Hayward Sense and Dispense AQL-CHEM User manual

AQL-CHEM
&
AQL-CHEM2(-240)
AQL-CHEM3-120/240
Copyright 2014 Hayward Industries Inc.
Sense & Dispense
TM
Troubleshooting
Guide

Table of Contents
Important safety
instructions Pg. 1
Check System: ‘pH Low’
Pg. 11-13
Important
Information and Compatibility Pg. 2
Check System: ‘pH High’
Pg. 14-17
Maintenance
Pg. 3
Check System: ‘pH
Timeout –Chk
feedr
’Pg. 18-20
Maintenance
: Probe Cleaning Pg. 4
Check System: ‘pH Calibration Error’
Pg. 21
Calibrating the pH Probe (Pro
Logic) Pg. 5
Check System: ‘ORP
Low –Chk
Chlor
.’ Pg. 22-23
Calibrating the pH Probe (Aqua Rite Pro)
Pg. 6
Check System: ‘ORP High
–Chk
Chlor
.’ / ‘Chlor. Off’ Pg. 24-25
Resetting
the ‘pH/ORP Timeout’ Error Pg. 7
Check System: ‘ORP Timeout
–Chlor
.
Off’
Pg. 26-27
Check System: ‘CSM
Comm Error’ Pg. 8-9
Flow Charts
Pg. 28-33
Check System: ‘pH Probe
Error’ / ‘ORP
Probe Error’
Pg. 10

Sense & Dispense Diagnostics
Page 1
!
Warning
High Voltage Electrocution Hazard
Hazardous voltage can shock, burn, cause serious injury
and or death. To reduce the risk of electrocution and or
electric shock hazards:
•Only qualified technicians should remove the panel
•Replace damaged wiring immediately
•Insure panel is properly grounded and bonded

Important Information
Page 2
•Sense and Dispense™ is designed for use with the following Goldline Controls:
ProLogic ™(Version 3.0 or greater)
Aqua Plus ™(Version 3.0 or greater)
AquaRite Pro ™
•In all cases, verify that proper water flow is passing through the flow cell.
•Remember to recalibrate the pH probe anytime it has been cleaned or replaced.
•Always measure the complete water chemistry using a third party test kit(s)
capable of testing salt, free chlorine, pH, alkalinity, stabilizer, calcium hardness,
and phosphates.

Recommended probe maintenance schedule:
Probe maintenance indicators:
1. Slow response to water chemistry changes.
2. Increased need to calibrate pH.
3. Inconsistent readings.
Maintenance
Page 3
1. Probes must be clean and free of oils, mineral deposits, and contamination in
order to function properly.
2. Probe tips must be kept wet at all times, if left out of water or storage solution
the probes will dry out and permanent damage will result.
3. Probes must be removed and kept wet during winterization.
4. Replace acid feed tubing annually.
Residential –at least once every three months.
Commercial –every 30 days.
Important Maintenance Information:

Maintenance –Probe Cleaning
Page 4
Step 1
Unscrew & remove the probes from
the flow cell chamber.
Step 2
Step 3
Clean the probe tip and white reference area
with a soft tooth brush and regular
toothpaste or liquid dish washing detergent.
Step 4
Rinse with fresh water, remove and replace
the Teflon tape, & reinstall the probes.
Finally recalibrate the probe (Page 5 for Pro
Logic or Page 6 for Aqua Rite Pro).
Disconnect the probe connectors
from the flow cell.
Note: During the cleaning process it is crucial to keep the tips of both the ORP and pH probes wet. If the probes dry out
they will be incapable of providing an accurate reading.

Calibrating the pH Probe (Pro Logic)
Press the ‘Menu’ button until ‘Maintenance
Menu’ is displayed.
Step 1
Step 2
Press the right arrow button one time and press
the plus (+) button to enter pH calibration.
Step 3
Use the plus (+) or minus (-) keys to increase or
decrease the pH value.
Step 4
Press the right arrow key to show current reading
and new results. Press the right arrow again.
Press the plus (+) key to save the value.
Step 5
Press the right arrow key twice to complete the
calibration.
Step 6
Always verify that the pH probe is clean prior to running the calibration procedure. Also, when testing the pH reading
independently, it is important to obtain test water from the flow cell chamber (where the probes measure the water).
Page 5

Calibrating the pH Probe (Aqua Rite Pro)
Page 6
Press the ‘Settings’ button shown above. The
‘Settings Menu’ will appear.
Press the right arrow button three times and
press the plus (+) button to enter pH
calibration.
Use the plus (+) or minus (-) keys to increase
or decrease the pH value.
Press the right arrow key to show current
reading and new results. Press the right arrow
again.
Press the plus (+) key to save the value.
Press the right arrow key twice to complete
the calibration.
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Always verify that the pH probe is clean prior to running the calibration procedure. Also, when testing the pH reading
independently, it is important to obtain test water from the flow cell chamber (where the probes measure the water).

