PWS - WTS-400-IOM-EN-890000-874.pdf

400 SERIES

Reverse-osmosis water treatment system

HYDROTRUE® WATER TREATMENT SYSTEMS

Installation, Operation, and Maintenance Manual

Read and save these instructions ii WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Warnings and cautions

WARNING

Attention installer Read this manual before installing, and leave this manual with product owner. This product must be installed by qualified plumbing, HVAC and/or electrical contractors. Installation must be code approved.

Disconnect electrical power Disconnect electrical power before installing supply wiring or performing service or maintenance procedures on any part of the system. Failure to disconnect electrical power could result in fire, electrical shock, and other hazardous conditions.

These hazardous conditions could cause property damage, personal injury, or death.

Contact with energized circuits can cause property damage, severe personal injury, or death as a result of electrical shock or fire. Do not remove pump cover, or subpanel access panels until electrical power is disconnected.

Follow the shutdown procedure in this manual before performing service or maintenance procedures on any part of the system.

Electric shock hazard If the reverse-osmosis system starts up during maintenance, severe bodily injury or death from electric shock could occur.

To prevent such start-up, follow the procedure below before performing service or maintenance procedures on this reverse-osmosis system:

1. Use Vapor-logic® keypad/display to change control mode to Standby.

2. �Shut off all electrical power to the reverse-osmosis system using field-installed fused disconnect, and lock all power disconnect switches in OFF position.

3. Close field-installed manual water supply shut-off valve.

Tipping hazard Before installing the 400 series reverse-osmosis system, use supplied leg brackets or lag points to permanently fix the system to the floor and/or adjacent building structure. Failure to install according to instructions can result in serious injury or death. See page 18 for instructions.

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NOTICE

Health risks The user is responsible for operating and maintaining the provided system in accordance with city, state, and federal regulations.

Please follow local health and state codes for regulations around application of water treatment systems. There is an associated risk with all water sources and the potential for bio growth, including bacterium that causes Legionnaires disease.

DriSteem water treatment systems, products, and components are designed, with consideration, to reduce the risk of Legionnaires disease and other similar situations. The water treatment design takes into account lower operating temperatures, minimization of stagnant water through mechanical design and flush cycles, and provides an option for UV disinfection of the RO storage water.

Inadequate installation, operation or maintenance of the water system can support the growth of bacterium.

A competent environmental, health, and safety representative should identify the risks of any interacting systems. As deemed appropriate, plans and controls should be implemented at the facility to help mitigate risk.

iiiWATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Warnings and cautions

CAUTION

Operate system at above-freezing temperatures.

Operating the system at temperatures below freezing can damage the system or cause other property damage.

Maintain pumping and water treatment equipment.

Inadequately maintained pumping and water treatment equipment can cause the system to fail. Refer to the maintenance section of this IOM for recommended maintenance.

Do not install the system using steel or galvanized-steel piping and joints.

Steel and steel-galvanized piping and joints can corrode and cause system damage. Use PVC or stainless steel piping and joints when assembling system.

Follow all instructions in this manual to maintain product warranty.

Damage to pump Do not close the valve on the outlet of the pump. Do not operate the pump below minimum combined flow rate (permeate + concentrate + recirculating).

Models 401-402: 4 gpm (15.2 L/min) Models 403-412: 6 gpm (22.7 L/min)

Team lift required

Team lift is required when replacing the membranes. Membrane banks are heavy. Do not try to lift without assistance.

Wear steel-toed shoes and have adequate room for maneuvering when servicing. Never lean membrane banks vertically when removed from system. Failure to do so may damage the system or result in injury. See maintenance information on page 56.

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WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

TABLE OF CONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

OVERVIEW

System dimensions System clearances Water quality and component overview pump operation for the storage tank Components overview

Reverse osmosis station System operation temperature

Pressurized RO holding tank Atmospheric RO holding tank

Placing components

INSTALLATION

Piping and instrumentation arrangement Interconnecting tubing requirements Components and tools needed System piping

Water pre-treatment Dechlorinator Duplex water softener RO station and pressurized RO holding tank RO station and atmospheric holding tank Wiring Electrical installation Service disconnect Preventing electrical noise Grounding requirements

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Table of contents vWATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Table of contents

ATTENTION INSTALLER

Read this manual before installing.

Leave manual with product owner.

DriSteem® Technical Support 800-328-4447

WHERE TO FIND MORE INFORMATION

Our website:

The following document is available on our web site: www.dristeem.com

• Water treatment system catalog

• Vapor-logic controller installation and operation manual

DriCalc® sizing and selection software:

DriCalc, our software for system sizing and selection, can be ordered at our web site.

Call us at 800-328-4447 Obtaining documents from our web site or from DriCalc is the quickest way to view our literature, or we will be happy to mail literature to you.

Keypad/display and troubleshooting The Vapor-logic Installation and Operation Manual, which was shipped with the system, is a comprehensive operation manual. Refer to it for information about using the keypad/display and Web interface, and for troubleshooting information.

