Pentair Autotrol 255 Series - Flow Diagrams

FLOW DIAGRAMS
255 Valve
Service Position
Brine Tank
Mineral Tank
Drain
Inlet
Outlet
Hard Water
Soft Water
5
3
1
2
4
6
Drain Control
6
Air Check
Valve No.
1-Closed
2-Open
3-Open
4-Closed
5-Closed
6-Closed
Brining Position
Brine Tank
Mineral Tank
Drain
Inlet
Outlet
Hard Water
Soft Water
3
6
Drain Control
6
Air Check
1
5
2
4
Valve No.
1-Open
2-Closed
3-Closed
4-Open
5-Open
6-Closed
Backwash Position
Brine Tank
Mineral Tank
Drain
Inlet
Outlet
Hard Water
Soft Water
3
6
Drain Control
6
Air Check
5
2
4
1
Valve No.
1-Closed
2-Closed
3-Open
4-Open
5-Closed
6-Open
Slow Rinse Position
Brine Tank
Mineral Tank
Drain
Inlet
Outlet
Hard Water
Soft Water
5
3
2
4
6
Drain Control
6
Air Check
1
Valve No.
1-Open
2-Closed
3-Closed
4-Open
5-Open
6-Closed
16 •AUTOTROL
®
255 Valve/400 Series Service Manual