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Related Manuals for Pool Controls Chemigem CM55
Summary of Contents for Pool Controls Chemigem CM55
- Page 1 Commercial & Semi-commercial Water Management System User Manual...
- Page 2 Systems Alarms Maintenance & Troubleshooting IMPORTANT If the power cord is damaged the unit must be returned to Pool Controls for repair. Always read the instructions and warnings on chemical containers before using chemicals. Serial Number........Date of Installation........ Installed by..........
- Page 3 THREE months. WARRANTY OBLIGATIONS OF POOL CONTROLS If a defect in workmanship or materials in any Pool Controls product covered by this warranty is discovered during the term of the warranty, and provided the warranty holder follows the procedure set out below, Pool Controls will, at its option repair or replace that item.
- Page 4 Pool Controls product was not carried out by a suitably qualified technician. To the extent permitted by law, Pool Controls is not liable for: any incidental or consequential loss incurred in connection with the removal or replacement of the Pool Controls product under this warranty;...
- Page 5 It is important that the Chemigem CM55 is installed and operated in accordance with the instructions provided in this manual. IMPORTANT If the power cord is damaged the unit must be returned to Pool Controls for repair. Always read the instructions and warnings on chemical containers before using chemicals.
- Page 6 10. Always take water samples from a point near the skimmer box, for this is where the water is completely mixed, giving the most accurate readings. Never take water samples near the pool returns (“eye-balls”) where the Chemigem may have freshly dosed the pool water. 11.
- Page 7 Prior to Installation and Operation Initial pool balance Before you begin using the Chemigem CM55 make sure your pool water is balanced as follows: Chlorine - general If it is a new installation, add enough chlorine (liquid or granular) to achieve a reading of 3ppm on an appropriate test kit.
- Page 8 25-27. Pool Water Circulation To enable the Chemigem CM55 to work efficiently, the mixing of the pool water has to be as quick and complete as possible. Positioning the return nozzles (eyeballs) to the pool so that the main water-body rotates is the best way to achieve this.
- Page 9 To connect the delivery system to the chemical drums and the injection point. Do not use any tubing other than that supplied. To do so may result in damage to the Chemigem CM55 and negate the Warranty. Filters & Sinkers Drum Filters are connected to the plastic tubing.
- Page 10 Installing the Power Supply Position the Chemigem CM55 within 2.5 metres of the Probe at a convenient height for easy operation, preferably at eye level. If it is impractical to install the unit at eye level because of site restrictions, install it at any height that provides ease of access and operation in a normal upright position (with the printing reading horizontally and protruding cords facing toward the ground).
- Page 11 Page 9...
- Page 12 If the pipe size is 50mm or less, it may be preferable to use an injection manifold – please discuss with Pool Controls the best installation method for your application. There are two separate installations for the “Drill and Tap” method: one for fitting the Probe and one for fitting the Injection Elbow.
- Page 13 Installing the Probe • Remove the Probe protective cap before fitting the Probe • The protective cap should be retained for possible future use. • Fully insert the Probe (with “O” ring fitted) into the reducing nipple. • To avoid contaminating the sensing part of the Probe, do not use grease or sealant on this connection.
- Page 14 Injection Elbow Installation Air Leaks Before commencing the installation of the Injection elbow, check for air leaks in the suction line by switching on the pool pump and checking the ‘strainer’. If there are a lot of air bubbles swirling around which do not clear within 2 to 3 minutes, it is likely the system has an air leak in the suction line between the pool and the pool pump.
- Page 15 See diagram on page 9. Fix the peristaltic dosing pump unit to the wall close to the Chemigem CM55 Power Supply The Injection Elbow is supplied with a gas loop (see illustration on next page). The outlet of each dosing pump is to be connected to each arm of the gas loop.
- Page 16 Refer to the cutaway diagram of chemical drum on page 16: Position the Chlorine and Acid drums in a safe and secure location about 2 metres from the Chemigem CM55 Drill a hole in each of the screw-on drum caps (slightly larger than the diameter of the tubing) Pass each length of supplied tubing through the hole in the appropriate drum cap Place the supplied sinkers onto the tubing and attach the appropriate drum filter.
- Page 17 SPECIAL CONSIDERATIONS FOR VALVE MODELS A typical installation of a solenoid valve model Chemigem CM55 is illustrated on the next page. It is imperative to fit the Injection Elbow to the inlet (suction) side of the pool pump for Solenoid Valve installations. The required minimum negative pressure/suction is negative 20 kPa.
- Page 18 Page 16...
- Page 19 FITTING SOLENOID VALVE MODEL CHEMIGEM CM55 BELOW POOL WATER SURFACE LEVEL Note: inlet and outlet isolation valves required for these types of installations. Page 17...
- Page 20 OPERATION OF THE CHEMIGEM CM55 What is ORP? For over 30 years operators in many parts of the world have used Oxidation-Reduction- Potential (ORP or Redox) values as a measure of Chlorine activity in water. ORP is a measure of the oxidising properties of the Chlorine in the water and is easily monitored by the Chemigem probe (also called a multi-electrode).