Download DriSteem literature Most DriSteem product manuals are available our website: www.dristeem.com

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OPERATION

Start-up checklist Start-up

Start-up procedure Sequence of operation System operation Permeate tank pressure loss:

0.5" Polyethylene 0.5" Stainless Steel Tube 0.5" Polyvinyl Chloride (PVC) Pipe

0.75 Stainless Steel Tube

0.75" Polyvinyl Chloride (PVC) Pipe 1.0" Stainless Steel Tube

Vapor-logic keypad/display Status screen

Diagnostics and Alarms Modbus, BACnet, LonTalk interoperability

MAINTENANCE

When to change sediment prefilter cartridge Changing cartridge filters Preserving procedure Flushing out preservative/restart procedure

Membrane removal Tools

Membrane replacement Gauges and valves Pre-treatment Pressurized RO holding tank

Water quality test strips

TROUBLESHOOTING

REPLACEMENT PARTS

RO system Subpanel Atmospheric tank

GLOSSARY

WARRANTY

Learn More

6 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

System dimensions

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Note: System components and configuration may vary to meet application requirements.

Table 6-1:

DriSteem 400 series RO system dimensions

Model

Dimensions

A B C* D inches mm inches mm inches mm inches mm

401 55 1397 24 610 28 711 28 711

402 55 1397 24 610 28 711 28 711

403 55 610 24 610 28 711 28 711

404 55 610 24 610 28 711 28 711

406 80 2032 24 610 37 940 37 940

408 72 1829 30 762 37 940 37 940

412 90 2286 30 762 46.5 1181 46 1181

*Typical storage tank pairing. Larger tank available (See Table 16-1).

FIGURE 6-1: DRISTEEM 400 SERIES REVERSE-OSMOSIS SYSTEM OVERVIEW (SEE TABLES 6-1 AND 6-2)

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L (DIA)

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OM-7816

8" (2 03 mm)

56" (1422 mm)

10" (254 mm)

26"

(660 mm)

63" (1600 mm)

>24" (6 10 mm) m in Water drain

Water drain

Table 6-2:

Atmospheric RO holding tank specifications

Tank model

Dimensions

I J K L inches mm inches mm inches mm inches mm

AT-165 56 1422 35 889 65 1651 31 787

AT-300 61 1537 40 1003 88 2235 35.5 902

7WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

System clearances

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OM-7817

FIGURE 7-1: DRISTEEM 400 SERIES REVERSE-OSMOSIS SYSTEM CLEARANCES

8" (203 mm)

8" (203 mm)

36" (915 mm)

8" (203 mm)

48" (1220 mm)

>24" (610 mm)

Valves and gauges not included

Valves and gauges not included

Valves and gauges not included

Table 7-1:

RO membrane specification

Element Configuration Spiral wound, FRP wrapping

Typical Ionic Rejection (Nominal) 99.40%

Membrane Type Thin film composite

Membrane material Polyamide (PA)

Effective Membrane Area 85 ft2

Permeate flow rate 2,400 GPD

Membrane length 40"

Membrane Diameter 3.9"

Maximum operating pressure 600 psig

Maximum feed flow rate 18 gpm(1)

Test conditions: 2,000 ppm NaCl at 225 psig applied pressure, 15% recovery, 77°F, pH 6.5-7.0, permeate flow rate for each element may vary +25%/-15%

(1) Per membrane manufacturer specification, not total system specification.

NOTE: See Tables 16-1 (pressurized) and 17-1 (atmospheric) for specifications.

8 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

System overview

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OM-8220

FIGURE 8-1: DRISTEEM 400 SERIES REVERSE-OSMOSIS SYSTEM CONNECTION POINTS

RO permeate to end user

Water inlet

Electrical field connection

Drain

See Tables 13-1 and 14-1 for specifications.

9WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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WATER QUALITY

Supply water must be softened and dechlorinated before being supplied to the reverse-osmosis system. If water is not properly dechlorinated or softened, it can damage reverse osmosis membranes. If you are not installing DriSteem water pretreatment components, verify that your water has had chlorine removed and is softened.

DECHLORINATOR REMOVES CHLORINE

The dechlorinator removes chlorine from supply water before it enters the reverse osmosis membranes.

Supply water enters the dechlorinator and passes through a charcoal sieve, which neutralizes chlorine before entering the water softener. The dechlorinator is automatically backflushed whenever a programmed calendar date or water meter usage is met. During automatic backflushing, clean water flows through the dechlorinator to rinse the charcoal, and then flows to drain (tank dechlorinators only). See the Pre-treatment Installation, Operation, and Maintenance Manual for more information.

WATER SOFTENER REMOVES CALCIUM, MAGNESIUM, AND IRON

The water softener removes dissolved hard water minerals from supply water before it enters the reverse osmosis membranes.

Water passes from the dechlorinator into the softener where dissolved minerals are removed by an ion-exchange process. Softened water exits through a water meter to enter the reverse osmosis membranes. When the water meter flow setpoint is satisfied, the softener will take brine from the brine tank to regenerate the resin. Water will be rejected to drain during this period of rinsing. See the Pre-treatment Installation, Operation, and Maintenance Manual for more information.

CAUTION

Water supplied to the reverse-osmosis system that does not meet the required water quality standards will cause premature component failure and void the DriSteem warranty.

REVERSE OSMOSIS MEMBRANES ELIMINATE REMAINING MINERALS AND

ORGANICS

Dissolved minerals and organics must be eliminated from the water in order to keep system components operating properly. Potable water passes through a dechlorinator and duplex water softener to take out chlorine and hard water deposits. The softened water enters the RO station, then flows through a 5 micron filter cartridge. Thereafter, a multi-stage pump pressurizes the water to approximately 125 psig (860 kPa), depending on the quality of water and the desired flow. Then, water is forced to cross a reverse-osmosis membrane, which removes most dissolved minerals. The water is now purified and contains very few minerals (typically less than 10 ppm) and is then stored in the pressurized storage tank. A portion of the rejection water may be recirculated;

the rest, which is saturated with minerals, is sent to the drain.

