Vaillant ECOTEC PLUS VU 80, Installation And Maintenance Instructions Manual

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ecoTEC plus installation and maintenance instructions 0020134823_01
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Safety
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2.4.2 Installation site
The installation site of the boiler should allow proper con-
nection of the flue pipe to the boiler. In addition, there
should be adequate room for maintenance work and air cir-
culation around the boiler.
The boiler must be set up in a separate installation room.
In case of installation of the boiler in an unusual location,
special procedures may be necessary and BS 5546 and
BS 6798 give detailed instructions on this aspect. The boiler
must be installed on a flat, vertical wall, which must be suf-
ficiently robust to take the weight of the boiler. The boiler
may be installed on a combustible wall, subject to the
requirements of the Local Authorities and Building Regula-
tions.
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If the boiler is to be installed in a timber frame
house, the installation must be performed in
accordance with the Institute of Gas Engineers
Publication IG/UP/7 edition 2 "Guideline for gas
installations in wooden and light metal-clad resi-
dences".
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Caution.
Risk of damage caused by aggressive
vapours and dust.
Aggressive vapours and dust in the installa-
tion room may cause corrosion damage to
the boiler and to the flue gas installation.
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Ensure that the boiler is room-sealed if
the air in the installation room contains
aggressive vapours or dust.
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Observe the following when choosing the installation site
and operating the boiler:
– Do not install the boiler in rooms prone to frost.
– Do not install the boiler in rooms in which the com-
bustion air contains chemical substances, e.g. fluoride,
chlorine, sulphur, dust, etc. (e.g. sprays, solvents,
cleaning agents, paint, adhesives).
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Operate the boiler independently of room air or in a sep-
arate installation room, otherwise this may cause corro-
sion in the boiler and in the flue gas installation, if
– the combustion air supply contains the aforemen-
tioned substances,
– you install the boiler in hairdresser salons, painter's or
joiner's workshops, cleaning businesses or similar.
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Do not route the combustion air through an old oil fur-
nace hearth, as this can also cause corrosion.
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When installing the unit, please observe the local con-
densate regulations,
– avoid horizontal sections in the condensate and flue
gas route.
The condensate connection must not be modified or
blocked.
2.4.3 Gas supply
An existing gas meter should be checked to ensure that it is
capable of passing the rate of gas supply required.
The lines must be fitted in accordance with BS 6891. In IE in
accordance with the current issue of IS 813. The lines
between the gas meter and boiler must be of an appropri-
ate size.
Do not use any lines that are smaller than the connection
to the boiler (25 mm). The complete system must be tested
for leaks and purged as described in BS 6891.
2.4.4 Electrical connection
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Danger!
Risk of death from electric shock!
If the boiler is not earthed, it may be elec-
trically live if a defect occurs.
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Earth the boiler and the metal pipes that
are connected to the boiler.
A common, single-phase 230 V-, ~ 50 Hz electricity supply
fused to a max. 3 A must be provided for the boiler and its
additional controllers in accordance with the latest edition
of the directive BS7671 (IEE Wiring Regulations) and any
other local regulations that may apply. In IE reference
should be made to the current edition of the ETCI rules. The
method of connection to the power mains must provide a
means of completely isolating the boiler and its ancillary
controllers from the power mains. It is preferable to isolate
the boiler using a two-pin switch with a 3-mm contact open-
ing on both pins. The isolator should be attached and
marked accordingly so that it is easily accessible and adja-
cent to the boiler.
2.4.5 System of parts through which water flows
Lines which do not form part of the usable heating surface
should be insulated to prevent heat losses and possible
freezing up, especially where the lines run under roofs and
ventilated cellar spaces. The drain connections must be eas-
ily accessible, so that the entire system including the boiler
and hot water system can be drained. The drain connec-
tions should be at least 1/2" (BSP nominal size) and must be
in accordance with BS 2879.
The water pipes must be thoroughly cleaned, especially
when connecting a new boiler to an existing system.