CP Series Technical Manual
Page -10
Equipment Specifications
December 15, 2004
Rev.
3
Water Meter Disc
The frequency of regeneration can be adjusted without re-gearing the system. The
use of the water meter disc provides for multiple regenerations per 360º cycle on the
water meter. Each regeneration notch on a water meter disc will initiate a
regeneration when the regeneration start pawl drops into one of these segments and
engages with the teeth of the control disc. The number of regenerations within the
360º cycle is indicated by the number of the water meter disc.
Regeneration Pawls
It is important to realize that there are two regeneration pawls: the regeneration start
pawl and the regeneration drive pawl. The regeneration start pawl advances the
control disc enough to open the regeneration control valve. The water meter and
control disc advance together until the control disc uncovers one of the holes in the
ceramic disc located directly beneath the control disc. This opens the regeneration
control valve, which starts regeneration. Once the valve has opened, the
regeneration drive pawl continues to advance the control disc through the
regeneration cycle.
When open, the regeneration control valve allows water to pass through a nozzle
where it is directed to the regeneration turbine in the regeneration chamber. As the
regeneration turbine spins, it drives the regeneration drive pawl, which advances the
control disc.
Jet Regeneration
During the regeneration, water is used by the valve to control the sequence. For
units equipped with
Jet Regeneration
, a 0.2 gpm regeneration flow control is used to
limit the amount of water used. In addition to this small flow control, the regeneration
nozzle in the level 2, and the regeneration turbine in the level one are also modified
to accept these lower flow rates.
In non-Jet systems, a 0.4 gpm flow control, standard regeneration nozzle and an
open regeneration turbine are used.
The Jet feature is included with all CP Systems.
Control Disc
All internal valve positions are controlled by the Control Disc. As the control disc turns, it covers and
uncovers holes in the ceramic disc (located directly below the control disc), sending pressure signals to open
and close all internal valves. The sequence of regeneration and service configuration (alternating or
Overdrive) is based on the type of control disc installed.
White
Gray Black
Orange Tan Purple
PN
4689* 7931 4700 8637 5565 8635
Service Flow
Alternating
Alternating
Alternating Overdrive Overdrive Overdrive
Regeneration Sequence:
Backwash
--
3 %
--
12 %
--
--
Brine • Slow Rinse
75 %
60 %
60 %
57 %
76 %
--
Backwash
25 %
37 %
40 %
12 %
24 %
65 %
Purge
--
--
--
7 %
--
25 %
Meter
Disc 1
Meter
Disc 5
Regeneration start pawl
Normal
regeneration
gearing &
turbine
Jet
regeneration
gearing &
turbine
Regeneration drive pawl