COMPONENT OVERVIEW

Your system may include all or some of the following components.

• Water pretreatment components

• Dechlorinator (tank style floor mount recommended on all sizes, cartridge style wall mount available for RO models 401 and 402)

• Single or duplex water softener and brine tank

• Atmospheric RO holding tank with UV sterilization and booster pump

Important:

• System pressure is a variable. It is important to adjust the pressure to get the correct permeate and concentrate flows. The exact value of the pressure is not important.

• Permeate flow will increase at higher temperature.

CAUTION

Damage to pump Do not close the valve. Do not operate the pump below minimum combined flow rate (permeate + concentrate + recirculating).

Models 401-402: 4 gpm (15.2 L/ min) Models 403-412: 6 gpm (22.7 L/min) https://d2tsmyh31fn7w8.cloudfront.net/public-documents/docs/iom/water-treatment/WTS-IOM-EN.pdf https://d2tsmyh31fn7w8.cloudfront.net/public-documents/docs/iom/water-treatment/WTS-IOM-EN.pdf

10 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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Water quality and component overview

SCALE

Scale occurs when the solubility of the dissolved solids increases above the solubility limit. In reverse osmosis, this occurs by concentrating up the solids.

For example, 50% recovery of the water doubles the concentration of solids in the concentrate stream. The most common scaling components are: hardness, carbonates, sulfates and silica.

Scale control comes into play when we want to increase the life of the membrane but limit the wastewater we are sending out. This will help operators manage their operating expense as it relates to membranes and water. Scale control can be influenced by temperature, recovery rate(decreasing), ion exchange for removal of hardness, pH (acid addition), and/or anti-scalant (polymer based). If pretreatment is not desired, cleaning chemicals can be used as a means to remove existing scale from membrane surfaces.

Solubility is the ability of a substance (dissolved solids) to form a solution with a solvent (water). Insolubility occurs when the maximum threshold of the solvent has been overcome with existing solids for a given condition.

NON-SCALE

Non-scale foulants can also be a concern for the longevity of RO membranes.

These will lower the permeate production and decrease the salt rejection.

These foulants are usually made up of bacteria, turbidity (clay), silica or total suspended solids. The RO system has requirements around incoming turbidity, bacteria, and Slit Density Index (SDI). The system will need further pretreatment, if these exist. The typical technologies are cartridge filtration, media/oxidative filtration, ultrafiltration,or anti-foulant chemicals. For upstream biofouling, disinfection technologies can be applied. Chlorination is the most common but needs to be removed prior to the RO system to prevent damage.

UV radiation can also be used to kill bacterial cells. No matter what foulant is present, it should be verified that the pretreatment methodology is effectively removing the foulant.

MEMBRANE DEGRADATION

Membrane degradation can occur from oxidants such as free chlorine or chloramines. These chemicals are typically in source water to protect water supplies from harmful bacteria. However, these active oxidants will attack the membrane, polyamide, surface and begin to decrease the membranes ability to reject salts. There is some tolerance to chlorine attack and depends on specific membrane being used. The typical tolerance is 200-1000 ppm-h of chlorine. Once membranes have gone beyond threshold they will not meet desired permeate conditions and will need to be replaced.

11WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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STORAGE TANKS

RO systems and the subsequent systems that are fed by RO permeate require a storage tank to be included in the design. The main reasons for this are to allow for a buffer for when the RO system first starts up and not sending water to the tank, to allow for maintenance intervals on the RO while maintaining downstream equipment fed, to prevent backflow to the RO system and potentially damage the membranes/system, and to handle large peak loads that have smaller average flow rates.

PUMP OPERATION FOR THE STORAGE TANK

Forwarding pumps are required to get the atmospheric permeate to the end user. Most systems require a minimum pressure of water supply to operate and the most common method for commercial applications is to use a pump. The forwarding pump system we use has a recirculation function as well to keep the tank water moving and to treat it with UV.

Pressurized storage tanks use a bladder as the motive force. The opposite side of the bladder should be charged with air. The water capacity in these tanks is less than total capacity since there is air occupying some of the space.

UV DISINFECTION

UV radiation is used to help prevent the propagation of bacterial and viral growth. Stagnant water is a non-ideal situation and can cause growth and for this reason we can use UV technology to help mitigate that risk. If the tank gets contaminated with solids, we have decrease the effectiveness of the UV disinfection technology decreases. The advantage of UV is it doesn’t require chemicals to be placed into the water stream.

TUBING

Tubing on the unit will be color coded for ease of troubleshooting and system tracing.

12 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Water quality and component overview

DESIGN BASIS

• Systems rated at: 50°F (10°C) using 1000 PPM sodium chloride solution operating at 200 psi pressure.

• Minimum feed pressure to RO System: 40 PSI. System capacity changes significantly with water temperature. For higher TDS a water analysis must be supplied and could result in modifications to the system.

• Chlorine must be removed if present in feed water prior to RO with a dechlorinator.

• Pre-treatment for scaling potential is highly recommended to increase time between cleaning/replacement. Typical technologies include softeners or anti-scalant chemical feed.

• Feed water turbidity: Less than 1 NTU; Feed water silt density index (SDI):

3 maximum. If exceeded, pretreatment with media filter recommended. All pretreatment equipment are available from DriSteem.

• Capacity Basis: 24 hrs/day.

Note: The RO needs occasional maintenance and should be accounted for in design.

