DX REFRIGERANT COOLING COILS |
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General D.X. Cooling Coils are suitable for all Direct Expansion Refrigerants that are non-corrosive to copper.Cooling Coils are generally manufactured for horizontal airflow. If the coil is to be mounted in a vertical duct, or the airflow is other than horizontal, this must be specified when ordering.All Cooling Coils must be installed with the primary tubes horizontal.The connections on D.X Coils are usually on the same side but if opposite side connections are required, this must be specified in your enquiry.Cooling Coils are available in depths from one to sixteen rows with alternate rows equally staggered, to obtain maximum heat transfer. Heat Transfer Surface |
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The primary tubes are mechanically expanded into the pre-formed collars thus assuring a good metallic bond between the fins and tubes. This results in uniform heat transfer with guaranteed performance throughout the life of the coil. The tubes are brazed or silver soldered into copper return bends, terminating in liquid distributors and suction headers, each provided with plain copper connection. |
Casing The cooling surface is housed in a casing manufactured from galvanised sheet steel. Where the primary tubes pass through the casing, smooth belled holes are provided to permit freedom of movement for expansion and contraction. The casing is produced in channel and tray formation suitably stiffened to prevent distortion. The flanges formed by the casing sections can be drilled for attachment to adjacent components on request. The bottom panel of the casing is formed into a drip tray with a B.S.P. socket drain connection. |
Testing All DX Cooling Coils are subject to an air under water test of 2000 kPa. Where higher working pressures are involved coils can be tested up to 3500 kPa or twice their working pressure. Finish Coils with a galvanised steel casing are generally supplied unpainted but special finishes are available on request. |
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