US Water Systems 400-USUV-10 User manual

System Tested and Certified by
NSF International against CSA
B483.1 and NSF/ANSI 55 for
Disinfection Performance, Class B
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US Water Systems Corporate Office
1209 Country Club Road
Indianapolis, IN 46234
[e-mail]
www.uswatersystems.com
1-800-608-8792
Owner's Manual
Visit us online at www.uswatersystems.com
REVISION # 1.0
REVISION DATE September 29, 2015
Models:
400-USUV-10, 400-USUV-
20, 400-USUV-30

Congratulations on the purchase of the US Water Systems ultraviolet (UV) water disinfection
system! This system uses the most advanced UV technology on the market and is designed to pro-
vide years of trouble free operation with minimal maintenance required to protect drinking water from
microbiological contaminants.
To ensure ongoing disinfection of the water, UV lamps need to be replaced annually with US Water
Systems factory-supplied replacements. US Water Systems lamps are the result of extensive devel-
opment resulting in a highly efficient disinfection platform with extremely stable UV output over the
entire 9000 hour lifetime. Its success has led to a proliferation of non-genuine copies in the market.
The UV lamp is the heart of the disinfection system, and there should be no compromise when it's
time for a replacement.
Why should US Water Systems replacement lamps be used?
• Use of widely available, non-genuine, replacement lamps has been shown to damage the control
module of US Water Systems UV disinfection equipment.
• An increasing number of calls to US Water Systems Technical Support are connected with non-
genuine lamps being used (unknowingly) as replacements.
• Damage arising from the use of non-genuine lamps poses a safety risk and is not covered by
equipment warranty.
• Unless the UV equipment is equipped with a UV sensor (monitor), it is not possible to verify the UV
(invisible) output of replacement lamps.
• Similar appearance to the original lamp and the presence of (visible) blue light does not mean
equivalent disinfection performance.
• US Water Systems replacement lamps undergo rigorous performance testing and strict quality con-
trol processes to ensure that the safety and performance certifications of the original equipment
are not compromised.
So, it is apparent that it's simply not worth the risk! Insist on genuine US Water Systems replace-
ment lamps.
2

Section 1 Safety Information
Please read this entire manual before operating this equipment. Pay attention to all danger, warning, and caution statements in
this manual. Failure to do so could result in serious personal injury or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired. DO NOT use or install this equipment in any
manner other than that specified in the installation manual.
1.1 Potential Hazards:
Read all labels and tags attached to the system. Personal injury or damage to the system could occur if not observed.
This symbol indicates safety glasses with side protection is
required for protection against UV exposure.
This symbol indicates safety glasses with side protection is
required for protection against UV exposure.
This symbol indicates gloves must be worn.
Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive h arm.
1.2 Safety Precautions:
3
This symbol indicates safety boots must be worn.
This symbol indicates the operator must read all available docu-
mentation to perform required procedures.
This symbol indicates the plumber must use copper piping.
This symbol indicates that the system should only be connected
to a properly grounded, grounding-type controller receptacle that
is protected by a Ground Fault Circuit Interrupter (GFCI).
Waste electrical and electronic equipment (WEEE). This symbol indicates that
you should not discard wasted electrical or electronic equipment (WEEE) in the
trash. For proper disposal, contact your material close to the system. local recy-
cling/reuse or hazardous waste center.
This symbol indicates not to store any combustible or flamma-
ble material close to the system.
This is the safety alert symbol. Obey all safety messages that follow
this symbol to avoid potential injury. When on the equipment, refer to
the Operational and Maintenance manual for additional safety
This symbol indicates a risk of electrical shock and/or electrocution
exists.
This symbol indicates the marked equipment may contain a compo-
nent that can eject forcibly. Obey all procedures to safely depressur-
ize.
This symbol indicates the system is under pressure.
This symbol indicates there is a potential UV hazard. Proper protec-
tion must be worn.
This symbol indicates the marked item could be hot and should not
be touched without care.
This symbol indicates there is a potential for VERY hot water when
flow is started.
This symbol indicates there is Mercury present.
Hg
Failure to follow these instructions will result in serious injury or death.
 Electric Shock: To avoid possible electric shock, special care should be taken since water is present near the 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.
 GROUNDING: This product must be grounded. If it should malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electrical shock. This system is
equipped with a cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local codes
and ordinances. Improper connection of the equipment-grounding conductor can result in a risk of electrocution. Check with a qualified electrician or service personnel if you are in doubt as to whether the outlet is
properly grounded. DO NOT modify the plug provided with this system - if it does not fit in the outlet, have a proper outlet installed by a qualified electrician. DO NOT use any type of adapter with this system.
 GROUND FAULT CIRCUIT INTERRUPTER PROTECTION: To comply with the National Electrical Code (NFPA 70) and to provide additional protection from the risk of electric shock, this
system should only be connected to a properly grounded, grounding-type controller receptacle that is protected by a Ground Fault Circuit Interrupter (GFCI). Inspect operation of GFCI as per manufacturer's suggest-
ed maintenance schedule.
 DO NOT operate the disinfection system if it has a damaged cord or plug, if it is malfunctioning or if it has been dropped or damaged in any manner.
 DO NOT use this disinfection system for other than intended use (potable water applications). The use of attachments not recommended or sold by the manufacturer / distributor may cause an unsafe condition.
 DO NOT install this disinfection system where it will be exposed to the weather or to temperatures below freezing.
 DO NOT store 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 water has been drained from it and the water supply has been disconnected.