DESIGN NOTES

1. Pump flow/Feed flow: The pump has been designed to include recycle flow (if any) coming back to the pump inlet from the concentrate stream based on desired recovery. The sum of permeate flow, concentrate flow and recycle flow (if any) will equal the pump design flow.

2. Permeate flow: Indicates design flow rate from RO membranes as product water for use.

3. Concentrate flow: Water flowing to the drain. Concentrate flow is critical for proper system operation.

4. Recycle flow: Flow stream that returns from the concentrate line back to the pump intake, rather than to the drain.

PERFORMANCE BASIS

The RO system will nominally reduce incoming TDS and conductivity by 98%.

The following parameters affect the permeate quality/quantity:

1. Feed Temperature: colder water derates capacity

2. Feed TDS: Higher TDS derates capacity

3. System Pressure: Higher system pressure increases production.

4. Pre-treatment: Maintenance required to maintain RO capacity and minimize fouling.

5. Fouling: Particulate, scale, biofilm reduce quality and capacity.

6. Membrane Age: Capacity reduces over time.

Table 12-1:

RO 400 supply water guidelines

RO Operating Parameter Limit

Minimum inlet pressure 40 psi (dynamic)

Maximum inlet pressure 70 psi (static)

Minimum water temperature in

40°F (4°C)

Design water temperature 50°F (10°C)

Maximum water temperature in

100°F (38°C)

Minimum ambient temperature

40°F (4°C)

Maximum ambient temperature

104°F (40°C)

Feed TDS <1,500 ppm

Operating pH range 4.0-9.0

Feed Water Turbidity <1 NTU

Feed Water Silt Denity Index

(SDI)

<3

Maximum feed iron concentration

<0.05 ppm

Maximum free chlorine concentration

<0.01 ppm*

Maximum feed silica concentration

<10 ppm

Maximum chloride ion concentration

<350 ppm

* Any oxidant or free chlorine will begin to degrade the membrane properties.

Supply water outside of the guidelines may void your DriSteem warranty.

Please contact your DriSteem Representative or DriSteem Technical Support if you need advice.

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13WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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REVERSE OSMOSIS STATION

The reverse-osmosis (RO) station is floor-mounted and removes approximately 98% of total dissolved solids.

Table 13-1:

400 series RO station specifications

Model 401* 402* 403** 404** 406** 408** 412**

Permeate flow rate, GPD (LPD)

50 ºF (10 ºC) or lbs/hr (kg/hr) (see Note 4)

1,429 (5,409) 498 (226)

2,381 (9,013) 829 (376)

4,127 (15,622) 1,436 (651)

5,159 (19,528) 1,795 (814)

7,937 (30,044) 2,762 (1,253)

10,317 (39,054) 3,590 (1,628)

15,808 (59,840) 5,500 (2,495)

Permeate flow rate, GPD (LPD)

77 ºF (25 ºC) or lbs/hr (kg/hr) (see Note 4)

1,800 (6,810) 620 (280)

3,000 (11,350) 1,040 (470)

5,170 (19,570) 1,800 (821)

6,500 (24,600) 2,250 (1,020)

10,000 (37,850) 3,475 (1,580)

13,000 (49,200) 4,510 (2,050)

19,000 (71,910) 6,600 (3,000)

System voltage/phase, Amp draw with RO components (see Note 1)

480/3, 2.5 220-240 /1, 10.0

120/1, 19.2

480/3, 2.5 220-240 /1, 10.0

120/1, 19.2

480/3, 6.0 208-240 /1, 15.4

480/3, 6.0 208-240 /1, 15.4

480/3, 6.0 208-240 /1, 15.4

480/3, 6.0 208-240 /1, 15.4

480/3, 6.0 208-240 /1, 15.4

Fuse size with RO components (see Note 2)

480/3, 15 220/1, 15 120/1, 25

480/3, 15 220/1, 15 120/1, 25

480/3, 15 220/1, 20

480/3, 15 220/1, 20

480/3, 15 220/1, 20

480/3, 15 220/1, 20

480/3, 15 220/1, 20

Dimensions (W/D/H), inches (mm)

28/26/63 (711/660/1600)

37/26/63 (940/660/1600)

46/26/63 (1181/660/1600)

Shipping weight, lbs (kg) 440 (200) 470 (213) 510 (231) 540 (245) 645 (293) 705 (320) 870 (395)

Operating weight, lbs (kg) (see Note 5) 460 (209) 510 (231) 570 (259) 620 (281) 775 (352) 875 (397) 1100 (499)

Supply water connection dia., inches (see Note 3)

¾" FNPT

Notes:

14 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Components overview

Table 14-1:

400 series RO station specifications (Continued)

Model 401* 402* 403** 404** 406** 408** 412**

RO system permeate water outlet connection dia., inches

¾" FNPT

Connection to pressurized RO storage tank dia., inches

Common drain outlet connection dia., inches 1" FNPT

5-micron RO prefilter diameter x height, inches (mm)

4 × 20 (102 x 508)

RO pump motor power, hp (kW)

(0.75)

(2.2)

Qty. of RO membranes 1 2 3 4 6 8 12

RO membrane diameter x height, inches (mm)

4 × 40 (102 x 1016)

Notes:

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15WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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DriSteem rates reverse-osmosis systems at 50°F (10°C). This is lower than the industry standard of 77°F (25°C).

To find the membrane permeate rate at a different temperature, follow these steps:

1. Find the temperature correction factor (TCF) from the below table.

2. Divide the rated permeate flow from Table 13-1 on page 13 by the temperature correction factor.

The result is the permeate flow at the desired temperature.

