Aqua-Pure MCA2001M - Manual (Page 11)

SPECIAL INSTRUCTIONS FOR SPLIT-STREAM AND
PUBLIC WATER SUPPLY TYPE INSTALLATIONS:
For split-stream type installations, a secondary pressure tank must be installed as in Figure 1. On public water supply type installations, a pressure tank
must be installed as in Figure 1.
The pressure tank should be of same capacity as would normally be installed if water system were a standard private well type. Also note both applica-
tions require a normally-closed solenoid valve. Follow standard installation procedures above with following additions and modifi cations.
1) Install pressure tank (See Figure 1) or secondary pressure tank (See Figure 1) as indicated by appropriate diagram.
2) Install normally-closed solenoid valve, 110/120V, 60Hz after water meter on public water supply installations or after a line split for untreated water
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 valve) 2 to 3 psi lower than low pressure on primary pressure switch. EXAMPLE: if primary
pressure switch is set at 40/60 psi, set secondary pressure switch 20/38 psi.
For public water supply type installations, contact your local water department or plant operator and ask what the normal low system pressure is. Set
high pressure on pressure switch 2 to 3 psi lower than this fi gure.
IMPORTANT NOTE IMPORTANT NOTE
Failure to set pressure switch as described above will not allow proper closing of solenoid valve during periods of low system pressure. Improper
function of solenoid valve will cause total failure of system.
Replenishing Media:
CAUTION
To reduce the risk associated skin, eye, and respiratory tract irritation from gravel and fi lter media during installation:
• Gravel and several types of fi lter media may be used in this product, depending upon the application. During installation, dust may cause irritation to skin,
eyes, and respiratory tract.
• Utilize a NIOSH-approved dust fi lter mask, protective gloves, and appropriate eye protection when handling and pouring gravel and fi lter 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
emergencies, call 800-364-3577 or 651-737-6501 (24 hours).
1) Pressure must be relieved on water treatment system by turning the bypass valve to the bypass position. Then initiate an immediate manual back-
wash cycle as described on Page 4-3.
2) Disconnect the power cord from the electrical outlet.
3) Remove the drain line from the control valve. Remove the control valve by rotating the valve head assembly to the left or counter-clockwise and set
aside to reassemble after media is loaded into the tank.
4) Insert fl exible tubing down the distributor tube and siphon the water from the media tank to aid in adding or replacing fi lter media. Remove fl exible
tubing. Cover the distributor tube with centering tool to prevent media from entering the distributor tube. Add the media you are using to the line on
the side of the media tank. Remove centering tool. Then refi ll the media tank with water 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 to the control valve and slowly open the bypass. Allow the iron reduction system pressurize and set for the required time
period.
7) Plug the control valve into the electrical outlet and set the time of day on the display.
8) Once the saturation time has been achieved, manually initiate an immediate backwash (see Page 4-3). Backwash the media until the water runs
clear. Observe the color of the water in the drain line discharge to determine if is has washed long enough. The water should be fairly clear and
absent of fi nes before quitting the cleaning process. If not, proceed to regenerate the unit again until the water runs clear to the waste drain.
9) Re-bedding of media tank is now complete.
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