HydroLogic Hydroid User manual

Reverse Osmosis
User Manual
888-426-5644
[e-mail]

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TABLE OF CONTENTS
INTRODUCTION................................................................................................................................................5
SAFETY..............................................................................................................................................................6
PRECAUTIONARY STATEMENTS ..............................................................................................................6
COMPONENT IDENTIFICATION AND DESCRIPTION....................................................................................7
CONTROLLER..............................................................................................................................................9
PRE-FILTRATION.........................................................................................................................................9
FEED PRESSURE GAUGE ..........................................................................................................................9
LOW PRESSURE SWITCH ..........................................................................................................................9
PUMP ............................................................................................................................................................9
PUMP PRESSURE GAUGE .......................................................................................................................10
MEMBRANES..............................................................................................................................................10
CONCENTRATE (DRAIN) PRESSURE GAUGE........................................................................................10
CONCENTRATE (DRAIN) FLOW METER .................................................................................................10
PRODUCT (PURIFIED WATER) FLOW METER .......................................................................................10
BLEND VALVE............................................................................................................................................10
SYSTEM INSTALLATION................................................................................................................................11
MOUNTING.................................................................................................................................................11
FEED WATER CONNECTION....................................................................................................................11
PRODUCT (PURIFIED WATER) CONNECTION .......................................................................................11
CONCENTRATE (DRAIN) CONNECTION .................................................................................................12
ELECTRICAL...............................................................................................................................................12
TANK ...........................................................................................................................................................12
FEED WATER AND OPERATION SPECIFICATIONS....................................................................................13
OPERATING LIMITS* .................................................................................................................................13
DESIGN BASIS AND DESIGN NOTES...........................................................................................................14
SYSTEM PURGING/INITIAL START–UP........................................................................................................15
OPERATING DO'S AND DON'TS....................................................................................................................17
FLUSHING THE SYSTEM ...............................................................................................................................18
MEMBRANE INSTALLATION, REMOVAL AND REPLACEMENT..................................................................19
ENCAPSULATED MEMBRANE ELEMENTS..................................................................................................20
REJECTION, RECOVERY AND FLOW RATES..............................................................................................21
MEMBRANE PERFORMANCE...................................................................................................................21
REJECTION ................................................................................................................................................21
RECOVERY.................................................................................................................................................21
TEMPERATURE CORRECTION FACTORS FOR MEMBRANES..................................................................22
OPERATING LOG............................................................................................................................................24
PREPARING UNIT FOR STORAGE OR SHIPMENT .....................................................................................25
PREPARING THE SYSTEM FOR STORAGE............................................................................................25
PREPARING THE UNIT FOR SHIPMENT .................................................................................................25
TROUBLESHOOTING .....................................................................................................................................26
TECHNICAL ASSISTANCE .............................................................................................................................26
S-100 CONTROLLER SPECIFICATIONS AND INSTRUCTIONS ..................................................................26
CIRCUIT BOARD LAYOUT……………………………………………………………………………………………29
SYSTEM OPERATION................................................................................................................................30
General Operation ..................................................................................................................................30
Display and Status Indicators.................................................................................................................30
RO Start Delay........................................................................................................................................30
Pressure Fault ........................................................................................................................................30
PF Auto Reset/PF Retry.........................................................................................................................31
Tank Full.................................................................................................................................................31
Pre-treat Lockout ....................................................................................................................................31
Water Quality Display .............................................................................................................................31
Membrane Flush.....................................................................................................................................32
Water Quality Setpoint............................................................................................................................32

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Calibration...............................................................................................................................................32
TROUBLESHOOTING............................................................................................................................33
System Inoperative.................................................................................................................................33
Inlet valve will not operate ......................................................................................................................33
RO Pump Will Not Operated...................................................................................................................33
HYDROID FLOW DIAGRAM............................................................................................................................34
ELECTRICAL SCHEMATIC.............................................................................................................................35
SYSTEM WARRANTY.....................................................................................................................................36

