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Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
+44 (0) 1530 839 998
Service@thermalexchange.co.uk
Support@app-therm.com
4.0 INSTALLATION
4.1
HOSE RECOMMENDATIONS
Having ensured that your installation meets all site requirements, it is best practice that the fluid
lines between your application and the chiller have the following characteristics.
1
Short in length – this reduces friction-based pressure drop and addition ambient heat load.
2
Large diameter bore – at least 12mm (1/2").
3
Free from 90° bends – to limit the effects of water hammer. If this cannot be avoided, sharp
changes of direction should be minimized so far as possible. Doing this correctly can yield higher
pump performance and extend time between maintenance intervals. It will also reduce electrical
energy consumption.
4
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.
Failing this, it is recommended to use a domestic bleach in solution with tap water, diluted to
the point where the bleach can longer be smelled by human nose.
5
Opaque, ideally black – to inhibit light passing through the tube and algae building up.
Alternatively, solid ABS or copper pipe can be used where application chemistry allows.
6
Insulation, where low temperature process is planned – the process line from chiller to
application contains the feed of low temperature fluid. Insulation prevents heat from entering
this line and can promote better stability. Uninsulated return lines are helpful where free cooling
can be obtained by allowing heat to transfer to air – likewise, insulating the return line is helpful
if the fluid temperature is below ambient.
Caution; Never use transparent tubing. UV light will pass through, prompting growth of
organic contamination.
4.2
CONNECTING ADAPTERS TO PRODUCT BULKHEAD FITTINGS
1
Standard units are supplied with 1/2" British Standard Pipe Parallel Female (BSPPF) threads (also
known as G threads (ISO228)) by default. These fittings are not valved and will 'drop' the volume
of the system if left open to atmosphere.
2
Ensure the appropriate thread sealants are used in the fitting of adapters to hose. For metallic
mating parts, we recommend Loctite 577. For plastic adaptors such as those supplied with the
product, we recommend using ~8-12mm wide PTFE tape, wrapped around the male thread
before tightening.
3
Ensure that the system is correctly connected. The 'donut' labels around the ports are clearly
marked with inlet and outlet symbols and function in both English and French language. Ports
marked as outlet means fluid leaves the product and must be connected to the process inlet.
4
Check all joints are tight and leak free.
5
Where this product is incorporated into other equipment, it is the responsibility of the
assembler to ensure safety
Installation, Operation & Service Manual
G04/K04
Rev 1 – 05/04/23
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