PurTest PT-8 User manual

American Water Service
104 Associates Lane
Indian Trail, NC 28079
704-821-3200 Phone
704-821-3232 Fax
EPA PRODUCT REGISTRATION #
062333-PA-001
Installation, Operation and
Maintenance Manual
CAUTION: Read and Follow all safety rules and
operating instructions before first use of product.
During normal operation, the Green LED
will flash every 5 - 10 seconds.
PT Series
Ultraviolet Disinfection Systems
MODEL:
PT-8
PT-12
PT-20
Revised: 7/2015
It is important that those responsible for the installation
of this equipment, as well as the owner / operator, read this
manual and carefully follow the instructions and guidelines.

2
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.
A dedicated electrical circuit rated with GFI
protection is recommended.
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 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 light given off by this unit can cause
serious burns to unprotected eyes and skin. Never look
directly at a lit UV lamp. When performing any work on
the UV Disinfection System, always unplug the unit first.
Never operate the UV system while the lamp is outside of
the UV chamber.
3. WARNING: The UV lamp inside of the disinfection
system is rated at an effective life of approximately 9,000
hours. To ensure continuous water treatment, replace the
UV lamp annually with the appropriate Aqua Treatment
Services UV lamp. Failure to comply may present a fire
hazard.
General Safety Instructions
What's Included in your UV System
1. UV Chamber
2. Electronic Control Box
3. Flow Control
4. UV Lamp
5. Quartz
6. O-Ring
7. End Nut
8. Bottom Mounting Bracket

3
Function
Description
The function of this ultraviolet disinfection unit is to provide in excess of 99% reduction / inactivation of all water
borne pathogenic (disease causing) bacteria.
Model PT series have a number code designation correspondent to the maximum gpm
(gallons per minute) flow rate of the unit. I.E.- PT-8 has a maximum flow capacity of 8 gpm.
Applications: PT Units are designed for reduction / inactivation of micro-organisms in water supplies. The Ultraviolet
lamp peak radiation of 254 nanometer wavelength (nm) reduces or inactivates the D.N.A. (deoxyribonucleic acid) which
absorbs the Ultraviolet radiation. PT 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
Important Note - Pre-filtration equipment may be required if these parameters cannot be maintained. Flow rate must
not exceed rated capacity of the unit.
The PT 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.
These units come with an ultraviolet lamp designed with four pins at one end and a domed end quartz sleeve to protect
the UV lamp from direct contact with the water and a control box.
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 is located on the bottom of the chamber and the outlet can be located on the top side of the UV chamber
dependent upon the installation option selected. A sight Port is provided for safe and easy view of UV operation. A
bracket is secured to the wall and the chamber is held in place by tightening the lock nut to both mounting bracket and
chamber. A UV Control Box operates and monitors the UV Lamp status and provides visual and audible alarms when
the UV lamp is out or requires Lamp replacement.

4
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 flow control, included with the unit, must be
installed to insure only the designated flow through the
unit for proper disinfection.
GENERAL PRECAUTIONS TO BE FOLLOWED
AT ALL TIMES:
Only qualified persons or licensed professionals should be
involved in the installation or service maintenance of this
system. Contact PurTest with any questions prior to
working on this system.
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 PT 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. Two (2) anchor bolt holes are provided
for proper wall support. Use wall plugs 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 specified by local
authorities.
UV CHAMBER & CONTROL BOX MOUNTING
The UV Chamber and Control Box design allows for
several mounting configurations. The Control Box comes
standard mounted to the UV Chamber as shown in Option
A Installation Diagram on Page 5.
The Control Box may be removed and mounted on the
wall right next to the UV Chamber as shown in Option B
or C on the installation diagram. (Wall mount screws are
not included).
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 fittings for installation.
Inlets and outlets on PT units are 3/4” FNPT and 1”
MNPT. Use Teflon tape on all threaded connections and
avoid over tightening.
Note: The flow control is a press in type. All UV
chambers come standard with a 3/4" FMPT connection
and a 1" MNPT connection on the Inlet / Outlet nipple.
Make sure the rubber part of the flow control is facing
outward from the bottom inlet. Simply hand press or
slightly tap in the flow control until it sits on the inside
ledge of the machined bottom inlet. (see Installation
Diagram on page 5)
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, and O-Ring, per
Quartz Sleeve instructions on Page 8. 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 at GFI
protected and grounded 110V outlet. Observe operation
through the safety sight Port. The lamp will show a bright
blue glow. If any problems are noted, consult trouble
shooting guide.
UV CONTROL BOX START UP PROCEDURE
Make sure the UV lamp is inserted per instructions into
the quartz sleeve and UV chamber. Then plug the UV
lamp into the lamp connector. Plug the electrical control
box into a 120volt wall plug outlet.
Upon start up the UV lamp Detector and Timer circuit
board will perform a self diagnostic test. When power is
applied the UV 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, UV System is
operational.
Set the 1 Year Lamp Timer – WITH NEW UV LAMP –
Make sure the control box is plugged into the wall outlet
and the UV lamp is on. Press and hold the reset push
button. A tone that descends in frequency once per

