Zodiac LM3 Salt Water Chlorinator Owners Manual IMPORTANT
Contents
1. Zodiac LM3 Salt Water Chlorinator Owners Manual Congratulations on having purchased a Zodiac LM3 Saltwater Chlorinator for your pool You have made a wise decision and you will benefit from your Zodiac LM3 Saltwater Chlorinator for many years to come There are two major benefits in owning a Zodiac LM3 Saltwater Chlorinator The first is that you will save hundreds of dollars which you otherwise would have to spend on sanitising chemicals for your pool Not only do you save money but an even greater benefit which you will experience is the remarkable clarity of the water and the pleasure and exhilaration of bathing in slightly salty water By following just a few simple steps your pool will be a thing of beauty and pleasure and will win the admiration of your family and friends Please take the time to read through your Owner s Manual It is set out in such a way that you can see the simple steps to keep your pool or spa in sparkling clean condition If you would like to know more about how your new LM3 works or about water chemistry matters you will find that this owner s manual will provide you with useful information And don t forget that your Zodiac LM3 Saltwater Chlorinator is backed by a comprehensive warranty The exclusive Zodiac warranty is an expression of the confidence which Zodiac Group Australia has in its products and is your re assurance of prompt and expert after sales service by professional technicians For more information ta2. the cell should be checked to confirm it is functioning correctly Please contact your Zodiac service technician or your pool shop to have the cell tested Note Remove your automatic pool cleaner when adding salt or other chemicals Some Tips On Water Chemistry PH is very important Do not confuse pH with total alkalinity OH is a simple numerical scale which expresses the acid alkaline balance of the water A pH value of 7 0 denotes neutrality ie neither acidic nor alkaline High pH values ie above 7 0 denote alkaline conditions Low pH values below 7 0 denote acidic conditions How to adjust pH Aim for a pH range of 7 2 7 8 which is ideal for maximum comfort and minimum chlorine demand Always adjust total alkalinity before adjusting PH Low pH acidic water leads to stinging eyes and corrosion of open metal fittings Raise the PH by adding sodium bicarbonate soda ash or dry alkali First pre dissolve in water then add no more than 500 grams at a time Check the pH after each addition is thoroughly dispersed High pH alkaline water leads to clouding of the water and prevents the sterilising action of chlorine This means algae and germs can grow Lower the pH by adding hydrochloric acid to the pool water The acid demand indicated by a 4 in 1 test kit will show the amount of acid to use or check with your pool retailer If it is difficult to maintain the correct PH level check the total alkalinity Total alkalinity affects p
3. B using a large shock dose of chlorine or treat with phosphate remover Symptom E Eye and or skin irritation CAUSE Incorrect pH levels SOLUTION Adjust the pH to within the range 7 2 7 8 If the problem continues follow the remedy as for Problem B Symptom F Scale or calcium build up on electrode To clean the deposit from the electrode see Chlorinator Maintenance section CAUSE 1 Incorrect pH and hard water SOLUTION Adjust the pH to within the range 7 2 7 8 CAUSE 2 Total hardness SOLUTION Adjust the total hardness to between 150 175 ppm Symptom G Chlorine Output will not reach maximum CHECK SALT indicator may also be on CAUSE 1 Salt level below 4000 ppm or water very cold SOLUTION Add salt See Salt When and How to Add it CAUSE 2 Electrode reversing self clean SOLUTION If the electrode is reversing the yellow light on the Chlorine Output indicator will flash wait around three minutes and the output should return to normal CAUSE 3 Electrode may be damaged SOLUTION Replace electrode The electrode must be replaced with the same model electrode or the chlorinator will not function correctly see your pool retailer or Zodiac Group Australia Symptom H No Flow light on CAUSE 1 Insufficient water flow through the cell SOLUTION Ensure sufficient water flow through chlorinator cell Is the filter oump on Is the flow restricted because the filter needs backwashing Look for a pocket of air trapped
