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SECTION 4: BACKWASHING INSTRUCTIONS 

Periodic backwashing of the Aqua-Pure

®

 MCA Series Iron Reduction System bed is required to fl ush out the entrapped iron that has accumulated. This 

procedure is performed automatically at 1:00 a.m. for a period of approximately 10 minutes, and will not interfere with a standard softener regeneration 
cycle which is usually set for 2:00 a.m.

To Set Backwash Frequency:

To determine and set backwash frequency, follow these instructions:

1)   Select backwashing frequency schedule corresponding to your model.

2)   Locate box intersected by number of persons in your family and iron concentration of water (if iron concentration is between two numbers in sched-

ule, use higher number.)

3)   Number in box represents number of times, in 12 days, timer should be set to regenerate. Refer to “How To Set Time Control” (page 4-3) to set timer.

 

Example: You have a 1 cubic foot Iron Reduction System, 4 in family and 8 ppm iron. Refer to schedule and locate box intersected by 4 in family and 
8 ppm iron. The fi gure “1” in box indicates a backwash frequency of one time per 12 days (if a “2,” “3,” or “4” were in box, frequencies of twice, 
three times and four times per twelve days respectively would be indicated.)

 

NOTE: The backwashing frequency schedules are based on average water consumption rates and are merely guides. They are NOT intended to be 
used if water used by outside spigots, a swimming pool, geothermal heat pump, or other high water usage devices or activities are to be treated by 
your MCA Series Iron Reduction System. If your application includes any of these, and you have already determined your MCA Series Iron Reduction 
System is capable of handling the fl ow rates involved, refer to the next paragraph for instructions on setting backwash frequency.

If your water contains a high iron concentration, manganese, tannins or hydrogen sulfi de it may be advisable to increase the backwash frequency up to 
daily, if necessary. It should be noted, however, that increasing the frequency or duration of backwashing WILL NOT overcome an insuffi cient pumping 
rate.

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Summary of Contents for MCA SERIES

Page 1: ... OPERATING INSTRUCTIONS MCA SERIES RESIDENTIAL IRON REDUCTION SYSTEMS MODELS MCA1001 MCA1001M MCA1501 MCA1501M MCA2001 MCA2001M INSTR2804 0312 Installer please leave with homeowner Homeowner retain for future reference ...

Page 2: ... and pouring gravel and filter media To request an MSDS relating to this product call 203 238 8965 or go to www 3M com select country and use the search engine to search MSDS For emergen cies call 800 364 3577 or 651 737 6501 24 hours CAUTION To reduce the risk associated with property damage due to water leakage Read and follow Use instructions before installation and use of this water treatment ...

Page 3: ...the Hydro Charged water to precipitate throughout the media bed rather than on the surface as in chemical oxidizing filters This process produces an iron reduction capacity of 30 000 to 50 000 parts per million ppm com pared to 6 000 to 8 000 ppm for chemical oxidation processes The media DOES NOT require a chemical regenerant such as potassium permangante for oxygen enrichment salt chlorine or an...

Page 4: ...t install a pressure limiting valve Contact a plumb ing professional if you are uncertain how to check your water pressure NOTE Call your local water department or plant operator to obtain pressure readings If you have a private well the gauge on the pressure tank will indicate the high and low system pressure Record your water pressure data below Water Pressure Low psi High psi CAUTION To reduce ...

Page 5: ...ion if required may be taken Installation Site Selection Select the location of your iron reduction system with care Various conditions which contribute to proper location are as follows 1 Locate as close as possible to water supply source 2 Locate as close as possible to a drain 3 Locate in correct relationship to other water conditioning equipment Figure 1 page 3 1 4 Locate the iron reduction sy...

Page 6: ...es Iron Reduction System Facts to Remember While Planning The Installation 1 All installation procedures MUST conform to local and state plumbing codes 2 If lawn sprinklers a swimming pool or geothermal heating cooling or water for other devices activities are to be treated by the iron reduction system a larger model MUST be selected to accommodate the higher flow rate plus the backwashing require...

