Keep aquarium water and hydroponic nutrient solutions at a controlled temperature with the Hailea HC-300A Water Chiller. Designed for circulating water systems with a recommended capacity of approximately 300 litres, this refrigeration unit provides effective cooling for larger aquariums, hydroponic reservoirs and other compatible water systems.

The HC-300A features a robust metal housing, digital temperature control and a corrosion-resistant titanium heat exchanger. Using R134a refrigerant, it is suitable for freshwater and saltwater applications, making it a versatile cooling solution for aquarium and hydroponic installations.

Digital temperature control

The Hailea HC-300A features an electronic temperature controller and digital display, allowing you to monitor and adjust your system's water temperature. The display provides readings in 0.1°C increments.

The unit can operate at temperatures as low as approximately 4°C, depending on operating conditions and the cooling requirements of the installation.

Titanium heat exchanger for freshwater and saltwater

The HC-300A incorporates a titanium heat exchanger designed to resist corrosion in freshwater and saltwater applications. This makes it suitable for marine and freshwater aquariums, as well as hydroponic nutrient reservoirs.

Designed for water systems up to approximately 300 litres

The HC-300A is recommended for systems with a water capacity of around 300 litres. Its cooling performance depends on factors including ambient temperature, starting water temperature, circulation rate, lighting, pumps and other sources of heat.

Manufacturer performance testing uses an ambient temperature of 30°C, an initial water temperature of 28°C and a target temperature of 16°C. The stated test volume for the HC-300A is 300 litres, with a cooling period of 20 hours. Actual results will vary with installation conditions and heat load.

Key features

• Suitable for aquariums and hydroponic systems

• Recommended system capacity: approximately 300 litres

• Digital temperature display

• Display precision: 0.1°C increments

• Titanium heat exchanger for freshwater and saltwater use

• R134a refrigerant

• Compressor rating: 1/4 HP

• Recommended water flow: 1,000–2,500 litres per hour

• Robust metal construction

• Designed for continuous operation

• Automatic restart after a power interruption

• Connection fittings included

Technical specifications

Specification	Details
Brand	Hailea
Model	HC-300A
Recommended system capacity	Approximately 300 litres
Compressor rating	1/4 HP
Recommended water flow rate	1,000–2,500 litres per hour
Power supply	220–240V
Frequency	50Hz
Working current	1.8A
Refrigerant	R134a
Refrigerant charge	220g
Heat exchanger	Titanium
Temperature display	Digital, 0.1°C increments
Dimensions	448 × 330 × 440mm
Weight	Approximately 18.6kg
Water connections	Check supplied fittings; commonly listed for 19mm and 25mm hose sizes

Installation and operation

The Hailea HC-300A requires an external water pump to circulate water through the cooling unit. Select a suitable pump capable of providing a flow rate within the recommended 1,000–2,500 litres per hour range.

Install the chiller in a well-ventilated location, leaving sufficient space around the unit for heat dissipation. Avoid enclosing the chiller in a cabinet or placing it somewhere warm air cannot escape, as this can reduce cooling efficiency.

For best results, consider the total water volume, ambient temperature, lighting, pump heat and other equipment that may increase the temperature of your system.

Please note: The 300-litre capacity is a recommended system size based on specified test conditions, not a guarantee of identical cooling performance in every environment. For larger systems or higher heat loads, consider a higher-capacity model from the Hailea HC range.