On today’s video, we will compare the refrigerant gases R22 and its substitute in air conditioning equipment, R407C.
is R407c compatible with r22?
Let’s start with R22, which is a pure refrigerant composed of a single gas. On the other hand, R407C is an internal mixture of several gases.
The difference in composition is significant and has implications for recharging refrigeration systems that use these gases.
R22 can be recharged in both liquid and gaseous phases without any issues due to its pure refrigerant nature. However, R407C, being a gas mixture, must always be recharged in the liquid phase. This is an important consideration during refrigeration system maintenance.
In addition to the composition difference, it is interesting to note the internal proportion of each component in R407C.
R407C contains approximately 23% R32, 25% R125, and 52% R134a. These components contribute to the properties and characteristics of the refrigerant gas.
Another significant distinction between the two gases is their compatibility with different types of oil. R22 is compatible with mineral oil and alkylbenzene, but not with POE oil.
Conversely, R407C is only compatible with POE oil. This means that when replacing R22 with R407C in air conditioning equipment, it is necessary to change the oil due to differences in gas properties and lubrication requirements.
In terms of performance and cooling capacity, R22 generally outperforms R407C, although the differences are minor.
When it comes to performance in heating mode, both refrigerants exhibit similar characteristics, although the performance of R407C may be slightly lower.
Observing their relationship, it becomes clear that changing the capillary tube is unnecessary when replacing R22 with R407C.
R22 has the drawback of ozone depletion, which is the primary reason why it needs to be replaced with R407C.
The pressures of R22 and R407C are very similar. Let’s take a closer look at them.
Feel free to leave a comment or ask any questions you may have about refrigeration.