Page 7: ... control valve brand used WATER SOFTENER IRON REDUCTION SYSTEM SOFT WATER TANK SWITCH PRESSURE PRESSURE WATER RAW METER WATER FOR LAWN SPRINKLERS OR OTHER HIGH DEMAND HIGH DEMAND OR OTHER LAWN SPRINKLERS WATER FOR PRESSURE SWITCH WELL WATER RAW PRIMARY PRESSURE SWITCH SECONDARY SECONDARY TANK CHECK VALVE PRESSURE OUTPUT SOLENOID VALVE TO 110 V PRIMARY TANK PRESSURE PRESSURE SWITCH TANK PRESSURE OU...

Page 8: ...t of the Hydro Charger Check for leaks and adjust as necessary IMPORTANT NOTES IMPORTANT NOTES Do not apply heat near Hydro Charger as damage may occur On badly scaled older plumbing systems it may be advantageous to install a WYE Strainer to help prevent plugging of the Hydro Charger nozzle with scale or debris The use of a WYE Strainer must precede the Hydro charger on the inlet side by a minimu...

Page 9: ...he search engine to search MSDS For emergen cies call 800 364 3577 or 651 737 6501 24 hours Step 6 Turn off the electrical source to the water well pump or the close the water shut off valve on a municipal water supply to the dwelling once again Depressurize the water system by opening the nearest faucet to drain water from the water system in order to allow the installation of the MCA Series Iron...

Page 10: ...ion slowly open the inlet side of the bypass valve to allow water to flow into the filter vessel Water should start to flow into the drain Allow for any air that might have been trapped to leave the filter and go to drain This will be detected by changes in noise in the drain line or is visible in the semi transparent tubing Once the air is entirely gone slowly increase the water flow to drain by ...

Page 11: ... on split stream installations 3 On both types installation install hyrdo charger between pressure tank secondary pressure tank on split stream type installation and normally closed solenoid valve 4 Install pressure switch after hydro charger and wire it to solenoid valve secondary pressure switch on split stream Set high pressure on pressure switch which controls opening and closing of solenoid v...

Page 12: ...ater utilizing a hose or clean bucket Dispose of spent media in accordance with federal state and local regulations 5 Prior to reattaching valve head assembly to the tank inspect the o ring for wear If none lubricate with silicone grease or water Reattach valve head assembly by rotating to the right or clockwise until valve head assembly is seated to the tank hand tight 6 Reattach the bypass valve...

Page 13: ...Refer to schedule and locate box intersected by 4 in family and 8 ppm iron The figure 1 in box indicates a backwash frequency of one time per 12 days if a 2 3 or 4 were in box frequencies of twice three times and four times per twelve days respectively would be indicated NOTE The backwashing frequency schedules are based on average water consumption rates and are merely guides They are NOT intende...

Page 14: ... 2 2 3 1 1 1 1 2 2 2 3 3 3 4 1 2 1 2 2 2 3 3 4 4 5 1 2 1 2 2 3 3 4 4 6 6 1 2 2 2 3 3 3 4 6 6 7 2 2 3 3 3 4 6 6 6 12 8 2 3 3 3 4 6 6 6 12 12 MODELS MCA2001 MCA2001M Persons in Family IRON CONTENT PPM 5 10 12 14 16 18 20 22 24 26 28 30 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 2 2 2 2 2 3 1 1 1 2 2 2 2 2 2 2 3 3 4 1 1 2 2 2 2 2 3 3 3 3 3 5 1 2 2 2 2 3 3 3 3 4 4 4 6 1 2 2 3 3 3 3 4 4 4 6 6 7 1 2 3 3 ...