Resetting the pH/ORP Timeout Error
Page 7
ProLogic Aqua Rite Pro
Press the ‘Menu’ button until the ‘Default Menu’ appears.
Press the right arrow button until the ‘pH/ORP Timeout –
Chk Feedr’ appears.
Press the plus button (+) to clear the error.
Press the ‘Info’ button shown above. The ‘Info
Menu’ will appear.
Press the right arrow button until the ‘pH/ORP
Timeout –Chk Feedr’ appears.
Press the plus button (+) to clear the error.
Step 1
Step 2
Step 3
Step 1
Step 2
Step 3

If not connected, plug in and reboot the system. If
connected or error does not go away, power unit
up and go to step C.
Check System Light On
CSM Comm Error
‘CSM Comm Error’ (Chemistry Sensing Module) will appear with the sensing module is not communicating with
the main circuit board.
With the power off, verify the CSM
cable is plugged in.
Step B
Verify the CSM cable is not cut,
kinked or damaged in any way.
Step A
If the cable is damaged then it will need to be
replaced. If the cable does not have any
damage, go to step B.
Page 8

Check System Light On
CSM Comm Error
‘CSM Comm Error’ (Chemistry Sensing Module) will appear with the sensing module is not communicating with
the main circuit board.
Verify the location of the flow cell.
Make sure it is not exposed to
direct sunlight.
Measure for 10-15 Volts DC across
pins 2 and 4 (Black and Red).
Step C
Unplug harness.
Check across pins 2
(Black) & 4 (Red) for
10-15VDC.
If no/low voltage is present, try another
COMM port (if available), if not replace
PCB. If the voltage is OK, go to step D.
If the flow cell is in direct sunlight,
relocate it or reduce sun exposure
(extreme heat can cause a ‘CSM Comm
Error’). If this does not correct the
problem or it is not in direct sunlight,
replace the module (GLX-SD-ELEC-MOD).
Page 9
Step D

Check System Light On
pH Probe Error / ORP Probe Error
The pH probe plugs into the top terminal and
the ORP probe plugs into the bottom
terminal. If the sensor are attached correctly
go to step F.
Verify that the pH probe and ORP
probe are plugged in to the
correct terminals.
Inspect the probe connections to
ensure that the connectors are clean.
If the connectors are clean replace the probe that
corresponds with the error (GLX-PROBE-PH) or
(GLX-PROBE-ORP). In some rare cases the
problem can be caused by a bad module (GLX-
SD-ELEC-MOD).
Step E Step F
Page 10

The factory setting (non-adjustable) for pH Low Is a pH level of 6.9 or less.
Test the water to verify the pH
value of the water.
Check System Light On
pH Low
Page 11
Step G
It is important to test the pH value of
the water in the flow cell as well as
the water in the pool. If pH is low in
both the pool and flow cell, add soda
ash to raise and go to step L. If the
pH is low in the flow chamber only,
go to step H. If the pH is not low at
all go to step J.
Inspect the pH reduction feeder for proper operation. The injection point
must be down stream of all equipment and the water connections for flow
cell. Also make sure water is flowing through the flow cell chamber. 1
GPM is ideal, while .8 to 2.2 GPM is acceptable. Turn the pump off,
remove the probes, flush out the flow cell using mild dish soap and water
(make sure the probe tips are stored in water to ensure they do not dry
out). Once the flow cell is clean fill up with water and reinstall probes.
Step H
If a CO2 tank or Stenner pump is being used for pH
reduction check the injection point.

Page 12
Clean the pH probe and run system
for 120 minutes.
Step J
The factory setting (non-adjustable) for pH Low Is a pH level of 6.9 or less.
Check System Light On
pH Low
Follow the steps on page 4. Once probe is
clean, run the filter pump for 2 hours. Check
readings. If the readings are not accurate
within 10% go to step K.
Step K
Recalibrate the probe under the ‘pH
Calibration Wizard’.
If attached to a ProLogic follow instructions on page
5. If attached to an Aqua Rite Pro follow
instructions on page 6. After recalibrating the probe,
if the variance between the independent test and the
system’s reading is more than 10% different, then
replace the pH probe.

