BLS 9000 Optimum User manual

Installation, Operation, and Maintenance Manual
BLS 9000 Optimum
REVERSE OSMOSIS SYSTEM
JUNE 2022

Table of Contents
3. BLS Reverse Osmosis System Introduction
3. How Reverse Osmosis Works
3. Definitions
3. Factors Affecting System Operation and
Performance
4. Getting to Know Your BLS RO System
4. Major Components Parts List
5. System Specifications
5. System Operation Specifications
5. Feed Water Parameters
5. Dimensions and Weight
5. Service Connections
5. Design Test Conditions
6. System Installation Instructions
8. S-150 RO Controller Guide
8. Controller Introduction
8. Controller Specifications
8. Front Panel Controls and Indicators
9. Terminal Strip, Jumper, and Adjustment
Locations
9. Power Wiring
9. Pump and Relay Outputs
9. RO Pump Wiring
9. Inlet and Flush Solenoid Wiring
9. TDS/Conductivity Cell Wiring
9. Switch Inputs
10. I/O Expander Board (Optional)
11. Change or Display Setpoints
11. System Operation
11. Display
11. Operating Status Message
12. TDS/Conductivity
12. Operating Hours
12. Warning Messages
12. Tank Full Operation
12. Tank Full Restart
12. Tank Full Override
12. Pressure Fault
12. Auto Reset
12. Alarm Silence
12. Pretreat
13. Membrane Flush
13. High TDS/Conductivity Warning/Alarm
13. Operating Hours Exceeded
13. I/O Expander (Optional)
14. Controller Adjustments
14. TDS/Conductivity Expander (Optional)
15. Troubleshooting
16. S-150 RO Controller Setpoints
17. System Startup Procedure
19. Filter Cartridge Installation & Replacement
20. System Pressure Switches
20. Inlet Low Pressure Switch
20. Product Water Pressure Switch (Optional)
21. Servicing the Membrane Element(s)
21. Membrane Element Replacement
22. Sanitizing the RO System
22. Membrane Flush
23. Replacement Parts List
24. BLS System Troubleshooting
25. Flow Diagram & Electrical Schematics
29. System Log

Page 3
BLS Reverse Osmosis System
Introduction
Your BLS Reverse Osmosis System has been designed to
produce quality water for a variety of applications. We are
condent that you will nd BLS Systems provide quick and
simple installation, hassle-free maintenance, and years of
reliable and trouble-free operation.
BLS RO Systems incorporate years of engineering
experience, dedicated workmanship, and quality
manufactured components. Each system is built with pride
and is factory tested for superior performance.
As with all products, the customer has the responsibility to
ensure that the BLS RO System is operated under proper
conditions and within design limitations. All installation,
startup, and maintenance instructions must be followed
carefully.
HOW REVERSE OSMOSIS WORKS
In the reverse osmosis process, water is forced under
pressure through a semipermeable membrane to reduce
the dissolved mineral content of the water. The membrane
allows water molecules to pass through, but blocks/hinders
the passage of dissolved substances and suspended
particles. This process reduces the levels of dissolved
salts, minerals, and suspended particles, while improving
the taste, odor, and clarity of the water.
Certain contaminants found in water are measured as
Total Dissolved Solids (TDS). Unlike conventional ltration
systems, reverse osmosis systems divide the feed water
into two streams: product water (permeate) and drain/
reject water (concentrate). The product water is the desired
outcome of the RO System—much cleaner and fresher
tasting water! The drain/reject water is vital for carrying
away the dissolved salts, minerals, and suspended
particles. Unlike conventional ltration systems, most
contaminants removed from water are not held within the
system, but instead ushed away.
DEFINITIONS
Feed Water – The incoming water to be processed by the
RO system.
Product Water (permeate) – The portion of the feed water
that has passed through the membrane element. It is the
desired result of a RO system.
Concentrate Water (reject or drain water plus
recirculation) – The portion of the feed water that has
owed across the membrane (not through) and has not
been converted to product water. This water now contains
a higher concentrate of dissolved solids and may also
contain organic matter and suspended particles rejected
by the membrane. The concentrate is then split into two
streams—reject and recirculation. The recirculated water
is mixed with the feed water on the inlet side of the pump.
The reject water is sent down the drain. This design is used
as a way to minimize the amount of water sent to drain.
Recovery – The percentage of feed water which becomes
product water. The recovery rate is determined by the
number of gallons (or liters) of product water divided by the
total gallons (or liters) of feed water, and multiplied by 100.
Percent Rejection – The percentage of dissolved solids in
the feed water that does not pass through the membrane.
The membrane prevents passage of dissolved solids and
other contaminants into the product water.
Conductivity – The property of a substance to conduct or
transmit electricity. The unit of measure is in mhos and is
commonly used to determine the purity or quality of water.
In the water treatment industry, it is often converted to ppm
TDS (parts per million Total Dissolved Solids).
FACTORS AFFECTING SYSTEM OPERATION AND
PERFORMANCE
Feed Water Temperature – The volume of product
water increases with higher feed water temperatures,
and decreases with lower feed water temperatures.
Temperatures below 35°F could crack the membrane
element, and temperatures above 90°F may cause rapid
deterioration. The recommended range is between 45°F
and 90°F.
Feed Water Pressure – The recommended range is
between 40 psi and 85 psi. This is the most common range
of municipal water supplies.
Hydrolysis – The natural chemical breakdown of
membrane elements when in contact with water. This
breakdown is accelerated when the water temperature
is above 90°F, the pH is not within the tolerable range,
or when hydrogen sulde is present. Refer to the
System Specications section of this manual. Additional
pretreatment may be required in these cases.
Bacteria – When RO systems are operated intermittently,
they will likely be exposed to bacteria. Following a
prolonged shutdown or storage period, the system should
be sanitized. Refer to the Sanitizing the RO System section
in this manual regarding sanitization.
Membrane Element Fouling or Surface Coating –
Fouling is a common problem with membrane elements
as a result of salts, hardness, iron, etc. collecting on the
membrane surface. As the pores and channels of the
membrane element become plugged, the water production
rate is reduced. Pretreatment equipment, such as a water
softener, iron lter, or activated carbon lter will reduce
membrane element fouling and extend its life.

