Charles Austen HS Chiller Series – HS100A

Charles Austen HS Chiller Series – HS100A

HS Series water chiller for stable aquatic and process temperature control

The Charles Austen HS Chiller Series – HS100A is a Charles Austen HS Series water chiller designed to maintain stable water temperatures in laboratory, medical, laser and industrial cooling systems. It is suited to systems up to around 100 litres, with a recommended flow range of approximately 200 to 1200 litres per hour.

Stable water temperature is often overlooked, but it can be critical in specialist aquatic systems. Fish, filtration bacteria, hydroponic crops, coral, laboratory equipment and temperature sensitive processes can all suffer when water becomes too warm or fluctuates heavily. A properly sized chiller helps remove excess heat and maintain a controlled environment.

The HS Series is built for dependable temperature regulation. It uses digital temperature control for straightforward adjustment and monitoring, with corrosion resistant construction. This makes it suitable for demanding installations where long term reliability is more important than simply choosing the cheapest cooling option.

When to use a water chiller

A chiller is useful where ambient room temperature, lighting, pumps, filtration equipment or surrounding weather cause the water to rise above the preferred range. In aquariums and holding systems, excess heat can reduce dissolved oxygen and stress fish. In hydroponics, warm nutrient solution can affect oxygen availability and root health. In laboratory and industrial setups, temperature instability can reduce repeatability and reliability.

The right chiller should be chosen by water volume, heat load, desired temperature reduction, room temperature, flow rate and installation layout. The system volume shown on a product information is a useful guide, but actual performance depends on real conditions. A system exposed to strong sunlight, warm air or high heat input may need a larger chiller than the nominal volume suggests.

Installation and flow guidance

This model should be installed with a pump capable of providing the recommended flow range of 200 to 1200 litres per hour. Too little flow can reduce efficiency and trigger temperature instability, while too much flow may not allow the unit to exchange heat effectively. Use suitable hose or pipework, avoid unnecessary restrictions and make sure the chiller can be accessed for cleaning and maintenance.

Good ventilation is important. A chiller removes heat from the water and releases it into the surrounding air, so it should not be boxed into a sealed cupboard or placed where warm exhaust air is immediately drawn back into the unit. Allow space around the unit and keep intake and outlet areas clear.

Technical information

• Type: HS Series water chiller / temperature controller
• Model: HS100A
• Water volume guidance: Up to around 100 litres
• Flow range: 200 to 1200 litres per hour
• Connector: 13mm
• Dimensions: 338mm x 218mm x 325mm
• Temperature control: Digital display / electronic control
• Electrical input: Electrical input not published in the available Charles Austen summary; check the rating plate before specifying electrical load

Key benefits

✔ Precision Cooling – Accurate digital temperature control for small-scale setups
✔ Digital Display – Easy-to-use interface for monitoring and adjustments
✔ Quiet Operation – Low noise and vibration-free design, ideal for labs and clinics
✔ Corrosion-Resistant Build – Long-lasting durability for continuous use
✔ Safety Features – Overheat protection and system diagnostics built in
✔ Compact Size – Space-saving chiller designed for smaller systems

Installation and temperature control advice

A water chiller must be sized around the water volume, heat load, required temperature and the environment it is installed in. Flow rate is important, but so is ventilation. A chiller that cannot reject heat properly will struggle, even if the water flow through the unit looks correct.

Install the unit where it can breathe, where filters can be cleaned and where the display and pipe connections remain accessible. Keep pipework tidy, avoid unnecessary restriction and check the system regularly during warm weather. Stable temperature control depends on the full installation, not just the chiller model.

Related temperature control and pond equipment

Water temperature control should be planned alongside oxygenation, filtration and circulation. Cooler water can hold more dissolved oxygen, but fish, bacteria, plants and specialist aquatic systems still need stable circulation and good water movement to remain healthy.

• Browse pond heating and chillers
• Browse the full Charles Austen range
• Pond air pumps
• Pond and lake aeration equipment
• pond heating guide

If you are considering a chiller for a pond, aquarium, holding vat or hydroponic system, it is worth checking the actual heat load before ordering. Water volume is only one factor. Pump heat, sunlight, ambient air temperature and target temperature all affect the size of chiller required.

Professional setup advice

For best results, do not choose aeration, circulation or temperature equipment by model number alone. Consider the water volume, depth, fish load, filter type, pipe or airline run, and how easy the equipment will be to access for routine servicing. A correctly matched system will usually perform better, run more quietly and last longer than an oversized product connected to restrictive pipework or undersized accessories.

On larger ponds and lakes, it is often better to spread performance across the system rather than concentrating everything in one place. Air pumps can be paired with multiple diffuser stations, wave makers can be used to improve circulation in dead spots, and chillers should be installed with enough flow and ventilation to work efficiently. This approach gives a more stable pond environment and makes future maintenance much easier.

Useful installation links

• Browse the full Charles Austen range
• Browse pond air pumps
• Standard sinking airline
• Heavy duty sinking airline
• Air manifolds and accessories