DriSteem 250 User manual

High-Pressure System
with Water Treatment System
Installation, Operation,
and Maintenance Manual
EVAPORATIVE COOLING
AND HUMIDIFICATION
READ AND SAVE THESE INSTRUCTIONS

ii DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
WARNINGS AND CAUTIONS
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 23 for instructions.
Monitor open-space dispersion areas for leaks or drips
Monitor the system for leaks or drips in the dispersion area. Uncorrected leaks or drips could cause wet floors and slippery
footing, which could lead to personal injury. Leaks or drips above equipment could cause property damage.

iii
DRISTEEM HIGH-PRESSURE SYSTEM 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 74.
Fill in the following information for your records
Date of purchase ___________________________________________________________________________________________________________
Customer's name ___________________________________________________________________________________________________________
Model number ___________________________________________________________________________________________________________
Serial number ___________________________________________________________________________________________________________
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 adiabatic humidifiers or adiabatic cooling
devices. There is an associated risk with all water sources and the potential for bio growth, including bacterium that causes
Legionnaires disease.
DriSteem high-pressure systems, products, and components are designed, with consideration, to reduce the risk of Legionnaires
disease and other similar situations. The water treatment and high-pressure system design take 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 and humidifier 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.

iv DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
WARNINGS AND CAUTIONS ................................................ii
OVERVIEW..............................................................2
System dimensions......................................2
Water quality and component overview.......................4
System overview .......................................6
Components overview ...................................7
Dechlorinator specifications ...............................8
Single water softener specifications ..........................9
Duplex water softener specifications ........................10
Optional pretreatment skid mounting ........................12
Skidded single water softener and dechlorinator specifications......13
Skidded duplex water softener and dechlorinator specifications .....14
Skidded duplex water softener specifications ..................15
Reverse osmosis specifications ............................16
System operation temperature.............................18
INSTALLATION ......................................................... 23
Components and tools needed ............................23
Placing components....................................25
Loading the carbon media ...............................30
Loading the water softener media ..........................31
Piping and instrumentation arrangement .....................34
Site requirements......................................36
Plumbing and wiring for dual softener 21, 24, 30 inch models .....38
Interconnecting tubing requirements.........................40
Pre-treatment system piping...............................41
RO system piping .....................................42
High-pressure system piping ..............................44
Electrical installation ...................................48
Connecting communication components......................49
Start-up checklist:......................................55
Pre-treatment ......................................55
RO 400 water treatment system ........................56
High-pressure system ................................57
OPERATION ........................................................... 58
System startup: .......................................58
Softener and dechlorinator ............................58
RO 400 water treatment system ........................62
High-pressure system ................................65
Softener and RO checklist................................67
High-Pressure Atomizing System checklist .....................68
Vapor-logic keypad/display: .............................69
RO water treatment system ............................69
High-pressure system ................................71
Table of contents

1
DRISTEEM HIGH-PRESSURE SYSTEM 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 documents are available on our
web site: www.dristeem.com
• Evaporative Cooling and Humidification
Catalog
• Vapor-logic Controller Installation and
Operation Manual
• Water Treatment System Catalog
DriCalc® sizing and selection software:
DriCalc, our software for system sizing and
selection, can be ordered at our web site. Also
in DriCalc:
• Library of installation guides
• Dispersion and sensor placement in
ducts and air handlers
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 your High-
Pressure 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 can be
downloaded, printed, and ordered from our
website: www.dristeem.com
MAINTENANCE ........................................................ 74
Water treatment system components ........................74
High-pressure system components ..........................75
Water treatment maintenance information ....................76
Water quality test strips .................................82
Inlet water quality test log................................83
RO system operating log ................................84
High-pressure system operating log .........................85
TROUBLESHOOTING..................................................... 86
Pre-treatment system troubleshooting ........................86
RO water treatment system troubleshooting....................90
High-pressure system troubleshooting ........................92
REPLACEMENT PARTS .................................................... 94
Water treatment system .................................94
RO system ..........................................95
RO system subpanel ...................................97
High-pressure system ...................................98
High-pressure dispersion system ..........................101
WARRANTY ..........................................................104

2DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
System dimensions
OVERVIEW
OM-7899a
FIGURE 2-1: DRISTEEM HIGH-PRESSURE SYSTEM DIMENSIONS
H
G
G
F
0-4" (0-100mm)
0-4" (0-100mm)
0-4" (0-100mm)
4-8" (100-200mm)
E
A
4-8" (100-200mm)
8" (200mm)
D
C
C
63"
(1600mm)
26"
(660mm)
B
I
J
60" (1524mm) add 16"
(406mm) when redundant
high-pressure water pump
option is used
K
8" (203mm)
56" (1422mm)
L (DIA)
10" (254mm)

3
DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Table 3-1:
DriSteem High-Pressure System dimensions1
Model
Dimensions s
A
2B C D E F G H
inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm
250 150 3810 24
3610 355 1397 24 610 24 610 18 457 12 305 4 41024
500 160 4064 24
3610 355 1397 24 610 24 610 24 610 14 356 4 41024
1000 176 4470 24
3610 355 610 24 610 32 813 24 610 16 406 16 406
1750 176 4470 24
3610 355 610 24 610 32 813 24 610 16 406 16 406
2500 197 5004 30 762 80 2032 24 610 32 813 30 762 21 533 21 533
3500 221 5613 30 762 72 1829 30 762 40 1016 39 991 24 610 24 610
5500 239 6071 30 762 90 2286 30 762 46 1168 39 991 30 762 30 762
Notes:
1. Water treatment component sizing is based on city-treated water, 20-grain hardness, and 50 °F (10 °C) or higher. City-treated water or well
water with different hardness or temperature may require different components/dimensions. Call DriSteem with your water characteristics for
component sizing.
2. Dimension given is maximum dimension when all components are located sequentially. Component locations are flexible; components may be
placed in front of each other if floor space allows.
3. Add 6" (152 mm) when redundant high-pressure water pump option is used.
4. Wall-mounted dechlorinator standard (tank-style optional).
5. Typical non-skidded. For other options see the Water Treatment System or Pre-treatment Installation, Operation, and Maintenance Manual or
contact Dristeem.
System dimensions
Table 3-2:
Atmospheric RO holding tank specifications
RO station
model Description I J K L
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

4DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Water quality and component overview
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).
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.
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 water treatment 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
• RO storage options include:
- Pressurized RO holding tank
- Atmospheric RO holding tank with UV sterilization and booster pump

5
DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
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.
• Water must be pretreated with a softener to avoid scaling
the membranes.
• 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
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.
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)

6DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
System overview
Note:
• System components and configuration may vary to meet application requirements.
• A water treatment system must be used with the DriSteem High-pressure system. See
the Pre-treatment Installation, Operation, and Maintenance manual for skid mounted
options..
Typical nozzle
dispersion configuration
in open space
Brine tank
Depressurization
valve
Duplex water softener
Dechlorinator (wall-
mounted on smaller
models)
Pump station (install level):
• High-pressure, stainless-steel pump and motor
• Vapor-logic controller
RO water holding tank
RO station (install level):
• Particulate filter
• RO membranes
Water supply inlet (30 psi [210 kPa]
minimum supply water pressure)
High-pressure zone valve
(single zone, area type only)
Staging valve(s)
Pressure gauge (by others)
Open drain
with 1" (25 mm) air gap
Open drain
with 1" (25 mm) air gap
Zone control cabinet with Vapor-logic control
Typical nozzle dispersion
configuration in AHU Depressurization valve(s)
Final evaporation media
Airflow
FIGURE 6-1: DRISTEEM HIGH-PRESSURE SYSTEM OVERVIEW
OM-7901a
Vapor-logic keypad
High pressure
stainless steel
distribution lines
Vapor-logic keypad
Control cabinet
High pressure pump and water

7
DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Components overview
Your system may include all or some of the following components.
• Pretreatment equipment
- Dechlorinator
- Softener
• RO system components
- Water pump
- Vapor-logic controller
- Gauges, valves
- Control cabinet
- Storage tank
• Pumping station components
- High-pressure water pumping components
- Vapor-logic controller
- Gauges, valves
- Control cabinet
• Atomization piping, manifolds, nozzles, valves
• Final evaporation media
• RH transmitters and airflow switches
PUMPING STATION
The pumping station arrives at the job site ready for single-point connection
to power and water. Contained within the rugged, painted-steel frame are
the high-pressure water pumping components, gauges, valves, and a control
cabinet.
FIGURE 7-1: PUMPING STATION

8DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Dechlorinator specifications
DECHLORINATOR
The dechlorinator removes chlorine from the water that degrades the reverse
osmosis membranes.
120V, single-phase, 60 Hz, 5A electrical service is required for all
dechlorinator models, except for the DC-CB dechlorinator (requires no
electrical service).
FIGURE 8-1: DECHLORINATOR
FIGURE 8-2: WALL MOUNT DECHLORINATOR
Table 8-1:
Dechlorinator specifications
Dechlorinator
model* Media volume Dimensions,
diameter x height
Connections,
in /out Drain connection Backwash flow** Operating weight Shipping
weight***
DC-CB Carbon black
filter
4" × 20"
(102 x 508 mm) 1" Female NPT — — — —
DC-744 0.5 ft3
(0.014 m3)
7" × 44"
(178 x 1118 mm) 1" Brass SWT ¾" Male NPT 2.7 gpm (10.2 L/m)
120 lbs
(54.4 kg)
100 lbs
(45.4 kg)
DC-844 0.75 ft3
(0.021 m3)
8" x 44"
(203 x 1118 mm) 1" Brass SWT ¾" Male NPT 3.2 gpm (12.1 L/m)
130 lbs
(59.0 kg)
115 lbs
(52.2 kg)
DC-948 1.00 ft3
(0.028 m3)
9" × 48"
(229 x 1219 mm) 1" Brass SWT ¾" Male NPT 4.2 gpm (15.9 L/m)
150 lbs
(68.0 kg)
130 lbs
(59.0 kg)
DC-1054 1.50 ft3
(0.042 m3)
10" x 54"
(254 x 1372 mm) 1" Brass SWT ¾" Male NPT 5.3 gpm (20.1 L/m)
175 lbs
(79.4 kg)
150 lbs
(68.0 kg)
DC-1252 2.00 ft3
(0.050 m3)
12" x 52"
(305 x 1321 mm) 1" Brass SWT ¾" Male NPT 7.5 gpm (28.4 L/m)
210 lbs
(95.3 kg)
190 lbs
(86.2 kg)
DC-1354 2.50 ft3
(0.071 m3)
13" x 54"
(330 x 1372 mm) 1" Brass SWT ¾" Male NPT 10.0 gpm (37.9 L/m)
240 lbs
(108.9 kg)
225 lbs
(102.1 kg)
DC-1465 3.00 ft3
(0.085 m3)
14" x 65"
(356 x 1651 mm) 1" Brass SWT 1" Male NPT 12.0 gpm (45.4 L/m)
375 lbs
(170.1 kg)
335 lbs
(152.0 kg)
DC-1665 4.00 ft3
(0.113 m3)
16" x 65"
(406 x 1651 mm) 1" Brass SWT 1" Male NPT 15.0 gpm (56.8 L/m)
450 lbs
(204.1kg)
385 lbs
(174.6 kg)
DC-2162 6.00 ft3
(0.170 m3)
21" x 62"
(533 x 1575 mm) 1.5" Female NPT 1" Male NPT 25.0 gpm (94.6 L/m)
750 lbs
(340.2 kg)
645 lbs
(292.6 kg)
DC-2472 8.00 ft3
(0.227 m3)
24" x 72"
(610 x 1829 mm) 1.5" Female NPT 1" Female NPT 33.0 gpm (124.9 L/m)
1200 lbs
(544.3 kg)
950 lbs
(430.9 kg)
DC-3072 12.50 ft3
(0.354 m3)
30" x 72"
(762 x 1829 mm) 2" Female NPT 1" Female NPT 50.0 gpm (189.3 L/m)
1850 lbs
(839.1 kg)
1535 lbs
(696.3 kg)
* DC-CB is wall mounted; all other models are floor mounted.
** Based on 60 to 90 psi (415 to 620 kPa) inlet pressure.
*** DC-2162, DC-2472, and DC--3072 media shipped separate, but included in shipping weight total.

