Download VarioString - Studer Innotec

Studer Innotec SA
VarioString
2.5
WARNINGS AND GUIDELINES
The installation and commissioning of the VarioString must be entrusted to skilled and qualified
personnel perfectly aware of the safety precautions and local rules in force. All elements connected
to the VarioString must comply with the laws and regulations in force.
HIGH-VOLTAGE DC INSIDE THE CHARGE REGULATOR: DANGER OF DEATH
When the VarioString is in operation it generates voltages that can be potentially lethal (up
to 1000Vdc). Any work on or close to the installation must only be carried out by thoroughly
trained and qualified personnel. Do not try to carry out ordinary maintenance on this
product yourself.
While working on the electrical installation, it is important to make sure that the source of
DC voltage coming from the battery as well as the source of DC voltage coming from the
photovoltaic generator, have been disconnected from the electrical installation.
Even when the VarioString has been disconnected from the power sources, a potentially
dangerous voltage may remain at the terminals. To eliminate this you have to wait for at least
5 minutes in order to allow the electronics to discharge. The task can then be carried out safely.
No person is authorized to proceed with any change, modification or repair of the equipment without
prior written authorisation from Studer Innotec. Only original parts should be used in authorised
modifications or replacements.
Respect the maximum rated specifications of the equipment indicated on the type label.
The VarioString can be installed at altitudes up to 3000m. For installations at higher
altitudes, please contact Studer Innotec SA. The VarioString is in overvoltage category
II, in accordance with the norm IEC/EN 62109-1:2010 that considers all solar generators
as being in overvoltage category II.
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MOUNTING AND INSTALLATION
The wiring and connection of the installation must be carried out only by perfectly qualified
personnel. The installation material such as cables, connectors, distribution boxes, fuses,
etc., must be appropriate and comply with the laws and regulations in force for the
application in question.
3.1
STORAGE
The equipment must be stored in a dry environment at an ambient temperature between -20°C and
60°C. Place the equipment at its mounting place at least 24 hours before commissioning in order to
avoid thermal shocks and condensation problems.
3.2
UNPACKING
When unpacking, check that the VarioString has not been damaged during transportation and that
all accessories listed below are present. Any fault must be immediately reported to the product
distributor or the contact mentioned at the back of this manual.
Carefully check the packaging as well as the VarioString.
Contents in the VarioString box:
 VarioString
 Installation and operation manual
 Cable-glands for the battery cables
 Two pairs of solar cable connectors
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V 1.2.1
User manual