ATS DWS-7 User manual

Dealer Info:
Installation, Operation and
Maintenance Manual
CAUTION: Read and Follow all safety rules and
operating instructions before first use of product.
Ultraviolet Disinfection Systems
Models:
DWS- 7,15
DRINKING WATER STERILIZER

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Installation Instructions:
General Safety Instructions ............................................................................... 4
Function / Description ...................................................................................... 5
Installation ........................................................................................................ 6
Installation Diagram .......................................................................................... 7
Electronic Controls & Startup Procedure .......................................................... 8
Lamp Status Indicator: .................................................................................................. 9
Sanitation Procedure: .................................................................................................... 10-11
Maintenance: ..................................................................................................................... 12
Wiring Diagrams: ............................................................................................................. 13
Parts Breakdown: ............................................................................................................. 14-17
Troubleshooting/Water Sample Procedure: ...................................................................... 18
Specifications: ................................................................................................................... 19
Warranty: .............................................................................................................................. 20
Table of Contents
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WARNING - to guard against injury, basic safety
precautions should be observed, including the
following:
1. READ AND FOLLOW ALL SAFETY
INSTRUCTIONS.
2. DANGER - To avoid possible electric shock, special
care should be taken since water is present near electrical
equipment. Unless a situation is encountered that is
explicitly addressed by the provided maintenance and
troubleshooting sections, do not attempt repairs yourself,
refer to an authorized service facility.
3. Carefully examine the disinfection system after
installation. It should not be plugged in if there is water on
parts not intended to be wet.
4. Do not operate the disinfection system if it has a
damaged power cord or plug, if it is malfunctioning or if it
is dropped or damaged in any manner.
5. Always shut off water flow and unplug the disinfection
system before performing cleaning or maintenance
activities. Never pull on the power cord to remove it from
an outlet. Grab the plug and pull to disconnect.
6. Do not use this disinfection system for anything other
than the intended use (potable water applications.) The use
of attachments not approved, recommended or sold by the
manufacturer / distributor may cause an unsafe condition.
7. Intended for indoor use. Do not install this disinfection
system where it will be exposed to the weather. Do not
store this disinfection system where it will be exposed
to temperatures below freezing unless all the water has
been drained from it and the water supply has been
disconnected.
8. Read and observe all the important notices and warnings
on the water disinfection system.
9. If an extension cord is necessary, a cord with a proper
rating should be used. A cord rated for less Amperes or
Watts than the disinfection system is rated for may cause
over heating. Care should be taken to arrange the cord so
that it will not be tripped over or accidentally pulled from
the outlet.
1. SAVE THESE INSTRUCTIONS.
2. WARNING: The ultraviolet light given off by this unit
can cause serious burns to unprotected eyes and skin.
Never look directly at a lit U.V. lamp. When performing
any work on the U.V. Disinfection System, always unplug
the unit first. Never operate the U.V. system while the
lamp is outside of the U.V. chamber.
3. WARNING: The U.V. lamp inside of the disinfection
system is rated at an effective life of approximately 9,000
hours. To ensure continuous water treatment, replace the
U.V. lamp annually with the appropriate Aqua Treatment
Services U.V. lamp. Failure to comply may present a re
hazard.
General Safety Instructions
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Function
Description
The function of this ultraviolet disinfection unit is to provide in excess of 99.9% reduction of all water borne pathogenic
(disease causing) bacteria.
Model DWS series have a number code designation correspondent to the maximum GPM
(gallons per minute) flow rate of the unit. I.E,- DWS-7 has a maximum flow capacity of 7 GPM.
Applications: DWS Units are designed to destroy micro-organisms in water supplies. The Ultraviolet lamp peak
radiation of 254 nanometer wavelength (nm) destroys or inactivates the D.N.A. (deoxyribonucleic acid) which absorbs the
Ultraviolet radiation. These units meet minimum dosages of 30,000 microwatt second per square centimeter.
MAXIMUM CONCENTRATION LEVELS BEFORE ULTRAVIOLET:
Turbidity.................................5 NTU Hardness..........................................7 gpg
Color.......................................None Iron...................................................0.3 ppm
Manganese........................0.05 ppm pH....................................................6.5 - 9.5ppm
*Note: Pre-ltration equipment may be required if these parameters cannot be maintained. Flow rate must not exceed
rated capacity of the unit.