9
DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Single water softener specifications
WATER SOFTENER AND BRINE TANK
The water softener and brine tank are floor-mounted and exchange water
hardness for sodium.
120V, single-phase, 60 Hz, 5A electrical service is required for all water
softener models.
FIGURE 9-1: SINGLE WATER SOFTENER
AND BRINE TANK
AA
B
D
C
Water
outlet
Water inlet
OM-7940
Table 9-1:
Single softener and brine tank specifications
Softener
model
Media volume
per tank
Resin tank
diameter (A) x
height (B)
(per tank)
Connections,
in /out
Drain
connection
Brine
connection
Backwash
flow**
Brine tank
diameter (C) x
height (D)
Operating
weight
Shipping
weight***
WS-744 0.5 ft3
(0.014 m3)
7" × 44"
(178 x 1118 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
1.35 gpm
(4.9 L/m)
18" x 33"
(457 x 838 mm)
550 lbs
(249.5 kg)
110 lbs
(49.9 kg)
WS-844 0.75 ft3
(0.021 m3)
8" x 44"
(203 x 1118 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
1.70 gpm
(6.4 L/m)
18" x 40"
(457 x 1016 mm)
675 lbs
(306.2 kg)
125 lbs
(56.7 kg)
WS-948 1.00 ft3
(0.028 m3)
9" × 48"
(229 x 1219 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
2.2 gpm
(8.3 L/m)
18" x 40"
(457 x 1016 mm)
700 lbs
(317.5 kg)
140 lbs
(63.5 kg)
WS-1054 1.50 ft3
(0.042 m3)
10" x 54"
(254 x 1372 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
2.7 gpm
(10.2 L/m)
18" x 40"
(457 x 1016 mm)
710 lbs
(322.1 kg)
160 lbs
(72.6 kg)
WS-1252 2.00 ft3
(0.050 m3)
12" x 52"
(305 x 1321 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
3.2 gpm
(12.1 L/m)
18" x 40"
(457 x 1016 mm)
750 lbs
(340.2 kg)
200 lbs
(90.7 kg)
WS-1354 2.50 ft3
(0.071 m3)
13" x 54"
(330 x 1372 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
4.2 gpm
(15.9 L/m)
18" x 40"
(457 x 1016 mm)
800 lbs
(362.9 kg)
235 lbs
(106.6 kg)
WS-1465 3.00 ft3
(0.085 m3)
14" x 65"
(356 x 1651 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
5.3 gpm
(20.1 L/m)
24" x 41"
(610 x 1041 mm)
1350 lbs
(612.3 kg)
345 lbs
(156.5 kg)
WS-1665 4.00 ft3
(0.113 m3)
16" x 65"
(406 x 1651 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
6.5 gpm
(24.6 L/m)
24" x 41"
(610 x 1041 mm)
1400 lbs
(635.0 kg)
395 lbs
(179.2 kg)
WS-2162 6.00 ft3
(0.170 m3)
21" x 62"
(533 x 1575 mm)
1.5" Female
NPT 1" Male NPT ½" OD tube
12.0 gpm
(45.4 L/m)
30" x 48"
(762 x 1219 mm)
2300 lbs
(1043.3 kg)
655 lbs
(297.1 kg)
WS-2472 8.00 ft3
(0.227 m3)
24" x 72"
(610 x 1829 mm)
1.5" Female
NPT 1" Male NPT ½" OD tube
15.0 gpm
(56.8 L/m)
39" x 48"
(991 x 1219 mm)
4000 lbs
(1814.4 kg)
960 lbs
(435.4 kg)
WS-3072 12.50 ft3
(0.354 m3)
30" x 72"
(762 x 1829 mm) 2" Female NPT 1" Male NPT ½" OD tube
25.0 gpm
(94.6 L/m)
39" x 48"
(991 x 1219 mm)
4700 lbs
(2131.9 kg)
1545 lbs
(701.0 kg)
** Based on 60 to 90 psi (415 to 620 kPa) inlet pressure.
*** WS-2162, WS-2472, and WS--3072 media shipped separate, but included in shipping weight total.