System operation temperature

Table 15-1:

Optional permeate rate Feed water temperature Temperature correction factor (TCF)

°C °F 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

5 41.0 2.093 2.085 2.077 2.069 2.060 2.052 2.044 2.036 2.028 2.020

6 42.8 2.012 2.004 1.997 1.989 1.981 1.973 1.966 1.958 1.950 1.943

7 44.6 1.935 1.927 1.920 1.913 1.905 1.898 1.890 1.883 1.876 1.868

8 46.4 1.861 1.854 1.847 1.840 1.833 1.826 1.819 1.812 7.805 1.798

9 48.2 1.791 1.784 1.777 1.770 1.763 1.757 1.750 1.743 1.737 1.730

10 50.0 1.723 1.717 1.710 1.704 1.697 1.691 1.684 1.678 1.672 1.665

11 51.8 1.659 1.653 1.646 1.640 1.634 1.628 1.622 1.616 1.610 1.603

12 53.6 1.597 1.591 1.585 1.579 1.574 1.568 1.562 1.556 1.550 1.544

13 55.4 1.539 1.533 1.527 1.521 1.516 1.510 1.504 1.499 1.493 1.488

14 57.2 1.482 1.477 1.471 1.466 1.460 1.455 1.450 1.444 1.439 1.434

15 59.0 1.428 1.423 1.418 1.413 1.407 1.402 1.397 1.392 1.387 1.382

16 60.8 1.377 1.372 1.367 1.362 1.357 1.352 1.347 1.342 1.337 1.332

17 62.6 1.327 1.323 1.318 1.313 1.308 1.304 1.299 1.294 1.289 1.285

18 64.4 1.280 1.276 1.271 1.266 1.262 1.257 1.253 1.248 1.244 1.239

19 66.2 1.235 1.230 1.226 1.222 1.217 1.213 1.209 1.204 1.200 1.196

20 68.0 1.192 1.187 1.183 1.179 1.175 1.171 1.166 1.162 1.158 1.154

21 69.8 1.150 1.146 1.142 1.138 1.134 1.130 1.126 1.122 1.118 1.114

22 71.6 1.110 1.106 1.102 1.098 1.095 1.091 1.087 1.083 1.079 1.076

23 73.4 1.072 1.068 1.064 1.061 1.057 1.053 1.050 1.046 1.042 1.039

24 75.2 1.035 1.032 1.028 1.024 1.021 1.017 1.014 1.010 1.007 1.003

25 77.0 1.000 0.997 0.993 0.990 0.986 0.983 0.980 0.976 0.973 0.970

26 78.8 0.971 0.968 0.965 0.962 0.959 0.956 0.953 0.951 0.948 0.945

27 80.6 0.942 0.939 0.937 0.934 0.931 0.928 0.926 0.923 0.920 0.918

28 82.4 0.915 0.912 0.910 0.907 0.904 0.902 0.899 0.896 0.894 0.891

29 84.2 0.888 0.886 0.883 0.881 0.878 0.876 0.873 0.871 0.868 0.866

30 86.0 0.863 0.861 0.858 0.856 0.853 0.851 0.848 0.846 0.843 0.841

31 87.8 0.838 0.836 0.834 0.831 0.829 0.827 0.824 0.822 0.819 0.817

32 89.6 0.815 0.812 0.810 0.808 0.806 0.803 0.801 0.799 0.796 0.794

33 91.4 0.792 0.790 0.787 0.785 0.783 0.781 0.779 0.776 0.774 0.772

34 93.2 0.770 0.768 0.765 0.763 0.761 0.759 0.757 0.755 0.753 0.751

35 95.0 0.748 0.746 0.744 0.742 0.740 0.738 0.736 0.734 0.732 0.730

36 96.8 0.728 0.726 0.724 0.722 0.720 0.718 0.716 0.714 0.712 0.710

37 98.4 0.708 0.706 0.704 0.702 0.700 0.698 0.696 0.694 0.692 0.690

38 100.4 0.689 0.687 0.685 0.683 0.681 0.679 0.677 0.675 0.674 0.672

39 102.2 0.67 0.668 0.666 0.664 0.663 0.661 0.659 0.657 0.656 0.654

40 104.0 0.652 0.650 0.648 0.647 0.645 0.643 0.641 0.640 0.638 0.636

NOTE: Temperature correction factor only includes membrane performance and doesn't include mechanical design considerations.

16 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

PRESSURIZED RO HOLDING TANK

The pressurized RO holding tank holds RO water in reserve to be available for high-pressure pumping when there is a demand.

Components overview

FIGURE 16-1: PRESSURIZED RO

HOLDING TANK

Table 16-1:

Pressurized RO holding tank total capacity

Tank Capacity Active Capacity (1) Dimensions Weight

Connections Diameter Height Empty Full

80 gal (303 L)

23.6 gal (89 L)

24" (610 mm)

55.5" (1410 mm)

58 lbs (26 kg)

295 lbs (134 kg) 1¼" male NPT FRP with rubber bladder

120 gal (454 L)

35.4 gal (134 L)

24" (610 mm)

(1676 mm)

335 lbs (152 kg)

1235 lbs (560 kg) 2" female NPT

Painted steel with rubber bladder

158 gal (598 L)

46.6 gal (176 L)

30" (762 mm)

(1473 mm)

435 lbs (197 kg)

1620 lbs (735 kg) 2" female NPT

211 gal (799 L)

62.2 gal (235 L)

30" (762 mm)

(1930 mm)

515 lbs (234 kg)

2100 lbs (953 kg) 2" female NPT

Notes:

• There is a possibility that the tank becomes much heavier if the air balloon is emptied or if precharge is different than 28 psi (195 kPa).