The DWS series has an unique design with an ultraviolet germicidal lamp housed within a single quartz sleeve
surrounded by a stainless steel pressure chamber. The chamber is fabricated out of 304 Stainless Steel. A removable
stainless steel cover exposes electrical components for servicing, when required.
The DWS series come with an U.V. lamp designed with one pin at the end. This type of lamp has a socket connected to
each pin.
A stainless steel threaded nipple with a brass compression nut and O-Ring is located at each end of the disinfection
chamber.
The quartz sleeve is intended to be placed through the disinfection chamber and will slightly protrude through the
threaded nipple. The ultraviolet lamp is placed within this quartz sleeve. The U.V. light shines through this specially
designed hard quartz sleeve for maximum disinfection efficiency to meet the requirements for bacteria reduction in
potable water.
The inlet/outlet are located on one side of the chamber and may be interchanged as to designation dependent upon
installation. A site port is provided for safe and easy view of operation.
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Installation
GENERAL CONSIDERATIONS FOR ALL
DISINFECTION UNITS:
1. When installing the equipment, it is necessary that the
unit be isolated from vibration, heavy equipment, and
poorly connected piping.
2. Incoming water temperature to the unit should not
exceed 35° minimum to 110° maximum degrees Fahrenheit.
3. The operating pressure should not exceed 100 psi.
4. Before putting the unit into final operation follow
sanitation procedures as outlined in this manual for proper
disinfection. Sanitizing all discharge piping and fittings
with household bleach from disinfection unit to point of
use removes existing contaminants and gives the unit a
“clean start.” Be sure to rinse with U.V. treated water.
5. A proper flow control, included with the unit, must be
use to insure only the designated flow through the unit.
6. It is recommended to use UV resistant materials when
initially installing unit. The UV light can cause PVC or
other plastic materials to degrade. Becoming brittle, this
can compromise the pipe or fitting structural integrity.
GENERAL PRECAUTIONS TO BE FOLLOWED
AT ALL TIMES:
1. Always disconnect electrical power to any U.V. unit
before servicing.
2. Under no circumstances should personnel look at a U.V.
lamp in operation (EXCEPT through an external sight Port
lens located on the outside of the unit).
3. U.V. disinfection units must always be properly grounded.
The DWS series are always placed after the pressure
tank and any other type of treatment devices (i.e.
softeners, filters).
These units are normally installed in a vertical position in
an enclosed area with good ventilation. Allow clearance of
at least the unit’s length at one end for quartz sleeve and
lamp replacement. Four (4) anchor bolt holes are provided
for proper wall support. Use anchors with screws for
sufficient support (not included). A lock nut secures the
mounting bracket to the U.V. chamber.
If your piping system is subject to impulse pressure resulting
in a “water hammer” condition, a surge tank or other means
must be provided to remove this condition; otherwise, this
extreme shock pressure condition may rupture or fracture
the quartz sleeve.
Make all plumbing connections to allow for ease of service.
Be sure to follow all local plumbing codes and U.V.
restriction requirements where specied by local authorities.
STEP BY STEP INSTALLATION:
1. Turn off the water before cutting into the water line.
2. Assess the installation (i.e. type of pipe, size of lines,
etc.) and obtain necessary plumbing ttings for installation.
Inlets and outlets on 8 gpm units are 3/4” MNPT. Use
Teon tape on all threaded connections and avoid iver
tightening.
NOTE:
The ow control is a press in type. Each unit has
a 3/4” MNPT inlet/outlet machined so the press in
ow control can be easily inserted into whichever
port you select for the inlet. Make sure the rubber
part of the ow control is facing outward from the
port selected. Simply hand press or slightly tap in
the ow control until it sits on the inside ledge of the
machined port.
3. Using the mounting bracket provided, secure unit to
wall, or other surface. Make sure to allow enough room
to install, replace, and clean the quartz sleeve and lamp.
Installing a water shut-off valve before and after the unit is
recommended to make servicing easy.
4. After mounting, install quartz sleeve, O-Ring, and lamp
per instructions. Turn on the water slowly, check for leaks,
and repair as needed prior to full service operation.
