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Katherm QK nano –
Ultra-small trench heater with EC tangential fan
Ready-to-install convector-based floor trenches
Assembly and installation instructions
2. Safety Information
Only allow a qualified electrician to perform installation, assembly and
maintenance work on electrical units in compliance with VDE guidelines.
Wiring should comply with the applicable VDE regulations and provisions
laid down by the regional electricity providers. Non-compliance with the
regulations and operating instructions can result in the units malfunctioning
with consequential damage and danger to people. There is a danger of fatal
injury caused by wires being swapped due to incorrect wiring! Disconnect
all parts of the system from the mains power supply and prevent them from
being reconnected before starting any connection and maintenance work!
The unit should only be connected to fixed cabling.
Please read this manual in full to ensure correct and proper installation.
Please note the following safety-relevant information:
• Disconnect all parts of the system that are being worked on.
• Ensure that the system cannot be accidentally re-connected!
• Before commencing installation/maintenance work, wait until the fan has
come to a standstill after the unit has been switched off.
• Caution! Pipes, casings and fittings can become very hot depending on
the operating mode!
• Qualified personnel must have undergone training to provide them with
adequate knowledge of the following:
• Safety and accident prevention regulations
• Guidelines and recognised technical regulations, i.e. Association of
German Electricians (VDE)
• DIN and EN standards
• Accident prevention regulations VBG, VBG4, VBG9a
• DIN VDE 0100, DIN VDE 0105
• EN 60730 (Part 1)
• Technical wiring regulations (TABs) issued by the regional electricity
providers
Modifications to the unit
Do not undertake any modifications or upgrades on Katherm QK nano
without discussing them with the manufacturer as they can impair the
safety and operation of the unit. Do not carry out any measures on the unit
not described in this manual. Make sure that on-site systems and cabling are
suitable for connection to the intended system!
The floor duct has openings provided for the installation of a
potential compensation line.
