Refrigerant R1234YF Water Content
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- Only very small amounts of water are soluble in liquid refrigerant. On the other hand, refrigerant vapor and water vapor mix in any ratio.
- Any water in the refrigerant circuit will be entrained in droplet form once the dryer in the fluid or collecting container is saturated (it has absorbed approximately 7 grams of water). This water flows up to the expansion valve nozzle or restrictor and turns to ice, and the A/C system no longer has a cooling effect.
- If the water present on the A/C compressor regulator valve turns to ice, it can lead to different complaints depending on the design of the A/C compressor (either the A/C system does not cool or it cools so strongly that the evaporator ices up).
- Water destroys the A/C system, because it can form acids when combined with other contaminants at high pressures and temperatures.