Page 15: ...wn after rinse water stops flowing to drain HOW TO ADJUST BACKWASH TIME 1 Disconnect the power source 2 Locate the three screws behind the manual backwash knob by pushing the red button in and rotating the 24 hour dial until each screw appears in the cut out portion of the manual backwash knob 3 Loosen each screw slightly to release the pressure on the time plate from the 24 hour gear 4 Locate the...

Page 16: ...time that your filter will rapid rinse 2 min per pin To change the length of rapid rinse add or remove pins at the higher numbered end of this cycle as required See note below The number of pins times two equals the rapid rinse time in minutes The backwash cycle is complete when the outer micro switch drops off the last pin in the rapid rinse group of pins The program wheel however will continue t...

Page 17: ... from bypass valve Remove control valve from media tank by grasping the control valve and turn counter clockwise 5 Using a yard stick measure media level Remember media should be down 16 17 inches from the top of the media tank 6 If media is down 2 3 inches siphon water from tank and add ph Plus to return the level to the proper depth When the media level is below 20 inches from the tank top reple...

Page 18: ...rloaded with precipitated iron due to insufficient backwash or failure to backwash due to problem with control timer or unplugged control valve power cord 2 Upon correction of problem increase backwash fre quency if problem determined to be insufficient frequen cy manually backwash until backwash water starts to clear in more severe iron fouling cases media bed may need chemical cleaning contact d...

Page 19: ...6 40 6 75 190 5 Approximate Shipping Weight lbs kg 157 71 2 210 95 2 264 119 7 Maximum operating temperature 100º F 38º C Electrical requirements 110V 60Hz Operating pressure 20 100 psi Specifications are subject to change without notice NOTES 1 Replenishment of pH adjusting component of media may be required periodically the frequency of which is dependent on raw water pH manganese concentration ...

Page 20: ...se Models M MC 050P 2 MC 050MP 2 MC 050P 3 MC 050MP 3 MC 050P 4 MC 050MP 4 7 Gravel Underbed QC 15P QC 15P QC 18P 8 Hydro Charger Complete HC10 HC10 HC10 9 Air Check Cap HC10 2 HC10 2 HC10 2 10 Air Check HC10 10 HC10 10 HC10 10 11 O ring Bypass Screw HC10 4 HC10 4 HC10 4 12 Bypass Screw HC10 5 HC10 5 HC10 5 13 Screw Retainer HC10 6 HC10 6 HC10 6 14 Nipple 1 NPT Qty 2 Includes Items 16 18 PKNPL100 ...

Page 21: ...7 3 CEC1000 SERIES BACKWASH CONTROL ...

Page 22: ...ms 66 N N 60160 00 Drive Cam Assy White O 10025X FAS Switch Assy Optional Incl Ref Items 66 68 P 19367 Cover Mounting Screw 2 18660 O Ring 3 18661 O Ring ORG 218 13 18706 02 3 4 NPT Adapter Yoke 18706 1 NPT Adapter Yoke 14 13709 Adapter Coupling 15 13305 Coupling O Ring 16 13255 Adapter Clip 17 13314 Screw Adapter Coupling 18 15058 Control Valve Body CEC1000 19 12112 Hex Head Machine Screw 20 1189...

Page 23: ... SET SWITCH WHITE BLUE RAPID RINSE BRINE TANK FILL BACKWASH PROGRAM SWITCH BRINE AND RINSE BROWN BLACK BLACK BLACK YELLOW BLACK B L A C K B L A C K SWITCH SERVICE CAM SERVICE CAM RAPID RINSE BRINE RINSE BROWN YELLOW RED BLUE RED BLACK WHITE GREEN BACKWASH DRIVE CAM SERVICE DRIVE CAM SWITCH PLUG 120 V A C 60 CYCLE 7 5 ...

Page 24: ...ification Inc s exclusive obligation Warranty Period One 1 year on the entire product unit Five 5 years on the media tank only does not include internal component parts Five 5 years on the control valve Five 5 years on salt storage container and components Limitation of Liability 3M Purification Inc will not be liable for any loss or damage arising from this 3M Purification Inc product whether dir...

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