7
Wiring the Pigtail or pH Dispensing Device
Two pigtails (120VAC and 240VAC) are included with the AQL-CHEM sensing kit to
be used with pH dispensing devices (peristaltic pumps, solenoid valves, etc.) that
require a plug-in receptacle, including the Hayward AQL-CHEM2 and AQL-CHEM2-
240. If your pH dispensing device will be direct wired (hardwired), the pigtail is not
necessary. Note that the Aqua Rite Pro can control a 120VAC or a 240VAC pH related
dispensing device. The Pro Logic can only be used with 120VAC devices.
NOTE: Follow local codes for pigtail installation. Installation may require retrofitting
a weather-tight outlet and plug to the pigtail and dispense hardware (such as Cooper
WaterTight or similar connectors) or weather proof junction box.
A screw terminal block located inside of the Aqua Rite Pro enclosure is provided for
connection to the pigtail or pH dispensing device. If connecting to a Pro Logic, the
120VAC pigtail or 120VAC direct wired pH dispensing device will connect to one of
the internal relays. If using a P-4 or PS-4 operating software version less than 4.00, the
relay that is supplied with the AQL-CHEM must be installed and used for connection
to the 120VAC pigtail or direct wired device.
Refer to the following information and diagrams for proper wiring of the pigtail or
direct wired device.
Aqua Rite Pro
IMPORTANT:
Input power to the Aqua Rite Pro must be provided by a GFCB (Ground
Fault Circuit Breaker).
240 VAC
120 VAC
N
L2
L1
L1
EP1
EP2
Ground
For 120VAC operation
position connectors as shown
Ground
to 120VAC Pigtail or
120VAC pH Dispensing Device
to 240VAC Pigtail or
240VAC pH Dispensing Device
WHITE
WHITE
BLACK
BLACK
EP1
EP3
240VAC pH Dispensing Device
(Factory Default)
120VAC pH Dispensing Device
Aqua Rite Pro
Aqua Rite Pro
Timeout" message if the timeout value is exceeded (1-24 hours). This prevents a
situation where the Aqua Rite Pro or Pro Logic is constantly generating chlorine
because of a probe error or external problem with the pool and allows the pool owner
to evaluate the pool chemistry before continuing with ORP control. The Timeout can
be reset in the Check System Default Menu display.
pH Calibration Wizard
After installation, the pH probe must be calibrated using the pH Calibration Wizard.
Periodically, a pool water test should be compared to the pH level reported by the
Aqua Rite Pro or Pro Logic. If there is a discrepancy between the two values, the pH
Calibration Wizard should be redone.
Run the pool pump for a minimum of 20 minutes before starting the pH Calibration
Wizard. The procedure to perform the Wizard is shown below. Detailed information
about specific screens can also be found below.
Aqua Rite Pro
1.
Press the "Settings" button.
2.
Press ">" repeatedly until "pH Calibration Wizard" is displayed.
3.
Push "+" to start Wizard.
4.
Advance through the Wizard using "<" and ">" buttons. Use "+" and "-"
buttons to answer questions when prompted.
5.
Continue until finished.
Pro Logic
1.
Press "Menu" until Maintenance Menu is displayed.
2.
Press ">" repeatedly until "pH Calibration Wizard" is displayed.
3.
Push "+" to start Wizard.
4.
Advance through the Wizard using "<" and ">" buttons. Use "+" and "-"
buttons to answer questions when prompted.
5.
Continue until finished.
Enter Independent pH Test Result
Test the pH of the pool water with a dependable quality test kit after the pool pump
has been running for a period of time. Hayward suggests that you take more than one
test and average the results before entering the value in the pH Calibration Wizard.
After entering the pH value, press the "+" button to calibrate the pH probe. A "Check
System" warning will display if the probe value and the entered value are different by
± 1.0 or greater. If this is the case, retest the pH (possibly with another test kit) and
consider cleaning the pH probe per the instructions found in the Probe Maintenance
section of this manual.
Configuring the pH Dispense Relay
(
Pro Logics operating with software ver-
sion less than 4.00)
IMPORTANT:
The relay used to control the AQL-CHEM2(-240) or other pH dispens-
ing device needs to be configured properly to prevent accidental release of CO
2
or
acid into the pool water. Determine which relay is being used (this is the relay that the
pigtail or 120VAC pH dispensing device is connected to). Follow the configuration
procedure found in the Pro Logic Installation and Operation manuals under Configu-
ration Menu to set the function of this relay to "pH Dispense". An example of this
(using Aux1) is shown on page 13. Note that PL-P-4 and PL-PS-4 models will require
the additional relay to be installed and automatically use Aux 3.
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