How To Add Extensions - Vaillant ecoMAX 613/2 E Installation Instructions Manual

FITTING AIR/FLUE DUCT EXTENSIONS

How to add extensions

Use a saw, tin-snips, etc. to cut tubes
to size.
No tools are required when
separating extensions for cutting to
size air and flue tubes separately.
When doing so, the flue conduit
should be twisted into a position
where the shoulders on the plastic
tube can be pushed through the
spacer-piece. After cutting to size,
refit the flue conduit and secure it
to the air conduit.
Tip:
Start by measuring the required
length of air conduit* (L air ), and then
calculate the corresponding length of
flue conduit (L exhaust ) as follows:
L exhaust = L air + 40 mm
L exhaust = length of flue conduit
L air = length of air conduit
* Minimum length of air-conduit
extension: 80 mm.
18
2
1
+ 40 mm
Fig. 9.1: Cutting tubes to size
Fig. 9.2: Loosening the flue conduit
1.
1 2
2.
The seals are sensitive to mineral
oil-based grease products. For this
reason, the seals must not be
greased. If the seals need wetting
to aid in installation, use water
only.
De-burr and file down any rough
edges on the tubes before fitting in
order to prevent damage to the
seals. Remove all metal filings and
other debris.
Do not use damaged or dented
tubes, as they will not form an
adequate seal.
Ensure that the seals remain
correctly aligned when installing
the tubes. Do not fit damaged
seals.
Secure the exhaust conduit with
the fixing device in order to ensure
that it is correctly centred relative
to the air conduit.