Originally Posted by
Peter_1
You may not add all the compressors together in a cascade system. The condenser will only have to remove the heat from the highest stage, that's all.
The heat from the other stages is 'removed' with the compressor from the lower stages.
Keep up the postings, I'm interested.
Yuri B., this is indeed a very rough calculation not useful for this application. Your rough calculation is only valid for AC's - and even then - but certainly not for freezer and not talking about cascade.