 80 mm
INSULATING MATERIAL
Ø 150 mm MAX
PIPE INSERTION
INSPECTION
WINDOWS
WITH DAMAGED FLUE
CLOSING FLANGE
SEALING FLANGE IN
STAINLESS STEEL
OR ALUMINIUM
FRESH AIR INTAKE WITH
NON-CLOSABLE GRILLE
Fig. 19
Fig. 20
H072047UK0 / DT2001513 – 04
11
English
DT2030339-01
DT2030340-00