SENTRY II 972SM Series, Operation And Maintenance Manual

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16
Programming
The control valve has been pre-programmed from the factory with the correct regeneration cycle program and
cycle times. The gallon capacity between regeneration can be changed by adjusting the water hardness.
Step 1 - Press the NEXT and the UP Arrow buttons at the same time and hold for 2 seconds.
Step 2 - Raw Water Hardness: Adjust to the correct hardness by pressing the UP or DOWN
arrow button. Default setting 20 grains per gallon. Press NEXT to go to Step 3.
Step 1 Step 2
Step 3 - Day Override: This setting should be set to 15 . Press NEXT to go to Step 4.
Step 4 - Regeneration Time: The system regenerates at 2:00 AM . This setting is adjustable. No
water should be used during regeneration. (Typically this is the middle of the night.)
Press NEXT to exit programming.
Step 3
Step 4
SET HARDNESS
20
SET
REGEN
DAY
15
REGEN
2:00
AM
GAL
Exit
Programming
Mode
Control Valve Programming