10 DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Duplex water softener specifications
WATER SOFTENER AND BRINE TANK
The water softener and brine tank are floor-mounted and exchange water
hardness for sodium.
120V, single-phase, 60 Hz, 5A electrical service is required for all water
softener models.
FIGURE 10-1: DUPLEX WATER SOFTENER
AND BRINE TANK
AA
B
D
C
Water outlet
NPT water inlet
OM-7941
Table 10-1:
Duplex softener and brine tank specifications
Softener
model*
Media volume
per tank
Resin tank
diameter (A) x
height (B)
(per tank)
Connections,
in /out
Drain
connection
Brine
connection
Backwash
flow**
Brine tank
diameter (C) x
height (D)
Operating
weight
Shipping
weight
WD-744 0.5 ft3
(0.014 m3)
7" × 44"
(178 x 1118 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
1.35 gpm
(4.9 L/m)
18" x 33"
(457 x 838 mm)
650 lbs
(294.8 kg)
210 lbs
(95.3 kg)
WD-844 0.75 ft3
(0.021 m3)
8" x 44"
(203 x 1118 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
1.7 gpm
(6.4 L/m)
18" x 40"
(457 x 1016 mm)
800 lbs
(362.9 kg)
250 lbs
(113.4kg)
WD-948 1.00 ft3
(0.028 m3)
9" × 48"
(229 x 1219 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
2.2 gpm
(8.3 L/m)
18" x 40"
(457 x 1016 mm)
850 lbs
(385.6 kg)
270 lbs
(122.5 kg)
WD-1054 1.50 ft3
(0.042 m3)
10" x 54"
(254 x 1372 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
2.7 gpm
(10.2 L/m)
18" x 40"
(457 x 1016 mm)
900 lbs
(408.2 kg)
310 lbs
(140.6 kg)
WD-1252 2.00 ft3
(0.050 m3)
12" x 52"
(305 x 1321 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
3.2 gpm
(12.1 L/m)
18" x 40"
(457 x 1016 mm)
950 lbs
(430.9 kg)
390 lbs
(176.9 kg)
WD-1354 2.50 ft3
(0.071 m3)
13" x 54"
(330 x 1372 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
4.2 gpm
(15.9 L/m)
18" x 40"
(457 x 1016 mm)
1050 lbs
(476.3 kg)
460 lbs
(208.7 kg)
WD-1465 3.00 ft3
(0.085 m3)
14" x 65"
(356 x 1651 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
5.3 gpm
(20.1 L/m)
24" x 41"
(610 x 1041 mm)
1700 lbs
(771.1 kg)
680 lbs
(308.4 kg)
WD-1665 4.00 ft3
(0.113 m3)
16" x 65"
(406 x 1651 mm) 1" Brass SWT ¾" Male NPT 3/8" OD tube
6.5 gpm
(24.6 L/m)
24" x 41"
(610 x 1041 mm)
1850 lbs
(839.1 kg)
778 lbs
(352.9 kg)
** Based on 60 to 90 psi (415 to 620 kPa) inlet pressure.

11
DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Duplex water softener specifications
FIGURE 11-1: DUPLEX WATER SOFTENER
AND BRINE TANK
Table 11-1:
Duplex softener and brine tank specifications
Softener
model*
Media volume
per tank
Resin tank
diameter (A) x
height (B)
(per tank)
Connections,
in /out
Drain
connection
Brine
connection
Backwash
flow**
Brine tank
diameter (C) x
height (D)
Operating
weight
Shipping
weight***
WD-2162 6.00 ft3
(0.170 m3)
21" x 62"
(533 x 1575 mm)
1.5" Female
NPT 1" Male NPT ½" OD tube
12.0 gpm
(45.4 L/m)
30" x 48"
(762 x 1219 mm)
3050 lbs
(1383.5 kg)
1300 lbs
(589.7 kg)
WD-2472 8.00 ft3
(0.227 m3)
24" x 72"
(610 x 1829 mm)
1.5" Female
NPT 1" Male NPT ½" OD tube
15.0 gpm
(56.8 L/m)
39" x 48"
(991 x 1219 mm)
5100 lbs
(2313.3 kg)
1910 lbs
(866.4 kg)
WD-3072 12.50 ft3
(0.354 m3)
30" x 72"
(762 x 1829 mm) 2" Female NPT 1" Male NPT ½" OD tube
25.0 gpm
(94.6 L/m)
39" x 48"
(991 x 1219 mm)
6500 lbs
(2948.4 kg)
3080 lbs
(1397.1 kg)
** Based on 60 to 90 psi (415 to 620 kPa) inlet pressure.
*** WD-2162, WD-2472, and WD--3072 media shipped separate, but included in shipping weight total.