5. After the unit is full of water, plug it into a grounded
110V outlet. Observe operation through the Site Port.
The lamp will show a bright blue glow. If any problems
are noted, consult trouble shooting guide.
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Installation Diagram
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ATS-280CB
RESET BUTTON
(MOUNTED UNDER TOP PLATE)
OUTLET
MAINS
BALLAST
LAMP

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Electronic Controls & Startup Procedure
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OPERATING INSTRUCTIONS
Your DWS System is equipped with the ATS-280CB U.V. Lamp Detector and Timer circuit board which is designed to
provide a continuous monitoring system of the UV lamp operational status. This solid state electronic circuit board provides
the latest in U.V. lamp monitoring technology.
U.V. LAMP / CONTROL BOX START UP PROCEDURE - (4 Step Process)
1. Make sure the U.V. lamp is inserted per instructions into the quartz sleeve and U.V. chamber. Then plug the U.V. lamp into
the lamp connector.
2. Plug the electrical control box into a 110volt wall plug outlet.
3. Upon start up the U.V. lamp Detector and Timer circuit board will perform a self diagnostic test. When power is applied
the U.V. lamp will go on and a circuit board output check is performed as follows:
• Quick Beep
• Green LED on, then off
• Red LED on, then off
• Solenoid / Relay connection on, then off
• Pause with beeps
• Green LED on = System Check OK, U.V. System is operational.
4. Set the 1 Year Lamp Timer – WITH NEW U.V. LAMP –
Make sure the control box is plugged into the wall outlet and the U.V. lamp is on. Press and hold the reset push button. A tone
that descends in frequency once per second will be heard. Hold the reset button down for approximately 5-8 seconds until
you hear a continuous tone, at this point release the button. The 1 year lamp timer has just been reset.
U.V. lamp Detector and Timer circuit board Lamp Operation and Alarm features:
• U.V. System OK – Green LED will flash every 5 - 10 seconds.
• 30 Days remaining on Lamp Life – Flashing Yellow LED with an intermittent audible tone.
• End of Lamp Life- Flashing Red LED with an intermittent audible tone.
• Lamp Out- Continuous Red LED with a continuous audible tone.
•If your U.V. System has a 120Vac Normally Closed Solenoid Valve or Remote Alarm connected to the U.V. Unit plug-in
connection, this will activate End of Lamp Life or Lamp Out alarm.
To Silence the Audible Alarm with Snooze Button:
1. 30 Days remaining on Lamp Life Alarm - Push reset button – Silences the audible tone for two weeks while the Yellow
LED continues to Flash. (You can Silence audible alarm 2 times Max.) You have up to 30 days to replace the lamp.
2. Service Unit -Replace the U.V. Lamp within 30 Days.
3. End of Lamp Life Alarm - Push reset button- Silences the audible tone for one week while the RED LED continues to flash.
(You can Silence audible alarm 4 times Max.) Service Unit Immediately - Replace the U.V. Lamp.
4. Lamp Out Alarm- Push reset button- Silences the audible tone for one week while the continuous Red LED stays on. (You
can Silence audible alarm 1 time only.) Service Unit Immediately - Replace the U.V. Lamp.

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Lamp Status Indicator
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To Find out how many Months are left on the Lamp Timer - Push the reset button for 1-2 seconds then release. After
an initial sound there will be a pause followed by beeping and a flashing LED. The number of beeps corresponds the
number of months left on the lamp life.
To Reset 1 Year Lamp Timer – WHEN REPLACING THE U.V. LAMP. Unplug the control box from the wall outlet.
Unplug the U.V. lamp from the Lamp connector. Replace with a new U.V. Lamp. Make sure the control box is plugged
into the wall outlet and the U.V. lamp is on. Press and hold the reset push button. A tone that descends in frequency once
per second will be heard. Hold the reset button down for approximately 5-8 seconds until you hear a continuous tone. At
this point release the button. The 1 year timer has just been reset.
LAMP STATUS INDICATOR / U.V. LAMP ADVISOR:
NOTE: During normal operation, the Green LED will ash every 5 - 10 seconds.
Please contact your local dealer for replacement UV lamps.
Refer servicing to qualied service personnel.

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Sanitation Procedure
continue to run pump if water doesn’t ow.
