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  Related Terms
• Accumulator-Dryer
• Air conditioning
• Condensor
• Dichlorodifluoromethane
• Freon
• Tetrafluoroethane

Definition: A drying agent used in the refrigeration system to remove moisture. The moisture-absorbing zeolyte crystals are located in the accumulator-dryer or receiver-dryer depending on the type of system. R-134a systems generally require XH-7 or XH-9 desiccant.

Related Resources:

Automotive Air Conditioners
Get a basic understanding of how the air conditioner in your car works and some of the implications of R-12 systems.

What's That Smell??
Does your air conditioner smell like a pile of old socks? Do you look under the seats for dead animals? Here is why you are getting that smell and what you can do about it.

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