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4

WARNING

 Refer to 

Reject to Drain, Maximum 

under 

RO 

Production

 in the Performance Table (page 5) to determine the 

maximum gallon per minute waste flow rate. Verify drain has ample 

capacity for this waste flow, plus all other souces of waste flow 

sharing this drain.

electrical connections

The system is pre-wired at the factory. Verify that your supply 

voltage matches the primary voltage on the transformer dataplate. 

Available voltages are 115, 230 & 240 VAC.  A ground fault protected 

circuit rated at 15 Amps minimum is required. Plug-in power cord 

when instructed to do so in the following section.

cartrIdge InStallatIon and actIVatIon

Remove the outer shrink-wrap and protective closure from the 

1. 

pre-filter (optional), TO, RO (MR) and CC cartridge (optional) or 

BW 4400 cartridge (optional).
If the optional Pre-filter has been supplied, go to step to 3. If not 

2. 

supplied, go to step 4.
Locate the sump (clear bowl) for the pre-filter housing. Install 

3. 

the pre-filter cartridge into the sump. Locate the O-ring in the 

small parts pack. Lightly lubricate this O-ring with a food grade 

lubricant and install it into the groove in the sump. Install the 

sump with pre-filter and O-ring into the pre-filter head. Use the 

sump wrench to tighten the sump securely.
Install the TO cartridge into the TO head (left-hand), following 

4. 

the instructions on the cartridge.
Slowly open the inlet supply valve. Position a bucket underneath 

5. 

the RO cartridge head (center) to collect the water. Apply power 

to the system by plugging the power cord into the receptacle. 

Within moments, water should begin to spill out of the RO head 

and into the bucket. Carbon fines and air will be flushed out 

of during this time. Flush until water runs clear (2-3 minutes 

typically). If the bucket requires emptying, un-plug the power 

cord from the receptacle to stop the flow, then empty the bucket. 

Reposition the bucket and repeat the flushing operation as 

required. Once the TO cartridge has been flushed, un-plug the 

power cord from the receptacle.
Install the RO cartridge into the RO head, following the 

6. 

instructions on the cartridge. 
If the optional 7CC-BW or BW 4400 cartridge has been supplied, 

7. 

go to step to 8. If not supplied, go to step 9.
Remove the plug from the 7CC-BW/BW 4400 cartridge head 

8. 

(right-hand). Install the 7CC-BW or BW 4400 cartridge into the 

head, following the instructions on the cartridge.  If the optional 

7CC-BW has been supplied, go to step to 9. If the optional BW 

4400 cartridge has been supplied, open blend valve fully (See 

figure 5). Go to step to 9.
Disconnect the tubing connecting the storage tank to the system 

9. 

at the storage tank and route to a drain temporarily. 

WARNING

 do not use this product water! It may contain a 

preservative solution from the ro cartridge and should not be 

consumed!

Apply power to the system by plugging the power cord into the 

10. 

receptacle. Within moments, water should begin to exit the 

storage tank tubing. If the optional BW 4400 cartridge has been 

supplied, close blend valve after 3 minutes. Allow the system to 

flush for at least 1 hour or until 5 gallons of product water has 

been produced. Un-plug the power cord. Re-connect the tubing 

to the storage tank.

dISInfectIon

When flushing is complete, the storage tank and associated piping 

must be disinfected, and then completely flushed. The 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 every 7.5 gallons 

of storage tank capacity. Pour this volume of bleach into the tube 

that leads to the storage tank. Re-connect this tube to the fitting. 

Apply power to the system by plugging the power cord into the 

receptacle. The booster pump should begin to run and fill the 

storage tank.
Once sufficient water has entered the storage tank (more 

2. 

than 1/4 full), demand treated water from at least one piece of 

equipment the MRS is supplying water to. Once all of the air has 

been purged, and a solid flow of water is observed, stop the flow 

at the connected equipment. Purge the air from all remaining 

pieces of connected equipment by demanding water from each 

one individually. 
Allow the storage tank to fill until the booster pump turns off. 

3. 

Allow the chlorinated water to remain in the storage tank and 

distribution piping for 10 minutes.
Un-plug the power cord. Drain the storage tank by demanding 

4. 

water downstream and allow the storage tank to drain. Once the 

storage tank is empty, stop demanding water downstream.
Apply power to the system by plugging the power cord into the 

5. 

receptacle. Once sufficient water has entered the storage tank 

(more than 1/4 full), demand treated water from at least one piece 

of equipment the MRS is supplying water to. After 5 minutes, 

stop the flow at the connected equipment. Flush the lines to each 

remaining piece of connected equipment by demanding water 

from them for 2 minutes each.
Allow the storage tank to fill until the booster pumps turns off.

6. 

Un-plug the power cord. Drain the storage tank by demanding 

7. 

water downstream and allow the storage tank to drain. Once the 

storage tank is empty, stop demanding water downstream 
Repeat steps 5-7 until no residual chlorine odor is detected from 

8. 

the water exiting the storage tank drain valve or connected 

equipment.

blend ValVe adJuStMent - MrS-350bl only

A blend valve (below pump) and sample valve (on right-side of 

processor where tank connects) have been provided to adjust and 

measure the TDS level of the treated water. Adjustment should be 

made when the system is processing water, and the storage tank is 

isolated. When making adjustments, allow the line to flush briefly 

after an adjustment is made, collect a 16 oz. sample, then measure 

the TDS with a calibrated TDS meter. Close the blend valve to reduce 

the TDS, open it to increase the TDS.  See figure 5 for blend valve 

location.

PlacIng the MrS Into SerVIce

Once the cartridges have been activated, the storage tank & 

distribution piping sanitized, the MRS can be placed into service.
During normal operation, the valves on the MRS should be in the 

following positions:

System inlet and outlet valves – open

A. 

System by-pass valve – closed.

B. 

Once the system been started-up initially, it is a good idea to 

measure the outlet water flow rate and quality to verify the system’s 

performance. The initial values should be recorded for future 

comparison to detect any changes in performance. A Performance 

Log has been provided on Page 6 to record this information.

oPeratIon

During normal operation, a continuous supply of water must be 

1. 

available to the system.
The system inlet and outlet valves must be open, the sample 

2. 

outlet and flushing valves must be closed and the drain line must 

be unrestricted.

3123-42b IO Guide MRS - 112108.indd   4

9/11/09   11:15:29 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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