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US Water Systems 224-DFWHRO Series Manual

Whole house ro system
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US Water Defender Whole
House RO System
224-DFWHRO-XXXX

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Summary of Contents for US Water Systems 224-DFWHRO Series

  • Page 1 US Water Defender Whole House RO System 224-DFWHRO-XXXX...

  • Page 2: Table Of Contents

    Table of Contents Unpacking / Inspection ....................3 Safety Guide ...................... 3 Proper Installation ..................... 4 Component Identification ..................6 Specifications ......................12 Rejection, Recovery & Flow Rates ................17 System Connections, Requirements and Guidelines ..........18 Electrical Connections ..................... 22 Pre-Filtration ......................

  • Page 3: Unpacking / Inspection

    Be sure to check the entire RO system for any shipping damage or parts loss. Also note damage to the shipping cartons. Contact US Water Systems at 1-800-608-8792 to report any shipping damage within 24 hours of delivery. Claims made after 24 hours may not be honored.

  • Page 4: Proper Installation

    • RO membranes will degrade in the presence of chlorine or chloramines. In these condi- tions, it is wise to consider purchasing a carbon filter system with a chlorine reducing media. Contact US Water Systems for chlorine and chloramine removal equipment. Need help? 1.800.390.5936...
  • Page 5 • Warning: Discard all unused parts and packaging material after installation. Small parts remaining after the installation could be a choke hazard. Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 6: Component Identification

    Component Identification Solenoid Valve - Turns ON/OFF Feed Pre-Filter Pressure Gauge - Monitors Water Supply when the tank input cir- Feed Water Pressure prior to the Pre- cuit is opened. Filter 5 Micron Sediment Pre-Filter - Re- Pump Pressure Gauge - Monitors the moves Sediment from the Feed Water Membrane/Pump pressure during op- eration.
  • Page 7 Computer Control - The US100 Con- Concentrate/Waste Valve - Controls trols ON/OFF Function as well as Fail the amount of Concentrate Water go- Safe Switches. ing to the drain for waste. Recycle/Recirculation Valve - Controls Pump and Motor - Boosts the Feed the amount of Concentrate Water that Water Pressure to the Membranes.
  • Page 8 Throttle Valve - Adjusts the Boost 11. Concentrate Flow Meter - Monitors the Pressure to the Membranes. WARN- amount of Concentrate Water going to ING! Do not exceed 150 psi. drain. 10. Permeate/Product Flow Meter - Mon- 12. Recycle/Recirculation Flow Meter - itors the amount of Permeate Water Monitors the amount of Concentrate going to the storage or distribution sys-...
  • Page 9 13. Low Pressure Switch - Shuts the sys- 15. Power Supply Cord tem down as a fail safe in a Low Feed Water Pressure Condition. This pres- sure switch is in the RO Controller. 16. Injection Pump Electrical Connection 14. Membrane Pressure Vessels - Holds the Membranes.
  • Page 10 17. Tank Level or Pressure Shutoff and 19. UV Light - Used to destroy bacteria Pre-treatment Lockout Connections. that may be in the water prior to the WARNING! This input is a NO VOLT- plumbing system. (Final Connection to AGE dry contact. DO NOT apply Plumbing Distribution System marked voltage to this input! as "a")
  • Page 11 20. UV Controller - Monitors the UV light performance and bulb life. Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 12: Specifications

    Specifications Table 1. DFWHRO-2000 Design Vessels Configuration Single Pass Vessel Array Feed Water Source City or Well Water Vessel Quantity Standard Recovery Rate 31.5% Recovery with Concentrate Recycle Up to 75% Rejection and Flow Rates Pumps Nominal Salt Rejection % 98.5 Pump Type Multi-Stage...
  • Page 13 Table 2. DFWHRO-4000 Design Vessels Configuration Single Pass Vessel Array Feed Water Source City or Well Water Vessel Quantity Standard Recovery Rate Recovery with Concentrate Recycle Up to 75% Rejection and Flow Rates Pumps Nominal Salt Rejection % 98.5 Pump Type Multi-Stage Permeate Flow* gpm (lpm) 2.78 (10.52)
  • Page 14 Table 3. DFWHRO-6000 Design Vessels Configuration Single Pass Vessel Array 1:1:1 Feed Water Source City or Well Water Vessel Quantity Standard Recovery Rate Recovery with Concentrate Recycle Up to 75% Rejection and Flow Rates Pumps Nominal Salt Rejection % 98.5 Pump Type Multi-Stage Permeate Flow* gpm (lpm)
  • Page 15 Table 4. DFWHRO-8000 Design Vessels Configuration Single Pass Vessel Array 1:1:1:1 Feed Water Source City or Well Water Vessel Quantity Standard Recovery Rate Recovery with Concentrate Recycle Up to 75% Rejection and Flow Rates Pumps Nominal Salt Rejection % 98.5 Pump Type Multi-Stage Permeate Flow* gpm (lpm)
  • Page 16 *Product Flow Rates are based on equipment test parameters. ** Does not include operating space requirements Test Parameters: 550 TDS Filtered (5 Micron), De-Chlorinated, Softened City Feed Water, 35 psi (2.41 bar) Feed Pressure, 150 psi (10.34 Bar) (HF4 Membranes), 70 psi (4.83 bar) Operating Pressure, 77 Degrees F (25 Degrees C), Recover as stated, 7.0 pH.

