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Aquarium Chillers
Aquarium tank chillers are needed to keep the water temperature optimal for tropical fish and reef life. An aquarium tank chiller operates at same principle as the refrigerator or air conditioner. Refrigerator gas, such as freon, is compressed, resulting in a loss of termperature. The compressed gas flows through the heat exchanger where it picks up heat from the aquarium water being pumped through the heat exchanger and carries the heat back to the compressor. On its way the warmed up gas encounters the expansion valve, which allows a sudden pressure drop. The gas gives up heat to a radiator which dissipates the heat to the surrounding air with the assistance of a fan.
Aquarium tank chillers are available in two forms: drop-in and in-line.
Drop-in aquarium chillers have cooling coils that you simply place in the sump to cool the water. No plumbing is required. In-line chillers have internal cooling coils. Water is pumped into the chiller, cooled, and then returned back to the tank or sump. The chief advantage of an in-line chiller is that it can be placed remotely from the tank (such as a basement, a different room or a garage). Temperature controllers are necessary to operate the aquarium tank chiller. A single stage controller will control just the aquarium chiller, while a dual stage controller can control both a aquarium chiller and a heater to minimize variance and eliminate conflicts.
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