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INTRODUCTION
The Hydroid Reverse Osmosis System is a state-of-the-art, versatile system for treating tap
water supplies with minimal set-up, low energy consumption, low maintenance, and reduced
operating costs. The Hydroid system features a robust, innovative design that requires no
adjustments in the event of feed water quality or temperature variations. Your Hydroid system
is a durable piece of equipment which, with proper care, will last for many years. Standard
features include CONCENTRATE (drain) water recycle loop, PRODUCT (purified water) blend
valve, PRODUCT (purified water) TDS monitoring, and preset pump, CONCENTRATE (drain)
water and CONCENTRATE (drain) water recycle flows. Hydroid series systems feature high
quality parts and components for enhanced performance and reliability including Encapsulated
Membrane Elements, glycerin filled pressure gauges, acrylic flow meters, Encapsulated carbon
pre-filter, Grundfos pump, 316SS needle valve, and computer controller.
This User Manual outlines installation, operation, maintenance and troubleshooting details vital
for the sustained performance of your system.
PRIOR TO OPERATING OR SERVICING THE REVERSE OSMOSIS SYSTEM, THIS USER
MANUAL MUST BE READ AND FULLY UNDERSTOOD. KEEP THIS AND OTHER
ASSOCIATED INFORMATION NEAR THE SYSTEM FOR FUTURE REFERENCE.
IN ORDER TO MAINTAIN THE MANUFACTURER’S WARRANTY, AN OPERATING LOG
MUST BE MAINTAINED. COPIES WILL NEED TO BE SENT TO HYDROLOGIC FOR
REVIEW IN THE EVENT OF A WARRANTEE COVERAGE ISSUE.

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SAFETY
Defined below are the two safety headings used throughout this Users Manual’s text.
WARNING: INDICATES STATEMENTS THAT ARE USED TO IDENTIFY
DANGEROUS CONDITIONS OR PRACTICES. FAILURE TO FOLLOW
WARNINGS COULD RESULT IN SERIOUS INJURY OR DEATH.
CAUTION: INDICATES STATEMENTS THAT ARE USED TO IDENTIFY
CONDITIONS OR PRACTICES THAT COULD RESULT IN EQUIPMENT OR
OTHER PROPERTY DAMAGE.
STATEMENTS IN BOLD AND ALL CAPITALS ARE ADVISORY OR INFORMATIONAL
STATEMENTS OF PARTICULAR IMPORTANCE TO THE HEADING UNDER WHICH THEY
ARE FOUND.
PRECAUTIONARY STATEMENTS
DO NOT USE WHERE THE WATER IS MICROBIOLOGICALLY UNSAFE OR
OF UNKNOWN QUALITY WITHOUT ADEQUATE DISINFECTION BEFORE OR
AFTER THE SYSTEM.
ALWAYS TURN OFF THE UNIT, SHUT OFF THE FEEDWATER, RELIEVE
PRESSURE, AND DISCONNECT THE ELECTRICAL POWER BEFORE
WORKING ON THE UNIT.
PRE-TREATMENT MUST BE SUFFICIENT TO ELIMINATE CHEMICALS,
ORGANICS OR INORGANICS THAT COULD DAMAGE THE MEMBRANE
MATERIAL.
DO NOT OPERATE THE SYSTEM WITH INSUFFICIENT FEED FLOW. NEVER
ALLOW THE PUMP TO RUN DRY.
NEVER ALLOW THE UNIT TO FREEZE OR OPERATE WITH A FEEDWATER
TEMPERATURE ABOVE 85°F.
DO NOT PERMIT CHLORINE TO BE PRESENT IN THE FEED WATER.
DO NOT SHUT DOWN THE SYSTEM FOR EXTENDED PERIODS. IT IS BEST
TO RUN THE SYSTEM AS MUCH AS POSSIBLE ON A CONTINUOUS BASIS.

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COMPONENT IDENTIFICATION AND DESCRIPTION
ITEM
NUMBER
DESCRIPTION
1
CONTROLLER, COMPUTER, S-100, 110V, 1PH, W/TDS PROBE
2
METER, FLOW, 0.2-2 GPM, 1/2" MNPT x 1/4" FNPT CONCENTRATE (drain)
3
METER, FLOW, 1-5 GPM, 1/2" MNPT x 1/4" FNPT PRODUCT (purified water)
4
GAUGE, PM, GLY FILL, 0-100 PSI/BAR, 2.5" DIA (FEED PRESSURE)
5
GAUGE, PM, GLY FILL, 0-300 PSI/BAR, 2.5"DIA (PUMP PRESSURE)
6
VALVE, NEEDLE, SS 316L, 1/4" FNPT (BLEND VALVE)
7
GAUGE, PM, GLY FILL, 0-300 PSI/BAR, 2.5"DIA (CONCENTRATE PRESSURE)
8
UNION, BULK HEAD, 1/2" QC X 1/2" QC, JG PRODUCT (purified water)
9
UNION, BULK HEAD, 1/2" QC X 1/2" QC, JG CONCENTRATE (DRAIN)
10
UNION, BULK HEAD, 1/2" QC X 1/2" QC, JG (FEED)
11
MEMBRANE, PVC, 1/2"P X 1/2"C, QC, ENCAPSULATED, HYDROLOGIC, HL 11590
12
CARTRIDGE, CARBON, GACC, 1/2” QC, ENCAPSULATED, HYDROLOGIC, HL 11591

