NORDAC FLEX (SK 200E ... SK 235E) – Users Manual for Frequency Inverters
84 BU 0200 en-3118
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2.7 Outdoor installation
The device and the technology units (SK TU-...) can be installed outdoors under the following
conditions:
• IP66 version (incl. UV-resistant blank screw caps, see special measures, section 1.10 "Version in
protection class IP55, IP66"),
• UV-resistant inspection windows (Part Number: 200852000 ( TI 200852000
)), number of
pieces: 3,
• Cover the device to ensure that it is protected from the direct influence of the weather (rain/sun),
• Used accessories (e.g. connectors), also at least IP66.
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Information
Diaphragm valve
The membrane valve (bag enclosed with the IP66 version of the frequency inverter connection unit) enables the
compensation of pressure differences between the inside of the frequency inverter and its environment and also
prevents the entry of moisture. If it is fitted in an M12 screw gland of the inverter connecting unit, care must be
taken that the diaphragm valve does not come into contact with standing water.
Information
Older devices
If older device models (year of manufacture 2010 or later) are going to be retrofitted outdoors, it may be
necessary to also replace the housing cover with a UV resistant version.
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