12 DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Note: Duplex water softeners
for 21-inch diameter and
larger must have media
installed in the field.
SELECT PRETREATMENT SKID MOUNTING FOR EASE OF INSTALLATION
Reduce installation cost and time by having pretreatment components come
pre-assembled. The DriSteem water softener(s), brine tank, and dechlorinator
have a single point water inlet, water outlet, and power for all components.
• Save time and cost on installation
• Maximize clearance
• Ensure proper installation and operation
54" (1372 mm)
B
W
D
L + C
C
6" (152 mm)
1" (25 mm)
Optional pretreatment skid mounting
Table 12-1:
Voltages
AC adapter U.S.
Supply voltage 120 VAC
Supply frequency 60 Hz
Output voltage 12 VAC
Output current 500 mA
OM-7819a
L

13
DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Skidded single water softener and dechlorinator specifications
Table 13-1:
Skidded single water softener and dechlorinator
Skid size*
(outside dimensions)
L x W x H
Tank quantity on
skid
Media tank
diameter (A) x
height (B) (per
tank)
Connections,
in/out Backwash flow***
Brine tank
diameter (C) x
height (D)
Shipping weight
52"x 26" x 54"
(1321 x 660 x 1372 mm) 37" × 44" (178 x 1118 mm) 1" 1.35 gpm (4.9 L/m)
18" x 33"
(457 x 838 mm)
370 lbs
(167.8 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 38" x 44" (203 x 1118 mm) 1" 1.70 gpm (6.4 L/m)
18" x 40"
(457 x 1016 mm)
400 lbs
(181.4 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 39" × 48" (229 x 1016 mm) 1" 2.2 gpm (8.3 L/m)
18" x 40"
(457 x 1016 mm)
420 lbs
(190.5 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 310" x 54" (254 x 1372 mm) 1" 2.7 gpm (10.2 L/m)
18" x 40"
(457 x 1016 mm)
470 lbs
(213.2 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 312" x 52" (305 x 1321 mm) 1" 3.2 gpm (12.1 L/m)
18" x 40"
(457 x 1016 mm)
530 lbs
(240.4 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 313" x 54" (330 x 1372 mm) 1" 4.2 gpm (15.9 L/m)
18" x 40"
(457 x 1016 mm)
620 lbs
(281.2 kg)
66"x 28" x 54"
(1676 x 711 x 1372 mm) 314" x 65" (356 x 1651 mm) 1" 5.3 gpm (20.1 L/m)
24" x 41"
(610 x 1041 mm)
860 lbs
(390.1 kg)
66"x 28" x 54"
(1676 x 711 x 1372 mm) 316" x 65" (406 x 1651 mm) 1" 6.5 gpm (24.6 L/m)
24" x 41"
(610 x 1041 mm)
910 lbs
(412.8 kg)
100"x 34" x 54"
(2540 x 864 x 1372 mm) 321" x 62" (533 x 1575 mm) 1.5" 12.0 gpm (45.4 L/m)
30" x 48"
(762 x 1219 mm)
1540 lbs
(698.5 kg)
66"x 28" x 54" **
(1676 x 711 x 1372 mm) 224" x 72" (610 x 1829 mm) 1.5" 15.0 gpm (56.8 L/m)
39" x 48"
(991 x 1219 mm)
2090 lbs
(948.0 kg)
82"x 28" x 54" **
(2083 x 711 x 1372 mm) 230" x 72" (762 x 1829 mm) 2" 25.0 gpm (94.6 L/m)
39" x 48"
(991 x 1219 mm)
3280 lbs
(1487.8 kg)
* Non-skidded pre-treatment dimensions are 4" (102 mm) less.
** Skid does not include brine tank. The brine tank is floor mounted.
*** Based on 60 to 90 psi (415 to 620 kPa) inlet pressure.

