A.O. Smith PEARL ULTRA User Manual page 25

• Water Usage
This setting is used to calculate the interval days between regenerations.
Monthly Water Usage is the water usage of average of months.
• Water Capacity
This value is the total capacity between regenerations. It is used to
determine how many gallons can be used between regenerations.
• Data Entry
This setting is used to calculate the key regeneration parameters (Capacity,
Refill Time, etc.). These data should be input correctly, wrong data will
cause the unit doesn't work properly.
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