Water Quality and Minerals Level
Iron < 0.3 ppm (0.3mg/L)
Hardness* <7 gpg (120 mg/L)
Turbidity < 1 NTU
Manganese < 0.05 ppm (0.05 mg/L)
Tannins < 0.1 ppm (0.1 mg/L)
UV Transmittance > 75% (call factory for recommendations on applica-
tions where UVT < 75%)
4
CAUTION
Failure to follow these instructions could result in minor or moderate injury.
•Carefully examine the disinfection system after installation. It should not be plugged in if there is water on parts not intended to be wet such as, the controller or lamp connector.
•Due to thermal expansion concerns and potential material degradation due to UV exposure, it is recommended to use metal fittings and at least 10" of copper pipe on the outlet of
your UV chamber.
NOTICE
•The UV lamp inside the disinfection system is rated at an effective life of approximately 9000 hours. To ensure continuous protection, replace the UV lamp annually.
•The UV system is not to be used or played with by children. Persons with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, are also not to
handle the UV system unless they have been given supervision or instruction.
•EXTENSION CORDS: If an extension cord is necessary, use only 3-wire extension cords that have 3-prong grounding-type plugs and 3-pole cord connectors that accept the
plug from this system. Use only extension cords that are intended for outdoor use. Use only extension cords having an electrical rating not less than the rating of the system. A
cord rated for less amperes or watts than this system rating may overheat. Exercise caution when arranging the cord so that it will not be tripped over or pulled. DO NOT use
damaged extension cords. Examine extension cord before using and replace if damaged. DO NOT abuse extension cord. Keep extension cord away from heat and sharp edges.
Always disconnect the extension cord from the receptacle before disconnecting this system from the extension cord. Never yank cord to pull plug from outlet. Always grasp the
plug and pull to disconnect.
•SYSTEM PROTECTION: To protect your Controller, a UL1449 certified (or equivalent) transient voltage surge suppressor is strongly recommended.
•The UV lamp in this system conforms to the applicable provisions of the Code of Federal Regulations (CFR) requirements including, Title 21, Chapter 1, Subchapter J, Radiologi-
cal Health.
•Read and understand the Owner's Manual before operating and performing any maintenance on this equipment.
1.3 Water Chemistry
Water quality is extremely important for the optimum performance of your UV system. The following levels are recommended for installation:
* Where total hardness is less than 7 gpg, the UV unit should operate efficiently provided the quartz sleeve is cleaned periodically. If total
hardness exceeds 7 gpg, the water should be softened. If your water chemistry contains levels in excess of those mentioned above, prop-
er pre-treatment is recommended to correct these water problems prior to the installation of your UV disinfection system. These water
quality parameters can be tested by your local dealer, or by most private analytical laboratories. Proper pre-treatment is essential for the
UV disinfection system to operate as intended.
WA R N I N G
During extended periods of no water flow, the water in your chamber can become very hot (Approx. 60 °C) and potentially lead to scalding. It is recom-
mended to run your water until this hot water has been purged from your chamber. Do not allow water to contact your skin during this time. To eliminate
this condition, a temperature management valve can be installed at the outlet of your UV system.
Changes or modifications made to this system without the consent of the manufacturer could render the system unsafe for operation and may void the
manufacturer's warranty.