B.The high level of chlorine required to sanitize
a water system is corrosive to most metals and
chlorine solution must not be allowed to remain in water
system more than 36 hours before being completely ushed
from system.
8. After system has been completely ushed, perform a
bacteriological analysis on the water following all applicable
procedures.
NOTE: Always follow the sanitizing procedure required by
applicable state or local laws.
EPA Registered: Well sanitizer pellets are EPA Registered
for sanitizing potable water. EPA Registration No. 50510-1
LARGE DIAMETER WELLS:Dug or bored wells
should be disinfected in the same way as a drilled one. Lower
the water level as much as possible, remove the sand, silt
and debris, and then treat with the chlorine solution. Mix
thoroughly by circulating the water back into the well and
use the hose to rinse the interior lining of the well. Do not
try to disinfect an unprotected, unlined well because new
seepage or surface contamination will flow into the water
nearly as fast as you can disinfect it. Disinfect the pipeline
distribution system as indicated for drilled wells.
SPRINGS AND CISTERNS: Mix about ½ cup of
household bleach in 5 gallons of water and use this to
scrub the walls of the spring box or holding tank. With
a constant ow of fresh water from the spring, there is
probably no way of detaining the chlorine solution in the
reservoir for more than a few minutes. However, the
chlorinated water should ow through the pipeline to
disinfect the distribution system. Cisterns can be disinfected
in the same way but a source of clean water will be needed to
ush the dirty waste out of the system.
For additional information about how to protect wells and
springs and keep them from becoming contaminated, call or
visit your local Cooperative Extension ofce, or your nearest
certied water treatment specialist.
TABLE 1 ** Quantity of solution mixed - 5.25% available
chlorine (laundry bleach) for disinfecting
wells, or 52,500 P.P.M..
WQA recommends 50mg/l or ppm chlorine concentration.
Formula - C2 X V2 / C1 = V1
C1= Household Bleach (52,500 P.P.M.)
V1= Chlorine Amount Needed
C2= 50 mg/L V2= 80 gallons holding time
I.E. 50-ml/g X 80 gal= 4000/52,500= .08 gallons of chlorine (5.25%)
.08 gal chlorine (5.35%) X 128 (oz/gal) = 10.24 oz (5.25%)
Dug Wells - 3 to 4 feet diameter - 4 cups per foot of water
Drilled Wells - 3 to 8 inch diameter - 1 cup per foot of water
HOW TO DISINFECT A WATER SYSTEM:
Every new well, or existing water supply system that
has been disrupted for service or repair, should be
disinfected before it is returned to use. Water in the
well and storage tank should be treated with a strong
chlorine solution to destroy disease organisms. All pipelines
and xtures in the distribution system should be rinsed
and ushed with chlorinated water. Upon installation of
a U.V. disinfection unit or yearly bulb replacement service,
disinfection with chlorine to initially ush the system is
recommended to assure line sanitation prior to U.V. start up.
The source of chlorine can be ordinary household liquid
laundry bleach (about 5.25% available chlorine). The
quantity required depends on the volume of water to be
treated. The United States Environment Protection Agency
(EPA) indicated that about 100 parts of chlorine, by weight,
mixed in a million parts of water will destroy essentially all
water-borne disease organisms. Table 1 shows the quantity
of liquid bleach required to disinfect wells of various
diameters and depths.
DISINFECTION PROCEDURE:
1. Remove the cap or seal from the casing and measure
the depth of the water in the well, then refer to Table 2
to determine how many chlorine pellets should be used.
In some instances removing the seal to measure the water
can be a difficult task, and it is easier to estimate well and
water depth from well log or other records.
2. Remove well cap and determine if there is an unobstructed
path from the top of the well to the water level. If it is not
possible to remove the well cap, remove vent or sanitation
access plug.
3. Drop one pellet into the well and listen to hear if it hits the
water. If the pellet hits the water, drop one-half the number
of pellets determined to be needed into the well. These will
sink to the bottom and sanitize the lower part of the well.
4. Mix the remaining pellets in a few gallons of water in a
CLEAN plastic container and pour the solution into the well.
