Kia Soul EV: Air Conditioning System / General Safety Information and Caution

Kia Soul EV (PS EV) 2015-2020 Service Manual / Heating,Ventilation, Air Conditioning / Air Conditioning System / General Safety Information and Caution

Instructions

When Handling Refrigerant

1.	R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves.

2.	It is standard practice to wear goggles or glasses to protect your eyes, and gloves to protect your hands. If the refrigerant splashes into your eyes, wash off immediately with clean water.

3.	The R-134a container is highly pressurized. Never leave it in a hot place, and check that the storage temperature is below 52°C (126°F).

4.	An electronic leak detector should be used to check the system for refrigerant leakage. Bear in mind that the R-134a, upon coming into contact with flame, produces phosgene, a highly toxic gas.

5.	Use only recommended lubricant for R-134a systems. If lubricants other than the recommended type are used, system failure may occur.

POE lubricant absorbs moisture from the atmosphere at a rapid rate, therefore the following precautions must be observed:

•	When removing refrigerant components from a vehicle, cap the components immediately to prevent entry of moisture.

•	When installing refrigerant components to a vehicle, do not remove the cap until just before connecting the components.

•	Complete the connection of all refrigerant tubes and hoses without delay to prevent the A/C system from taking on moisture.

•	Use the recommended lubricant from a sealed container only.

7.	Do not use the same A/C recovery / charging station as conventional belt-driven compressors.

Since the electric compressor uses high-voltage, you should use POE oil which have high volumetric resistivity.

•	If PAG oil mixes into the POE oil of the system, dielectric breakdown may occur due to decreased volumetric resistivity and the A/C compressor may not work.

9.	If an accidental discharging occurs in the system, ventilate the work area before resuming the service.

When replacing parts ON A/C system

1.	Never open or loosen a connection before the system has been discharged.

2.	Seal the open fittings of components with a cap or plug immediately to prevent intrusion of moisture or dust.

3.	Do not remove the sealing caps from a Replacement component until it is ready to be installed.

4.	Before connecting an open fitting, always install a new sealing ring. Coat the fitting and seal with refrigerant oil before making the connection.

When Installing Connecting Parts

Flange With Guide Pin

Check new O-ring for any damage (use only the specified) and lubricate with compressor oil. Tighten the nut to specified torque.

•	T stands for tensile intensity and is stamped on the head of each bolt in numerals.

Handling tubing and fittings

The internal parts of the refrigeration system will remain in a state of chemical stability as long as pure moisture-free refrigerant and refrigerant oil are used. Abnormal amounts of dirt, moisture or air can upset the chemical stability and cause problems or serious damage.

The Following precautions must be observed

1.	When the refrigeration system needs to be opened, have everything you will need to service the system ready so the system will not be left open any longer than it is necessary.

2.	Cap or plug all lines and fittings as soon as they are opened to prevent the entrance of dirt and moisture.

3.	All lines and components in parts stock should be capped or sealed until they are ready to be used.

4.	Never attempt to rebind formed lines to fit. Use the correct line for the installation you are servicing.

5.	All tools, including the refrigerant dispensing manifold, the gauge set manifold and test hoses, should be kept clean and dry.

Air Conditioning System

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Description and Operation

Refrigeration Cycle ...

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