Item Description Part Number UV Systems
1O-ring 410867 Used on all systems
2Open-ended, GE 214 fused quartz sleeve with
fire polished ends
QS-001 400-USUV-10
QSO-410 400-USUV-20
QSO-600 400-USUV-30
3Hard glass, coated Sterilume® - HO UV lamps
for long, consistent life (9000 hours)
S200RL-HO 400-USUV-10
S410RL- HO 400-USUV-20
S600RL - HO 400-USUV-30
4Retaining Nut RN-001 Used on all systems
5 Controller (for 100-240V/50-60HZ models only)
BA-ICE-CL 400-USUV-10, 400-USUV-20
BA-ICE-C400-USUV-30
6IEC replacement power cords for controller
(sold separately) 260010 400- USUV-10, 400-USUV-20, 400-USUV-30
7Mounting Brackets/Clamp Assembly 410067 Used on all systems
5
General Information
Section 2 General Information
1
2
3
4
5
6
7

Installation
Section 2 General Information
3.1 UV Disinfection System
CAUTION
Electronic controller must be connected to a Ground Fault Protected Circuit (GFCI) receptacle. Ensure green ground wire
ring terminal is securely fastened to ground stud on UV chamber.
The disinfection system is designed to be mounted either horizontally or vertically at the point-of-use or point-
of-entry depending on the specific flow rate of the unit.
Note: The ideal installation is vertical with the lamp connector on top. This is to prevent water dam-
age from occurring on the lamp pins and lamp connector.
• The controller should be mounted either above or beside the UV chamber. Always mount controller hori-
zontally to prevent moisture from running down cordage and causing a potential fire hazard. Drip loops in
all cordage connected to controller is highly recommended. Refer to Figure 5.
• The complete water system, including any pressure or hot water tanks, must be sterilized before start up
by flushing with chlorine (household bleach) to destroy any residual contamination. Refer to Section 3.2.
• The disinfection system is intended for indoor use only. DO NOT install disinfection system where it may
be exposed to the weather.
• Install the disinfection system on cold water line only, before any branched lines.
• A 5 micron sediment filter must precede the disinfection system. Ideally, the disinfection system should
be the last treatment the water receives before it reaches the faucet.
Procedure:
1. Figure 2 shows the installation of a typical disinfection system and the related components that
may be used for the installation. The use of a by-pass assembly is recommended in case the system re-
quires "off-line" maintenance. In this case, note the system requires supplementary disinfection for the dis-
tribution system if any water is used during by-pass condition. In addition, during by-pass, the water will
NOT be disinfected and a "DO NOT CONSUME THE WATER" tag should be physically installed on the by
-pass assembly until such time as the system is sanitized and returned to service. For more information,
refer to Section 3.2. If the water is to be consumed while the system is off-line, the water must be boiled
for two minutes prior to consumption.
6
Water
meter
Main
water
shut-off
Oponal
water
soener
5 Micron
sediment
filter
Hot water pipes
Cold water pipes
Customer supplied GFCI
circuit to match voltage
Optional
carbon
filter
To
drain
Optional by-pass
assembly
Optional by-pass
assembly
Optional
by-pass
assembly
Note: UV system
should be the final piece
of treatment equipment