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ITEM
NUMBER
DESCRIPTION
13
VALVE, CHECK, PP, GLASS FILLED, BLACK, 1/2" FNPT X 1/2" FNPT
14
SWITCH, TANK, PRESSURE, 0-20 PSI, 3/8" QC (LOW PRESSURE SWITCH)
15
SWITCH, TANK, PRESSURE, 40-60 PSI, 3/8" QC (HIGH PRESSURE SWITCH)
16
VALVE, SOLENOID, 2-WAY, COMPOSITE, 120V, N/C, 1/2" FNPT, ASCO
17
PUMP, CM1-6, 1HP, 115/230V 60HZ 1PH, 10.6 AMPS 304SS, 98125766, GRUNDFOS
18
CONNECTOR, FLOW CONTROL, 1/2"QC (RECYCLE FLOW RESTRICTOR)
19
CONNECTOR, FLOW CONTROL, 3/8"QC (CONCENTRATE (DRAIN) FLOW
RESTRICTOR)

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CONTROLLER
The Hydroid system comes standard with an S-100 Controller. The S-100 series controller is
a state-of-the-art, microprocessor-controlled system for commercial and industrial reverse
osmosis systems.
The S-100 includes numerous standard features such as pressure switch control, motor
contactor, TDS/conductivity monitor with adjustable limit, pre-treatment lock out, tank level
switch controls, and flush valve control. The controller displays system status, sensor, and
switch input status on an easy-to-read 3-digit LED display.
PRE-FILTRATION
Hydroid systems are supplied with an Encapsulated carbon pre-filter. Change the pre-filter
when a 10-15 psi differential exists between the incoming water supply pressure and “FEED”
pressure (Pre-filter Out Pressure) on the system. For example, if the inlet pressure is 60 psi,
the pre-filter should be changed when the FEED Pressure Gauge is 45-50 psi or below, and/or
after capacity has been reached (75,000 gallons).
THE SYSTEM MUST BE OPERATED ON PRE-FILTERED WATER ONLY
FEED PRESSURE GAUGE
This gauge measures the water pressure when it exits the pre-filter.
LOW PRESSURE SWITCH
The low-pressure switch shuts off the system when the feed water pressure drops below 15
psi, preventing damage to the pump. The system restarts automatically when there is a
constant pressure of 35 psi or more.
IF THE SYSTEM PRESSURE IS FLUCTUATING, AND THE SYSTEM CYCLES
OFF AND ON, TURN THE SYSTEM OFF AND ENSURE THAT PROPER FEED
WATER FLOW AND PRESSURE ARE BEING SUPPLIED TO THE SYSTEM.
PUMP
The Hydroid system uses a multi-stage centrifugal stainless-steel pump. If any damage occurs
to your system’s pump, a rebuild kit is available. Contact your local dealer or distributor and
inform them of your system and pump model.
THE SYSTEM MUST BE OPERATED ON PRE-FILTERED WATER ONLY