5
Installation Continued
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.
The above procedures are followed for the 1 year UV
lamp replacement interval to reset the control box 1
Year Lamp Timer.
UV lamp Detector and Timer circuit board Lamp
Operation and Alarm features:
• UV System OK – Green LED will flash every 5 -
10 seconds During Normal Operation.
• 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 UV System has a 120Vac Normally Closed
Solenoid Valve or Remote Alarm connected to the
UV Unit plug-in connection, this will activate at
End of Lamp Life or Lamp Out alarm conditions.
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. Service Unit - Replace the
UV Lamp within 30 Days.
2. 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.)
3. Service Unit Immediately - Replace the UV 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.)
5. Service Unit Immediately - Replace the UV Lamp.
Option A
Standard Control Box
& UV Chamber Mounting
Option B
Remote Control Box
& UV Chamber Mounting
Option C
Remote Control Box
& UV Chamber Mounting
Mounting Options:

6
Parts Breakdown:
1. Mounting Bracket
2. Outlet
3. Site Port
4. Quartz Sleeve
5. UV Lamp
6. Inlet
7. Quartz Sleeve Stabilizer
8. Optional Bottom Mounting Bracket
1
2
6
7
4
3
5
8
1” MNPT
Flow Control
3/4” FNPT
Installation Diagram
Pressure Tank
(well systems)
Water Softener
(Water Filter Treatment Equipment)
Pre-Filter Cartridge
PT-UV Chamber
UV Lamp
& Quartz Sleeve

7
Sanitation Procedure
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
continue to run pump if water doesn’t flow.
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 flushed from system.
8. After system has been completely flushed, 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
about 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
flow 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 flow 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 flush 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 office, or your nearest
certified 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 fixtures in the
distribution system should be rinsed and flushed with
chlorinated water. Upon installation of a U.V. disinfection
unit or yearly bulb replacement service, disinfection with
chlorine to initially flush 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 1 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.

8
Sanitation Procedure Continued
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 certified
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 filter and disinfect the water if necessary.
Plumbing Line Sanitation Only:
When installing an ultraviolet disinfection system, a
prefilter 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.
How to Sanitize a Water System Using Well Sanitizer
Pellets
Table 1
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 1 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

9
Installation and Maintenance
container. It is important to handle the quartz sleeve with
care to prevent breakage. Make certain that all finger prints
are wiped clean before reinstalling (see installation of the
quartz sleeve). Replace O-Ring [PT8-544(1)] every time a
quartz sleeve is cleaned or replaced. We recommend
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. Avoid allowing fingerprints and other
debris to deposit on UV lamp. 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 reduce / inactivate 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 certified laboratory.
ELECTRICAL:
The PT 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
fluctuations and avoid accidental shut off and a dedicated
electrical circuit rated with GFI protection is recommended..
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
fingerprints before installing.
After unplugging the unit, remove the brass dust cap and
electrical connection. Then remove brass end nut. Install the
quartz sleeve through the stainless steel threaded nipple until
it is centered in the Quartz spring. Use a small amount of
plumber’s grease and install the O-ring around the quartz
sleeve. Avoid riding the O-Ring on any threaded part of the
nipple. Hand-tighten the brass end-nut to form a compression
seal around the quartz sleeve. Avoid overtightening the nut,
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
nut.
After you have tightened the brass end 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 find a leak at the brass end-nut, tighten
the brass end-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 brass end-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
sufficient film 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 specific 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 specific 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 flow 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 and remove the O-Ring and
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 insufficient 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