Page 4
GETTING TO KNOW YOUR BLS RO SYSTEM
BLS 9000 OPTIMUM
It is important that you familiarize yourself with the BLS RO System. Pictured below is the BLS RO System with the main
components identied. These components will be referred to throughout the manual. Noting their location will assist you in
startup and maintenance of the RO system.
MAJOR COMPONENTS PARTS LIST
THIS MANUAL COVERS THE INSTALLATION, OPERATION, AND MAINTENANCE OF THE BLS 9000 OPTIMUM
SYSTEM. IT IS IMPORTANT TO READ THIS MANUAL THOROUGHLY BEFORE INSTALLING THE SYSTEM.
1. System Operating Pressure Gauge
2. S-150 RO Controller
3. Product Water Flow Meter
4. Inlet Feed Water Low Pressure Switch
5. Reject Water Flow Meter
6. Reject Water Control Valve
7. Pre-Filter Inlet Pressure Gauge
8. Pre-Filter Outlet Pressure Gauge
9. Pre-Filter Housing
10. Pump/Motor
11. Pressure Regulator
12. Inlet Solenoid Valve
13. Auto Flush Solenoid Valve
14. Membrane Pressure Vessels
15. Product Water TDS Probe
16. Product Water Check Valve

Page 5
SYSTEM SPECIFICATIONS
SYSTEM OPERATION SPECIFICATIONS
Production Rate 9,000 gpd / 6.3 gpm (34,069 lpd / 23.7 lpm)
Membrane Elements (3) 4 x 40 High Flux TFC Polyamide
Rejection Rate 95 to 99%
Recovery Rate 50 to 70%
Nominal Flow of Feed Water During Operation 9.45 gpm
Nominal Flow of Feed Water During System Flush 16 gpm
Low Feed Water Pressure Switch System shuts down at 15 psi
System starts at 20 psi
Product Water Pressure Switch (Optional) System shuts down at 45 psi
System starts at 25 psi
System Operating Pressure 165 psi
Product Water Back Pressure Maximum 50 psi
Pre-Filtration Minimum 5 micron*
* An activated carbon lter is required with chlorinated feed water.
FEED WATER PARAMETERS
This system is designed for use on potable water sources only.
Temperature 40 to 85ºF
Inlet Feed Water Pressure 35 to 85 psi
Chlorine Maximum 0.1 ppm
Hardness Maximum 10 gpg
Oil Tolerance 0.0 ppm
Silt Density Index (SDI) 5
Turbidity Maximum 1 NTU
pH 3 to 10
Hydrogen Sulde Must be removed
Iron Maximum (Dissolved Only) 0.01 ppm
TDS Maximum 2,000 ppm
Operating Pressure Maximum 180 psi
DIMENSIONS AND WEIGHT
Height 60 inch (152 cm)
Width 25 inch (64 cm)
Depth 21 inch (53 cm)
Weight (approximate) 300 lb (136 kg)
SERVICE CONNECTIONS
Feed Water Inlet 3/4 inch FNPT
Reject Outlet to Drain 1/2 inch Tube
Product Outlet Storage 1/2 inch Tube
DESIGN TEST CONDITIONS
Feed Water TDS 500 ppm as NaCl
Operating Pressure 165 psi
Feed Water Temperature 77ºF (25ºC)
System Design Recovery 70%