R22 and R404a Phase out

Commonly for all the replacement refrigerants available, is that a careful evaluation of the systems current design and performance is needed prior to selection.

A straightforward solution is not always available. The best choice depends on the specific equipment and is decided by a number of design criteria.

Using alternative refrigerants in the same system can reduce the systems cooling capacity, especially when the refrigerant alternative is limited by the pressure vessel design and/or the evaporator is of the flooded type.

For some applications, a minor capacity loss can be acceptable. Capacity loss can also be acceptable if the utilization of the systems original design capacity allows it or available backup capacity can be included in the normal operation.

If a capacity reduction is unacceptable, it will in some situations be possible to correct the capacity loss by modifying the system with components that increase the system capacity. In other situations a replacement of major sections of the system or a total replacement is required.

We often have most of the information needed to evaluate the system in our files. However, supplementary input on utilization of the installation, acceptable reduction of capacities if any, the general state of the plant as it is, outlook on expected lifetime, etc. will always be required in order to work out the best solution.

We recommend that a qualified engineer from one of our service branches attends the installation for an on site survey.