10
Parts Breakdown PT-8
2
6
8
1
3
5
12
10
13
7
4
9
14
ITEM NO. PART NUMBER DESCRIPTION QTY.
1 PT-476D Domed Quartz 1
2
PT4-450 UV Lamp 1
3
PT-5172 Sightport Lens 1
4
PT-5173 Orange .7" OD Viewport O Ring 1
5
PT-5171 Sightport Nut 1
6
PT5-409 Brass End Nut 1
7
PT8-544 Orange 1.2" OD ORing 1
8
PT5-410 Lock Nut 1
9
PT8-546 Black 1.5" OD ORing 1
10 STS-8GPM
8 Gallon Per Minute Bottom
Feed Assembled Chamber
1
11 PT-269
(OPTIONAL)Bottom Mounting
Bracket
1
12 PT-8GPM 8 GPM Flow Control 1
13 PT-268 Top Mounting Bracket 1
14 PT-279 279 Control Box 1
PT-8 CUSTOMER BOM
A
7/9/15
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
.25"
TWO PLACE DECIMAL
.010"
THREE PLACE DECIMAL
.002"
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.
PROPRIETARY AND CONFIDENTIAL
A
DRAWN TDB
1
2
3
4
5
MATERIAL
FINISH
CHECKED
ENG APPR.
MFG APPR.
DATE NAME
TITLE
SIZE DWG. NO. REV
WEIGHT: SCALE: SHEET 1 OF 1
DO NOT SCALE DRAWING
2
6
8
1
3
5
12
10
13
7
4
9
14
ITEM NO. PART NUMBER DESCRIPTION QTY.
1 PT-476D Domed Quartz 1
2
PT4-450 UV Lamp 1
3 PT-5172 Sightport Lens 1
4 PT-5173 Orange .7" OD Viewport O Ring 1
5 PT-5171 Sightport Nut 1
6
PT5-409 Brass End Nut 1
7
PT8-544 Orange 1.2" OD ORing 1
8
PT5-410 Lock Nut 1
9
PT8-546 Black 1.5" OD ORing 1
10 STS-8GPM
8 Gallon Per Minute Bottom
Feed Assembled Chamber
1
11 PT-269
(OPTIONAL)Bottom Mounting
Bracket
1
12 PT-8GPM 8 GPM Flow Control 1
13 PT-268 Top Mounting Bracket 1
14 PT-279 279 Control Box 1
PT-8 CUSTOMER BOM
A
7/9/15
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
.25"
TWO PLACE DECIMAL
.010"
THREE PLACE DECIMAL
.002"
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.
PROPRIETARY AND CONFIDENTIAL
A
DRAWN TDB
1
2
3
4
5
MATERIAL
FINISH
CHECKED
ENG APPR.
MFG APPR.
DATE NAME
TITLE
SIZE DWG. NO. REV
WEIGHT: SCALE: SHEET 1 OF 1
DO NOT SCALE DRAWING