  • Page 17: Rejection, Recovery & Flow Rates

    Rejection, Recovery & Flow Rates The US Water Systems Defender reverse osmosis system is designed to produce per- meate water at the capacities indicated by the suffix in the systems name under the conditions listed above. For example, the DFWHRO-4000 produces 4000 gallons per day of permeate water at the listed operating test conditions.

  • Page 18: System Connections, Requirements And Guidelines

    System Connections, Requirements and Guidelines PLUMBING The membranes and high pressure pumps used on Defender systems require a continu- ous flow of water with a minimum feed pressure of 35 psi, not to exceed 105°F while the system is running. FEED WATER CONNECTION Locate the 1"...
  • Page 19 CONCENTRATE (WASTE WATER) CONNECTION Locate the 1/2" tubing labeled concentrate and attach/convey to a drain. Run the concentrate line to an open drain in a free and unrestricted manner (no back pres- sure). It is recommended that an air gap be maintained on the drain line to prevent possible bacterial contamination.
  • Page 20 RE-PRESSURIZATION PUMP CONNECTION Apply Teflon tape to the supplied 1" stainless steel nipple and install into the bulk- head located at the bottom of the atmospheric storage tank. Tighten using two pairs of channel locks. Then install the supplied ball valve using the same method. Locate the 1"...
  • Page 21 PLUMBING DISTRIBUTION SYSTEM CONNECTION Locate the 1" male threaded connection on the UV light chamber and connect piping to the plumbing distribution system. Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 22: Electrical Connections

    Electrical Connections Main System Power The main power on the Defender system is available in 220 volt, 60 Hertz, 1 Phase. Each Defender system is equipped with a 5 foot electrical cord. This can be hardwired in a disconnect box or an outlet box can be installed that matches the cord end for the respective voltage.

  • Page 23: Pre-Filtration

    RO system to ensure longevity and that damage will not occur to the unit. A water test of the feed water is used to determine the proper pre-treatment equip- ment. Contact US Water Systems for help determining what pre-treatment equipment is required.

  • Page 24: Uv Light Sleeve And Bulb

    UV Light Sleeve and Bulb The Defender reverse osmosis systems UV light will not have the Quartz sleeve and bulb installed. This must be done on site. Remove the quartz sleeve from its packaging, being careful not to touch the length with your hands.
  • Page 25 Tighten the captive ground screw to the ground lug on the UV reactor to ensure proper grounding. IMPORTANT! Make sure the quartz sleeve is installed properly and make sure there are no leaks before installing the bulb and powering the UV light. Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 26: Membrane Element

    Membrane Element Membrane Type : Polyamide Thin-Film Composite pH Range, Short Term Cleaning (30 Min): 1-13 Maximum Operating Temperature (°F / °C): 113 / 45 Maximum Feed Silt Density Index (SDI): 5 Maximum Operating Pressure (psi / bar): 400 / 27.58 Chlorine / Chloramine Tolerance (ppm): 0 pH Range, Continuous Operation* : 2-11 *Maximum temperature for continuous operations above pH 10 is 95°F / 35°C...
  • Page 27 Avoid any abrupt pressure or cross flow variations on the spiral elements during start up, shutdown, cleaning or other sequences to prevent possible membrane damage. During start up, a gradual change from a standstill to operating state is recommended as follows: •...

