Safety; Intended Use; General Safety Information - Vaillant uniTOWER plus Operating Instructions Manual

1

Safety

1.1

Intended use

There is a risk of injury or death to the user or
others, or of damage to the product and other
property in the event of improper use or use
for which it is not intended.
This product is a system component for con-
trolling the heating circuits and domestic hot
water generation in conjunction with a heat
pump using a system control.
The product is intended exclusively for do-
mestic use.
The intended use only allows for these
product combinations:
Outdoor unit
VWL ..5/6 A ..
– observance of accompanying operating,
installation and maintenance instructions
for the product and any other system com-
ponents
– installing and setting up the product in ac-
cordance with the product and system ap-
proval
– compliance with all inspection and main-
tenance conditions listed in the instruc-
tions.
Intended use also covers installation in ac-
cordance with the IP code.
Any other use that is not specified in these
instructions, or use beyond that specified in
this document, shall be considered improper
use. Any direct commercial or industrial use
is also deemed to be improper.
Caution.
Improper use of any kind is prohibited.
1.2

General safety information

1.2.1 Risk caused by inadequate
qualifications
The following work must only be carried out
by competent persons who are sufficiently
qualified to do so:
– Set-up
– Dismantling
– Installation
– Start-up
0020291525_04 Installation and maintenance instructions
Indoor unit
VIH QW 190/6...
VWZ MEH 97/6
– Inspection and maintenance
– Repair
– Decommissioning
▶ Proceed in accordance with current tech-
nology.
1.2.2 Risk of death from electric shock
There is a risk of death from electric shock if
you touch live components.
Before commencing work on the product:
▶ Disconnect the product from the power
supply by switching off all power supplies
at all poles (electrical partition in over-
voltage category III for full partition, e.g.
fuse or circuit breaker).
▶ Secure against being switched back on
again.
▶ Wait for at least 3 minutes until the capa-
citors have discharged.
▶ Check that there is no voltage.
1.2.3 Risk of death due to lack of safety
devices
The basic diagrams included in this docu-
ment do not show all safety devices required
for correct installation.
▶ Install the necessary safety devices in the
installation.
▶ Observe the applicable national and inter-
national laws, standards and directives.
1.2.4 Risk of burns or scalding caused by
hot components
▶ Only carry out work on these components
once they have cooled down.
1.2.5 Risk of scalding from hot water
There is a risk of scalding at the hot water
draw-off points if the hot water temperatures
are greater than 60 °C. Young children and
elderly persons are particularly at risk, even
at lower temperatures.
▶ Select a moderate set target temperature.
▶ Inform the operator about the risk of scald-
ing when the Anti-legionella function is
switched on.
1.2.6 Risk of injury due to the heavy weight
of the product
The product weighs over 50 kg.
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