- Page 21 READING THE DISPLAY PANEL What do the Chlorine and pH Numbers Represent? · The Chlorine (ORP) number is the activity of the chlorine (see explanation of ORP (Below) and measures in millivolts. (Refer to pages 19 and 30 to 32) ·...
- Page 22 KEYPAD 1: “PUMP” When the power has been switched on the screen will light up, however the pool pump will not operate unless the time is within a PUMP-ON period. This keypad controls the operation of the pool pump and the controlling function of the unit. It has three positions and scrolls through them with each press on the keypad.
- Page 23 KEYPADS 2 and 3: “AUXILIARY” To set ON and OFF times for Auxiliary equipment repeat the steps described for PUMP control and timer settings, selecting AUX Examples of Auxiliaries are chemical dosing pumps. KEYPAD 4: “ESCAPE” AND “ALARM MUTE” The keypad has two functions: - •...
- Page 24 KEYPADS 9 and 0: “INCREASE AND DECREASE CHLORINE SET LEVELS” Keypads 9 and 0 are used to set the level of Chlorine required in the pool water. The keypads raise or lower the required level and the Chemigem will then acquire and hold the set level.
- Page 25 Use arrow across to pH Press ENTER – use arrow to go to DECREASE or INCREASE Press ENTER to change calibration RE-CALIBRATING CHLORINE Recalibrating Chlorine(ORP)is not needed and it should not be done without the prior advice of Pool Controls. Page 23...
- Page 26 TO CHANGE THE CLOCK TIME Press ENTER Select SETUP using keypad “pH” - Press ENTER Enter the pin number if ENABLED Select CLOCK using keypad “pH” - Press ENTER Select TIME - Press ENTER Select MINUTES using keypad “pH” Press ENTER to increase the minutes Select HOURS using keypad “pH”...
- Page 27 SETTING THE INBUILT POOL PUMP TIMER The unit’s built-in pump timer is factory set to two ON TIMES each day. If the built-in pump timer is not to be used (because an external pump timer is used), the built-in pump timer must be permanently turned off.
- Page 28 AUTOMATIC PUMP TIMER SETTINGS: Daily Every day Monday only Tuesday only Wednesday only Thursday only Friday only Saturday only MO - SA Monday to Saturday inclusive MO – FR Monday to Friday inclusive MO – TH Monday to Thursday inclusive FR –...
- Page 29 If the required HOURS figure is bypassed, keep pressing the keypad until the desired time is reflected After the desired HOURS are chosen, select MINUTES using keypads “ORP” or “pH” Press ENTER to select the desired MINUTES. When the correct time is set select OK using keypads “ORP” or “pH” - Press ENTER Press ESCAPE 4 times to get back to the main menu Changing Period Settings –...
- Page 30 Chemical Feeding The first time that the unit operates it will take approximately 120 minutes to fully adjust to the required levels of Chlorine and pH. Thereafter it will normally restore the required levels in approximately 30 minutes. Ensure that the pool pump is running for a sufficient period to carry out these adjustments.
- Page 31 IMPORTANT: pH will NOT remain stable when Total Alkalinity is below minimum. An unstable pH will lead to chemical dumping in the pool. Maintain TA within range by adding Buffer Using CO gas injection for pH Control When liquid chlorine is dosed into a pool the rapid pH increase at the injection point causes calcium scale to form over the injection point and can block it.
- Page 32 Acid, giving off heat and boiling the water that may splash Acid. Chlorine The Chemigem CM55 uses a sodium hypochlorite solution to dose chlorine. Diluting Chlorine is strongly recommended as follows: Pools larger than 90kl ......... 20 litre drum or larger full strength 20kl - 90kl ...........
- Page 33 ALARMS Note: the safety warning sounds and alarm signals will not operate for the first 4 minutes of operation. Normal Range Indicator When the pool pump is running the Chemigem shows a green light if the pool chemical levels are within the normal range. To ensure the unit is maintaining the pool water at the required levels, check the pool water on a regular basis with a good quality test kit.
- Page 34 Low Chlorine Alarm This indicates that the Chlorine level in the pool water is considerably lower than the level that was set. The Chemigem will restore the level by feeding Chlorine approximately every 3 minutes until the set level is reached again (however feeding may be inhibited by one of the factors listed below).
- Page 35 Low pH Alarm (Excess Acid) This indicates that the pH level in the water is considerably lower than that which was set. The Chemigem cannot do anything about this condition except warn about it. However, as a safeguard, the unit operates a lock on any more additions of Acid (that would only make matters worse) until the pH is brought back into the normal range with the addition of some Sodium Carbonate or Sodium Bicarbonate- “Buffer”.
- Page 36 Maintenance Like all equipment the CM55will look better and last longer if it is maintained and operated in accordance with these instructions. Replace Squeeze Tubes Regularly The squeeze tubes in peristaltic pumps should be checked regularly and replaced every 6 months.