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View Full Version : R404a to R407a Retrofit







Jurg
31-08-2017, 11:17 AM
Hi All,

Due to the ever increasing price and the fact 404a is being phased out I've been tasked with coming up with a plan to change it to 407a. The system in question contains around 600kg and is a multipack system, which operates at around 8 degrees Celsius currently and will do for the foreseeable future.

In regards to the things being considered I've listed below things that may need changing in order to accommodate this change:
- TEV's
- Pressure Switches
- PRV's
- Drier Filters
- Schraeder Valves
- Compressor oil change

If I've missed anything please feel free to tell me, any advice would be much appreciated.

Jurgen

FaultCode
31-08-2017, 06:00 PM
Is R407a the best choice ?

Some alternatives maybe... http://bit.ly/2eswIeT