I've searched and searched and can't seem to find this information anywhere, but I feel like I read it somewhere a while back.
If I have changed my system from R12 to 134a and I have swapped in a new, parallel flow condenser, do I still use the 90% rule of capacity for 134? I thought I had read that if you change to a parallel flow you should keep the original capacity?
Sorry you are not getting any answers. Reducing the charge for conversions is a WAG to compensate for poor heat rejection and high head pressures. Now you have changed the design of the condenser to a much better design. My WAG would be to go with full charge.
Thank you for the response
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