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PUMP PRESSURE GAUGE
The pump pressure gauge measures the pressure of the water as it enters the first membrane
in the system.
MEMBRANES
The Hydroid system comes standard with Encapsulated Membrane Elements. Membranes
separate impurities from water through the reverse osmosis process. See Membrane
Information and Handling section of this manual for additional information.
CONCENTRATE (DRAIN) PRESSURE GAUGE
The CONCENTRATE (drain) pressure gauge measures the pressure of the CONCENTRATE
(drain water) as it exits the last Membrane of the system. Subtracting the CONCENTRATE
(drain) pressure from the pump pressure will give the pressure drop across the Membrane
array.
CONCENTRATE (DRAIN) FLOW METER
The CONCENTRATE (drain) flow meter measures the amount of wastewater the system is
sending to drain as gallons/liters per minute.
PRODUCT (PURIFIED WATER) FLOW METER
The PRODUCT (purified water) flow meter measures the amount of PRODUCT (purified water)
water the system is producing as gallons/liters per minute.
BLEND VALVE
Allows for a mixture of post-carbon treated water into the RO’s PRODUCT (purified water)
water to achieve desirable PRODUCT (purified water) TDS and higher flow rates.
IF THE SYSTEM HAS AN ANTI-SCALANT FILTER, THE BLEND VALVE MUST
REMAIN CLOSED. THIS IS TO AVOID INGESTION OF ANY CHEMICALS AND
CAN BE TOXIC FOR AGRICULTURAL USE. HL 11595

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SYSTEM INSTALLATION OVERVIEW
Refer to page 15-18 for detailed instructions.
CHOOSING A LOCATION
When choosing a location to install the system, select an area with enough room to remove
the membranes and easily access components and connections. Make sure there is enough
room for service to be performed on the system. Take into consideration where your electrical
power supply is located and where the nearest drain is located. Do not install system in direct
sunlight, high intensity lights or subject the system to temperature extremes (see operating
limits chart) and or excess humidity. The Hydroid system should be secured in compliance with
state and local regulations.
FEED WATER CONNECTION
Locate the ½” Quick Disconnect fitting on the right side of the system
labeled “FEED”. Attach the inlet tubing to the system.
FEED LINE MUST BE ½ INCH (PROVIDED).
SYSTEM REQUIRES A CONTINUOUS FLOW OF WATER
WITH A MINIMUM FEED PRESSURE OF 40 PSI, NOT TO
EXCEED 85 PSI.
PRODUCT (PURIFIED WATER) CONNECTION
Locate the 1/2” Quick Disconnect fitting on the right side of the system
labeled “PRODUCT (purified water)” and attach to storage tank. If you
need more product tubing, contact your dealer.
ENSURE THAT THE PRODUCT (PURIFIED WATER) CAN FLOW FREELY WITH
NO BACK PRESSURE. BACK PRESSURE CAN CAUSE IRREVERSABLE
DAMAGE TO THE MEMBRANES.
THE PH OF THE REVERSE OSMOSIS PRODUCT (PURIFIED WATER) WATER
WILL TYPICALLY BE 1 OR 2 PH UNITS LOWER THAN THE FEEDWATER PH.
A LOW PH CAN DAMAGE SOME PLUMBING MATERIALS SUCH AS COPPER
PIPING.

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CONCENTRATE WATER (DRAIN) CONNECTION
Locate the 1/2” port on the right side of the system labeled
“CONCENTRATE” (drain). Run the drain line to an open drain in a free
and unrestricted manner (no back pressure).
ANY RESTRICTIONS OR BLOCKAGE IN THE DRAIN LINE
CAN CAUSE BACK PRESSURE, WHICH WILL INCREASE
THE SYSTEM’S OPERATING PRESSURE. THIS CAN
RESULT IN DAMAGE TO THE SYSTEM’S
MEMBRANES AND COMPONENTS.
ELECTRICAL
The Hydroid system is 120 VAC 60 Hertz Single Phase, 10.6 amps, and
is equipped with an eight–foot electrical cord.
Ensure that the electrical circuit supplying the system is compatible with the requirements of
the Hydroid.
TO REDUCE THE RISK OF ELECTRICAL SHOCK, THE INCOMING POWER
SUPPLY MUST INCLUDE A PROTECTIVE EARTH GROUND.
IT’S RECOMMENDED THAT THE SYSTEM HAVE A DEDICATED POWER
SOURCE
TANK
Hydroid systems may be connected to a bladder tank or a storage tank with a float valve. The
float valve shuts off the system when the tank is full, and opens when the water level in the
tank drops. Bladder tanks and storage tanks with float valves can be obtained by your local
dealer or distributor. If a storage tank with float valve is to be used, install it at this time.
THE SYSTEM MUST BE OPERATED ON PRE-FILTERED WATER ONLY.

