CARRIER COOLING COILS,HVAC COOLING COILS

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Cooling coils come in a variety of shapes and sizes, depending on the type of installation, the amount of cooling capacity needed, and the manufacturer. The coil is the source of cooling as air passes through the furnace or air handler. They are constructed of aluminum finned copper tubing. The copper tubing runs perpendicular to the aluminum fins, making U-turns back and forth until the desired coil size is achieved. Added cooling capacity without an increase in length and width is accomplished by adding more rows of copper tubing.

Slant coils and horizontal coils have a slab appearance, similar to the radiator in an automobile. They can be installed in ductwork running horizontally or in an air handler. An A-coil is shaped like a capital A without the crossbar. It can be installed on top of a fuel burning furnace heat exchanger or in an air handler. The newest design is the multi-flex coil which is a series of A-coils linked together at the base. The multi-flex coil can be installed in any position when encased in a special cabinet. All cooling coils must have a drain pan to collect the water that condenses as the air flowing across the coil cools. The water can drain away by gravity or be pumped away.

The cooling effect that takes place inside the coil requires a pressure drop in the refrigerant. This drop can be accomplished in a number of ways: capillary tube, piston or orifice, or thermostatic expansion valve.

A capillary tube is a thin copper tube of predetermined length into which the compressed liquid refrigerant is pumped. The length of the tubing causes the pressure drop and subsequent cooling effect of the refrigerant.

A piston or orifice blocks the flow of refrigerant and forces it through a tiny hole, creating the needed pressure drop.

A thermostatic expansion valve meters the flow of refrigerant to meet the cooling demand of the cooling coil. It determines this demand by way of a sensing bulb attached to the outlet tube on the coil. Because it can meter the flow to meet demand, the expansion valve can keep the coil at optimum cooling potential.

One of the widest uses of heat exchangers is for air conditioning of buildings and vehicles. This class of heat exchangers is commonly called air coils, or just coils due to their often-serpentine internal tubing. Liquid-to-air, or air-to-liquid HVAC coils are typically of modified crossflow arrangement.

On the liquid side of these heat exchangers, the common fluids are water, a water-glycol solution, steam, or a refrigerant. For heating coils, hot water and steam are the most common, and this heated fluid is supplied by boilers, for example. For cooling coils, chilled water and refrigerant are most common. Chilled water is supplied from a chiller that is potentially located very far away, but refrigerant must come from a nearby condensing unit. When a refrigerant is used, the cooling coil is the evaporator in the vapor-compression refrigeration cycle.

On the air side of HVAC coils a significant difference exists between those used for heating, and those for cooling. Due to psychrometrics, air that is cooled often has moisture condensing out of it, except with extremely dry air flows. Heating some air increases that airflow's capacity to hold water. So heating coils need not consider moisture condensation on their air-side, but cooling coils must be adequately designed and selected to handle their particular latent (moisture) as well as the sensible (cooling) loads. The water that is removed is called condensate.

For all your cooling coil or other Carrier product needs, browse our site, HVACPLUS, your one stop online parts supply store. We offer over 500,000 parts for you to select from, from a vast array of reputable manufacturers.

 

Cooling coils are available in a wide range of different sizes. Depending on various factors like the manufacturer, required cooling capacity and installation type, cooling coils will vary greatly in size and shape. The purpose of a cooling coil is to cool air as it passes through an air handler or furnace. In most cases, a cooling coil is created with finned copper and aluminum tubing.

Normally, the copper that is used will run perpendicular to any aluminum fins that are in place. The tubing will usually make several U-turns, and it will do this until the right coil size has been achieved. By adding two extra rows made from copper tubing, the coil's cooling capacity is further increased. Another type of coil is the slant coil.

Slant coils are known to be horizontal coils, and they have a slab appearance. These coils are much like the radiator that would be found inside of an automobile. Slant coils can be installed inside of ductwork, and they can also be installed inside of an air handler. Capillary tubes, orifices and pistons are commonly used in conjunction with cooling coils.

The A-coil is also a popular type of cooling coil, and it's shaped like a capital letter A, but it doesn't have the crossbar that you would find on the capital letter A. Multi-flex coils are also very popular, and they can be linked together. Once incased inside of a special cabinet, a multi-flex coil can be installed in virtually any position. However, all cooling coils are required to have a drain pan, and this pain is needed to collect water that condenses.

When air flows across any type of cooling coil, it produces water. In some cases, this water is drained away by gravity, and in other situations, the water is pumped out. Since cooling coils need a pressure drop in refrigerant to work, they require a thermostatic expansion valve. The valve measures refrigerant flow and meets the cooling demands of the coils that are in use.

The thermostatic expansion valve determines the exact cooling demand of the coils, and it does this with a sensing bulb. The expansion valve will keep the cooling efficiency of cooling coils as high as possible. If you need to buy Carrier cooling coils or HVAC cooling coils, you need to shop with HVAC PLUS.

We can meet all of your product needs, and if you browse our site, you will be able to choose from over 500,000 parts. We sell parts from all of the major HVAC manufacturers like Trane, Copeland, Emerson, Barber Colman, ASCO and many others.