8
IMPORTANT:
The dispensing device must be powered by the same voltage used to
power the Aqua Rite Pro. Configure the output voltage to the pH device by moving
the wiring connections on the mainboard according to the diagrams on page 7.
Example of AQL-CHEM2-240 used with Aqua Rite Pro:
The Aqua Rite Pro must be
powered by 240VAC. Connect the 240VAC pigtail supplied with the AQL-CHEM to
the Aqua Rite Pro’s terminal block as shown in the diagram on page 9. The AQL-
CHEM2-240 will then plug into the pigtail’s 240VAC receptacle.
Pro Logic
NOTE: The Pro Logic can only be used with a 120VAC pH dispensing device. There
are two Pro Logic versions that require different installation techniques. Pro Logics
operating with a software version less than 4.00 require the pigtail or pH dispensing
device to be connected to an internal relay. Units using version 4.00 or later have a
dedicated pH output through screw terminals mounted on the inside of the enclosure.
Refer to the instructions that relate to your particular version.
Pro Logic operating with software version less than 4.00
The 120VAC pigtail or 120VAC direct wired device is wired directly to one of the Pro
Logic relays. The particular relay used will depend on the Pro Logic model and the
auxiliary outputs that are already in use.:
Pro Logic P-4 and PS-4 models
: The factory installed relays can not be used. The
relay included with the AQL-CHEM kit must be installed and used to control the pH
dispensing device on these models. Installation instructions for this relay can be
found packaged with the relay. Once installed, wire the pigtail directly to this relay in
a similar fashion to the diagram on page 9. If a direct wired device will be used, wire
directly to this relay. The Pro Logic's Aux3 output will automatically be used to control
this relay and the dispensing device.
Pro Logic PS-8 and PS-16 models:
Any available Aux or the Lights relay can be
used. Locate a relay that is not already in use and wire the pigtail or direct wired
device according to the diagram on page 9. After configuration, the relay's corre-
sponding Aux/Lights output will be used to control the dispensing device.
The diagram on page 9 shows a typical installation of the 120VAC pigtail connected to
a Pro Logic PS-8 relay. The Pro Logic will control an AQL-CHEM2 that plugs into the
pigtail. If a direct wired pH dispensing device will be used, disregard the pigtail and
connect directly to the relay.
Chlorine Feed
(displayed for Aqua Rite Pro and Pro Logic if chlorinator is enabled)
Select the desired option related to chlorine generation.
ORP Auto
The Aqua Rite Pro or Pro Logic refers to the ORP level in the pool
and automatically adjusts chlorine output to maintain a desired level.
Timed (%)
The chlorine output is based on the manual setting only. ORP level
is not used to control the chlorinator output.
Maintain pH Level
The Wizard prompts you to enter the desired pH level (7.5 default). The Aqua Rite Pro
or Pro Logic will dispense CO
2
or other pH reducer when necessary to maintain this
level. The adjustable range is from 7 to 8 in 0.1 increments. Enter the desired pH level.
pH Alarms
The Aqua Rite Pro or Pro Logic will automatically set a high and low alarm for the pH
level. The high alarm point is 8.1 and the low alarm point is 6.9. If the pH level meets
or exceeds these points, a "Check System" message will display locally and on all
remote displays.
pH Feed Timeout
To protect the pool, the Aqua Rite Pro or Pro Logic control will automatically shut
down pH control and display a "Check System" message if the AQL-CHEM2(-240) or
other pH dispensing device runs continuously for more than the selected timeout
value. This prevents a situation where the Aqua Rite Pro or Pro Logic is constantly
feeding pH reducer because of a probe error or external problem with the pool and
allows the pool owner to evaluate the pool chemistry before continuing with pH
control. Use the "+" and "-" buttons to select a preset timeout value from 5 to 120
minutes. If the Aqua Rite Pro or Pro Logic exceeds this pH Feed Timeout, it can be
reset in the Check System display.
Maintain ORP Level
The Wizard prompts you to enter the desired ORP level (650mV default). Note that the
Aqua Rite Pro or Pro Logic will attempt to maintain this level but typically the pool's
ORP level will vary above this value during normal operation. The adjustable range is
from 400mV to 900mV in 5mV increments.
ORP Alarms
The Aqua Rite Pro or Pro Logic will automatically set a high and low alarm for the ORP
level. The high alarm point is 850mV and the low alarm point is 350mV. If the ORP level
meets or exceeds these points, an alarm message will display locally and on all remote
controls. Also, if the ORP level is too high, chlorine generation will shut down.
Chemistry Extend (Pro Logic only)
When the Chlorine Feed selection is set to ORP Auto Sensing and/or the pH Reduc-
tion Control selection is set to Auto Sensing, the Pro Logic will keep the pool filter
pump on regardless of its timer settings until the sanitizer level and/or pH level are
within their programmed parameters. The pump will continue to run and either chlo-
rine and/or CO
2
will continue to dispense until the programmed levels are reached.
When both sanitizer level and the pH level are within the desired levels, the pump will
be allowed to go back to automatic control.
Sanitizer Feed Timeout
When the Chlorine Feed selection is set to ORP Auto Sensing, the Aqua Rite Pro or
Pro Logic control will automatically shut down ORP control and display a "ORP
11
Sensing