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FEED WATER AND OPERATION SPECIFICATIONS
Nothing has a greater effect on a reverse osmosis system than the feed water quality. If your
system is altered at the site of operation or if the feed water conditions change, please contact
Hydrologic.
BEFORE STARTING THE RO SYSTEM IT IS STRONGLY SUGGESTED TO
OBTAIN AN UP-TO-DATE WATER ANALYSIS OF THE WATER BEING
TREATED. IT IS VERY IMPORTANT TO MEET THE MINIMUM FEED WATER
AND OPERATING REQUIREMENTS OUTLINED IN THIS MANUAL. NOT DOING SO WILL
CAUSE DAMAGE OR FAILURE OF THE SYSTEM COMPONENTS AND MEMBRANES.
DAMAGE TO THE SYSTEM DUE TO OPERATION OUTSIDE OF THE SPECIFICATIONS
OUTLINED IN THIS MANUAL WILL VOID THE MANUFACTURER’S WARRANTY. CHECK
YOUR FEED WATER CHEMISTRY AND, IF NECESSARY, CONSULT WITH HYDROLOGIC
BEFORE START-UP OF THE SYSTEM.
OPERATING LIMITS*
Design Temperature, °F
77
Maximum Turbidity, NTU
1
Maximum Feed Temperature, °F
85
Maximum Free Chlorine, ppm
0
Minimum Temperature, °F
40†
Maximum TDS, ppm
2,000†
Maximum Ambient Temperature, °F
120
Maximum Hardness, gpg
1
Minimum Ambient Temperature, °F
40
Maximum PH (continuous)
10
Maximum Feed Pressure, PSI
85
Minimum PH (continuous)
4
Minimum Feed Pressure, PSI
40
Maximum PH (cleaning 30 minutes)
12
Maximum Operating Pressure, PSI
150
Minimum PH (cleaning 30 minutes)
2
Maximum SDI Rating
<3
†Low temperatures and feedwater quality, such as high TDS levels will significantly affect the systems production capabilities and performance.
Computer projections must be run for individual applications which do not meet or exceed minimum and maximum operating limits for such
conditions.
*If any of the feed water parameters are not within the limits given, consult your local dealer or distributor for assistance.
HIGHER TDS AND/OR LOWER TEMPERATURES WILL REDUCE THE SYSTEM’S
PRODUCTION.

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DESIGN BASIS AND DESIGN NOTES
Design
Configuration
Single Pass
Feedwater Source
TDS < 2000
System Recovery with Recycle
66+% ††††
System Pressure
100 PSI †††
Rejection and Flow Rates†††
Nominal Salt Rejection
95%
PRODUCT (purified water) Flow Rate
2.0+ GPM ††††
CONCENTRATE (drain) Flow Rate
0.80 GPM
CONCENTRATE (drain) Recycle Flow Rate
2.20 GPM
Connections
Feed Connection
1/2” QC
PRODUCT (purified water) Connection
1/2” QC
CONCENTRATE (drain) Connection
1/2” QC
Membranes
Membranes Per Vessel
1
Membrane Quantity
2
Membrane Size
4021
Vessels
Vessel Array
1:1
Vessel Quantity
2
Pumps
Pump Type
Multi–Stage
Motor HP
1
RPM at 60HZ
3450
System Electrical
Controller
S100
High Voltage Service + Amp Draw
120V 1PH 60 HZ ,10.6A
System Dimensions
Approximate Dimensions†† (L x W X H)
29.5” X 18.5” X 18”
Approximate Weight (Wet System)
145 lbs.
††Does not include operating space requirements.
†††System Pressure is variable due to water conditions. PRODUCT (purified water) flow will increase
at a higher temperature and decrease at a lower temperature.
†††† PRODUCT (purified water) flow and maximum recovery rates are based onfeedwater conditions
as stated above. Do not exceed recommended PRODUCT (purified water) flow.

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SYSTEM PURGING / INITIAL START–UP
LEAVE THE SYSTEM UNPLUGGED FROM POWER UNTIL STEP 5
1. Remove dust caps and short tubes from all ports: PRODUCT (purified water - blue tubing),
CONCENTRATE (drain - black tubing), and FEED (inlet - white tubing). Install the provided
white tubing to FEED port for inlet water. Install a red clip (included in system parts bag) on
FEED port to lock tubing in place. Install other end of white FEED line to tap/source water,
or use included garden hose connector (included in system parts bag).
Refer to page 19, step 3 for quick-release port instructions.
2. The open end of the pre-installed ½” black tubing labeled “Flush” (B) goes to a drain.
Now you can begin to slowly turn on the water supply and flush the dust from the carbon
pre-filter, until water stream is clear (approx. 5 min).
3. Re-install System Tubing for Normal Operation: Remove red clip (A), disconnect ½”
black Flush tubing (B) and then push system tubing (C) into carbon pre-filter port. Replace
the red clip to lock system tubing to carbon pre-filter, shown in the picture below.
IMPORTANT: Keep black Flush tubing for future carbon pre-filter flush procedures.

