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Across 1. any temperature above saturation 4. a storage tank located in the suction line that allows small amounts of refrigerant to boil off before entering the compressor 7. amount of current flow in an electrical circuit 13. term used to describe the condition when liquid refrigerant enters a pumping compressor 15. any temperature below saturation 18. pounds per square absolute 19. used to step down voltage in an conditioning control circuit 20. a small electromagnetic switching device to control HVAC/R systems 21. the vapor state of matter 22. the amount of heat required to raise the temperature of one pound of water one degree 24. term used to describe a vapor when pressure is applied and the molecules are compacted closer together 27. a device that produces electricity from the interaction of metals and acids 30. the rotating part of a motor 32. unit of measurement for resistance in an electrical circuit 34. temperature scale where absolute 0 reads 0 degrees 36. the stationary component of a motor that contains the motor windings 37. gas used for brazing 38. a storage tank that is located in the liquid line 40. cycles per second of an electrical supply

Down 2. environmental protection agency 3. a device that senses temperature change and controls heating & cooling systems 5. metering device that maintains superheat 6. the process of removing heat from a place where it is not wanted and transferring that heat to a place where it makes little or no difference 8. pounds per square inch 9. a device that produces a pressure difference in the air to move it 10. the part of a thermostat that is mounted on the wall and to which the thermostat wire is connected to 11. when a substance changes from a solid to a vapor without changing to a liquid 12. abbreviation of mercury 14. sensible heat plus latent heat {total heat} 16. a form of oxygen that protects the earth from the sun's UV rays 17. a path for electrons to flow in a complete path 20. the opposition to electrical flow 23. electrical power {P= I x E} 25. pounds per square inch gauge 26. the component in a refrigeration system that absorbs heat into the system evaporates the refrigerant 27. a heat activated electrical device used to open an electrical circuit 28. unit of measurement for current flow 29. a component in a refrigeration system that transfers heat from a system by condensing the refrigerant 31. removing refrigerant form a system and storing it in a recovery cylinder 33. an electrical storage device used to start motors or to improve the efficiency of motors 35. any pressure below atmospheric pressure expressed in inches of mercury 39. electrical current that reverses its direction at regular intervals