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very cold coil the air temp. goes to16c then a heater to get the temp. up back to22c (human comfort)
Air dehumidification can be achieved by two methods:
1-cooling the air below its dew point and removing moisture by condensation
2- sorption by a desiccant material. Desiccants have a natural affinity for removing moisture. As the desiccant removes the moisture from the air, it releases heat and warms the air, i.e., latent heat becomes sensible heat.