Compu Pool Products Compu Chlor User manual

Compu Chlor Manual AU 1
Compu Chlor Saltwater Chlorine Generator
Installation and Operation Manual

Compu Chlor Manual AU 2

Compu Chlor Manual AU 3
Compu Chlor Saltwater Chlorine Generator
Installation and Operation Manual
1.0 INTRODUCTION................................................................................................. 4
2.0 GETTING STARTED...........................................................................................4
3.0 SAFETY INFORMATION..................................................................................... 4
4.0 THE CHEMISTRY INVOLVED ............................................................................5
5.0 WATER CHEMISTRY..........................................................................................5
6.0 ADDING SALT TO POOL OR SPA......................................................................8
7.0 INSTALLATION................................................................................................. 10
8.0 INSTALLATION CHECKLIST............................................................................ 13
9.0 OPERATION..................................................................................................... 14
10.0 MAINTENANCE ................................................................................................ 15
11.0 TROUBLESHOOTING....................................................................................... 17
12.0 WARRANTY...................................................................................................... 18

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1.0 INTRODUCTION
1.1.1 Congratulations on your recent purchase of a Compu Chlor Saltwater Chlorine
Generator. Please take a moment to read through the entire manual before
installing your new unit. Your generator must be installed and operated as
specified.
2.0 GETTING STARTED
2.1.1 READ THIS FIRST. As with any electrical device it is very important that the
installation and service of this equipment be performed by a qualified person with
the skills and experience required to do it safely and correctly. Improper installation
or service can result in severe electrical shock to the installer or user of the
equipment or pool. Please choose your installer with great care.
3.0 SAFETY INFORMATION
3.1 IMPORTANT SAFETY INSTRUCTIONS, READ AND FOLLOW ALL
INSTRUCTIONS. SAVE ALL INSTRUCTIONS.
3.1.1 iWARNING: To reduce the risk of injury, do not permit children to operate this
device.
3.1.2 iWARNING: To reduce the risk of electric shock, fire or injury, service of this
device should only be attempted by a qualified professional.
3.1.3 iWARNING: Chemical Hazard - When mixing acid with water, always add the
acid to the water, never add water to the acid. When using the acid ensure to use
rubber gloves and appropriate eye protection.
3.1.4 Heavy pool (and/or spa) usage, and higher temperatures may require higher
chlorine output to maintain proper free available chlorine residuals.
3.1.5 Do not add chemicals directly to the skimmer as this may damage the cell.
3.1.6 If additional chlorine is required due to heavy bather loads, use Sodium
Hypochlorite to maintain an appropriate chlorine residual in the water. For outdoor
pools, chlorine residuals can be protected from destruction by sunlight by the
addition of stabiliser (cyanuric acid).
3.1.7 Maintaining high chlorine and very high salt levels above the recommended range
may contribute to corrosion of pool (and/or spa) equipment.

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3.1.8 Check the expiration date of any chemical test kits as test results may be
inaccurate if used after that date.
3.1.9 When replacing the cell, only use replacement cells having a label that clearly
states that it is a replacement cell for this model.
4.0 THE CHEMISTRY INVOLVED
4.1.1 The Compu Chlor chlorine generator by electrolysis creates chlorine to sanitize
your pool using the salt molecules (NaCL) in your water. A small electric charge is
applied across a set of titanium plates inside the Electrolytic Cell. This produces
Sodium Hypochlorite (NaOCl). In water, Sodium Hypochlorite dissociates into
sodium (NA+) and hypochlorite (OCl-) ions.
4.1.2 It is the hypochlorite ions that form with the hydrogen (H+) ions (from the water) to
form hypochlorous acid (HOCl), which is the active agent that destroys bacteria and
algae, and oxidizes organic matter. This form of chlorine works quickly in the pipe,
leaving only a mild residual in the pool.
5.0 WATER CHEMISTRY
5.1 WARNING: Prior to turning on your Compu Chlor Chlorine
Generator for the first time your water chemistry must be balanced
according to the following guidelines.
5.2 Required Salt and Pool / Spa Chemistry Readings
Swimming Pools
Spas
Free Available Chlorine
1.0 –3.0 ppm
3.0 –5.0 ppm
pH
7.2 –7.8
7.2 –7.8
Total Alkalinity
100 –120 ppm
100 –120 ppm
Calcium Hardness
200 –300 ppm
150 –200 ppm
Stabiliser (Cyanuric Acid)
30 –60 ppm
30 –60 ppm
Total Dissolved Solids
< 1,200 ppm
< 1,200 ppm
Salinity
2500 –3000ppm
2500 –3000ppm

