Direct Expansion Fan Coil Unit

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Direct Expansion Dx Type Of Central Air Conditioning Plant Or System Central Air Conditioning Air Ventilation System Central Air Conditioning System

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The carrier 40lau horizontal type direct expansion fan coil units come in 6 sizes covering air flowrate range between 1 600 to 5 000 cfm.

Direct expansion fan coil unit.

A direct expansion air conditioning unit also called a dx unit cools indoor air using a condensed refrigerant liquid. The units are pre wired pre charged with puron r 410a refrigerant and 42tpm direct expansion fan coil units are available in 7 sizes with nominal cooling capacity range from 1 5 to 5 0 tons. 40lau fan coil units produce nominal capacities ranging from 48 000 to 150 000 btu hr. Since the air is cooled directly by the refrigerant the cooling efficiency of the dx plants is higher.

In the direct expansion or dx types of air central conditioning plants the air used for cooling space is directly chilled by the refrigerant in the cooling coil of the air handling unit. Piping drain and wiring connections are readily accessible integral mounting brackets are included to save installation time. A division of mestek inc since 2000 airtherm offers a full line of fan coils as well as hydronic heating products all proudly made in the usa. The dx system works in such a way that the evaporator is located in the space to be refrigerated.

The unit cools air by passing the condensed refrigerant through a heat exchanger inside the building to be cooled. On off control of the cold liquid to each room is effected by a solenoid valve within each indoor unit controlled by a room thermostat. Direct drive fan coil units from design build to large project retrofit usa coil air has almost every type and size covered when it comes to direct drive fan coil units. However it is not always feasible to carry the refrigerant piping to the large distances hence direct expansion or the dx type of central air conditioning system is usually used for cooling the small.

With everything from belt drive to ducted units and unique stackable configurations all in multiple models and capacities airstream units offer exceptional flexibility and availability. Why airtherm all airtherm products are engineered with quality in mind. It is the type of air conditioning unit most commonly used in homes in the united states. Direct expansion dx coils are designed for use with puron r 410a refrigerant and have copper tubes mechanically bonded to aluminum sine wave fins.

Each unit is designed to occupy a minimum space. Liquid from the condenser passes directly through an expansion device and the resulting mixture of cold liquid and flash gas is distributed to each of the fan coil units on the circuit. Direct expansion coils include matched factory installed thermostatic expansion valves txvs with matching distributor nozzles. No other selection of fan coils is more complete than carrier s airstream product line.

These units have been engineered for domestic and commercial application.

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