14 DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Skidded duplex water softener and dechlorinator specifications
Table 14-1:
Skidded duplex water softener and dechlorinator
Skid size
(outside dimensions)
L x W x H
Tank quantity
on skid
Media tank
diameter (A) x
height (B) (per tank)
Connections,
in/out Backwash flow*** Brine tank
diameter (C) x height (D) Shipping weight
66"x 28" x 54"
(1676 x 711 x 1372 mm) 47" × 44" (178 x 1118 mm) 1" 1.35 gpm (4.9 L/m)
18" x 33"
(457 x 838 mm)
490 lbs
(222.3 kg)
66"x 28" x 54"
(1676 x 711 x 1372 mm) 48" x 44" (203 x 1118 mm) 1" 1.7 gpm (6.4 L/m)
18" x 40"
(457 x 1016 mm)
545 lbs
(247.2 kg)
66"x 28" x 54"
(1676 x 711 x 1372 mm) 49" × 48" (229 x 1016 mm) 1" 2.2 gpm (8.3 L/m)
18" x 40"
(457 x 1016 mm)
575 lbs
(260.8 kg)
66"x 28" x 54"
(1676 x 711 x 1372 mm) 410" x 54" (254 x 1372 mm) 1" 2.7 gpm (10.2 L/m)
18" x 40"
(457 x 1016 mm)
640 lbs
(290.3 kg)
66"x 28" x 54"
(1676 x 711 x 1372 mm) 412" x 52" (305 x 1321 mm) 1" 3.2 gpm (12.1 L/m)
18" x 40"
(457 x 1016 mm)
760 lbs
(344.7 kg)
66"x 28" x 54"
(1676 x 711 x 1372 mm) 413" x 54" (330 x 1372 mm) 1" 4.2 gpm (15.9 L/m)
18" x 40"
(457 x 1016 mm)
865 lbs
(392.4 kg)
82"x 28" x 54"
(2083 x 711 x 1372 mm) 414" x 65" (356 x 1651 mm) 1" 5.3 gpm (20.1 L/m)
24" x 41"
(610 x 1041 mm)
1215 lbs
(551.1 kg)
82"x 28" x 54"
(2083 x 711 x 1372 mm) 416" x 65" (406 x 1651 mm) 1" 6.5 gpm (24.6 L/m)
24" x 41"
(610 x 1041 mm)
1363 lbs
(618.2 kg)
82"x 28" x 54" **
(2083 x 711 x 1372 mm) 321" x 62" (533 x 1575 mm) 1.5" 12.0 gpm (45.4 L/m)
30" x 48"
(762 x 1219 mm)
2145 lbs
(972.9 kg)
82"x 28" x 54" **
(2083 x 711 x 1372 mm) 324" x 72" (610 x 1829 mm) 1.5" 15.0 gpm (56.8 L/m)
39" x 48"
(991 x 1219 mm)
3060 lbs
(1387.9 kg)
100"x 34" x 54" **
(2540 x 864 x 1372 mm) 330" x 72" (762 x 1829 mm) 2" 25.0 gpm (94.6 L/m)
39" x 48"
(991 x 1219 mm)
4855 lbs
(2202.2 kg)
* Non-skidded pre-treatment dimensions are 4" (102 mm) less.
** Skid does not include brine tank. The brine tank is floor mounted.
*** Based on 60 to 90 psi (415 to 620 kPa) inlet pressure.

