8.4.1. General information

Precautionary measures during the work with coolant
R-134a coolant possesses a high volatility. Hit of a drop of coolant on skin can cause a local frostbite. During works with coolant use points for protection of eyes and gloves for protection of hands. At hit of coolant in eyes immediately wash out them water.
Container with R-134a coolant is under high pressure. It is forbidden to store capacity in places where it can be affected by high temperatures. Temperature of storage should not exceed 52 °C.
Check tightness of system an electronic techeiskatel. It is necessary to remember that R-134a coolant at impact on it of an open flame emits highly toxic gas phosgene.
For gas station of a contour of R-134a coolant use only oil of the specified brand. Use of oils of other brands can cause a system exit out of operation.
As PAG oil intensively absorbs moisture from air, it is necessary to observe the following precautionary measures:
– at removal of any details of a refrigerating contour at once muffle openings for protection against moisture hit;
– at installation of details of a refrigerating contour remove caps of openings just before installation of details;
– you make connection of all pipelines and hoses in the shortest time to prevent hit of moisture in system of the conditioner;
– use compressor oil only of the specified brand from a sealed container.
At casual leak of coolant from system air a workplace before to continue work.

Precautionary measures when replacing details of the air conditioning system
It is forbidden to weaken connections of details before discharge of coolant from system.
For prevention of hit of moisture at once close open openings of details caps or caps.
Remove protective caps only just before installation of a detail.
At connection of unions of details surely put new sealing rings, previously having applied coolant on the union and consolidation.