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5.2.1 Chlorine Stabiliser (Cyanuric Acid). Chlorine Stabiliser is needed to maintain
proper levels of chlorine. Unstable chlorine can be destroyed by the sun’s UV
radiation within two hours. Chlorine stabiliser must be maintained between 30 –60
ppm.
5.2.2 Nitrates and Phosphates. These chemicals can cause extremely high chlorine
demands and will deplete chlorine from your pool. In some cases, they may even
lower your chlorine levels to zero. Your local pool professional can test for Nitrates
and Phosphates and recommend methods of removal.
5.2.3 Metals. Metals can cause loss of chlorine. Also, metals can stain your pool and tint
your water. Have your local pool professional check for metals and recommend
methods of removal.
5.2.4 Chloramines. Chloramines should not be present in pool water. When organic
materials are not fully oxidized by Free Chlorine, Chloramines are formed. This ties
up the Free Chlorine in your pool, and does not allow the chlorine in your pool to
disinfect. Chloramines also cloud pool water and burn the eyes. Shock the pool
with chlorine to remove Chloramines at the initial start up of the pool.
5.2.5 pH Levels. pH produced by a chlorine generator is close to neutral pH. However,
other factors usually cause the pH of the pool water to rise. Therefore, the pH in a
pool chlorinated by a chlorine generator tends to stabilize at approximately 7.8. If
the pool pH rises above 7.8, have a pool professional test to see if other factors
such as high Calcium Hardness or Total Alkalinity are the cause, and then balance
accordingly.
5.2.6 Total Dissolved Solids (TDS). Adding salt to pool water will raise the TDS level.
While this does not adversely affect the pool water chemistry or clarity, the pool
water professional testing for TDS must be made aware that salt has been added
for a chlorine generator system. The individual performing the TDS test will then
subtract the salinity level to arrive at the correct TDS level.
5.3 Water Chemistry Helpful Hints
5.3.1 Proper operation of the chlorine generator can be easily verified by inspecting the
Electrolytic Cell. The chlorine being produced will appear as a fog at one end of the
plates.
5.3.2 If the pool remains cloudy, or the chlorine residual tests low, then the chlorine being
produced is being lost due to high chlorine demand or improper water conditions.
Take a water sample to a pool professional to ensure that the pool water is
balanced correctly.
5.4 Recommended List
5.4.1 Read and keep your manual in a safe place.
5.4.2 Increase chlorine production when temperature goes up.

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5.4.3 Increase chlorine production when bather loads increase.
5.4.4 Use Stabiliser (Cyanuric Acid) to protect free chlorine in pool
5.4.5 Decrease chlorine production when temperature goes down.
5.4.6 Take pool water sample to a Pool Professional once per month.
5.5 Not Recommended List
5.5.1 Do not allow fertilizer anywhere near your pool. Fertilizers contain Nitrates or
Phosphates which cause severe chlorine demand in pool water.
5.5.2 Never use dry acid to adjust pH. A build up of by-products can damage the
Electrolytic Cell.
5.5.3 Do not add any pool water balancing chemicals (including salt) unless the Cell
Power switch is turned off.
5.5.4 Do not add any chemicals (including salt) to the skimmers.
5.5.5 Do not let salinity level drop below 2500 ppm.
5.6 Definitions
5.6.1 Algae. Plant-like organisms which grow in water. Especially active in summer
conditions where chlorine disinfectant levels are too low to destroy them. Algae
may be green, yellow, brown or black (Black Spot) in colour.
5.6.2 Chlorine Demand. The amount of chlorine that should be added to the water to
provide proper bacteria and algae control.
5.6.3 Chlorine Residual. The amount of chlorine left over, after the “demand” has been
met.
5.6.4 Combined Chlorine. Weak chlorine which is combined with the contaminants in
the water.
5.6.5 Free Chlorine. Active chlorine in the water with the potency to destroy
contaminants.
5.6.6 Shock Treatment. The removal by means of oxidation of those materials that have
chlorine demand.

