Related Manuals for Rainbow Pool Products CHEMIGEM DM52CHL
Summary of Contents for Rainbow Pool Products CHEMIGEM DM52CHL
- Page 1 CHEMIGEM DM52CHL Code Description 1 Year Warranty 00052004 Controller for Chlorine only with Chlorine supply controlled by a suction solenoid valve.
- Page 2 THE TRUSTED NAME IN POOL MANAGEMENT Pool water must be sanitised to remain safe. Chlorine is used for this purpose, but for it to be effective the pH and other factors must be optimally set. For decades these chemicals have been dosed by hand (and some pool owners still do) with the result being unmatched chlorine and pH levels.
- Page 3 GENERAL DATA: DIMENSIONS, ELECTRICAL, APPROVAL Chemigem Primary Use Sensing Injection / Clock / Timer Model Control Method DM52 General / Dual Probe Vacuum Valves Yes - Switched Domestic Pools Pump Outlet (pH +ORP) DM52VP General / Dual Probe Acid Valve + Yes - Switched Domestic Switched SWC...
- Page 4 WARNING To ensure the desired chemical levels are being maintained, check the pool water with a good quality test kit. This should be performed daily for the first two weeks and on a regular basis thereafter. WARNING 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.
- Page 5 Chemigem Installation and Operation The unit is one of the most advanced pool chemistry controllers of its kind. It is important that it is installed and operated in accordance with the instructions provided in this manual. The Chemigem is designed to automatically assist in keeping the levels of Chlorine and pH correctly balanced in swimming pools and spas.
- Page 6 Key features: • A computerised on-screen HELP menu • An automatic pool pump timer • An easy-to-read screen showing chemical settings and actual chemical readings • Indicator light and audible alarm that monitor whether pool water chemical levels are within the required range Multi-Electrode (probe) The one Multi-Electrode (probe) is fitted into the side arm of the tapping band that is then...
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Page 7: Tools Required
Wall Anchors and Screws There are two wall anchors and screws for the affixing of the unit to a solid surface. Wall anchors and screws are also supplied to affix the solenoid valves to a solid surface surface. TOOLS REQUIRED The following is a list of tools required together with the purpose for each tool: 19mm Hole Saw To drill a hole in the PVC pipe for the fitting of the tapping band. -
Page 8: Installation
INSTALLATION LOCATION For ease of installation and for safety, the Chemigem must be installed as follows: • In a normal upright position (with the printing on the front reading horizontally) and protruding cords facing toward the ground. • Attached to a solid vertical surface to provide easy access to the power supply and should preferably be fixed at eye level. - Page 9 It is imperative to fit the tapping band to the inlet (suction) side of the pool pump unless using a venturi system. The required range of pressure/suction is negative 20 kPa to negative 70 kPa. After selecting the position for the tapping band on the pool pump inlet pipe, ensure that it is as near as possible to the pool pump.
- Page 10 SOLENOID VALVE INSTALLATION • The valves must be fitted as near as possible to the tapping band • The valves must be screwed to a vertical surface above the top of the chemical drums and no more than 750mm from the ground so that the pool pump may easily raise the chemicals from the drums.
- Page 11 FITTING CHEMIGEM BELOW POOL WATER SURFACE LEVEL The following instructions assume the installer has some knowledge of the operation of the pool and the parts described. If the installer is not experienced in pool operation and maintenance, contact the supplier of the Chemigem or a qualified pool maintenance technician with any questions before attempting to carry out the steps described in this section.
- Page 13 DRILLING TAPPING BAND HOLES TAPPING BAND AND MULTI-ELECTRODE (PROBE)
- Page 14 FITTING CHEMIGEM BELOW POOL WATER SURFACE LEVEL FITTING...
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Page 16: Operation
OPERATION INTRODUCTION The Chemigem is designed for use with all types of pools and to measure and automatically adjust the Chlorine and pH levels in the pool water. Once levels are finally set or adjusted, the unit should be left alone. The unit has been factory-set to achieve 650 millivolts Chlorine (ORP) and 7.7pH . - Page 17 Left Hand Side of Display Screen The numbers on the left hand side of the display screen are the values the multi-electrode (probe) is registering for the actual levels of Chlorine and pH within the pool water. The Chemigem will work to achieve the same values as those “SET” on the right-hand end of the display.
- Page 18 It is suggested that swimming pool water should be maintained within the following ranges and that these ranges are confirmed with your local authorities as meeting their standards: • CHLORINE 1.0 to 3.0 ppm or 3.0 mg/l • 7.2 to 7.8 •...
- Page 19 It is not uncommon for new plaster/marblesheen pools to use more acid during their first month or two but do not let the pH and Total Alkalinity remain below recommended levels, or the lifetime of the pool surface may be shortened. Depending upon how the unit has been programmed, the standard procedure is that the first time that the unit operates it will take approximately 120 minutes to fully adjust to the required levels of Chlorine and pH.
- Page 20 KEYPADS KEYPAD No. 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 21 KEYPAD No. 3: “HELP” When the Chemigem is indicating that the chemical levels in the pool water are incorrect, helpful advice is obtained by pressing this keypad. Suggestions and guides are given. Reference to the relevant pages in this manual provide a more in-depth treatment of the problems.
- Page 22 KEYPADS No. 7 and 8: “AUTOMATICALLY INCREASE AND DECREASE POOL ACID SET LEVELS” Keypads No. 7 and 8 are used to set the level of pH required in the pool water. The keypads raise or lower the required level and the unit will then acquire and hold the set level. If the pH level required is lowered using keypad 7 the unit will achieve the new level quickly by adding some pool Acid.
- Page 23 To Turn On the Chlorine Press and hold down keypads No. 9 and 0 at the same time for 3 seconds, after which time the unit will beep and resume displaying the set and actual values for the Chlorine (ORP) of the pool.
- Page 24 POOL PUMP TIMER 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.
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Page 25: To Set The Clock
SETTING “AUTOMATIC” POOL PUMP TIMES Utilising the automatic pool pump timer provides an assured method of achieving a regular circulation of pool water through the pool filter. Further, as the Chemigem operates when the pool pump is running, the pool water will automatically remain balanced. Factory set times vary depending on State. - Page 26 ALARMS INDICATOR LIGHT AND SOUND The safety warning sounds and alarm signals will not operate for the first 5 minutes. THE NORMAL RANGE When the pool pump is running the Chemigem shows a green light if the pool chemical levels are within the normal range.
- Page 27 THE AUDIBLE ALARM The alarm sound can be turned down in volume or completely off if required. It may be temporarily muted by pressing keypad No. 2, leaving the red warning light flashing and the screen message to indicate the warning state. However, the next time the pump turns on it will restore the warning sound unless the pool chemistry has been brought back into the normal range.
- Page 28 CHEMICALS CHEMICAL FEEDING Depending upon how the unit has been programmed, the standard procedure is that 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.
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Page 29: Important Points To Note
IMPORTANT POINTS TO NOTE • Adding chemicals will take only a few minutes but removing the chemicals depends upon the natural dissipation from the pool water, which could take weeks • Add pool chemicals slowly and with appropriate care, allowing sufficient time for complete dissolving and mixing throughout the pool water and then carry out water tests to determine whether the correct amounts have been added •... - Page 30 Chlorine The Chemigem is designed to automatically help keep the correct level of Chlorine (and pH) in pool water by continuously monitoring the water chemistry while the pool pump is operating. Chlorine (and pool Acid) is dosed into the pool water as and when necessary. The Chlorine in common use is a sodium hypochlorite solution.
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Page 31: Problem Solving
PROBLEM SOLVING 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 32 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.