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4. Connect Provided Tubing: PRODUCT (purified water - blue tubing) and CONCENTRATE
(drain - black tubing) to their ports; re-direct the open ends of both the PRODUCT (purified
water –blue tubing) and CONCENTRATE (waste water –black tubing) to drain. Install the
red clips included in systems parts bag. Fully close the blend valve by turning it clockwise.
5. Activate the system purge feature by pressing and holding the Power button on the
controller for 5 seconds. The inlet valve will open and the system will flush continuously.
6. Let the system purge until no bubbles appear in CONCENTRATE (drain water - black
tubing) flow meter (approx. 3-5 min).
7. When the Hydroid system has been purged of air, press the power button momentarily to
turn off the purge feature. The inlet valve will now turn off.
8. Inspect the system for leaks. If no leaks are apparent, the next step is to flush the
Encapsulated Membrane Elements.
9. Turn system on and allow the system to run uninterrupted for at least 30 minutes to flush
the Encapsulated Membrane Elements.
10.After 30 minutes, shut down the system and re-direct PRODUCT (purified water - blue
tubing) to holding tank. Your system is now ready for normal operation.

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Operating Do's and Don'ts
DO
•Change the carbon pre-filter regularly.
•Monitor the system and keep a regular log.
•Run the system at least every 48 hours for one hour or more.
•Always feed the pump with pre-filtered water.
DON’T
•Permit chlorine to enter the feed water (change carbon pre-filter every 75,000 gallons).
•Shut down the system for extended periods (see manual page 25).
•Operate the system with insufficient feed flow or pressure.
•Operate the pump dry.
TO MAINTAIN PROPER PRESSURE, MAXIMUM HORIZONTAL TUBING
DISTANCE TO TANK STORAGE IS 50FT. IMPORTANT! FOR EVERY 5FT
VERTICAL HEIGHT, YOU NEED TO SHORTEN TUBING BY 10FT OF
HORIZONTAL LENGTH. EXAMPLE: IF TUBING NEEDS TO BE INSTALLED 10FT
OFF THE GROUND, TOTAL HORIZONTAL LENGTH MAY NOT EXCEED 30FT.
IF LENGTH EXCEEDS SPECIFICATIONS, PLEASE CONTACT HYDROLOGIC
888-426-5644
USING THE REVERSE OSMOSIS SYSTEM OPERATION LOG PROVIDED ON
PAGE 24 OF THE USER MANUAL, RECORD YOUR SYSTEM’S READING
DAILY FOR A WEEK. AFTER A WEEK, RECORD THE READINGS AT A MINIMUM OF
ONCE A WEEK. IT IS SUGGESTED TO MAKE SEVERAL COPIES OF THIS SHEET FOR
FUTURE USE BEFORE RECORDING INITIAL READINGS. KEEPING AN OPERATION
LOG IS IMPORTANT TO TROUBLESHOOT POSSIBLE TECHNICAL ISSUES.

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IF THE SYSTEM HAS AN ANTI-SCALANT FILTER (OPTIONAL HL 11595), AND
IF THE PRODUCT (PURIFIED WATER) WATER IS USED AS POTABLE WATER,
THE BLEND VALVE MUST REMAIN CLOSED. THIS IS TO AVOID INGESTION
OF ANY CHEMICALS.
FLUSHING THE SYSTEM
As time progresses, the efficiency of the membrane will decline. In general, the salt rejection
does not change significantly until one or two years after installation when operated on properly
pre-treated feed water. The PRODUCT (purified water) flow rate will begin to decline slightly
after one year of operation but can be extended with diligent flushing and cleaning of the
membranes. The system should be flushed regularly to remove sediment from the surface of
the membranes. Hydroid systems are pre-programmed to flush for 5 minutes upon tank full
shut down. Should yourapplication require another configuration, the S-100 controller provides
several flush types, modes, and times to select from. Please contact Hydrologic for more
information.

