GE GNPR40L Owner's Manual & Installation Instructions

Also see for GNPR40L: Owner's manual and installation instructions

SALT PER REGEN AND CAPACITYThese two settings are required to provide the mostefficient operation of the system in your installation.Salt efficiency is improved by regenerating part ofthe capacity. For example, the GNPR40 has 37,100grains of capacity. It is more efficient to regenerate20,000 grains of capacity more frequently thanwaiting and regenerating the complete 37,100grains.Both SALT PER REGEN and CAPACITY aredetermined based on the chart on page 13.FOR CALIFORNIA INSTALLATIONS:• California regulations require the control settingto yield 4,000 grains of capacity per pound of salt.To meet these requirements, the SALT PER REGENand CAPACITY must be set no higher thanindicated below:12Installation InstructionsTIME OF REGENERATIONThe system has a default setting of 2:00 a.m.To change:• Use the UP or DOWN button to select a newtime for regeneration.• Use procedure in SET PRESENT TIME OF DAY.• Press the SET button to accept.TOTAL WATER HARDNESSWater hardness is the hardness of the supply waterto the house in grains per gallon. The system has adefault setting of 25 grains/gallon.A water test should be performed at the timeof installation to determine your water hardness(grains/gallon). You can get the grains per gallon(gpg) hardness of your water supply from a wateranalysis laboratory. If you are on a municipalsupply, call your local water department. If yourreport shows hardness in parts per million (ppm),simply divide by 17.1 to get the equivalent numberof grains per gallon.To change:• Use the UP or DOWN button to select totalwater hardness.• Press the SET button.• Change the digits by using the UP , DOWNor LEFT button.• Press the SET button to accept.Model Capacity Default Salt DefaultGNPR40L 16.5 KGr 4.0 lbsGNPR48L 15.2 KGr 3.6 lbsGNPR48LCapacity (1,000 grains)Salt Setting (lbs) 302520151050 0 10 20 30 40 50GNPR40LCapacity (1,000 grains)Salt Setting (lbs) 302520151050 0 10 20 30 40 50