4. through the cell The chlorine production of the Zodiac LM3 is controlled by the number of hours the Zodiac LM3 and filtration system is ON as well as the setting of the output control For convenience the Zodiac LM3 and filtration system can be operated automatically through the Zodiac LM3 timeswitch An added feature of your Zodiac LM3 is the Super Chlorinate function which automatically Super Chlorinates the pool over a 24 hour period Your Zodiac LM3 is also fitted with 3 indicator lights that monitor the operation of the chlorinator and the concentration of salt in the pool The Zodiac LM3 is designed to require minimum operator maintenance and uses reverse polarity technology to minimise calcium build up on the cell Zodiac LM3 Models not fitted with timeswitch Power to these units may be controlled by the external filtration system timer The chlorinator functions may only be set when the filtration system is running The Super Chlorinate mode will increase the output for the next 24 hours of running time To use the Super Chlorinate mode effectively the filtration system should be run continuously for 24 hours EMY B CLEARWATER ZODIAC World s leading salt water chlerinators Control Panel Functions Output Button The output button is used to set the chlorine output of the Zodiac LM3 Chlorine output is selected by repeatedly pushing this button until maximum is reached on the chlorine output indicator An extra push of
5. timeswitch settings output power settings and Super Chlorinate settings for a maximum period of 20 days Caution Failure to observe the following could invalidate your warranty and damage pool equipment 1 Chlorinator must be installed and operated as specified 2 Your salt chlorinator has been fitted with an electronic flow switch This device automatically switches the chlorinator OFF when the water through the cell stops Do not in any way interfere with this system which has been fitted for your protection 3 Do not scratch or bend the plates in the cell housing 4 Power to the Zodiac LM3 should be turned off before unplugging the cell connectors 5 Do not immerse these terminals in acid wash solution and avoid accidental contact with salt water 6 Water above the temperature of 40 degrees Celsius must not flow through the cell 7 Water pressure in the cell must not exceed 200kPa 8 Check the electrode frequently to prevent the accumulation of pool debris that for any reason may have by passed the pool filter 9 Power pack must not be installed directly above any other heat source such as filter pump or heater It must be at least 300mm from the ground to allow free circulation of air around it It must not be enclosed in a closed box If the powerpack is to be installed on a post then it must be centrally positioned on a flat panel of suitable waterproof material at least 240mm wide and 440mm high As with all electron
6. to maximum output After a few minutes take a water sample from the pool Test this water with your test kit A minimum chlorine residual of 1 3 ppm is desirable SOLUTION e Adjust the pH within the range 7 2 7 8 Make sure your cell is clean Check cyanuric acid stabiliser levels Increase the setting of the output control Adjust total alkalinity to recommended range Test for phosphate Adjust total hardness to recommended range Increase the running time of the filter and chlorinator Make sure that the filter is clean and functioning properly e Add salt if the CHECK SALT indicator is on e Use chlorine stabiliser cyanuric acid to protect chlorine residual This chemical acts as a sun screen for chlorine and prevents chlorine being too quickly destroyed by the sun Chlorine stabiliser is essential to prolong the life of chlorine in the pool water It should be added following the manufacturer s instructions to achieve a level of 30 50 ppm This will probably be about 30 50 ppm for every 1 000 litres of water Take care that chlorine stabiliser levels do not exceed 80 ppm Copper based algaecides It can sometimes happen that some copper based algaecides catalyse break down chlorine in a pool This can produce the apparent contradiction that there is no chlorine residual reading but there is no sign of the pool water going green because of algae The explanation is that the copper based algaecide is controlling the algae but bre
7. water in the electrolytic cell sanitising the pool and then reverting to dissolved salt Everyday when the Zodiac LM3 and filtration system are switched on dust and debris are trapped by the filter and the Zodiac LM3 makes the water safe and sanitised Important To ensure your LM3 works at maximum efficiency regularly check and maintain the chemistry of your pool Zodiac recommends the following water chemistry readings for optimal performance of Zodiac LM3 Free Total Calcium Cyanuric Chlorine Alkalinity Hardness Acid ppm ppm ppm ppm Australian Standard 3 ppm 72 78 80 300 90 300 30 50 4000 7000 Ideal reading range 3 ppm ae 80 140 90 300 m 4000 ppm at OO gl Wa To increase Add chlorine Add buffer Add Salt or increase or soda ash Ae ai ail ic output of sodium bicarbonate calcium acid equipment carbonate chloride To decrease Add muriatic Add muriatic f Partially drain Partially drain Partially drain acid or amp refill pool amp refill pool amp refill pool dry acid When using chemicals always follow manufacturers directions and follow the advice of your pool professional Always use protective clothing gloves amp glasses Store amp use chemicals out of the reach of children Maximum safe salt level for Zodiac LM3 is 13 000 ppm Zodiac LM3 Saltwater Chlorinator Operation The Zodiac LM3 must only operate when the filtration system is ON and water is flowing
