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Basic HVAC Principles

Horizontales
To circulate recovered refrigerant through filtering devices in the shop or field that remove moisture, acid, and other contaminants
The movement of heat from a warmer substance to a cooler substance
Refers to a machine that uses a mechanical refrigeration cycle to cool water for industrial processes or comfort cooling
Harmful to health; potentially poisonous or fatal
Comfort systems or water heaters that can produce heat by reversing the standard mechanical refrigeration cycle
Verticales
A flexible sealant that is painted or sprayed to seal duct joints and insulation seams
The undesirable and uncontrolled movement of air into a building through cracks and crevices
A funded guarantee that a contractor will perform as agreed
A heat exchanger that transfers heat from a refrigerant to air or water flowing over it, enabling the change of state from a vapor to a liquid
A heat exchanger that transfers heat from the air or liquid flowing over it to the cooler refrigerant flowing through it, typically causing the refrigerant to vaporize
In a refrigerant circuit, the mechanical device that converts low-pressure, low-temperature refrigerant vapor into a high-temperature, high-pressure refrigerant vapor
Describes a system that uses water as a heat transfer medium
To process a used or contaminated refrigerant until it is returned to the standards of purity required of new refrigerant
To remove refrigerant from a system and temporarily store it in containers approved for that purpose