5. In order to mix the chlorine thoroughly throughout the
entire water system, it is necessary to recirculate the water in
the well. This can be accomplished by connection a hose to
an out side faucet that is located after the pressure tank. Use
hose to run water back down the well (this also rinses upper
portion of well). After about 15 minutes of recirculation the
water, a strong chlorine odor should be apparent. Turn off
hose.
6. Bypass water softener and filters and open each water
outlet in the water system until chlorine is present in water.
This procedure assures that all the water in the system is
chlorinated.
7. Allow the chlorinated water to stand in the system for
at least one (1) hour, and preferable overnight. After this,
open an outside faucet system until water runs chlorine free.
Repeat flush operation on each faucet in system.
NOTE:
A. Chlorine may break loose iron deposits, slime and organic
material. This material will make the water discolored. The
material broken loose may plug pump screens. Do not
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Sanitation Procedure
TOO MUCH CHLORINE IS BETTER THAN
TOO LITTLE: **
In situations where it is inconvenient to determine depth
of water or diameter of a drilled well, a minimum of 1/2
gallon of household bleach may be used for wells up to
8 inches in diameter with estimated to be less than 80
feet deep; 1 gallon should be used for similar size wells
with water deeper than 80 feet. In case of a well yielding
more than 50 gallons per minute, special procedures are
required. Seek the advice of a certied water treatment
specialist.
Wait a day or two before you have another sample tested.
Do not take a sample for testing if the odor of chlorine is
still present in water.
REMEMBER - To make your water supply safe:
• Locate your well properly.
• Protect it from surface contamination.
• Test water periodically for coliform bacteria. (Home-
yearly, Farm-2X yearly)
• Chlorinate, or lter and disinfect the water if necessary.
Plumbing Line Sanitation Only:
When installing an ultraviolet disinfection system, a
prelter with sump may serve as a source to sanitize the
water lines only. For whole system disinfection follow
procedure as outlined above.
Source: The Pennsylvania State University College of
Agriculture Cooperative Extension.
TABLE 2
NOTE:
Pellets Weight = 1.14 gram each, 25 pellets/oz., 400 pellets/lb.
1 cup of pellets = 1/2 lb., or 200 pellets, or 8 oz.
To produce a 400 P.P.M. chlorine concentration, to sanitize
a water system, use one-half (1/2) pound chlorination
pellets for each 100 gallons of water in the system (1/2
lb/100 gal= 8 oz/100 gal= 200 pellets/ 100 gal= 1 cup
pellets/100 gal). Table 2 shows how many pellets too use
per 100 feet of water in various diameter wells.
2
3
4
5
6
8
10
12
24
36
0 - 1.5
0 - 3.0
0 - 6.0
0 - 8.0
0 - 12.0
1 - 5.0
2 - 0
3 - 0
12 - 0
26 - 0
1/4
2/5
3/4
1
1-1/2
2-1/2
4
6
24
---
40
80
140
200
300
500
800
----
----
----
Well Diameter Inches Weight of Pellets lbs. - oz. Cups of Pellets Number of Pellets
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TABLE 2:
How to Sanitize a Water System Using Well Sanitizer Pellets

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Maintenance
sleeve). Replace O-Ring [ATS8-544(1)] every time a quartz
sleeve is cleaned or replaced. We reccommend replacing the
quartz sleeve once a year.
U.V. LAMPS:
INSTALLATION OF THE ULTRAVIOLET LAMPS:
**DO NOT PUT POWER ON AT THIS TIME!**
CAUTION: Never operate or look directly at U.V.
lamp outside the disinfection chamber.
Make sure unit is unplugged when installing or servicing
ultraviolet lamp. Remove any paper tabs on the U.V. lamp
and avoid allowing ngerprints and other debris to deposit.
Carefully place the lamp inside the quartz sleeve leaving
enough space to connect the socket connector to the lamp
pins. Then gently slide the brass dust cap over the end nut,
securing the lamp and protecting it from dust.
ULTRAVIOLET LAMP MAINTENANCE
REQUIREMENTS:
The U.V. lamp is rated for 9,000 hours of continuous use.
