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INSTALLATION
With flat and smooth flooring and for small movements, the
thermal unit can be slightly lifted and moved through the
wheels (8).
Level the thermal unit by acting on the 2 feet on the front side
of the thermal unit.
2.4
Installation premises
Because this TAU Unit boiler generates over 35 kW of heat out-
put, it MUST be installed in a dedicated boiler room in compli-
ance with applicable technical standards. The boiler must also
be provided with a suitable condensate collection system and
flue gas vent system (see the relevant sections in this manual).
9
In Belgium, boilers must be installed according to standards
NBN D51.003, NBN B61.002 (heat output < 70 kW), and NBN
B61.001 (heat output >70 kW)
9
When installing the boiler, allow sufficient space around it
to access all safety and control devices and to permit easy
maintenance.
9
Check that the electric protection level of the appliance is
suitable for features of the room where it is installed.
9
Electrical parts must be placed at a height of no less than
500 mm from the ground where heating units are supplied
with fuel gas with specific weight exceeding that of air.
0
These boilers must be installed indoors. They are not de-
signed for outside use.
0
Do not obstruct or restrict the air vents in the room where
the boiler is installed. A free air supply is essential for correct
combustion.
9
Make sure that comburent air is not contaminated by sub-
stances containing chlorine or fluorine (elements found in
sprays, paints, detergents etc.).
2.4.1
Recommended minimum distances
This figure shows the minimum distances that must be respect-
ed to allow installation and maintenance of the boiler.
8
The thermal module TAU Unit can be installed in rooms that are
permanently ventilated and equipped with suitably sized ven-
tilation openings in line with Technical Standards and Regula-
tions applicable to the installation site.
2.5
Installation in older systems and systems
requiring modernisation
When installing these boilers in older systems or systems requir-
ing modernisation, always perform the following checks:
− The flue must be suitable for condensing devices, for the
temperature of the combustion products, calculated and
constructed according to current standards, and must be
as much straight as possible, sealed, isolated and with
no occlusions or chokes
− Make sure that the flue is fitted with a condensation
drainage union
− Make sure that the electrical supply system has been in-
stalled by a qualified electrician in compliance with ap-
plicable standards
− Make sure that the fuel feed line and any storage tank
are made and installed in compliance with applicable
standards
− Make sure that the flow rate, head and direction of flow
of the pumps are suitable and correct
− Make sure that expansion vessels are big enough to con-
tain the additional volume generated by thermal expan-
sion
− Make sure that the central heating circuit has been
flushed out to remove all sludge and lime scale, and that
it has been bled and seal tested
− A water treatment system must be provided (see chap-
ter "Water in central heating systems"). Refer to the
catalogue for details of specific products.
9
The manufacturer declines all responsibility for damage
caused by incorrectly constructed flue systems.
14
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