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A variety of Danfoss capacity controllers match compressor capacity to actual evaporator load in applications operating at around 0 °C evaporating temperature. Valves are usually used in air dryers and water chillers. Equipped with a bypass between high and low pressure in the dehumidification system, the TUH controller maintains a constant compressor suction pressure by injecting hot/cold gas from the discharge side.

Danfoss TUH hot gas bypass regulators suitable for use with refrigerants: R410A, R134a, R404A/R507, R407C, R22, have internal pressure equalization and open when the pressure drops downstream. Equipped with a sensor that serves only as a filling reservoir. However, it is recommended to place it where temperature fluctuations are limited.

Regulators equipped with high-strength, vibration-resistant capillary tubes and a laser-welded stainless steel diaphragm. Compact, hermetic construction ensures tightness.

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