sterling water treatment SRO Series User manual

SRO-1000 through SRO-4000 (170203).docx
INSTALLATION MANUAL
12630 US 33 N.
Churubusco, IN 46723
Ph. [phone] Fax [phone]
www.sterlingwatertreatment.com
SRO-4000
SRO-1000
SRO-2000
SRO-1000 pictured

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Thank you for choosing the Sterling SRO Series commercial reverse osmosis system. This reverse osmosis
system includes a cartridge type sediment filter and carbon filter. Additional treatment (iron filter, water softener,
etc.) may also be required prior to the reverse osmosis system. Please review the recommended water quality
limitations.
Ensure proper electrical power is supplied to the unit.
Do not use where the water ismicrobiologically unsafe.
Never allow the pump to run dry.
Never start or run the unit with the drain valve fullyclosed.
PERMEATE is referring to product water.
CONCENTRATE is referring to drain water.
Feed water must be iron-free and less than 5 gpg hardness.
This unit is not supplied with a storage tank, but may be used with either an atmospheric (non-pressurized) or
pressurized style tank. Either a pressure switch (pressurized storage) or a float switch (atmospheric storage)
may be connected to the controller.
1. Remove v-band clamp and end cap from membrane housing and install membrane in housing.
Refer to the direction of flow arrow label on the membrane housing and ensure proper direction of flow
of the membrane. The brine seal around the membrane must be on the inlet side of the housing.
2. Ensure membrane is fully seated in membrane housing bottom end cap and reinstall the top end cap and v-
band clamp on membrane housing.
3. Ensure that 5 micron sediment filter and activated carbon filter are installed in filter housings.
3. Connect feed water to inlet of cartridge filter housing.
4. Connect drain tubing to drain port of RO unit.
Water Quality
Limitation
Hardness
<5 gpg
Iron (Fe)
<0.1 ppm(mg/l)
Manganese (Mn)
<0.05 ppm(mg/l)
Hydrogen Sulfide (H2S)
None Allowed
TDS
<2,000 ppm (mg/l)
pH
4 –11 (optimum at 7.0 –7.5)
Temperature
40-100°F (4-38°C)
Pressure
>20 psi
PRE-INSTALLATION
INSTALLATION
Brine Seal
Direction of Flow

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5. Connect PERMEATE port of RO unit to storage tank (not provided) and desired point-of-use.
6. Connect either pressure switch (pressurized storage) or float switch (atmospheric storage) from storage tank
to wiring labeled LEVEL CONTROL LOOPS.
CAUTUON: The level control wiring is DRY CONTACT only. DO NOT SEND ELECTRICAL POWER
TO THE CONTROLLER THROUGH THISWIRING. A qualified electrician maybe required.
7. Connect the ground wire provided on base of unit to an approved ground.
8. Ensure power switch is turned OFF and plug unit in to proper power source. CAUTION: Check the direction
of rotation on the pump of 3-phase units. If the pump runs backwards change 2 leads of the 3-phase
power to reverse the rotation.
1. Remove the protective cover of the PRESSURE REGULATOR and ensure the adjustment knob is fully open
(turn counterclockwise).
2. Turn on feed water to RO system.
3. Use the red pressure relief buttons on the top of BOTH of the cartridge filter housings to purge air out of the
canisters.
4. Turn power switch ON.
5. Inlet valve will open and pump will start running. Reverse osmosis unit will Auto Flush a high flow of water to
the drain for 60 seconds. The following lights should be illuminated on the control panel:
‘POWER’ ‘LOW WATER’ ‘PRODUCING’ ‘FLUSHING’
6. After the flushing cycle, slowly close the PRESSURE REGULATOR adjustment knob (turn clockwise) and
monitor the concentrate and permeate flowmeters and the CONCENTRATEpressure gauge. Ensure the
membrane pressure on the CONCENTRATE gauge does not exceed 225 psi.
7. Continue adjusting the PRESSURE REGULATOR until the indicated flow on the PERMEATE flowmeter is
½ of the flow of the CONCENTRATE flow meter. Ensure the membrane pressure never exceeds 225 psi.
Note: High TDS water may not allowthe 1:2 ratio of product water to drain water listed.
8. Allow the unit to fill the storage tank (not provided). When storage tank is full the pump will stop and the
“POWER’ and ‘LOW WATER’ lights will remain illuminated.
START UP
INSTALLATION (continued)

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Indicator Light
Description
FULL
Light indicates when product water storage tank is full
FLUSHING
Light indicates the 60 second flushing cycle before every production cycle
PRODUCING
Light indicates the reverse osmosis unit is producing water
LOW WATER
Light indicates adequate feed water pressure
NO Light indicates low feed water pressure
POWER
Light indicates unit is supplied with electrical power
SRO-1000
SRO-2000
SRO-3000
Sediment Filter
GB2005
Carbon Filter
CB2005
Membrane
TW30-4021
BW30-4040 (x1)
BW30-4040 (x2)
CONTROLLER
REPLACEMENT FILTERS

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Schematic

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REVERSE OSMOSIS WATER SYSTEM LIMITED WARRANTY
What Does This Warranty Cover?
This warranty covers any defects in materials and workmanship of the R.O. Drinking Water System when
installed and operated within recommended parameters, with the exceptions stated below.
How Long Does The Coverage Last?
The manufacturer will warrant its R.O. Drinking Water System, for a period of one year from the date of
purchase. All implied warranties including merchantability and fitness for a particular purpose are limited to one
year from the date of purchase for the R.O. Drinking Water System. Some states do not allow limitations on how
long an implied warranty lasts, so the above limitations may not apply to you.
What Will The Manufacturer Do?
The manufacturer will repair or replace at its discretion any defective component. You must pay any labor
charges. You must also pay for shipping or travel charges to return the defective part(s).
What Does This Warranty Not Cover?
This warranty does not cover the disposable sediment and carbon filters whose service life depends on feed
water conditions. In addition, the membrane is only warranted if the required feed water conditions are met.
The above warranty will also not apply to any part of the R.O. Drinking Water System that is damaged because
of neglect, misuse, alterations, accident, misapplication, physicaldamage, or damage caused by fire, acts of
God, freezing or hot waters or similar causes. Consequential and incidental damages are not recoverable under
this warranty. Some states do not allow the exclusion or limitation of incidental or consequentialdamages, so
the above limitation or exclusion may not apply to you.
We recommend that you use only the manufacturer's replacement parts since improper parts or incorrectly
performed maintenance or repair voids this warranty.
How Do You Get Service?
Inorder to be eligible for serviceunder this warranty you must (a) contact your local dealer who supplied the
unit.
How Does State Law Apply?
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.