That time period of a refrigeration cycle when the system is not operating.

A device constructed to hold compound and high pressure gauges containing hand valves to control flow.

Condition in which refrigerant and/or refrigeration oil have become contaminated by the formation of acids. Typically caused by moisture introduced into system due to improper evacuation/dehydration o [..]

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Amount of moisture in the air, indicated in grains per cubic foot.

Gauge pressure plus atmospheric pressure (14.7 lbs. per sq. in.).

Temperature measured from absolute zero.

Temperature at which molecular motion ceases.

Substance with ability to take-up, or absorb another substance.

A solution or surface that is capable of soaking up (taking in) another substance or energy form.