11
Parts Breakdown PT-12
6
8
13
3
5
2
11
1
12
14
7
9
4
10
ITEM
NO.
PART NUMBER DESCRIPTION QTY.
1 PT1-759D Domed Quartz 1
2
PT4-739 UV Lamp 1
3
PT-5173
Orange .7" OD
Viewport O Ring
1
4
PT-5172 Sightport Lens 1
5
PT-5171 Sightport Nut 1
6
PT5-410 Lock Nut 1
7
PT8-544 Orange 1.2" OD ORing 1
8
PT5-409 Brass End Nut 1
9
PT8-546 Black 1.5" OD ORing 1
10 PT-279 279 Control Box 1
11 PT-12GPM 12 GPM Flow Control 1
12 PT-12GPM
12 Gallon Per Minute
Feed Assembled
Chamber
1
13
PT-268
Top Mounting Bracket 1
14 PT-269
Bottom Mounting
Bracket
1
PT-12 CUSTOMER BOM
A
7/9/15
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
.25"
TWO PLACE DECIMAL
.010"
THREE PLACE DECIMAL
.002"
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.
PROPRIETARY AND CONFIDENTIAL
A
DRAWN TDB
1
2
3
4
5
MATERIAL
FINISH
CHECKED
ENG APPR.
MFG APPR.
DATE NAME
TITLE
SIZE DWG. NO. REV
WEIGHT: SCALE: SHEET 1 OF 1
DO NOT SCALE DRAWING
6
8
13
3
5
2
11
1
12
14
7
9
4
10
ITEM
NO.
PART NUMBER DESCRIPTION QTY.
1 PT1-759D Domed Quartz 1
2
PT4-739 UV Lamp 1
3
PT-5173
Orange .7" OD
Viewport O Ring
1
4
PT-5172 Sightport Lens 1
5
PT-5171 Sightport Nut 1
6
PT5-410 Lock Nut 1
7
PT8-544 Orange 1.2" OD ORing 1
8
PT5-409 Brass End Nut 1
9
PT8-546 Black 1.5" OD ORing 1
10 PT-279 279 Control Box 1
11 PT-12GPM 12 GPM Flow Control 1
12 PT-12GPM
12 Gallon Per Minute
Feed Assembled
Chamber
1
13
PT-268
Top Mounting Bracket 1
14 PT-269
Bottom Mounting
Bracket
1
PT-12 CUSTOMER BOM
A
7/9/15
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
.25"
TWO PLACE DECIMAL
.010"
THREE PLACE DECIMAL
.002"
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.
PROPRIETARY AND CONFIDENTIAL
A
DRAWN TDB
1
2
3
4
5
MATERIAL
FINISH
CHECKED
ENG APPR.
MFG APPR.
DATE NAME
TITLE
SIZE DWG. NO. REV
WEIGHT: SCALE: SHEET 1 OF 1
DO NOT SCALE DRAWING

12
Parts Breakdown PT-20
6
4
2
3
8
9
1
5
7
12
11
10
13
14
ITEM
NO.
PART
NUMBER
DESCRIPTION QTY.
1 PT-5173
Orange .7" OD Viewport
O Ring
1
2
PT-5172 Sightport Lens 1
3
PT-5171 Sightport Nut 1
4
PT5-410 Lock Nut 1
5
PT8-544 Orange 1.2" OD ORing 1
6
PT5-409 Brass End Nut 1
7
PT8-546 Black 1.5" OD ORing 1
8
PT-832D Domed Quartz 1
9
PT4-810 UV Lamp 1
10 PT-270 Top Mounting Bracket 1
11 PT-20GPM
20 Gallon Per Minute
Bottom Feed Assembled
Chamber
1
12 PT-279 279 Control Box 1
13 PT-271 Bottom Mounting Bracket 1
14 PT-20GPM 20 GPM Flow Control 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
TDB 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:
7/9/15
A
PT-20 CUSTOMER MANUAL
6
4
2
3
8
9
1
5
7
12
11
10
13
14
ITEM
NO.
PART
NUMBER
DESCRIPTION QTY.
1 PT-5173
Orange .7" OD Viewport
O Ring
1
2
PT-5172 Sightport Lens 1
3
PT-5171 Sightport Nut 1
4
PT5-410 Lock Nut 1
5
PT8-544 Orange 1.2" OD ORing 1
6
PT5-409 Brass End Nut 1
7
PT8-546 Black 1.5" OD ORing 1
8
PT-832D Domed Quartz 1
9
PT4-810 UV Lamp 1
10 PT-270 Top Mounting Bracket 1
11 PT-20GPM
20 Gallon Per Minute
Bottom Feed Assembled
Chamber
1
12 PT-279 279 Control Box 1
13 PT-271 Bottom Mounting Bracket 1
14 PT-20GPM 20 GPM Flow Control 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
TDB 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:
7/9/15
A
PT-20 CUSTOMER MANUAL

13
Wiring Diagram
PT-12, PT-20PT-8

14
Troubleshooting
TROUBLESHOOTING GUIDE
PROBLEM CAUSE CORRECTION
U.V. lamp will not light Check input voltage if below Install a voltage regulator
or above 120 volts
Line cord disconnected Check, replace
or outlet defective
Defective U.V. lamp Replace
Defective lamp ballast Check output voltage
Replace ballast
Loose open-circuit wire Trace out and repair
Leak at quartz nipple Defective or cracked O-Ring Replace O-Ring
O-Ring not seated properly Replace O-Ring
Cracked Quartz Sleeve Replace Quartz Sleeve

15
Sterile Water Sample Procedures
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 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 wide open 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
immediately 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
plating 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.
Contact PurTest for any water sampling questions or
requirements.

