Sterling SRO-300 User manual

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SRO-300 INSTALLATION MANUAL
12630 US 33 N.
Churubusco, IN 46723
Ph. [phone] Fax [phone]
www.sterlingwatertreatment.com

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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 reviewthe 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.
PERMEATEis 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 maybe used with either an atmospheric (non-pressurized) or
pressurized style tank. If an atmospheric storage tank is used a float switch must be used to turn power off to
the system
1. Disconnect tubing and remove end cap from membrane housings.
2. Install membranes in housings.
The brine seal around the membrane must be on the inlet side of the housing.
3. Ensure each membrane is fully seated in membrane housing bottom end caps and reinstall the top cap on
membrane housings.
4. Reconnect the feed water tubing to the membrane end cap fittings.
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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4. Install the 20 micron sediment filter, 5 micron sediment filter and activated carbon filter in filter housings.
5. Connect 3/8” feed water to inlet of cartridgefilter housing.
6. Connect ¼” drain tubing to drain port of RO unit.
7. Connect ¼” PERMEATE(product) water tubing from carbon post filter tee fitting to storage tank (not
provided)
8. Connect ¼” PERMEATE (product) water tubing from carbon post filter elbow fitting to desired point-of-use.
1. Turn on feed water to RO system.
2. Use the red pressure relief buttons on the top of ALL of the cartridge filter housings to purge air out of the
canisters.
3. Apply 110v power to unit.
4. 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’
5. After the flushing cycle, slowly close the PRESSURE REGULATOR adjustment knob (turn clockwise) on the
drain line and monitor the concentrate and permeate water flow.
6. Continue adjusting the PRESSURE REGULATOR until the flow of the PERMEATE (product water) line is ½
of the flow of the CONCENTRATE (drain water) line.
Note: High TDS water maynot allow the 1:2 ratio of product water to drain water listed.
7. Allowthe 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 reverseosmosis 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
Sediment Filter
GB2020
Sediment Filter
GB2005
Carbon Filter
CB2005
Membrane
TFM-100 (x3)
Carbon Post Filter
IC10T
CONTROLLER
REPLACEMENT FILTERS

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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 replaceat its discretion any defectivecomponent. 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, physical damage, 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 consequential damages, 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?
In order to be eligible for service under 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.