• Listed water volumes and weights are at an operating pressure of 30 to 50 psi (210 to 345 kPa) with a precharge of 28 psi (195 kPa).

(1) Based on 30 to 50 psi (210 to 345 kPa) water set point and 28 psi (195 kPa) air precharge.

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IEWComponents overview

ATMOSPHERIC RO HOLDING TANK

The atmospheric RO hold tank holds a large amount of RO water for large jobs or when additional runtime needs to be guaranteed. System includes a recirculation/booster pump and an UV sterilization system to ensure water purity and supply 30-50 psi (207-345 kPa) water to downstream equipment.

FIGURE 17-1: ATMOSPHERIC RO

HOLDING TANK

56" (1422 mm)

8" (2 03 mm)

D

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10" (254 mm)

OM-7820

Drain

Table 17-1:

Atmospheric RO holding tank specifications

Tank model Capacity A B C D Weight

Connections Shipping Operating

AT-165 165 gal (567 L)

56" (1422 mm)

35" (889 mm)

65" (1651 mm)

31" (787 mm)

320 lbs (145.15 kg)

1695 lbs (768.84 kg)

1" (25 mm) PVC, In: Female NPT

Out: Socket

AT-300 300 gal (1135 L)

60.5" (1536.7 mm)

39.5" (1003 mm)

88" (2235.2 mm)

35.5" (901.7 mm)

360 lbs (163.3 kg)

2860 lbs (1297.27 kg)

1" (25 mm) PVC In: Female NPT

Out: Socket

Table 17-2:

Pumps and disinfection

Make Model Voltage Phase Frequency Running Amps Noise level dB(A)

UV system Viqua VT4 120V Single 60 Hz 0.28A -

Forwarding pump Grundfos Scala2 120V Single 60 Hz 2.8A <47

18 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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Placing components

When placing components, consider the following:

• Easy access for maintenance

water.

piping” section of this manual, beginning on Page25.

power distribution transformers and high horsepower motors controlled by variable frequency drives.

Important:

Installation must comply with governing codes.

WARNING

All DriSteem RO-400 series reverse-osmosis systems must be bolted to the floor or permanently attached to the building structure. Use the shipping brackets that come with the system to anchor the system to the floor or use the attachment points on the underside of the top frame rail on the back of the system to secure the system to the building structure. Ensure adequate anchors and/retaining means are used. Failure to install according to instructions can result in serious injury or death.

FIGURE 18-1: ATMOSPHERIC HOLDING TANK CONNECTIONS

120V junction box field connection

OM-8219

RO permeate to end user

RO permeate connection

Level switch connection

Recirculation connection

Drain

Overflow

Lid

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Piping and instrumentation arrangement

FIGURE 19-1: FLOW SCHEMATIC WITH A TANK DECHLORINATOR AND PRESSURIZED STORAGE TANK

OM-7828A

NOTE:

Best practice as installation sequence. Equipment may be different from what DriSteem provided on a project.

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Piping and instrumentation arrangement

FIGURE 20-1: FLOW SCHEMATIC WITH A TANK DECHLORINATOR AND ATMOSPHERIC STORAGE TANK

OM-7828B

21WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Piping and instrumentation arrangement

FIGURE 21-1: FLOW SCHEMATIC WITH A CARTRIDGE DECHLORINATOR AND PRESSURIZED STORAGE TANK

OM-7829A

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Piping and instrumentation arrangement

OM-7829B

FIGURE 22-1: FLOW SCHEMATIC WITH A CARTRIDGE DECHLORINATOR AND ATMOSPHERIC STORAGE TANK

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Table 23-1:

Maximum length of interconnecting tubing between pump station and RO holding tank

RO station model Volume Tubing nominal diameter

Minimum tube I.D. Maximum developed length* gpm L/m in. mm ft m

401 1 3.8

1/2" 0.375 10 >100 >30

3/4" 0.625 16 >100 >30

1" 0.875 23 >100 >30

402 1.65 6.4

1/2" 0.375 10 64 >20

3/4" 0.625 16 >100 >30

1" 0.875 23 >100 >30

403 2.9 11.0

1/2" 0.375 10 18 5.5

3/4" 0.625 16 >100 >30

1" 0.875 23 >100 >30

404 3.6 13.6

1/2" 0.375 10 — —

3/4" 0.625 16 >100 >30

1" 0.875 23 >100 >30

406 5.50 20.8

1/2" 0.375 10 — —

3/4" 0.625 16 95 29

1" 0.875 23 >100 >30

408 7.20 27.3

1/2" 0.375 10 — —

3/4" 0.625 16 51 16

1" 0.875 23 >100 >30

412 11 41.6

1/2" 0.375 10 — —

3/4" 0.625 16 22 7

1" 0.875 23 89 27

of this manual.

Interconnecting tubing requirements

24 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

System configuration may not include all components.

TYPICAL TOOLS/SUPPLIES NEEDED

TYPICAL FIELD-SUPPLIED COMPONENTS

Components and tools needed

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System piping

FOR SYSTEMS TO BE PIPED IN THE FIELD

WATER PRE-TREATMENT

Typical inlet pressure range to dechlorinator is 60 to 90 psi (415 to 620 kPa). Minimum inlet dynamic (while running) pressure to dechlorinator is 60 psi (415 kPa).

