Autotrol Magnum Cv 942, Installation And Service Manual, Page: 24 / 86

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Figure 5.4
6. When the refill is complete move the indicator knob
COUNTERCLOCKWISE to the Regeneration
Complete position (Figure 5.5). The unit will now
provide softened water.
Figure 5.5
*Note: The times given are only general guidelines.
Adjustment of the times may be necessary for specific
applications and conditions.
Regenerating Iron Filters - Model 942Man
Refer to Regenerating Iron Filters Model 942 in Section
5.2 for information on this type of system application.
All common control settings, control regenerant
settings, and regenerant usage which apply to the
942Man control are the same as those used on the 942
control.
When using the 942Man control however, the time of
each cycle cannot be predicted exactly. Note the
following regeneration cycle parameters:
•
Backwash the filter until the drain water flows clear,
typically 5 - 15 minutes.
•
Regenerant draw continues until the check ball
closes to end draw.
•
Slow Rinse should continue until there is NO pink
color to the drain water flow. This is typically four
times that of the regenerant draw time.
•
Fast Rinse time continues until there is no pink
color to the drain water flow, typically 5 - 15
minutes.
•
Refill time is determined by the size of the refill flow
control and the amount of regenerant required for a
particular size system. Refer to Regenerant Use
Table in Section 5.2.
Table 5.1 Suggested Refill Times
Tank
Diameter
Resin
cu.ft.
Refill PN
Refill Flow Rate
gpm (lpm)
@ 60 psig
(414 kPa)
Minimum Salting
(6 lbs/ft
3
)
(96.1 kg/m
3
)
Medium Salting
(10 lbs/ft
3
)
( 160.18 kg/m
3
)
Maximum
Salting (15 lb/ft
3
)
(240.27 kg/m
3
)
14 in (35.5 cm) 3 1040679 0.7 (2.6 lpm) 9 minutes 15 minutes 22 minutes
16 in (40.6 cm) 4 1040680 0.8 (3 lpm) 10 minutes 17 minutes 25 minutes
18 in (45.7 cm) 5 1040681 1.0 (3.8 lpm) 10 minutes 17 minutes 25 minutes
21 in (53.5 cm) 7 1040682 1.4 (5.31 lpm) 10 minutes 17 minutes 25 minutes
24 in (60.9 cm) 10 1040683 2.0 (7.6 lpm) 10 minutes 17 minutes 25 minutes
30 in (76.2 cm) 15 1040684 3.0 (11.4 lpm) 10 minutes 17 minutes 25 minutes
36 in (91.4 cm) 20 1040685 5.0 (18.9 lpm) 8 minutes 14 minutes 20 minutes