After this period of time, the U.V. lamp has undergone a
photochemical change. While the lamp will not normally be
burned out, the lamp quartz may no longer emit the 254-nm
shortwave U.V. to effectively kill bacteria. Failure to replace
the U.V. lamps every 9,000 hours may cause bacteriological
breakthrough. Should the use of the disinfection unit be
intermittent, in no case should the U.V. lamp be used for
more than 24 months regardless of the number of hours
of operation due to normal shelf life degradation of the
U.V. bulb. Changing the quartz sleeve should be done
at the same time U.V. lamp replacement is scheduled.
It is recommended that your water supply be tested
periodically (yearly) through your local health department or
approved certied laboratory.
ELECTRICAL:
The DWS/DWSW series are furnished with 6’ line cord that
will plug into a 110V outlet. Electrical receptacles must be
properly grounded for safe operation. Improper grounding
will void any warranty.
When possible use a separate breaker to minimize voltage
uctuations and avoid accidental shut off. After unit is
installed and water is turned on, plug the unit into 110V wall
receptacle. View lamp operation through safety Sight Port
lens.
NOTE: Avoid exposing your eyes to U.V. light.
QUARTZ SLEEVE:
Installation of the Quartz Sleeve:
Always handle quartz sleeves carefully to prevent breaking
or chipping. The quartz sleeves are to be clean and free of
ngerprints before installing.
Remove the compression nut. Install the quartz
sleeve through the stainless steel threaded nipple
allowing an equal amount to extend beyond each
nipple. Install the O-Ring down the top of the
nipple. Avoid riding the O-Ring on any threaded part of
the nipple. Hand-tighten each compression nut to form a
compression seal around the quartz sleeve. Avoid over tightening
the nuts, which may cause a fracture on the end of the quartz
sleeve. Under normal operation conditions, hand-tightening
will provide a 100 psi seal. Do not use any devices to tighten end
nuts. Repeat this procedure at the opposite end of the chamber.
After you have tightened the compression nut and
all other plumbing connections, open the outlet
valve. Slowly open the inlet valve and flush out
all remaining air. Then close the outlet valve and
slowly open the inlet valve fully. Check the unit for leaks.
If you nd a leak at the compression nut, tighten the nut
further. If the leak continues, drain the unit and inspect
the quartz O-Ring and quartz sleeve for proper seal. Once
you complete checking the unit, reassemble O-Ring and
tighten gland nut. Repressurize the unit and check again.
REQUIREMENTS FOR CLEANING THE QUARTZ
SLEEVE:
As water passes through the U.V., minerals, debris and other
matter in the water may deposit onto the quartz sleeve. After
sufcient lm has formed on the quartz sleeve, the ability of
the ultraviolet germicidal rays to pass though the quartz sleeve
and into the water may be impaired. Therefore, it is necessary
to determine a cleaning schedule for the quartz sleeve. The
frequency will depend on the specic type of water conditions.
If the water has been processed through deionization, reverse
osmosis, or is distilled, cleaning may be required only once per
year. If untreated water is used, the cleaning frequency will
vary. A minimum of once yearly is standard recommendation
for cleaning and lamp replacement. Contact your local dealer
for scheduling this service. Your specic situation will vary the
frequency time according to the water quality of the home or
facility application.
QUARTZ SLEEVE CLEANING PROCEDURES:
To clean the quartz sleeve, turn off the water ow to the
disinfection unit, turn power off, and at a separate faucet or
valve relieve the water pressure from the UV. Then disconnect
the electrical service to the lamp pins. Carefully remove the
U.V. lamp. Loosen the end nut with O-Ring and remove the
quartz sleeve. The quartz sleeve may then be washed with a
mild soap and hot water solution and rinsed clean with hot
water. Should this be insufcient to clean the quartz sleeve,
a mild acid may be used (i.e. vinegar). Be certain to follow
all recommended safety and handling procedures on the acid
container. It is important to handle the quartz sleeve with care
to prevent breakage. Make certain that all nger prints are
wiped clean before reinstalling (see installation of the quartz
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Wiring Diagram
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14
Parts Breakdown DWS - 7
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14 11
8
5
1213
4
2
10
1
9
15 763
16
NOTE:
REPLACEMENT KIT ATS-4025 AVAILABLE
INCLUDES;
ATS-N1156, ATS5-411, ATS-4010, ATS8-544,
ATS-7030, ATS8-546
ITEM
NO.
PART NUMBER DESCRIPTION QTY.