DECHLORINATOR

For detailed instructions see the dechlorinator manual that shipped with your system.

Refer to for arrangement of piping and instrumentation.

1. Connect the water supply and bypass piping to the inlet of the dechlorinator.

2. Plumb drain outlet from the dechlorinator to nearby drain.

3. Connect outlet of dechlorinator to water softener inlet.

4. Plug in the power cord to a 120V, single-phase receptacle.

Wall mounted dechlorinator (Models 401 and 402 only):

1. Mount dechlorinator housing assembly near the water softener.

2. Insert carbon block filter and reattach blue housing.

3. Plumb dechlorinator outlet to water softener inlet.

4. Connect the water supply to the inlet of the dechlorinator.

5. For systems that have a tank style carbon filter with control valve (Figures 19-1 and 20-1): Be sure that the elastomeric Drain Line Flow Control restrictor washer is installed correctly in the drain outlet plumbing assembly prior to use. This item is required to prevent overflow and potential carry over of carbon to the drain system.

For wall mounted systems that use extruded carbon block filter (Figures 21-1 and 22-1):

Weekly chlorine level checks are recommended. Once chlorine is determined to be passing through, change the carbon filter. Typical life is 1-3 months depending on usage.

DUPLEX WATER SOFTENER

For detailed instructions see the water softener manual that shipped with your system.

Refer to Figure 19-1, 20-1, 21-1 or 22-1 for arrangement of piping and instrumentation.

1. Connect water supply and bypass piping to inlet to duplex water softener.

2. Connect brine tank to water softener control system using plastic hose supplied.

3. Add salt to brine tank. DriSteem recommends using highest purity salt available.

4. Plumb drain outlet from water softener to nearby drain.

5. Connect water softener outlet to RO station inlet.

6. Plug in power cord to a 120V, single-phase receptacle.

7. Program softener for site conditions and requirements.

26 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

RO STATION AND PRESSURIZED RO HOLDING TANK

Refer to Figures 19-1 and 21-1 for arrangement of piping and instrumentation.

Minimum inlet dynamic (while running) pressure is minimum 40 psi (275 kPa).

1. Connect source water (pretreated) to RO station inlet.

2. Plumb RO drain connection to drain.

3. Plumb RO permeate to RO holding tank and downstream equipment.

Be sure to install manual shut-off valve for pressurized RO holding tank as shown in Figure 26-1 to prevent tank contamination while flushing the RO system.

It is recommended to install an additional manual shut off valve with piping for flushing and draining the system (see Figure 19-1 or 21-1).

4. Set recirc flow meter to desired level, but not above the maximum allowed setting corresponding to specific model as shown in Table 36-1.

5. Precharge pressurized RO holding tank to 26 to 28 psi (180 to 195 kPa).

See “Pressurized RO Holding tank” on Page 61.

System piping

FIGURE 26-1: HOSE FROM RO WATER

OUTLET CONNECTED TO PRESSURIZED

RO HOLDING TANK

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FIGURE 27-1: SYSTEM PLUMBING WITH A ATMOSPHERIC TANK

67.5" 1715 mm)

56" (1422 mm) >24" (610 mm)

Floor drains required (by others, locations may very)

Drain line

RO water supply line to end user

Connection to atmospheric tank reduce as required (no copper or steel piping)

D See Table 6-1

RO permeate connection from system

Overflow

120V 1 Phase

Level switch connection field to RO

See detail report for VAC/ Phase/Frequency/Amps

RO STATION AND ATMOSPHERIC HOLDING TANK

Refer to Figure 27-1 for arrangement of piping and instrumentation.

Minimum inlet dynamic (while running) pressure is 40 psi (275 kPa).

1. Connect source water (pretreated) to RO station inlet.

2. Plumb RO drain connection to drain.

3. Plumb RO permeate to atmospheric tank (3/4" upper tank connection).

Plumb storage tank overflow and drain connection to drain.

4. Set recirc flow meter to desired level, but not above the maximum allowed setting corresponding to specific model as shown in Table 36-1.

5. Set forwarding pump to maximum pressure output. Set the gate valve to 15% of pumps flow by using startup instructions on Page 32-1.

System piping

OM-8218

Inlet

Outlet

Drain

28 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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System piping

PLUMBING

Plumbing materials can significantly contribute to the contamination of the water. Care must be exercised over the choice of thread sealants. PTFE tape is suitable for all threaded connections in this system. Pipe dope can leach objectionable impurities into the water and must be avoided.

FEED WATER CONNECTION

Connect the raw water supply to the inlet of the solenoid valve, observing the following:

• The line size shall be ¾ inches (19 mm) or larger to minimize pressure loss.

• A manual valve should be installed on this line to shut off the water supply if it will ever be needed. Be sure that this valve in no way restricts the water flow when it is fully open.

• Water supply minimum pressure 40 psi (276 kPa). A pressure regulator may be required if pressure is above 70 psi (483 kPa).

CONCENTRATE/REJECT CONNECTION

Connect a line to the single point drain outlet on the skid. The drain must have a minimum capacity which meets or exceeds the combined output of all system drains.

PERMEATE/PRODUCT WATER CONNECTION

Connect the product water line to the product connection point on the system.

Run this line to your storage tank or other downstream equipment, observing the following:

• Run this line in such a manner as to minimize static head pressure in the product line.

damaged during installation.