2. Select a suitable location for the disinfection system and its related components. As it is recommended to install a
GFCI, make sure that this is taken into consideration prior to any installation. The system can either be installed verti-
cally (inlet port at the bottom) as shown in Figure 3 A, or horizontally as shown in Figure 3 B. However, the vertical
installation is the most preferred method. When selecting a mounting location, leave enough space to allow the re-
moval of the UV lamp and/or quartz sleeve (typically leave a space equal to the size of the UV chamber itself).
3. Mount the system to the wall using the supplied clamps. Various connection methods can be used to connect the wa-
ter source to the system, however union type connectors are recommended. The use of a flow restrictor device will
help to maintain the manufacturers rated flow. The flow restrictor should be installed on the outlet port and is de-
signed to be installed in one direction only. Ensure that the flow of the water matches the flow direction as indicated
on the flow restrictor. Refer to Figure 4.
Note: DO NOT solder connections while attached to the system as this could damage the O-ring seals.
4. Mount the US WATER SYSTEMS ICE controller horizontally to the wall, near the UV chamber. Ideally place the con-
troller above the chamber and away from any water connection point, to prevent any water from potentially leaking
onto the controller by means of a leak at a connection point or a “sweating” system. Make sure you allow for a “drip-
loop” as shown in Figure 5 on the UV lamp, UV sensor, and power cord, again, to prevent any water from potentially
entering the controller.
Installation
7
Figure 4 Flow Restrictor
Min. clearance equal to unit overall length
Unit overall length
A
Unit overall length Min. clearance equal
to unit overall length
B
Figure 3 Disinfection Installation - Vertical and Horizontal
Outlet port
on cell
Flow
Flow
Restrictor
(NSF Products only)
Flow direction must
be the same as arrow
on flow restrictor
Optional
by-pass
assembly
Optional
drain
cock

Figure 5 Drip Loop
5. Install the UV lamp. Refer to Section 4.1.
6. When all plumbing connections are complete, slowly turn on the water supply and check for leaks. The most likely
cause of leaks is from the O-ring seal. In case of a leak, shut water off, drain cell, remove the retaining nut, wipe
the O-ring and threads. Clean and re-install.
7. Once it is determined that there are no leaks, plug the system into the ground fault interrupter and check controller
to ensure the system is operating properly. The controller should illuminate without any alarms.
Note: DO NOT look directly at the glowing UV lamp.
8. Allow the water to run for a few minutes to clear any air or dust that may be in the UV chamber.
Note: When there is no flow, the water in the cell will become warm, as the UV lamp is always on. To reme-
dy this, run a cold water tap anywhere in the house for a minute to flush out the warm water.
3.2 Disinfection Procedure
UV disinfection is a physical disinfection process and does not add any potentially harmful chemicals to the water. As UV
does not provide a disinfection residual, it is imperative that the entire distribution system located after the UV be chemi-
cally disinfected to ensure that the plumbing system is free from any bacteriological contaminants. The disinfection pro-
cess must be performed immediately after the UV unit is installed and repeated thereafter whenever the UV is shut down
for service, without power, or inoperative for any reason. The procedure for sanitizing the plumbing system is readily ac-
complished as follows:
Drip Loop
1234Household 5.25%
Bleach Solution
1
2x2
2
 Ensure the controller is
plugged in for entire
disinfection process
 Shut off the water supply.
 Close each faucet.
 Remove filter cartridge(s).  Pour 2 cups of house-
hold bleach solution into
the filter housing(s).
 Note: DO NOT use
Hydrogen Peroxide.
8
Installation

