Functions Of Main Components - A.O. Smith PEARL ULTRA User Manual

Upflow Regeneration
Upflow brining, injects hard water at the base of the resin bed, allowing
it to flow upwards through every media layer before the pristinely soft
water is delivered to your tap meaning the full softening capacity
of the resin is utilized and less frequent regeneration is required.
In general, upflow brining softener systems are more brine efficient than
downflow systems. In the end, the upflow system will result in saving
15% salt and maximum resin efficiency.
Functions of the Main Components
Control Valve
• 24 Hours control and monitoring; automatically regenerate the medial
bed at the system's set time of regeneration according to the set
regeneration frequency.
• Automatically calculate and design more scientific cycle plan according
to the quality of supply water and the user's actual water use.
• Cycle process:
- In Service: Supply water with suitable pressure and flow rate flows
into softener, and the cations concerns to water hardness (Ca²
Mg² , etc.) in the water will be replaced by Na
+
then the softening system supply softened waterthrough its outlet.
- Backwash: When the ion exchange resins are out of effect, the resin
bed needs to be regenerated. And before the regeneration of resin
bed, a backwash step is absolutely necessarily for two main puposes:
- Remove the residuals and resin shatters in the resin bed
- Loose the impacted resin bed for a better regeneration effiency.
- Brine: Under certain concentration and flow rate conditions, brine flow
through entire resin bed, then the saturated resins will resume their
softening capacity.
Regenerant
In
Hardness
Minerals
Out
Marginally
Regenerated
Zone
- Rinse: Rinse the resin bed to remove the residual regenerant (salt) in
it after Brine step until the water from outlet contains no regenerant
rinse could also impact the resin bed for a better softening effect.
- Fill: Refill water to brine tank to dissolve salt for the next regeneration.
Cabinet as Brine Tank
• Refill water and salt meet each other in the brine tank, and the salt will
dissolve continously to water through natural convection until
,
+
the water is saturated by salts.
in regenerants,
+
• Refill Cabinet
- Manually initiate a whole regeneration cycle after resin tank filling
to fill appropriate water to cabinet.
- Salt level should be higher than water level at first time.
There should be enough solid salt at anytime.
Ion
Exchange
Resin
Downflow
(Cocurrent) (Countercurrent)
Regenerant
In
Hardness
Minerals
Out
Highly
Regenerated
Zone
Upflow
ENG 13