7500-S Sediment Filter Installation & Startup Guide
Page 4
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Rev 083016
Set Output Signal Relay Controllers (Generally not used)
Underneath the valve are two relay outputs, one is normally closed contacts and one is
normally open contacts. These can be set to be normally open or normally closed. For this
setting you don’t need to do anything and can be left at b‐01.
Press the Menu/Confirm button.
Normal Operation
Now the display will cycle between:
Current time of Day
Days Left in Backwash Cycle
Time of Regeneration
Display will be locked, and blue Key icon will display.
Initial Backwash:
1
After programming, the system must be run through an initial backwash.
2
Close Inlet ball valve B and Outlet valve C, and open the bypass valve A, to turn off water
before starting.
3
From the initial valve menu, press the UP and DOWN buttons at same time to unlock. Then
press the Green Return/Manual Regeneration button (second button from left) and a the
valve will enter backwash mode. The backwash icon will be lit, and the time will count
down.
4
When the backwash icon is displayed, slowly open the inlet valve B to a quarter position to
make the water flow into the resin tank; you should be able to hear air escaping from the
drain pipeline. After all the air is out of the pipeline, open inlet valve B and clean the foreign
materials in the tank until the water is clean.