Installation
5678
22
2
30 mins
11
Re-install the housings.
Turn on the cold water
supply.
Open each faucet and all
water openings until you
smell the bleach and then
close the faucets.
Turn on the hot water
supply.
Open each faucet and all
water openings until you
smell the bleach and then
close the faucets.
DO NOT use water for 30
minutes.
Flush the system until no
chlorine smell is detectable
and reinstall the filters.
Reinstall filter housing(s)
Notes: 1) The addition of chlorine (bleach) to a hot water tank that has in the past been fed with untreated raw wa-
ter with high levels of other contaminants (iron, manganese, hydrogen supplied, organics, etc.) will result in oxi-
dation of these contaminants and may require repeated flushing of the hot water tank. This contingency must
be dealt with independently under the start-up procedure for any other conditioners that may form a part of the
pretreatment for the UV unit.
2) The above disinfection procedure will result in a massive chlorine residual far in excess of the 0.5 to 1.0 mg/L
typically present in municipally chlorinated water and of a magnitude consistent with the minimum 50 mg/L
chlorine solution recommended for the disinfection of distribution systems known to be contaminated. DO NOT
consume water until complete system has been flushed.
3) As the monitored systems include a 254nm UV intensity monitor, note that the introduction of the bleach solution
required for disinfection will trigger a temporary low UV condition. This is due to the fact that the bleach physi-
cally “clouds” the raw water. Once the bleach runs through the system, the alarm condition will return to normal.
During this sanitization process, the audible alarm condition on the controller can be temporarily deferred by
pressing the “RESET” switch for 5 seconds. By doing this, the audible alarm will be silenced. The system will
display on the controller LED. This condition will remain for 12 hours unless the system is manually reset
as outlined on page 10 of this manual.
9

• Always disconnect power before performing any work on the disinfection system.
• Always shut-off water flow and release water pressure before servicing.
• Regularly inspect your disinfection system to ensure that the power indicators are on and no alarms are present.
• Replace the UV lamp annually (or biennially if seasonal home use) to ensure maximum disinfection.
• Always drain the chamber when closing a seasonal home or leaving the unit in an area subject to freezing temperatures.
Maintenance
Section 4 Maintenance
4.1 Replacing UV Lamp
WARNING
NOTICE
1
•Reset UV lamp life timer after UV lamp replacement. Refer to Section 5.1.3. Refer to www.lamprecycle.org for UV lamp disposal.
•DO NOT use water during replacement of UV lamp.
UV lamp replacement is a quick and simple procedure requiring no special tools. The UV lamp must be replaced after 9000 hours
of continuous operation (approximately one year) in order to ensure adequate disinfection.
Procedure:
234
10 MINS
1
2
•Shut off the water line to
chamber and release
system pressure before
servicing.
•Disconnect main power
source and allow the unit
to cool for 10 minutes.
•Remove the lamp connector
by squeezing the plastic
locking tabs on the side of
the connector.
Remove the lamp in
upward direction from
the chamber and lamp
connector base.
Always hold the lamp
at the ceramic ends.
5678
1
1
2
•Insert the new lamp fully into
the chamber leaving about
two inches of the lamp
protruding from the chamber.
•Attach the connector to
the lamp and note that
the connector will only
allow correct installation
in one position.
•Push the lamp connector
against lamp connector
base together until an audi-
ble click is heard.
•Re-pressurize the system to
check for leaks.
Hold down the timer reset
button and reapply power
to the controller until you
see , then release
timer reset button.
A 5 second delay will occur
until you hear an audible
tone and the LED display
will read one again .
10

