Toshiba TOSVERT VF-S11 Instruction Manual page 32

Install the inverter in a well-ventilated indoor place and mount it on a flat metal plate in portrait orientation.
If you are installing more than one inverter, the separation between inverters should be at least 5 centimeters,
and they should be arranged in horizontal rows. If the inverters are horizontally arranged with no space
between them (side-by-side installation), peel off the ventilation seals on top of the inverter. It is necessary to
decrease the current if the inverter is operated at over 50°C.
• • • • Standard installation
10 cm or more
VFS11
5 cm or more
5 cm or more
10 cm or more
The space shown in the diagram is the minimum allowable space. Because air cooled equipment has cooling
fans built in on the top or bottom surfaces, make the space on top and bottom as large as possible to allow
for air passage.
Note: Do not install in any location where there is high humidity or high temperatures and where there are
large amounts of dust, metallic fragments and oil mist.
Calorific values of the inverter and the required ventilation
About 5% of the rated power of the inverter will be lost as a result of conversion from AC to DC or from DC to
AC. In order to suppress the rise in temperature inside the cabinet when this loss becomes heat loss, the
interior of the cabinet must be ventilated and cooled.
The amount of forcible air-cooling ventilation required and the necessary heat discharge surface quantity
when operating in a sealed cabinet according to motor capacity are as follows.
Notes
1) The heat loss for the optional external devices (input reactor, DC reactor, radio noise reduction filters,
etc.) is not included in the calorific values in the table
2) Case of 100% Load Continuation operation.
• • • • Side-by-side installation
10 cm or more
VFS11 VFS11 VFS11
10 cm or more
A-21
Remove seals on top
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