16
Specications
PT - 8 8 1 0.03 0.25 21” x 3.5” x 3.5” 304 SS 9 lbs.
PT - 12 12 1 0.03 0.25 32” x 3.5” x 3.5” 304 SS 18 lbs.
PT - 20 20 1 0.03 0.25 35” x 5” x 5” 304 SS 21 lbs.
220V Specs are available upon request
3/4” FNPT
1” MNPT
3/4” FNPT
1” MNPT
3/4” FNPT
1” MNPT

17
REV. July, 2015
In accordance with the Manufacturer’s warranty, and subject to the conditions hereinafter set forth, American Water Service will repair or replace to
the original user or consumer, equipment, parts or components found to be defective in manufacturing or workmanship.
WARRANTY PERIODS:
UV Chambers 10 yrs.
Electrical Components (excludes UV lamp) 2 yr.
UV Lamp, Quartz Sleeve 90 days prorated
WARRANTIES NOT APPLICABLE: To defects or malfunctions resulting from failure to properly install, operate or maintain the unit in accordance
with printed instructions; failure to use PurTest authorized replacement parts, to failures resulting from shipment or handling, abuse, accident,
negligence, freezing, fire or heat, direct exposure to weather or sunlight, water temperatures and pressures exceeding specifications, flooding or
other acts of God not considered normal operating condition; to normal maintenance services and the parts used in connection with such service; to
units which are not installed in accordance with applicable local codes, ordinances and good trade practices; if the unit is moved from its original
installation location; or if unit is used for purposes other than for what it was designed and manufactured.
LABOR COSTS, LIABILITY: American Water Service, LLC, shall IN NO EVENT be responsible or liable for the cost of field labor or other charges
incurred by any customer in installing, removing and/or reaffixing any American Water Service product, part or component thereof, or be liable for
any injury, loss or damage, direct or indirect, special or consequential, arising out of the use of, misuse, or the inability to use such product. Before
use, Distributor, Dealer or User shall determine the suitability of the product for his/her intended purposes, and shall assume all risk and liability in
connection therewith.
RETURNS: A RETURN MERCHANDISE AUTHORIZATION NUMBER (RMA #) is required on ALL RETURNS. Contact American Water Service
to obtain this number. The RMA # MUST be clearly written on the outside of the package. Address shipments to the Return Department, American
Water Service, LLC, 104 Associates Lane, Indian Trail, NC 28079, and freight prepaid. All returns should be accompanied with a written description of
mode or reason of failure.
The customer must order PurTest replacement parts if required as a standard purchase until the defective part is received and evaluated by the
factory. PurTest will inspect, test, and determine the cause of defective components or parts. PurTest at its sole discretion will make necessary
repairs to or replace components. PurTest will determine the extent of the warranty coverage and the proper warranty credit to be applied. The
return freight will be credited to the customer for warranty repairs or replacements.
For your warranty protection, the warranty card must be completed and returned to American Water Service within 10 days of installation. In the
absence of other suitable proof of installation date, the effective date of this warranty will be based on the date of manufacture plus 30 days.
This warranty gives you specific legal rights and you may also have other rights, which vary, from state to state.
WARRANTY REGISTRATION CARD
NAME: ______________________________________________________
ADDRESS:___________________________________________________
CITY & STATE: ______________________________ ZIP _____________
PURCHASED FROM: __________________________________________
ADDRESS: __________________________________________________
CITY & STATE: ______________________________ZIP _____________
INSTALLATION DATE: _________________________________________
MODEL NO: _____________________ SERIAL NO: __________________
MANUFACTURER’S
LIMITED WARRANTY