Hi all

My company is currently looking to replace an 8 ton an hour spiral chicken freezer with an 8 ton an hour carton box freezer.
After approaching the relevant companies who specialize in this design we have obtained the necessary quotes and are starting the tender process. One thing we have noticed is that all the quotes show different kWr refrigeration capacity.
I decided to look into this and do my own research into the actual kWr calculations and have also always come up with different answers when using different methods.

Is there anyone out there who can help with this, I would appreciate the insight from a specialist