Refrigerant in 1/3hp Chiller Current USA - Support October 31, 2016 22:52 Updated Follow Our 1/3hp chillers required 6.5 oz of refrigerant - the charge is 27 lb on the low side/150 lb on the high side. Related articles Product Manuals & Wiring Diagrams Refrigerant in 1/4 & 1/3hp Inline Chiller What size threads are used on the Modular Chiller Heater and UV Ports? Gamma UV Sterilizer Replacement Parts Prime chiller that needs a replacement fuse. it is a 20amp 250volt fuse where can i fin... Comments 0 comments Article is closed for comments.