See Figure 8-1 for all connection point locations.

CAUTION

This unit produces high quality water which could cause corrosion or leaching of the plumbing following the system. Use only plumbing components of inert material that are compatible with the application.

Copper plumbing cannot be used.

Important:

All plumbing is to be done in accordance with state and local codes.

CAUTION

RO membranes will fail immediately if the product water is allowed to flow backward into the elements.

CAUTION

The highest point of the tubing should not be higher than four feet above the top of the RO membrane housing, or the elements may be damaged.

CAUTION

Do not fully close the manual valve located directly after the RO pump.

This could cause cavitation and premature pump failure.

CAUTION

Damage to pump Do not close the valve. Do not operate the pump below minimum combined flow rate (permeate + concentrate + recirculating).

Models 401-402: 4 gpm (15.2 L/ min) Models 403-412: 6 gpm (22.7 L/min)

29WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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WIRING

• Ladder style wiring diagrams (included with unit, separate from this manual) show power, control, and equipment-to-control-cabinet interconnection requirements.

Note: If using a field supplied floor water leak switch (terminals P15-3 and P15-4) remove factory jumper from the control board.

• External connections diagrams (included with unit, separate from this manual) show connection points to the microprocessor-based controller and wire terminals for external safety and control devices.

Note: A motor starter switch is provided to interlock any equipment downstream, if desired. The switch is directly located on the motor starter.

All wiring must be in accordance with all governing codes and with wiring diagrams.

ELECTRICAL INSTALLATION

Wiring and branch circuit protection is provided by the installer per NEC (or IEC 60364 in Europe) requirements.

For power supply and machine ground connections, size the wire using the 75 °C wiring table, per NEC (or IEC 60364 in Europe) requirements. Then use copper conductors rated for a 105 °C environment. The wiring from the control cabinet to the equipment must be rated for 105 °C.

Verify electrical current characteristics (voltage, phase and amp draw) and capacity requirements against those listed on the name plate.

SERVICE DISCONNECT

A service disconnect must be installed per NEC requirements and governing codes.

PREVENTING ELECTRICAL NOISE

Electrical noise can produce undesirable effects on electronic control circuits, thereby affecting controllability. Electrical noise is generated by electrical equipment such as inductive loads, electric motors, solenoid coils, welding machinery, or fluorescent light circuits. The electrical noise or interference generated from these sources (and the effect on controllers) is difficult to define, but the most common symptoms are erratic control or intermittent operational problems.

Most electrical noise problems can be prevented by using proper wiring practices and techniques to prevent coupling or inducing of electrical interference into control circuits. The following wiring practices should minimize interaction of noise and controls:

when routing electrical wiring inside the control cabinet.

Connecting components

Important:

Failure to follow these wiring procedures can result in erratic operation or failure.

This product has been tested at the factory for proper operation. Product failures resulting from faulty handling, incorrect wiring, or shorting of wires together on external components are not covered under your DriSteem warranty. Review information and diagrams before proceeding.

WARNING

Electric shock hazard Only qualified electrical personnel should perform field wiring installation procedures. Improper wiring or contact with energized circuits can cause property damage, severe personal injury, or death as a result of electric shock and/or fire.

Do not open control cabinet, pump motor, or subpanel access panels until electrical power is disconnected.

CAUTION

Damage from debris When drilling penetrations in the control cabinet, protect all internal components from debris, and vacuum out the control cabinet when finished.

Failure to comply with this directive can damage sensitive electronic components, cause erratic operation or failure, and void your DriSteem warranty.

30 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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Connecting components

GROUNDING REQUIREMENTS

The approved earth ground must be made with solid metal‑to-metal connections and must be a good conductor of radio frequency interference (RFI) to earth (multistranded conductors).

Ground wire should be the same AWG (mm2) size as the power wiring or sized per NEC requirements (in Europe, IEC 60364 requirements).

CAUTION

On three-phase units ensure proper supply line voltage wiring. Incorrect wiring will cause the RO pump to run backwards and void your DriSteem warranty.

WARNING

Tipping hazard Before installing the 400 series reverse-osmosis system, use supplied leg brackets or lag points to permanently fix the system to the floor and/or adjacent building structure. Failure to install according to instructions can result in serious injury or death. See page 18 for instructions.

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If an item in the Start-up checklist below does not apply to your system, skip to the next item and continue the process.

local codes.

connected to the Display connector on the Vapor-logic board.

(210 and 345 kPa) respectively.

several seconds to appear as the controller powers up.

verify that the pump is activated.

Model, and call DriSteem Technical Support at 800-328-4447.

Note: �Instructions on how to properly care for the freeze protect chemical that is shipped with the system is available on the MSDS sheet at www.dristeem.com.

requirements.

Start-up checklist http://www.dristeem.com

32 WATER TREATMENT SYSTEM MODEL 400 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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START-UP PROCEDURE

Check component installation per the layout shown in Figure 19-1 through Figure 22-1 (depending on your model). After all components are installed and connected properly:

1. Perform all applicable “Start-up checklist” items on Page 31.

2. Read and follow instructions in the “Operation” section of Vapor-logic Installation and Operation Manual.

Note: During start-up, do not leave the system unattended.

3. Close the manual valves to both the RO holding tank and all downstream equipment. Open the manual valve leading to the drain.

4. Open the feed water supply valve.

5. Open the system pressure (pump throttle) control valve fully counterclockwise (if applicable). Open the concentrate control valve fully counterclockwise. Close the recycle valve.

6. Put the system…