Page 13
The factory setting (non-adjustable) for pH Low Is a pH level of 6.9 or less.
Check System Light On
pH Low
If the voltage is present then the pH
reduction circuit has been
compromised and the main board will
need to be replaced (GLX-PCB-PRO or
GLX-PCB-AR-PRO). If voltage is 0 and
CO2is being used, go to step M.
If a CO2 tank or Stenner pump is being used, turn pump
off and check pH reduction circuit for 120 or 240VAC.
Step L Step M
If the valve continues to release CO2
despite the absence of power
replace the valve (AQL-CHEM2 or
AQL-CHEM2-240).
For AQL-CHEM2 only:
With the pump off, make sure CO2
is not being released.
If dispense is tied to a relay
check low voltage side for
20-25VDC. If present
replace board, if not and
dispense is running
replace relay (GLX-RELAY).

The factory setting (non-adjustable) for pH High is a pH level of 8.1 or higher.
Test the water to verify the pH
value of the water.
It is important to test the pH value of
the water in the flow cell as well as the
water in the pool. If pH is high in both
the pool and flow cell, add muriatic
acid to lower and go to step P. If the
pH is high in the flow chamber only,
go to step O. If the pH is not high at all
go to step R.
Step N
Check System Light On
pH High
Remove the probes, close the valves and
clean the flow cell with dish soap.
It is important to keep the probe tips wet at all
times when removing the probes. Close both
influent and effluent lines and use a teaspoon of
dish soap (left). Drain the flow cell (right) and fill
flow cell with water, reinstall probes and open
valves. Retest pH levels. Go to step R.
Step O
Page 14

The factory setting (non-adjustable) for pH High is a pH level of 8.1 or higher.
Check System Light On
pH High
If tank is depleted, refill or replace the canister. If the
Stenner pump is being used, make sure the speed is set
to 10 (on the right) and the pump toggle switch is set to
ON, also inspect feed tubes. For CO2, make sure the
tank’s valve is all the way in the open position. If salt
chlorination is being employed, go to step Q.
Step P
If a CO2 tank or Stenner pump is being used for pH reduction, check tank to make
sure it is not depleted, clogged or turned off.
Note: If a Stenner pump is being used make sure the #5 tube (GLX-SP-LP5TUBE) is installed this will
maximize the amount of acid dispensed for pH reduction.
Page 15

The factory setting (non-adjustable) for pH High is a pH level of 8.1 or higher.
Check System Light On
pH High
Page 16
Check the chemistry in the pool
with emphasis on the free chlorine
and the Cyanuric Acid levels. If CYA is under
60ppm.
Chlorine
production.
If the CYA is lower than 60ppm a larger percentage of chlorine
is being broken down by UV light. As a result a longer chlorine
run time is required which raises the pH level in the pool.
Balance chemistry according to the owner’s manual.
pH
If chlorine is high, lower the
chlorinator percentage or ORP set
point. The process to make high
levels of chlorine can cause the pH
to rise (right).
Step Q

The factory setting (non-adjustable) for pH High is a pH level of 8.1 or higher.
Check System Light On
pH High
Clean and the pH probe and run
system for 120 minutes.
Step R
Follow the steps on page 4. Once probe is
clean run the filter pump for 2 hours. Check
readings. If the readings are not accurate
within 10% go to step S.
Step S
Recalibrate the probe under the ‘pH
Calibration Wizard’.
If attached to a ProLogic follow instructions on page
5. If attached to an Aqua Rite Pro follow
instructions on page 6. After recalibrating the probe,
if the variance between the independent test and the
system’s reading is more than 10% different, then
replace the pH probe.
Page 17

Check System Light On
pH Timeout –Chk Feedr
Test the water to verify the pH
value of the water.
It is important to test the pH value of
the water in the flow cell as well as the
water in the pool. If pH is high in both
the pool and flow cell, add muriatic
acid to lower and go to step U. If the
pH is high in the flow chamber only,
go to step V. If the pH is not high at
all go to step W.
Step T
Remove the probes, close the valves and
clean the flow cell with dish soap.
It is important to keep the probe tips wet at all
times when removing the probes. Close both
influent and effluent lines and use a teaspoon of
dish soap (left). Drain the flow cell (right) and fill
flow cell with water, reinstall probes and open
valves. Retest pH levels. Go to step W.
Step V
Page 18