1 ATS-5100 Chamber 1
2
ATS-5172 Sightport Lens 1
3
ATS-5173
Orange .7" OD
Viewport O Ring
1
4
ATS-5171 Sightport Nut 1
5
ATS5-411 Brass End Nut 2
6
ATS8-544 Orange 1.2" OD ORing 2
7
ATS8-546 Black 1.5" OD ORing 2
8
ATS-N1156 Brass Shroud 2
9
ATS-4010
Single Pin Connector &
Cord
2
10 ATS-7GPM 7 GPM Flow Control 1
11 ATS-CO4700 Cover 1
12 ATS6-211 Open Ended Quartz 1
13 ATS1-805 UV Bulb 1
14 ATS1-421-DWS7 Ballast 1
15 ATS-7030 Rubber Grommet 2
16 ATS-079 1" Solenoid (OPTIONAL) 1
DO NOT SCALE DRAWING
SHEET 1 OF 1 SCALE: WEIGHT:
REV DWG. NO. SIZE
TITLE
NAME DATE
MFG APPR.
ENG APPR.
CHECKED
FINISH
MATERIAL
5
4
3
2
1
BAG DRAWN
A
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
AQUA TREATMENT SERVICES. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
AQUA TREATMENT SERVICES IS
PROHIBITED.
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
.25"
TWO PLACE DECIMAL
.010"
THREE PLACE DECIMAL
.002"
UNLESS OTHERWISE SPECIFIED:
3/26/2015
A
DWS-7 CUSTOMER MANUAL

Purificare ©2015 15
DWS - 7 Parts List
DWS © 2019 • www.aquat.com
CODE PART# DESCRIPTION QTY.
1 ATS-5100 Chamber 1
2 ATS-5173 Site Port O-Ring 1
3 ATS-5172 Site Port Lens 1
4 ATS-5171 Site Port Nut 1
5 ATS8-544 End Nut O-Ring (seal quartz sleeve) 2
6 ATS5-411 Brass End Nut 2
7 ATS8-546 O-Ring (for shroud on end nut) 2
8 ATS-4010 Socket w/ Wire 2
9 ATS-N1156 Brass Shroud 2
10 ATS-7030 Grommet (for wire assy. in shroud) 2
11 ATS-R01 3/4”Flo.-Et. Retainer 7 gpm 1
12 ATS-F07 7 gpm Flo.-Et. 1
13 ATS-4000 Power Cord 1
14 ATS-6L1 Strain Relief (for Power Cord) 1
15 ATS1-421-CCASE Ballast 120V/60Hz 1
16 ATS6-211 Quartz Sleeve 1
17 ATS1-805 Bulb 1
18 ATS-6100 Cover w/ Hole for Plastic Lens 1
19 ATS-7600 Plastic Sight Lens (for cover) 1
KITS
ATS-4025 Kit: 5 thru 10
ATS-5177 Lens Kit: 2 thru 4

Purificare ©2015
16
Parts Breakdown DWS -15
DWS © 2019 • www.aquat.com
172
4
12
716 9863
13
11
1410
1
15
5
NOTE:
REPLACEMENT KIT ATS-4025 AVAILABLE
INCLUDES;
ATS-N1156, ATS5-411, ATS-4010, ATS8-544,
ATS-7030, ATS8-546
ITEM
NO.
PART NUMBER DESCRIPTION QTY.
1 ATS-5200 Chamber 1
2
ATS-5210 Top Plate 1
3
ATS-5172 Sightport Lens 1
4
ATS-5173
Orange .7" OD
Viewport O Ring
1
5
ATS-5171 Sightport Nut 1
6
ATS5-411 Brass End Nut 2
7
ATS8-544
Orange 1.2" OD
ORing
2
8
ATS8-546 Black 1.5" OD ORing 2
9
ATS-N1156 Brass Shroud 2
10
ATS-4010
Single Pin
Connector & Cord
2
11
ATS-15GPM
15 GPM Flow Control
1
12
ATS-6200 Cover 1
13
ATS-079
1" Solenoid
(OPTIONAL)
1
14
ATS-7030 Rubber Grommet 2
15
ATS6-608 Open Ended Quartz 1
16
ATS8-246 UV Bulb 1
17
ATS1-421-DWS15 Ballast 1
DO NOT SCALE DRAWING
SHEET 1 OF 1 SCALE: WEIGHT:
REV DWG. NO. SIZE
TITLE
NAME DATE
MFG APPR.
