Instruction manual

K1, K3 series chillers – Installation and Operation manual
Issue 7.0 Page 7
· Clean. If your installation is to existing pipe work, it is good practice to flush the
system with either a commercially available central heating cleaner or 5% acetic
acid solution. The system should be flushed clean with tap water to remove all
traces of cleaner prior to filling the system.
All connections should be made using either the ATC ‘easy clamp’ or a jubilee type clip.
Where threaded or compression type fluid joints are to be made, always use a suitable
jointing compound such as PTFE tape.
Voltage selection
Caution: If your K1 or K3 series chiller is rated for multi voltage and dual frequency
operation, it is essential that the voltage selector switch on the chiller is set to match the
voltage and frequency available at your site.
The voltage selector switch cover plate can be found on the left side of the chiller when
viewed from the front, mounted on the vertical support plate located behind the removable
top cover. Access is gained by removing the top cover completely to expose the selector
switch. Always replace the cover for normal operation.
Having ensured that the system is correctly connected, with the inlets and outlets having
the correct orientation relative to your application, all joints tight and leak free, and with
the unit isolated from the electrical supply, prepare to fill the unit with Hexid fluid.
Hexid fluids are the preferred coolant choice as they provide excellent corrosion
protection, freeze protection, algae inhibition and good heat transfer properties.
Caution: Always use ATC recommended fluids in your K series chiller. Never use other
anti-freeze mixtures, as they may corrode your application and will damage the K series
pump seals.
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