Parallel Operation; Twin Alternating Operation - Pentair 962 Series Operation Manual

Parallel Operation

The 962 Stager control can be used for twin and triple
tank applications, operating in a parallel mode. Parallel
systems can be implemented with up to three individual
controls by using the lock-out feature. Each control will
provide a lock-out signal when it is in regeneration. This
NOTE: The lockout feature is void when using the relay output option.
Twin Alternating using a model
58-TA stager
The 962 Stager control can be used for Twin Alternating
applications by combining a single 962 controller with a
single model 58-TA Twin Alternating stager. The
alternating of the system is performed by the stager and
is independent of the controller. When using a model
58-TA, the "Tank in Service" is indicated by two NEMA
4 rated door-mounted lights that are operated by the
stagers second auxiliary switch. When using a model
58-TA Twin Alternating stager, P17 must be set to a
4 or 6 depending on the number of positions.
lock-out signal will prevent other controls from starting a
regeneration when the controls are connected as in
Figure 2.
Figure 2 Parallel/Interlock Connections
Twin Alternating using a model
58-TB stager (Timed Brine)
The 962 Stager control can be used for Twin Alternating
applications that require a timed brine draw (using 58-
TR Stager). These Stagers do not use door-mounted
lights to indicate the "Tank in Service". The controller will
display the "Tank in Service" in the left-most digit of the
6-digit display. It will display a 1 or 2 depending on which
tank is in service. Flow is also displayed during this time.
If any error condition occurs, the "Tank in Service"
display will be set to a 2 by default. The controller will
reset the display to the proper tank in service once a
regeneration is performed on any tank. When using a
model 58-TB or 58-TR Twin Alternating stager, P17
must be set to a 9.
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