8. H Total alkalinity is a measure of the alkaline chemicals in your pool water eg Bicarbonates carbonates and hydroxides It can be thought of as the buffering system necessary to control pH Low alkalinity can be compared to weak shock absorbers on a car the pH will go up and down like a perpetual yoyo pH will be difficult to adjust and staining of pool surfaces may occur when total alkalinity is too low Total alkalinity should be in the range of 80 140 ppm Total alkalinity is often confused with PH which it affects To raise total alkalinity add pH buffer also called pH stabiliser or sodium bicarbonate at the rate shown in the manufacturers instructions A small amount is added daily to achieve a total alkalinity reading of 80 140 ppm If total alkalinity is too high scale will tend to form in the chlorinator cell on pool walls and in the heat exchanger of your heater To lower the total alkalinity add 400 ml hydrochloric acid each day until a total alkalinity reading taken at least 24 hours later is in the range 80 140 ppm When the total alkalinity is finally correct you may need to adjust the pH Troubleshooting Note If the chlorinator and pump are running it is normal for a cloud of small bubbles to be produced in the cell indicating chlorine is also being produced Symptom A Water looks clean but no chlorine residual reading To test for chlorine residual switch on the filtration system and adjust the Zodiac LM3
9. INDICATOR INDICATOR INDICATOR INDICATOR OUTPUT SUPER ON OFF CLOCK TIMER RESET CHLORINATE Indicator lights What they mean Chlorine Output A series of six lights indicate the chlorine output setting of the power pack More lights equals greater chlorine production Note This setting does not show the actual chlorine reading in the pool use of a test kit is required to confirm the Free Chlorine reading of the pool water Chlorine Output Yellow Light Flashing The yellow low output light flashes for a few minutes during electrode reversal electrode self clean During the reversal period there is no chlorine output Super Chlorinate Light ON This light indicates that the Super Chlorinate feature has been selected it will turn OFF when the Super Chlorinate period has ended SUPER CHLORINATE Light OFF Function not selected CHECK SALT Light ON As the salt level drops the CHECK SALT light will come on at any salt level between 3000 ppm and 4000 ppm depending on mains voltage and water temperature This is not a fault but a precaution to ensure the salt level is never too low See Salt When And How To Add It Note Operating the Zodiac LM3 at reduced salt levels may shorten the life of the electrode CHECK SALT Light OFF Indicates that the salt level in the pool is correct NO FLOW Light ON This indicates insufficient water flow in cell usually caused by the pump not running The chlorine output will also tu
10. N If the timer is not being used press the Day button until NOT USED is displayed c Press Hour button until the desired starting hour is shown d Press Minute button until the desired starting minute is shown NOTE Is an invalid time and must be changed for correct timer operation e Press Timer button to select T2 OFF f Repeat steps b to d to select the desired OFF time for T2 Repeat this sequence for timer 3 if required Press the clock button to return to the clock display Chlorine Output Setting Repeated pushing of the Output button increases the chlorine production one step at a time until maximum is reached An extra push of this adjustment at maximum resets the output to minimum Use of ON OFF control on the front panel overrides the timeswitch settings to switch the chlorinator and the connected pump ON or OFF This function is helpful for checking and altering the chlorine production settings and other maintenance tasks The normal timer settings are not altering the chlorine production settings and other maintenance tasks The normal timer settings are not changed by this process and will resume at the pre set time Super Chlorinate The Super Chlorinate function is used to rapidly add chlorine to the pool When the Super chlorinate button is pressed timer and chlorine output settings are temporarily over ridden and the chlorinator is set to run for approx 24 hours
