Flow Diagrams - Pentair Autotrol 255 Series Service Manual

FloW DIAGrAMS

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