15
DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OVERVIEW
Skidded duplex water softener specifications
Table 15-1:
Skidded duplex water softener
Skid size
(outside dimensions)
L x W x H
Tank quantity on
skid
Media tank
diameter (A) x
height (B) (per
tank)
Connections,
in/out Backwash flow***
Brine tank
diameter (C) x
height (D)
Shipping weight
52"x 26" x 54"
(1321 x 660 x 1372 mm) 37" × 44" (178 x 1118 mm) 1" 1.35 gpm (4.9 L/m)
18" x 33"
(457 x 838 mm)
370 lbs
(167.8 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 38" x 44" (203 x 1118 mm) 1" 1.7 gpm (6.4 L/m)
18" x 40"
(457 x 1016 mm)
410 lbs
(185.9 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 39" × 48" (229 x 1016 mm) 1" 2.2 gpm (8.3 L/m)
18" x 40"
(457 x 1016 mm)
430 lbs
(195.0 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 310" x 54" (254 x 1372 mm) 1" 2.7 gpm (10.2 L/m)
18" x 40"
(457 x 1016 mm)
470 lbs
(213.2 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 312" x 52" (305 x 1321 mm) 1" 3.2 gpm (12.1 L/m)
18" x 40"
(457 x 1016 mm)
550 lbs
(249.5 kg)
52"x 26" x 54"
(1321 x 660 x 1372 mm) 313" x 54" (330 x 1372 mm) 1" 4.2 gpm (15.9 L/m)
18" x 40"
(457 x 1016 mm)
620 lbs
(281.2 kg)
66"x 28" x 54"
(1676 x 711 x 1372 mm) 314" x 65" (356 x 1651 mm) 1" 5.3 gpm (20.1 L/m)
24" x 41"
(610 x 1041 mm)
860 lbs
(390.1 kg)
66"x 28" x 54"
(1676 x 711 x 1372 mm) 316" x 65" (406 x 1651 mm) 1" 6.5 gpm (24.6 L/m)
24" x 41"
(610 x 1041 mm)
958 lbs
(434.5 kg)
100"x 34" x 54"
(2540 x 864 x 1372 mm) 321" x 62" (533 x 1575 mm) 1.5" 12.0 gpm (45.4 L/m)
30" x 48"
(762 x 1219 mm)
1540 lbs
(698.5 kg)
66"x 28" x 54" **
(1676 x 711 x 1372 mm) 224" x 72" (610 x 1829 mm) 1.5" 15.0 gpm (56.8 L/m)
39" x 48"
(991 x 1219 mm)
2090 lbs
(948.0 kg)
82"x 28" x 54" **
(2083 x 711 x 1372 mm) 230" x 72" (762 x 1829 mm) 2" 25.0 gpm (94.6 L/m)
39" x 48"
(991 x 1219 mm)
3280 lbs
(1487.8 kg)
* Non-skidded pre-treatment dimensions are 4" (102 mm) less.
** Skid does not include brine tank. The brine tank is floor mounted.
*** Based on 60 to 90 psi (415 to 620 kPa) inlet pressure.

16 DRISTEEM HIGH-PRESSURE SYSTEM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Reverse osmosis specifications
OVERVIEW
REVERSE OSMOSIS STATION
The reverse-osmosis (RO) station is floor-mounted and removes approximately 98% of total dissolved solids.
Table 16-1:
400 series RO station specifications
Model 401* 402* 403** 404** 406** 408** 412**
Permeate flow rate,
lbs/hr (kg/hr) or
GPD (LPD)
50 ºF (10 ºC)
(see Note 4)
250 (115)
720 (2,760)
500 (230)
1,435 (5,520)
1,000 (455)
2,870 (10,920)
1,750 (795)
5,025 (19,080)
2,500 (1,140)
7,175 (27,360)
3,500 (1,590)
10,045 (38,180)
5,500 (2,500)
15,785 (60,000)
Permeate flow rate,
lbs/hr (kg/hr) or
GPD (LPD)
77 ºF (25 ºC)
(see Note 4)
620 (280)
1,800 (6,810)
1,040 (470)
3,000 (11,350)
1,800 (821)
5,170 (19,570)
2,250 (1,020)
6,500 (24,600)
3,475 (1,580)
10,000 (37,850)
4,510 (2,050)
13,000 (49,200)
6,600 (3,000)
19,000 (71,910)
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)
28/26/63
(711/660/1600)
28/26/63
(711/660/1600)
28/26/63
(711/660/1600)
37/26/63
(940/660/1600)
37/26/63
(940/660/1600)
46½/26/63
(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" hose barb ¾" hose barb ¾" hose barb ¾" hose barb ¾" hose barb ¾" hose barb ¾" hose barb