11. aking down the chlorine to immeasurable levels Usually over a period of time the effect of the copper will diminish and the chlorine residual reading will reappear Symptom B Pool green and no chlorine reading A chlorine residual of 1 to 3 ppm is considered desirable SOLUTION Super Chlorinate or shock dosing especially in hot weather is one of the solutions This procedure raises the chlorine residual to a very high level for a short period of time and reduces chlorine demand You will also need to check your stabiliser cyanuric acid levels to ensure it is between 30 50 ppm 1 Superchlorinating with a Zodiac LM3 chlorinator i Backwash the filter ii Adjust the pH to within the range 7 2 7 8 iii Press the button marked Super Chlorinate The Zodiac LM3 automatically increases its output and runs for approx 24 hours uninterrupted The internal timer controls the Zodiac LM3 and the filter pump during this period returning to the original timer settings when the super chlorinate function is complete iv After 24 hours backwash the filter v Re adjust the pH to 7 2 7 8 vi Check the chlorine reading vii If the chlorine reading is too low repeat steps iii to vi until the chlorine reading is satisfactory Note Remove your automatic pool cleaner when super chlorinating 2 Shock dosing with chlorine or oxidising agents i Backwash the filter ii Adjust the pH to within the range 7 2 7 8 iii Add 100ml of liqu
12. alt concentration is around 4000 ppm the CHECK SALT light may switch ON if the water temperature or mains supply voltage are too low In this situation it may not be possible to set the Chlorine Output to maximum Addition of more salt to the pool will allow the Chlorine Output to reach maximum settings How much to add Use only refined salt sodium chloride when adding salt to the water of your pool For home pools of about 50 000 litres eight 25 Kg bags of salt are required to reach 4000 ppm concentration each additional 25 Kg bag of salt will increase the salt reading by about 500 ppm Larger pools require greater amounts of salt to be added Add enough salt to obtain a salt concentration of 4000 ppm Note ppm parts per million is sometimes referred to as mg l milligrams per litre How to add salt When the control panel indicates CHECK SALT empty the contents of no more than two 25 Kg bags of salt at one time into the shallow end of the pool The salt will slowly drift down to the deep end helping to disperse the salt Do not add the salt to the skimmer box Run the filter for 4 to 6 hours to help disperse the salt around the pool Note allow 24 hours for the salt to fully dissolve Observe the chlorinator control panel and confirm the CHECK SALT is not showing If the light remains on wait 24 hours and repeat the procedure with a further two bags of refined salt The CHECK SALT should now be off If not the light is still glowing
13. at increased chlorine production NOTE The chlorinator must be running for the Super chlorinate mode to be entered If the chlorinator is off press the ON OFF button to turn the chlorinator on then press the SUPER CHLORINATE button to enable SUPER CHLORINATE When in SUPER CHLORINATE mode the green SUPER CHLORINATE light will illuminate and SUPER will be displayed on the LCD screen To disable the SUPER CHLORINATE process press the SUPER CHLORINATE button a second time Normal timer operation will resume at the conclusion of the pre set SUPER CHLORINATE period See Problems you may encounter parts B amp C for details regarding when the SUPER CHLORINATE function should be used Note During SUPER CHLORINATE startup the chlorinator may actually switch the cell off for a few minutes as the cell is prepared for the following 24 hours of operation If this occurs the yellow minimum output will flash until this process is completed Backup Battery The Zodiac LM3 is fitted with a rechargeable battery If the power is removed the Zodiac LM3 will retain the timeswitch settings output power settings and Super Chlorinate settings for a maximum period of 20 days Note when power is removed from the Zodiac LM3 the clock display is not visible but the clock continues operating and will keep the correct time When power is re applied the clock display will re appear CHLORINE OUTPUT SUPER CHLORINATE CHECK SALT NO FLOW DISPLAY
