Heating and Cooling Coil for AHU

Views: 5 Author: Site Editor Publish Time: 2021-08-09 Origin: Site

Cooling coil and heating coil for AHU Air Handling Unit (Air Handler)

Cooling coil is the main part for cooling of air or water. It cools the air or water whatever comes in contact. Normally air comes in contact with cooling coil but for a bigger system like chilled water system, cooling coil cools water circuits.
Cooling coil can be classified into two types,
* DX cooling coil which cools air directly.
* Chilled water coil which cools water and the water circuits cools air.

Cooling coil can be classified into two types,
* DX cooling coil which cools air directly.
* Chilled water coil which cools water and the water circuits cools air.

It is basically acts as a heat exchanger. Copper is used for the material of cooling coil and it is properly insulated to restrict
heat loss.
* Cooling coil is normally made of coper.
* It has fins to increase the surface area or heat transfer rate.
* Fins can be copper or aluminium. If dissimilar material is used, then coating shall be applied.

In case of high humid area, moisture content is becoming more and the same needs to be removed to make it comfortable or acceptable.

Heating coil is used for this purpose. In many places, if humidity is too high, duct heaters shall be provided in the individual rooms instead of a common heating coils in air handling unit.