Here, we present 14 compelling reasons to steer clear of these unfamiliar blends and refrain from introducing any gas other than R22 into the system.
- It can lead to a reduction in cooling capacity.
- It might result in a loss of efficiency, leading to increased electricity consumption. Consequently, this can lead to a rise in the average compressor temperature, impacting the lubricant and the machine’s lifespan.
- There’s a possibility that the discharge temperature of the mixture at the compressor’s outlet will be higher than normal.
- Depending on the blend, issues with lubrication might arise.
- For instance, the combination of gases like R22 and R417A can lead to unpredictable pressures and temperatures, thus negatively impacting efficiency and durability.
- The unpredictability of pressures, temperatures, and the loss of oil return could potentially harm the system.
- Excessive slippage might occur in the resulting blend. Remember, slippage refers to the increase in refrigerant temperature, as observed in the evaporator, for example.
- A high slip value, such as in the evaporator, could result in very high temperatures at its outlet, thereby affecting the cooling process.
- In cases where the mixture has a high slip value, the temperature at the evaporator’s outlet might become excessively high. This could consequently result in a compressor suction temperature above the normal range.
- Even with slight variations in thermal loads, the new mixture could trigger freezing in the evaporator.
- If the system employs pressure switches, abnormal pressures could activate these control devices.
- Some substitutes aren’t compatible with the mineral oil traditionally used with R22, such as R407C, which impacts oil return.
- If the equipment integrates a thermostatic expansion valve, its operation might be compromised as the superheat value measured by the bulb or a sensor becomes unpredictable.
- The environmental impact should not be ignored. Blends affect the atmosphere and the environment. While not illegal, irresponsible usage contributes to environmental harm.
In essence, it’s crucial to avoid preparing refrigerant blends with R22. Each of these points demonstrates that responsible choices and adherence to safe practices are imperative for optimal performance and to safeguard both the equipment and the environment.