  • Page 28: Tank Level And Pre-Treatment Lockout Wiring

    Tank Level and Pre-treatment Lockout Wiring The Defender system is equipped with two switch closure circuits that control the RO system ON/OFF function. This is a "no voltage" switch closure circuit (dry contact). Tank Level Input There is a switch closure circuit used to turn some RO systems on and off when an atmospheric tank float is installed.
  • Page 29 Once the float is wired, be sure to remove the shipping ties securing the float. Adjust the float accordingly for your system. Pre-treatment Lockout Wiring In some applications, there are backwashing filter units or softeners used as pre-treat- ment for the RO module. Some of these pre-treatment units may be equipped with a "lockout"...
  • Page 30 The wires above show color coatings. However, the colors do not matter. There is no voltage to these wires. They just need to be wired in a loop that can open or close when necessary. BE SURE to use the Normally Closed (circuit opens when regeneration / backwash starts and closes at the end of all cycles) wires only on the Backwashing Filter or Softener output switch.

  • Page 31: Anti-Scalant Filling And Settings

    The table below can be used in 90% of the applications. However, in some rare cases, the US Water Systems Specialist will have specific guide- lines. If this is the case, the US Water Specialist will make it known. Use the following procedure when filling the tank: Fill the tank with 5 gallons of clean water (preferably RO water).
  • Page 32 Need help? 1.800.390.5936 www.uswatersystems.com...
  • Page 33 The anti-scalant pump will operate when the RO is running. This pump should self prime during the start up procedure. The solution tank can be topped off with 10 more gallons of mixed solution once the RO system is online. Be sure to mix the solution correctly when topping off the solution tank.

  • Page 34: Ro Start-Up

    RO Start-Up Adjusting the RO System Flow Rates Be sure the pre-treatment systems have been flushed and put in service. If anti-sca- lant is being used, be sure to confirm the dose and mix of the solution with the sales rep before starting the system.

  • Page 35: 75% Recovery System Adjustment

    WARNING: NEVER EXCEED THE MAXIMUM PRESSURE RATING OF YOUR SYS- Adjust the pump throttle valve and concentrate valve until the correct flow is ach- ieved. For example, DFWHRO-4000 should be adjusted until it produces about 4000 GPD or 2.78 GPM of permeate (product water) at 77°F. The designed flow may be achieved below 150 PSI but it is IMPORTANT not to exceed 150 PSI on the System Pressure when adjusting.
  • Page 36 IMPORTANT! Be sure to flush the storage tank as the initial water the RO makes during adjustment is not up to quality. This can usually be done by letting the tank fill for about 50 gallons and emptying the tank twice or directing the permeate water to a drain until the water quality stabilizes.

  • Page 37: Operating Do's And Don'ts

    Operating Do's and Don'ts • Change the cartridge filters regularly • Monitor the system and keep a daily log • Run the system, as much as possible, on a continuous basis • Adjust the system recovery to the recommended value •...

  • Page 38: Low Pressure Switch

    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 30 PSI or more. NOTE: If you notice the pressure fluctuating and the system cycling off and on, turn the system off and ensure that proper feed flow and pressure are available to the system.

  • Page 39: Adjusting Throttle Valve

    Adjusting Throttle Valve To decrease the pressure, turn the the handle clockwise. To increase the pressure, turn the handle counterclockwise Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 40: Membrane Removal & Replacement

    Membrane Removal & Replacement Replacing membranes in the pressure vessels is an easy process if you have the proper information and tools at hand. Please refer to the following instructions when removing and replacing membrane elements. WARNING: ALL PRESSURE GAUGES MUST READ ZERO BEFORE PROCEEDING. BEFORE ATTEMPTING, DISCONNECT THE POWER FROM THE SYSTEM AND BLEED ALL WATER PRESSURE FROM THE SYSTEM! Remove the end caps from the top of the membrane housings.
  • Page 41 Replacing the Membrane Element WARNING: THE BRINE SEAL MUST BE IN THE SAME POSITION FOR EACH MEM- BRANE ELEMENT HOUSING. MARK EACH HOUSING PRIOR TO REMOVING THE MEMBRANE ELEMENTS. THE BRINE SEAL IS A RUBBER SEAL THAT PROTRUDES ON ONE SIDE OF THE MEMBRANE AND IS ALWAYS ON THE FEED SIDE OF THE MEMBRANE ELEMENT.
  • Page 42 Flushing the System The system should be flushed weekly to remove sediment from the surface of the mem- branes. To manually flush the system, follow the steps below: The system must be operating during the flush procedure. Fully open the concentrate valve. Allow the system to run for 10 to 20 minutes.

