background image

Inlet

(

without

 optional Pre-filter)

Pre-filter

(optional)

Outlet

MRS 

Processor

6TO-BW or 7TO-BW 

Carbon Cartridge
MR-100, 225 or 350 

RO Cartridge

7CC-BW or BW 4400 

Cartridge (optional)

To Storage 

Tank 

(not shown,

not 

included)

RO Reject 

(1/4" John 

Guest) route 

to drain

figure 1.

 Back view of Prefilter bracket.

Wing 

bracket

Prefilter bolts

figure 2.

 MRS Assembly.

2

Inlet

(

with

 Pre-filter)

noteS:

 

Please read this manual prior to installing and operating the 

• 

system. 

Incoming water supplies that do not meet these requirements 

• 

may need additional pre-treatment prior to the system. System 

performance may be affected if requirements are not met, 

including system output production and cartridge change-out 

frequency. 

If the supply pressure exceeds 80 PSI, install a pressure reducing 

• 

valve. Adjust the pressure reducing valve to the required 

operating pressure, not to exceed 80 PSI.

Consult with your local building inspector for approval and 

• 

required permits to install this system. Additional equipment, such 

as back-flow prevention devices, seismic restraint equipment, air 

gaps, etc., may be required. Completed installation must meet all 

local and national codes.

Do not connect the MRS system after any water filtration system, 

unless specifically provided for use with the MRS. 

unPackIng and InSPectIon

The MRS includes all the necessary fittings for installation. Lengths 

of 1/4” tubing have been provided for connecting to the wastewater/

drain connection. Supply lines and distribution piping/tubing are not 

included. 
The MRS system is packaged as a complete unit in two cartons. At a 

minimum, you should have the following:

carton 1 - 

Plate Mount Processor Assembly Including:

Pump system

A. 

Cartridge heads 

B. 

Transformer, pressure switch & gauges

C. 

carton 2 - cartridge kit including:

6TO-BW or 7TO-BW cartridge

A. 

MR-100, 225 or 350 RO cartridge 

B. 

7CC-BW Calcium carbonate (CC) cartridge (optional), or  

C. 

BW 4400 Cartridge (optional)

Inspect the cartons for damage. Report any damage to freight 

carrier immediately. Carefully unpack each item. Save the packaging 

material temporarily, as it may be used to protect painted surfaces 

during assembly.

SySteM aSSeMbly

The MRS is configured as a two piece unit; with the processor 

mounted on a vertical surface and the storage tank located nearby. 
Locate the system in an area that is convenient to the inlet water 

supply and drain facilities, with access for routing the product water 

tubing/piping to the equipment. Install in a dry location, away from 

all forms of corrosive and/or flammable materials. Consider ease of 

access for servicing when selecting a location.

Processor assembly Mounting

If the optional Pre-filter has been supplied, go to step to 2. If not 

1. 

supplied, go to step 5.
Position the MRS processor assembly so the rear of the 

2. 

mounting plate is accessible. Secure the wing bracket to the rear 

of the mounting plate as shown Figure 1. Use the 5/16” hex bolts 

and washers provided. Align the wing bracket so it is inward 

and upward as far as possible – use a combination square to 

maintain alignment. Tighten both bolts securely.
Attach Pre-filter head to Pre-filter bracket with 5/16” hex bolts, 

3. 

nuts and washers provided.
Insert elbow fitting into solenoid valve inlet. Connect 3/8” OD 

4. 

tubing between pre-filter outlet and elbow fitting on solenoid 

valve.

5.  The processor framework has 6 mounting holes (3 keyhole   

slots, 3 standard) on 5.5” centers for securing to a stationary   

vertical surface. Evaluate the mounting surface for its ability 

to properly support the weight of the processor when in 

operation (Approximately 40 pounds).

continued on the next page  . . . 

by-pass Plug 

(Remove if optional 

7CC-BW or BW 4400 cartridge are provided)

3123-42b IO Guide MRS - 112108.indd   2

9/11/09   11:15:27 AM

Summary of Contents for EV9970-20

Page 1: ...low 30 psi If it is above 30 the pump will not run Is there pressure on the left side gauge when the unit is running Is the motor running Is there water flowing down the drain Is there water flowing f...

Page 2: ...d impurities is referred to as permeate RO water or product water Depending on the model the permeate will do one of the following Systems without calcium carbonate CC cartridge The permeate will pass...

Page 3: ...ing 6TO BW or 7TO BW cartridge A MR 100 225 or 350 RO cartridge B 7CC BW Calcium carbonate CC cartridge optional or C BW 4400 Cartridge optional Inspect the cartons for damage Report any damage to fre...

Page 4: ...ure 3 Connect to A the Inlet open port 3 8 JG on the solenoid valve MODELS WITH PRE FILTER See Figure 4 Connect to the B Inlet open port 3 8 JG on the pre filter head Connect the appropriate size and...

Page 5: ...he steps for this are outlined below Locate the 3 8 OD tubing that connects to the storage tank 1 Disconnect the end which connects to the fitting at the processor Measure 1 ounce of 5 25 bleach for e...

Page 6: ...pendant on Pressure volume in storage line sizes Volume Gallons Dependant on Pressure volume in storage Pressure typical 25 40 psi 1 7 2 8 bar Salt Rejection 90 minimum Recovery 25 typical dIMenSIonS...

Page 7: ...nance SectIon Performance Log test date outlet flow ml min drain flow ml min Inlet Pressure temp psi f Intlet tdS ppm outlet tdS ppm reduction noteS 6 3123 42b IO Guide MRS 112108 indd 6 9 11 09 11 15...

Page 8: ...equipment restrictive a Increase tubing piping diameter Refer a to System Installation section for recommendations Incorrect storage tank pre charge b Empty water in storage tank Check pre charge b pr...

Page 9: ...e with EV312932 Sol Valve 10 EV311096 EV312932 Valve Solenoid 24 VAC 3 8 Plastic Body Valve Solenoid 24 VAC 1 4 Metal Body 11 EV312230 Pump Booster 24 VAC 45 PSI 12 EV311409 Gauge Prs 2 1 8 lm 125 psi...

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