Hayward Goldline controls sense and dispense total pool chemistry... User manual

Installation and Operation Manual

for

AQL-CHEM2

AQL-CHEM2-240

North Kingstown, RI 02852 USA

092366C

GLINE

ROLS

GLINE

ROLS

June 2008

Download and use

the latest manual at:

www.goldlinecontrols.com

other end to the solenoid valve as shown in the diagram above.

8. Turn on pool pump and check for water leaks.

9. Open CO2tank valve and use soapy water to check for CO2leaks at regulator

fitting.

10. Temporarily apply power to the solenoid and use soapy water to check for

CO2leaks at tubing ends and fittings. Remove power when finished.

Wiring the AQL-CHEM2 or AQL-CHEM2-240

The AQL-CHEM2(-240) is supplied with a 6' power cord and is designed to plug into

the 120VAC or 240VAC Goldline pH Dispense Pigtail that is included with the AQL-

CHEM kit. The pigtail must be wired directly to the pH output on the Aqua Rite Pro or

the Pro Logic operating with software version 4.00 or later. For Pro Logics using

software version less than 4.00, the pigtail must be connected to an internal relay in

the Pro Logic. Installation instructions for the pigtail are provided with the AQL-

CHEM kit.

Plug theAQL-CHEM2 into the 120VAC pigtail or theAQL-CHEM2-240 into the 240VAC

pigtail. After proper configuration, the Aqua Rite Pro or Pro Logic will automatically

turn on the AQL-CHEM2(-240) when the pool’s pH level requires adjustment.

Configuration and Operation

Before operating the AQL-CHEM2(-240), the Aqua Rite Pro or Pro Logic’s Chemistry

Config. Wizard must be completed. Refer to the AQL-CHEM and Aqua Rite Pro or Pro

Logic manuals for information on how to complete the wizard as well as pH dispense

operation.

Questions?

Refer to www.goldlinecontrols.com for latest manual revisions,

additional information and helpful service.

Total Pool Chemistry

Aqua Rite Pro

Pro Logic

and

for

Introduction

The AQL-CHEM2 is a 120VAC CO2dispense kit designed for use with a Goldline Aqua

Rite Pro chlorinator or Pro Logic pool control. The AQL-CHEM2-240 is identical to

the AQL-CHEM2, but uses 240VAC. When used with the AQL-CHEM sensing kit, the

AQL-CHEM2(-240) solves the problem of how to provide low cost pH control for

backyard pools without having to handle acid. The AQL-CHEM2(-240) is designed to

install on a standard CO2tank and wire directly to the Aqua Rite Pro or Pro Logic.

Using the AQL-CHEM sensing kit, the Aqua Rite Pro or Pro Logic will sense the pH

level and if needed, the AQL-CHEM2(-240) will inject CO2into the pool water. CO2is

mildly acidic when dissolved in water and will lower the pool's pH slowly without the

safety or health concerns normally associated with harsher acids.

What's Included

The AQL-CHEM2 and AQL-CHEM2-240 includes the following:

-Pressure reducing regulator preset at 50 psi output

-110VAC (AQL-CHEM2) or 240VAC (AQL-CHEM2-240) solenoid valve with 6' power

cord

-Nylon washer and spare (only use one)

-15' of black UV resistant flexible tubing

-PVC check valve injector

CO2 information and availability

The AQL-CHEM2(-240) kit requires the use of CO2 which is supplied in cylinders that

are readily available from various sources. CO2 cylinders are offered in a variety of

sizes. Goldline recommends the use of 20 pound cylinders for most residential pool

applications. TheAQL-CHEM2(-240) uses a standard fitting for these tanks. CO2 can

be easily found at local and national welding supply or beverage companies. A quick

search on the web with the keywords “CO2 supply” will yield many companies, some

with hundreds of branch/store locations nationwide.

Installation

Installing the AQL-CHEM2 or AQL-CHEM2-240 requires the following steps:

-Mount CO2 tank using commercially available straps

-Attach the solenoid valve to the CO2 tank

-Install the PVC check valve injector to the pool's return plumbing

-Plug the solenoid valve into the pigtail of the Aqua Rite Pro or Pro Logic pool control

-Configure the Aqua Rite Pro or Pro Logic to control theAQL-CHEM2(-240)

This manual assumes that the Goldline AQL-CHEM Chemistry Kit and the pH Dis-

pense Pigtail (included with AQL-CHEM) have already been installed. If not, this will

need to be performed prior to installation. Refer to the AQL-CHEM manual for instal-

lation instructions.

Mount CO2 tank

Mount the CO2 tank in an easily accessible location. Straps or brackets can be pur-

chased from the tank supplier and must be used for a secure installation.

Attaching the solenoid valve

The solenoid valve attaches to the CO2 tank much like an outdoor gas grill attaches to

a propane tank. With the tank valve off, insert the included nylon washer and screw

the fitting of the AQL-CHEM2(-240) solenoid valve on to the CO2 tank. If the nylon

washer is lost or destroyed, a spare is provided. Keep the tank's valve off until the

entire installation is complete.

Installing the PVC check valve

When installing the PVC check valve, refer to the plumbing overview of the AQL-

CHEM and AQL-CHEM2(-240) shown below. The PVC check valve must be installed

at the pool's return line DOWNSTREAM of the electrolytic cell and flow switch.

Because mild acid will be dispensed at this location, it should be the last component

installed in the return line before water is allowed to flow back to the pool. Note that

the injection point must be free of air pockets and should be located at the underside

(or close to the underside) of the pipe.

To install the check valve, perform the following steps:

1. Turn off pool filter pump.

2. Drain water from the return line.

3. Drill a 7/16" hole in the bottom side of the return line AFTER the electrolytic

cell and flow switch.

4. Tap the hole for a 1/4" NPT. Use caution not to tap tapered threads too deeply.

5. Apply plumber's tape to check valve threads and screw into tapped hole. DO

NOT OVERTIGHTEN.

7. Connect one end of the provided 3/8" flexible hose to the check valve and the

FROM POOL

FROM SPA

RETURN

TO POOL

RETURN

TO SPA

POOL

pH dispense kit

Insert nylon washer

before attaching to tank

PVC check valve

mounted to

underside of pipe