14. atisfactory free chlorine reading F Regular maintenance checks Weekly e Visually check the electrodes Remove any debris that may have passed through the filter and lodged in the cell housing e Check the free chlorine e Check the pH of the water Adjust if necessary e Check the pressure gauge on the filter to see if backwashing is necessary Monthly e Check the salt concentration of the pool see Salt When And How To Add It e Check the total alkalinity Adjust if necessary e Check the chlorine stabiliser reading Adjust if necessary Salt When And How To Add It When to add salt Take a water sample to your pool shop to acertain if salt actually needs to be added The light marked CHECK SALT functions automatically when extra salt is needed Note that the CHECK SALT light may switch on at any salt level between 3000 and 4000 ppm depending upon the water temperature and mains voltage see note This is not a fault but a precaution to ensure that the salt level is never too low The salt concentration should normally be around 4000 ppm but should never be allowed to fall below 3000 ppm as this can reduce the life of the electrode Salt is not lost through evaporation Salt is lost with the water splashed out of the pool or during backwash Adding fresh water to the pool dilutes the salt concentration A top up of salt is needed from time to time just before and just after summer are the best times NOTE Even if the s
15. ble to commercial application is limited to 12 months from the date of installation For more information talk to your local pool shop or contact Zodiac Group Australia 1 23 Rowood Road Prospect NSW 2148 Australia Tel 1800 688 552 Fax 61 0 2 9896 5766 www zodiac com au Due to constant developments and improvements specifications may change without notice
16. ed setting the clock release the CLOCK button Setting the Timer for automatic operation The timer may be set for up to 3 ON OFF times each day For convenience you may select groups of days rather than setting timers for each individual day To set the ON OFF time 1 Press the timer button to step through the timer setting you wish to set for Timer 1 through Timer 3 Typical swimming pool settings are for two timers per day It is not necessary to select all 3 timers NOTE For each timer setting you must select in the following sequence 1 TIMER 1 a Press Timer button to select T1 ON b Press Day button to select All days MON SUN individual days MON TUE WED THU FRI SAT SUN or a group of days MON SUN or MON FRI or MON SAT or SAT SUN If the timer is not being used press the Day button until NOT USED is displayed c Press Hour button until the desired starting hour is shown d Press Minute button until the desired starting minute is shown NOTE Is an invalid time and must be changed for correct timer operation e Press Timer button to select T1 OFF f Repeat steps b to d to select the desired OFF time for T1 2 TIMER 2 a Press Timer button to select T2 ON b Press Day button to select All days MON SUN individual days MON TUE WED THU FRI SAT SUN or a group of days MON SUN or MON FRI or MON SAT or SAT SU
17. electrode in clean water and re fit the electrode in the cell housing 6 Replace the cell head and plug assembly 7 Reset valves and switches Turn pump and Zodiac LM3 on 8 Confirm chlorine output and settings on the powerpack Timer settings are automatically retained Terminal cover Locking ring a Damage caused by insects The outer casing of your Zodiac LM3 power pack has small vents to allow internal components to remain cool in hot weather Sometimes small insects may enter the outer casing of the power pack and this can cause damage to the internal electrical components To avoid this soray insect repellent on surfaces around the powerpack Operating Hints A Filtration and chlorination system operating periods The Zodiac LM3 has an inbuilt timeswitch to automatically switch the filtration and chlorination system ON and OFF up to six times a day Run your filtration and chlorination system 8 hours per day in the swimming season For best efficiency operate the system in the cool hours of the evening or the early morning During very hot weather it might be necessary to run the system for around 10 hours per day but in winter it is only necessary to run the filtration system for around 4 hours per day Shorter periods will help to lengthen the life of the electrode B Chlorine output settings Commence operation of the Zodiac LM3 at maximum output Add salt to the pool if the CHECK SALT light is showing For a ho