ENG APPR.
CHECKED
FINISH
MATERIAL
5
4
3
2
1
BAG DRAWN
A
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
AQUA TREATMENT SERVICES. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
AQUA TREATMENT SERVICES IS
PROHIBITED.
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
.25"
TWO PLACE DECIMAL
.010"
THREE PLACE DECIMAL
.002"
UNLESS OTHERWISE SPECIFIED:
3/27/2015
A
DWS-15 CUSTOMER MANUAL

Purificare ©2015 17
DWS - 15 Parts List
DWS © 2019 • www.aquat.com
CODE PART# DESCRIPTION QTY.
1 ATS-5200 Chamber 1
2 ATS-5173 Site Port O-Ring 1
3 ATS-5172 Site Port Lens 1
4 ATS-5171 Site Port Nut 1
5 ATS8-544 End Nut O-Ring (seal quartz sleeve) 2
6 ATS5-411 Brass End Nut 2
7 ATS8-546 O-Ring (for shroud on end nut) 2
8 ATS-4010 Socket w/ Wire 2
9 ATS-N1156 Brass Shroud 2
10 ATS-7030 Grommet (for wire assy. in shroud) 2
11 ATS-R02 3/4”Flo.-Et. Retainer 12 - 15 gpm 1
12 ATS-F15 15 gpm Flo.-Et. 1
13 ATS-4000 Power Cord 1
14 ATS-6L1 Strain Relief (for Power Cord) 1
15 ATS1-421 Ballast 120V/60Hz 1
16 ATS8-246 Bulb 1
17 ATS6-608 Quartz Sleeve 1
18 ATS-6200 Cover w/o Hole for Plastic Lens 1
19 ATS-7600 Plastic Sight Lens (for cover) 1
KITS
ATS-4025 Kit:5 thru 10
ATS-5177 Lens Kit: 2 thru 4

Purificare ©2015
18
Troubleshooting Guide
PROBLEM CAUSE CORRECTION
U.V. lamp will not light
DWS © 2019 • www.aquat.com
Sterile Water Sample Procedure
Fig 1
SUGGESTED PROCEDURE FOR OBTAINING
STERILE WATER SAMPLES:
Prior to taking the water sample, be sure to have on hand an
adequate supply of sterile bottles (as shown in Fig 1). These
sterile bottles should be obtained from a reputable laboratory
and should have been autoclaved and contained within a
plastic outer wrapping.
1. Prior to taking the sample, it is imperative that the sample
valve, faucets, etc. be opened at full force for a complete three
and a half minutes.
2. After the valve has been left fully opened for three and
one half minutes, reduce the flow to a reasonable stream of
water. Flow to drain an additional three minutes.
3. Open the sterile bottle or sterile container being used.
Holding the cap in a down position, the operator should then
hold his breath while taking the sample so as to avoid oral
contamination of the sample. The operator must not allow his
finger to touch the inside of the cap or the neck of the bottle.
4. After the sample has been taken, the cap should be tightly
placed on the sample container.
5. The sample container should be placed in a plastic
wrapping, kept cool, and should be taken to the laboratory
for testing as soon as possible following the above procedure.
We recommend duplicate samples be taken at each test
station during each specific test so as to avoid loss of
sample through laboratory error and to insure
reasonable validity through comparison.
Check with your local laboratory to assure proper
sampling and submittal procedure.
Check input voltages if below or above 110V Install a voltage regulator
Electrical cord disconnected or outlet
defective
Check, replace
Defective UV Lamp
Defective Lamp Ballast
Loose open-circuit wire
Replace Lamp
Check output voltage. Replace
ballast
Trace out and repair
Leak at Quartz nipple Defective or cracked O-Ring
O-Ring not seated properly
Cracked Quartz Sleeve
Replace O-Ring
Replace O-Ring
Replace Quartz Sleeve

Purificare ©2015 19
DWS 7,15 Specifications
DWS © 2019 • www.aquat.com

Purificare ©2015
20
Warranty
DWS © 2019 • www.aquat.com