  • Page 43: Membrane Flow Overview

    Membrane Flow Overview Need help? 1.800.390.5936 www.uswatersystems.com...
  • Page 44 Need help? 1.800.390.5936 www.uswatersystems.com...
  • Page 45 Need help? 1.800.390.5936 www.uswatersystems.com...
  • Page 46 Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 47: Temperature Correction Factors For Membranes

    Temperature Correction Factors For Membranes Find the temperature correct factor (TCF) from the table below. Divide the rated permeate flow at 77°F by the temperature correction factor. The result is the permeate flow at the desired temperature. Temper- Tem- Temper- Tem- Temper- Tem-...
  • Page 48 If a system is rated to produce 5 GPM of permeate water at 77°F, the same system will produce more water at a higher temperature. It will also produce less water at a lower temperature. Use the temperature correction table to obtain the correct flow. Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 49: Replacing The Lamp

    Replacing the Lamp Ensure the system is powered down and the UV controller is turned off. Remove the lamp connector from the reactor by pushing the lamp connector in and turning it 1/4 turn counter-clockwise. Disconnect the lamp connector from the lamp. CAUTION: The lamp may be hot.

  • Page 50: Cleaning/Replacing The Quartz Sleeve

    Cleaning/Replacing the Quartz Sleeve Depending on the water quality, the quartz sleeve may require periodic cleaning. At a minimum, the quartz sleeve should be cleaned on an annual basis. The following steps outline a basic cleaning procedure. If a bypass assembly is installed, shut the inlet valve off to prevent water flow through the system.

  • Page 51: System Flow Diagram

    System Flow Diagram Need help? 1.800.390.5936 www.uswatersystems.com...
  • Page 52 Need help? 1.800.390.5936 www.uswatersystems.com...
  • Page 53 Need help? 1.800.390.5936 www.uswatersystems.com...
  • Page 54 Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 55: Typical System Layout

    Typical System Layout Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 56: Controller Programming Options

    Controller Programming Options The US Water Systems Series US100 controller is a state of the art control system for commercial and industrial reverse osmosis systems. The Series US100 combines features that have not previously been available in one compact unit.
  • Page 57 FRONT PANEL CONTROLS AND INDICATORS • LED DISPLAY - Shows status of system and water quality • STATUS LED - Shows operating status of unit • WATER QUALITY LED - Green if OK, Red if above limit • POWER KEY - Places controller in operating or standby mode •...
  • Page 58 SYSTEM OPERATION The unit has 2 modes of operation, a standby mode and an operating mode. In the standby mode, the unit is effectively off. All outputs are turned off and the display shows OFF. In the operating mode, the unit operates automatically. All inputs are monitored and the outputs are controlled accordingly.
  • Page 59 RO Start Delay When the controller is placed in the operating mode or restarts from a shut down condi- tion, the inlet valve will open and a 5 second time delay will start. During the delay, - - - will show on the water quality display. After this delay, the RO pump will start. The water quality display will now show the current water quality.

  • Page 60: Electrical Schematic

    Electrical Schematic Need help? 1.800.390.5936 www.uswatersystems.com...

  • Page 61: Glossary Of Terms

    Glossary of Terms The RO system is designed to operate at specified flow rates to ensure longevity of the membranes and performance. It is best to set the RO system to operate at its designed flow rates but, in some cases due to feed water temperature and TDS ( total dissolved solids) levels, the designed flow rates may not be achievable.
  • Page 62 • Concentrate Recycle Valve: This is the valve used to control the amount of concen- trate water that is returned to the pump to be recycled through the system. • Flux Rate: The rate of flow across the membranes in the RO system. This rate must be maintained or contaminants can precipitate on the membranes and cause them to fail prematurely.

  • Page 63: Warranty

    US WATER SYSTEMS, INC. ship. No warranty is made with respect This warranty does not apply to any com-...
  • Page 64 TO OBTAIN WARRANTY SERVICE, CALL TAL OR CONSEQUENTIAL DAMAGES SO OR WRITE: US WATER SYSTEMS, INC. THE ABOVE LIMITATION MAY NOT AP- 1209 COUNTRY CLUB ROAD INDIANAP- PLY TO YOU. THIS WARRANTY GIVES OLIS, IN 46234 (800) 608-USWA. ANY YOU SPECIFIC LEGAL RIGHTS, AND...

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