18. ic equipment the power pack life will be increased if it is mounted in a shady spot and not in direct sunlight 10 Never plug more than one pump at a time into the 3 pin socket where fitted in the base of the power supply LM3 Saltwater Chlorinator Warranty Your Zodiac LM3 Saltwater Chlorinator has been manufactured with the greatest of care and from the best available materials The warranty period begins on the date of the manufacture as according to the serial number on the product unless proof of purchase date is supplied or the warranty has been registered with US Refer also to the section titled Caution in the Owner s Manual This warranty will be void if parts other than Zodiac approved parts are used for repairs Chlorinator excluding cell electrodes Warranty The manufacturer warrants for a period of 2 years from the date of purchase in respect of defects found to be solely due to faulty materials or workmanship that it will repair or replace at its option such faulty materials or parts free of charge Electrode Warranty The cell electrodes and their special coatings are covered by a 12 months full warranty In addition to the 12 months full warranty the manufacturer warrants the product for a subsequent 48 month period pro rated over four years This pro rata warranty is offered by Zodiac to the chlorinator end user Approach your local pool shop or Zodiac Group Australia with any warranty issues The warranty applica
19. id chlorine for every 1000 litres of pool water or at the rate recommended by the manufacturer or your pool shop When shock dosing it is most important to add all the chlorine in one dose If in doubt or if the problem is severe use more rather than less all in one dose iv After shock dosing re adjust the pH to within the range of 7 2 7 8 and check the chlorine level before using the pool Up to 5ppm is not harmful Note Remove your automatic pool cleaner when adding chemicals High Phosphate Water Content Pools with high phosphate levels will feed algae and go green especially in rural or open areas around lawns or when numbers of trees attract bird life The main food for algae is phosphate and a high level in the water can prevent even high levels of chlorine from killing the algae Ask your pool retailer to test for phosphate and use phosphate remover to remedy the problem Symptom C Chlorine odour CAUSE Not enough free chlorine Surprisingly the problem here is not too much chlorine as many imagine Chloramines form by the bonding of chlorine with amines from sweat urine and other sources These chloramines make the chlorine odour and can also cause eye and skin irritation Free chlorine does not smell up to 10 ppm concentration SOLUTION See solution for symptom B Symptom D Slimy walls of pool or spa CAUSE Combined algae and bacteria growth SOLUTION Scrub down the affected walls and follow remedy as for Problem
20. in the top of the cell CAUSE 2 Sensor disconnected SOLUTION Make sure that the sensor lead from the power pack to the electrode is firmly plugged into the electrode terminals Symptom Chlorinator stops working all lights OFF CAUSE 1 Unit turned off SOLUTION Check power plug is properly connected Push ON OFF button and check ON OFF indicator on time switch CAUSE 2 Mains power off or blown fuse SOLUTION Check mains power source check fuse Replacing the Fuse Switch off and disconnect the Zodiac LM3 from the mains power An on board mains fuse is located in the bottom rear of the Zodiac LM3 next to the power cord Check and if necessary replace with a 2 Amp 5x20mm slow blow fuse Reconnect the Zodiac LM3 to mains power and switch on If the fuse continues to blow this indicates a serious fault switch off the power disconnect the Zodiac LM3 and contact Zodiac Group Australia or a Zodiac service centre for further advice Mains power supply Your Zodiac LM3 must be connected to a properly earthed grounded electrical power socket or power source Warning If the supply cord is damaged it must be replaced by the manufacturer or its service agent or similarly qualified person in order to avoid a hazard Contact Zodiac Customer Service Support Centre 1800 688 552 or visit www zodiac com au Backup Battery The Zodiac LM3 is fitted with a rechargeable battery If the power is removed the Zodiac LM3 will retain the
21. lk to your local pool shop or telephone Zodiac Group Australia 1800 688 552 Due to constant developments and improvements specifications may change without notice IMPORTANT SAFETY INSTRUCTIONS When installing and using this electrical equipment basic safety precautions should always be followed including the following 1 Read and follow all instructions 2 WARNING To reduce the risk of injury do not permit children to use this product unless they are closely supervised at all times 3 Do not bury cord Locate cord to minimize abuse from lawn mowers hedge trimmers and other equipment 4 WARNING To reduce the risk of electrical shock replace damaged cord immediately 5 Save these instructions How your Zodiac Saltwater Chlorinator Works Common salt sodium chloride is made up of two elements sodium and chlorine When your Zodiac LM3 Saltwater Chlorinator is installed the installer will dissolve a measured quantity of salt in the pool water to make it slightly salty As part of the daily filtration cycle the pool water is passed through the Zodiac electrolytic cell to produce chlorine which is dissolved instantly into the water Your Zodiac LM3 also produces a small amount of ozone in the cell as a by product In simple non technical terms the chlorine instantly starts to destroy bacteria viruses and algae and in doing this reverts to dissolved salt This cycle continues with more new chlorine being produced from the salt
