Hyundai Tucson Quiz
Heating, Ventilation and Air Conditioning

General Safety Information and Caution

In this manual: Heating, Ventilation and Air Conditioning
General Information — 17Engine Mechanical System — 51Engine Electrical System — 26Emission Control System — 23Engine/Fuel Control System — 44Clutch System — 12MANUAL TRANSMISSION SYSTEM — 12AUTOMATIC TRANSMISSION SYSTEM — 42Four-Wheel Drive (4WD) System — 14Drive Shaft and Axle — 22Suspension System — 30Steering System — 16Restraint — 21Braking System — 47Body Work (Interior and Exterior) — 145Body Electrical System — 162Heating, Ventilation and Air Conditioning — 39
16steps
~96min
4/5difficulty
Done 0 of 16

PRECAUTIONS

HANDLING REFRIGERANT
  1. Liquid refrigerant R-134a is highly volatile. Contact with skin may cause frostbite. Wear gloves when handling refrigerant.
  2. Standard practice is to wear eye protection and hand protection gloves. If refrigerant splashes into the eyes, immediately flush them with clean water.
  3. The R-134a container is under pressure. Never leave it in heat, and make sure the storage temperature is below 52 °C.
  4. An electronic leak detector can be used to check for refrigerant leaks in the system. Remember that R-134a releases phosgene, a highly toxic gas, when it contacts a flame.
  5. Use only lubricant recommended for R-134a systems. Using different lubricants may cause system malfunctions. Check carefully.
  6. PAG lubricant absorbs moisture from the atmosphere quickly. The following precautions must be observed:
    • When removing refrigerant components from the vehicle, immediately plug them to prevent moisture ingress.
    • When installing these components in the vehicle, remove the plug immediately before connecting the components.
    • Connect all refrigerant pipes and hoses without delay to prevent moisture from entering the air conditioning system.
    • Use only recommended lubricant stored in a closed, airtight container.
  7. In case of accidental entry of drops into the system, ventilate the area and wait before continuing work.
  8. Never open or loosen a connection until the system has been discharged.
  9. Immediately and tightly close open connections of components with a cap or plug to prevent moisture or dust from entering.
  10. Do not remove the sealed caps from a spare component until the component is ready for installation.
  11. Before connecting an open joint, always install a new watertight seal. Apply a layer of refrigerant lubricant to the fitting and the joint before connecting.
  12. If it is necessary to open the refrigeration system, prepare every component needed for service so that the system is not left open longer than necessary.
  13. Plug or seal all pipes and fittings as soon as they are opened to prevent dust or moisture from entering.
  14. It is advisable to plug or hermetically seal all pipes and fittings when they are not in use.
  15. Never attempt to re-bend pipes to make them fit. Use the correct pipeline for the installation you are servicing.
  16. All tools, including the lubricant supply system, manifold gauge set and charging hoses, must be clean and dry.
WHEN REPLACING AIR CONDITIONING SYSTEM PARTS WHEN INSTALLING CONNECTING PARTS CONNECTION WITH GUIDE PIPE: Check that the new O-ring is not damaged (use only the specified O-ring) and lubricate it with compressor oil. Tighten the nut to the specified torque. HANDLING PIPES AND FITTINGS: The internal parts of the refrigeration system remain chemically stable because the refrigerant and refrigerant oil used are pure and free of any moisture. The presence of foreign matter, moisture or air in abnormal amounts may disrupt chemical stability and lead to problems or serious malfunctions. TAKE THE FOLLOWING PRECAUTIONS

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