Regeneration Sequence For Twin And Lockout Systems; Twin Alternating Systems - Pentair Autotrol 255 Installer Manual

3.6.

Regeneration Sequence for Twin and Lockout Systems

Note
Perform a first regeneration for each tank, it will synchronize the camshafts if not already
synchronized.
Note
When you fill water in the system, repeat operations described on chapter 7.1. Water filling,
draining and watertightness inspection, page 58, for each tank.

3.6.1. Twin alternating systems

In this example, tank 1 is in stand-by position whereas tank 2 is in service position.
When an immediate regeneration is initiated, tank 2 stay in service whereas tank 1 moves to C5, C6,
C7, C8 and to the service position.
Once tank 1 reaches the service position, tank 2 moves to C1, C2, C3, C4 and to stand-by position.
Cycles repeat themselves so on.
Stand-by
Tank 1
C5
C6
C7
C8
When an immediate regeneration is initiated,
Tank 2 stay in service whereas tank 1 moves to:
Ref. MKT-IM-021 / A - 20.02.2019
Installer Manual 255/LOGIX 742-762-764 - Description
Service
C1
C2
C3
C4
Once Tank 1 has reached the service position,
Tank 2 moves to:
Tank 2
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