22. me pool of about 50 000 litres the addition of one 25 Kg bag of salt will increase the salt concentration by 500 ppm see Salt When And How To Add It C Free residual chlorine reading The free chlorine residual in the pool should be around 1 3 ppm Increasing the daily operating period of the system increases the free chlorine reading and a shorter operating period reduces the chlorine reading Likewise operating the chlorinator at maximum output will produce a higher chlorine reading than operating the chlorinator at a lower setting of say 50 Where the salt water chlorinator is used in conjunction with Nature2 the free chlorine level will be maintained at around 1ppm and reduce the need to use the Super Chlorinate feature This will significantly extend the life of your chlorinator electrode D Chlorine stabiliser Cyanuric acid level Make sure that the water has a satisfactory chlorine stabiliser Cyanuric acid reading which is within the band of 30 50 ppm You will need to take a sample to your pool shop to measure this Chlorine stabiliser helps to keep a satisfactory free chlorine reading in hot climates E pH readings It is ABSOLUTELY ESSENTIAL that the pH of the pool be maintained in the range of 7 2 7 8 The effectiveness of chlorine as a sanitiser is significantly reduced as the pH rises At a PH of 8 0 nearly all of the chlorine being added to the pool is wasted and it will be almost impossible to maintain a s
23. rn off at this time All Lights OFF All lights OFF indicates the Zodiac LM3 is turned off Check if the display indicates ON or OFF or the mains power is disconnected Check the mains power circuit breaker Chlorinator Maintenance How to clean or inspect your electrode In some pool environments there is a high level of calcium referred to as calcium hardness in the water In these situations your LM3 electrode will benefit from manual cleaning on occasion and remove excess build up of calcium To clean your electrode 1 Switch off the filter oump and chlorinator close necessary valves 2 Unplug the cell terminal cap 3 Unscrew the electrode retaining ring and remove the electrode If you can see any calcium buildup on the electrode immerse the electrode in cell cleaning solution ensuring that the terminals are not immersed Note The use of eye protection is recommended when working with pool chemicals 4 You can purchase electrode cleaning solution from a pool shop or mix your own in a suitable plastic vessel by adding one 1 part of Hydrochloric Muriatic acid to ten 10 parts water ALWAYS ADD ACID TO THE WATER Allow the cleaning solution to dissolve the calcium deposits for about 10 minutes When the electrodes are clean dispose of the cleaning solution into the sewerage system not into storm water drains Note Using acid stronger than 1 part in 10 parts water will damage the electrode and shorten its life 5 Rinse the
24. this button will reset the output to minimum On Off Button This button over rides any automatic internal time switch setting and switches the Zodiac LM3 and filtration system ON and OFF The function is helpful for checking and or altering the chlorine output settings and other maintenance tasks Operation of the ON OFF button will not change the timeswitch settings In fact the Zodiac LM3 is so smart it will switch itself back to previously set operation settings automatically Super Chlorinate Button The Super Chlorinate function is used to rapidly add chlorine to the pool A detailed explanation of the Super Chlorinate function is given in the Automatic Operation section of this manual Automatic Operation Timeswitch where fitted Zodiac LM3 TS model only When the chlorinator is disconnected from mains power the timeswitch display will be blank Once power is turned on the display will turn on after first displaying the software revision of the chlorinator All the timeswitch and clock settings can be cancelled by using the Reset button Please Note High ambient temperatures may cause the clock display to darken this will return to normal when the temperature drops Setting the Clock 1 Push and HOLD the CLOCK button 2 Press the MIN button to set the minutes 3 Press the HOUR button to set the hours Note the hours are displayed in 24 hour format 4 Press the DAY button to set the day 5 When you have finish
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