I recently started a new job at a company that is less apt to spend money on their refrigeration system! It is a shrimp process plant that is refrigerated with anhydrous ammonia. They have 3 small spiral freezers that run at -60 and all the door gasket leak bad. Ive looked all over the internet to look for fomulas to help me put some numbers together and have found nothing. Could someone please point me in the right direction.