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MEMBRANE INSTALLATION, REMOVAL AND REPLACEMENT
Installation and replacing membranes are an easy process if you have the proper information
at hand. Please refer to the following instructions when removing and replacing membrane
elements:
ALL PRESSURE GAUGES MUST READ ZERO BEFORE PROCEEDING.
BEFORE ATTEMPTING, DISCONNECT THE POWER FROM THE SYSTEM
AND BLEED ALL WATER PRESSURE FROM THE SYSTEM.
1) Perform this procedure one housing at a time to preserve the correct connections as
you replace the membranes (To remove Membrane 1, Carbon pre-filter must be
removed first).
2) Select the housing to be replaced.
3) Disconnect the fittings from the housing by simultaneously:
a) Pushing the grey collar toward the housing.
b) Pulling the tube from the collar.
4) Remove the screw from the clamp and twist the top clamp to un-hook the clamp.
5) Install new housing and re-connect tubing.
6) To start-up the system, please refer to the System Purging/Initial Start-Up (pages 15-
17) section of this User’s Manual.
THE MEMBRANES MUST BE FLUSHED FOR AT LEAST 30 MINUTES.
DISCARD ALL OF THE PRODUCT (PURIFIED WATER) THAT IS PRODUCED
DURING THE FLUSH PERIOD.

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ENCAPSULATED MEMBRANE ELEMENTS
Hydroid Reverse Osmosis Systems are equipped with Hydroid Series Encapsulated
Membrane Elements with Ultra Low Energy Membranes. Encapsulated Membrane Element
performance characteristics are listed below.
ULTRA LOW ENERGY MEMBRANE
▪Membrane Type: Polyamide Thin –Film Composite
▪pH Range, Short Term Cleaning (30 Min.): 1 –13
▪Maximum Operating Temperature: 85°F (43°C)
▪Maximum Feed Silt Density Index (SDI): ≤3
▪Maximum Operating Pressure: 150 psi (10 bar)
▪Chlorine Tolerance: 0 ppm
▪pH Range, Continuous Operation*: 2 –11
▪Maximum Feed Flow Rate (gpm): 4.0” = 5
*Maximum temperature for continuous operations above pH10 is 95°F (35°C)
Product Specifications
Part Number
Description
Applied Pressure psi / bar
PRODUCT Flow Rate gpd / m3/d
Nominal Salt Rejection (%)
HL 11590
MEMBRANE
100 / 5.52
1000 / 3.79
95
Warranty Evaluation Test Conditions: PRODUCT (purified water) flow and salt rejection based on the following test conditions –550 ppm,
filtered and dechlorinated municipal tap water, 77°F / 25°C, 15% recovery and the specified operating pressure. Minimum salt rejection is 95%+.
PRODUCT (purified water) flows for warranty evaluation may vary +/–20%. Maximum pressure drops at 13 psi / 0.9 bar.
Under certain conditions, the presence of free chlorine, chloramines and other oxidizing agents will cause premature membrane failure. Since
oxidation damage is not covered under warranty, the manufacturer recommends removing all oxidizing agents by pretreatment prior to membrane
exposure. Please contact the manufacturer or your supplier for more information.
Do not use the initial PRODUCT (purified water) for drinking water or food preparation. Keep elements moist at all times after initial wetting. To
prevent biological growth during prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution.
Rinse out the preservative before use. For membrane warranty details, contact the manufacturer or your supplier for more information.
If operating limits and guidelines given in this PRODUCT (purified water) specification sheet are not strictly followed, the warranty will be null and void.
The customer is fully responsible for the effects of incompatible chemicals and lubricants on elements. Use of any such chemicals or lubricants will
void the warranty. These membranes may be subject to drinking water application restrictions in some countries: check the application status before
use and sale. The use of this PRODUCT (purified water) in and of itself does not guarantee the removal of cysts and pathogens from water. Effective
cyst and pathogen reduction are dependent on the complete system (solution) design and the operation and maintenance of the system.
No freedom from infringement of any patent owned by the manufacturer or others is to be inferred. Because use conditions and applicable laws may
differ from one location to another and may change with time, Customer is responsible for determining whether PRODUCT (purified water) and the
information in this document are appropriate for customer’s use and for ensuring that customer’s workplace and disposal practices are in compliance
with applicable laws and other governmental enactments. The claims made may not have been approved for use in all countries. The manufacturer
assumes no obligation or liability for the information in this document. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.