What water pressure is required for the ice maker and water dispenser to work properly?

Water pressure must be between 20 and 120 PSI on models without a water filter, and between 40 and 120 PSI on models with a water filter. If using a reverse osmosis system, the water pressure needs to be a minimum of 40 to 60 PSI. Water pressure below these levels may result in reduced ice production or poor water dispensing. (Page 9, 26)