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6.0 ADDING SALT TO POOL OR SPA
6.1 Adding Salt
6.1.1 DO NOT add pool/spa chemicals directly to the skimmer. This may damage the
electrolytic cell. Maintaining high salt levels above the recommended range can
contribute to corrosion of pool/spa equipment. If the chlorine generator has already
been installed, it must be turned off before adding salt. The required salt
concentration for the Compu Chlor is 2500 –3000ppm. Do not exceed a water
salinity of 3,000ppm.
6.1.2 For pools it is best to empty the required salt into the shallow end of the pool and
run the filter and pump simultaneously while the Compu Chlor chlorine generator is
off to circulate the water and dissolve the salt. Do not throw the salt bag into the
pool or spa as chemicals and inks on the bag can interfere with the water balance.
6.1.3 Salt may take 24 –48 hours to dissolve in the summer and longer in the winter.
Finer granules of salt will dissolve faster than compressed pellets.
6.2 Type of Salt to Use
6.2.1 The more pure the salt the better the life and performance of the electrolytic cell.
Use a salt that is at least 99.8% pure NaCl. The preferred salt is an evaporated,
granulated, food quality, non-iodized salt. Consult your local pool store.
6.2.2 Avoid using salt with anti-caking agents (sodium ferrocyanide, also known as YPS
or yellow prussiate of soda) that could cause some discolouration of fittings and
surface finishes in the pool.
6.2.3 Water conditioning salt pellets are compressed forms of evaporated salt and may
be used but will take longer to dissolve.
6.2.4 Do not use calcium chloride as a source of salt (use sodium chloride only).
6.2.5 Do not use Rock salt. Insoluble impurities mixed with the rock salt can shorten the
life of the electrolytic Cell.
6.3 Salinity Level
6.3.1 The Compu Chlor chlorine generator requires a salinity level of 2500 –3000ppm.
To achieve this salinity, follow the chart in section 6.3.4. If you are unsure of the
number of litres in your pool, double-check with the equations below.
Litres (Measurements in Metres)
Rectangular
Length x Width x Average Depth x 1000
Round
Diameter x Diameter x Average Depth x 775
Oval
Length x Width x Average Depth x 775

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6.3.2 If the salt level is low, determine the number of litres in the pool and add salt
according to the chart below. A low salt level will reduce efficiency of the chlorine
generator and result in low chlorine production. A high salt level can cause a salty
taste to your pool and may damage the chlorinator and other pool equipment. In
addition, operating the unit outside the required salt level will rapidly reduce the
longevity of the Cell. The salt in your pool/spa is constantly recycled and the loss of
salt throughout the swimming season should be small. This loss is due primarily to
the addition of extra water to replace water lost from splashing, backwashing, and
draining (because of rain). Salt is not lost due to evaporation.
6.3.3 If salt content is too high you will need to reduce the level of water in your pool/spa
and refill the pool/spa with fresh water.
6.3.4 To initially start a pool with the correct amount of salt, add salt to the pool at a rate
of 25 kgs of salt for every 10,000 litres of water (see Table 1: Salt Table).
Salt Level before addition (ppm)
0
500
1000
1500
2000
2500
3000
How Much Salt to Add in kilograms
Volume of Water in thousands of Litres
10
30
25
20
15
10
5
0
20
60
50
40
30
20
10
0
30
90
75
60
45
30
15
0
40
120
100
80
60
40
20
0
50
150
125
100
75
50
25
0
60
180
150
120
90
60
30
0
70
210
175
140
105
70
35
0
80
240
200
160
120
80
40
0
90
270
225
180
135
90
45
0
100
300
250
200
150
100
50
0
110
330
275
220
165
110
55
0
120
360
300
240
180
120
60
0
130
390
325
260
195
130
65
0
140
420
350
280
210
140
70
0
150
450
375
300
225
150
75
0
160
480
400
320
240
160
80
0
170
510
425
340
255
170
85
0
180
540
450
360
270
180
90
0
6.3.5 Table 1 - Salt Table. Locate the column that contains your pool’s current salt
concentration in parts per million at the top of the chart. Then locate the row that
contains the size of your pool in litres at the left of the chart. Where the column and
row intersect within the chart is the number of kilograms of salt required to be
added to your pool.

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7.0 INSTALLATION
7.1 Overview
7.1.1 The Power Module is to be mounted at least 1 meter above ground level, and if
possible protected from direct weather. The Cell Module is to be plumbed into the
return line to the pool after the pump, filter and heater, if applicable (see Figure 1).
The Power Module must be installed 3 meters or more away from the pool edge.
7.1.2 Figure 1 - Installation Schematic.