Hailea Hs- 28a Manual =link= Here

The is a compact chiller for aquariums or small hydroponic systems (cooling capacity ~1/10 HP, suitable for 50–200L tanks depending on ambient temp).

The manual defaults to a 2°C differential. This means: hailea hs- 28a manual

When you first open your Hailea HS-28A, the manual indicates you should find: The is a compact chiller for aquariums or

250–1200 L/H (must be maintained for efficient cooling). Refrigerant: R134a. Weight: Approximately 15kg. Critical Installation Steps Refrigerant: R134a

She never found the manual. But she learned the most important rule of the HS-28A: when it breaks, don’t fix it. Run.

Never place the pump directly underneath the water level of your tank or reservoir. While the unit is sturdy, it is not submersible. If a leak occurs or a siphon forms through the airline tubing, water can back-siphon into the pump, destroying the electromagnet and creating an electrical hazard.