Maintenance
4.2 Cleaning and Replacing Quartz Sleeve
Note: Minerals in the water slowly form a coating on the quartz sleeve. This coating must be removed because it
reduces the amount of UV light reaching the water, thereby reducing disinfection performance. If the sleeve can not be
cleaned, it must be replaced.
Prerequisites:
•Shut off water supply and drain all lines.
•Remove the UV lamp. Refer to Section 4.1.
Procedure:
1234
5678
1
2
31
2
1
2
1
3
2
1
2
• Drain the chamber by using • Remove the bottom retaining • Remove the top retaining nut • Carefully, remove O-ring
the drain port. nut, floating spring, and and O-ring. adhering to the quartz sleeve.
O-ring. • Remove the quartz sleeve.
• Clean the quartz sleeve with a
cloth soaked in CLR, vinegar or
some other mild acid and then
rinse with water.
Note: If sleeve cannot be
cleaned completely or it is
scratched or cracked, then re-
place the sleeve
• Reinstall the quartz sleeve in
the chamber allowing the
sleeve to protrude an equal
distance at both ends of the
chamber.
• Slide supplied O-rings onto
each end of the quartz
sleeve.
• Reinstall the top and bottom
retaining nuts, floating spring,
and O-rings respectively.
• When service is complete,
assemble the prerequisites in
the reverse order of
disassembly.
 Plug in controller and verify the
POWER-ON LED display is
illuminated and controller
power-up sequence operates.
• Push the lamp connector
against lamp connector base
together until an audible click is
heard.
• Plug in controller and verify the
POWER-ON LED display.
• Re-pressurize the system to
check for leaks.
Note: After replacing the UV lamp or quartz sleeve perform the disinfection procedure, refer to Section 3.2.
11

Operation
Section 5 Operation
WARNING
The advanced warning system has been installed to provide the optimum protection against microbiological contamination in water. DO NOT disregard
the warning signals. The best way to ensure optimum UV performance is to have the water microbiologically tested by a recognized testing agency on a
regular basis.
5.1 Basic Systems Incorporating BA-ICE-S Controller
5.1.1 UV lamp Life Remaining (days)
The controller tracks the number of days of operation of the UV lamp and the controller. The default screen will
display the total UV lamp life remaining (in days). The controller will count down the number of days remaining until the UV
lamp requires changing (365 days to 1 day). At "0" days, the controller will display and sound an intermittent audible
chirp (1 second on, 5 seconds off), indicating the need to change the UV lamp.
5.1.2 Understanding your "A3" Code
DEFERRAL - Once the "A3" or end of UV lamp life message is shown on the LED display, the audible alarm can be
deferred up to 4 separate times. The delay is designed to allow you time to address the alarm while you obtain a new UV
lamp. This can be done by simply depressing the timer reset button for 5 seconds, which is located on the left side of the
controller. Each time the timer reset button is pressed the controller alarm is deferred seven days. Once the final 7 day de-
ferral has been reached the alarm can only be silenced by changing the UV lamp and manually resetting the controller tim-
er, refer to Section 4.1.
5.1.3 Resetting UV lamp Life
Refer to Section 4.1.
Note: Even though the alarm on the system can be deferred for a period of time, it is important to address each and
every alarm condition as they are indicating that there is a potential problem with the system and should be remedied.
5.1.4 Total Days of Operation
The controller also displays the total running time of the controller. To obtain this reading, press the push-button once.
The total running time of the controller will be numerically displayed in days. This information will remain displayed for ten
seconds and will then revert back to the UV lamp life remaining default screen. It should be noted that this value cannot be
reset.
5.1.5 UV lamp Failure (Blank Screen)
When the system recognizes UV LAMP FAILURE (no current running through the UV lamp), the display will be
blank (no default UV LAMP LIFE REMAINING screen) and the system will sound an intermittent
audible tones (1 second on,1 second off). The system will remain in this state, until this condition is rem-
edied.
13

Troubleshooting
Section 6 Troubleshooting
Symptom Possible Causes Solutions
Pressure Drop
Sediment pre-filter clogged Replace filter cartridge with appropriate 5 micron cartridge.
Note: Check source water supply as fluctuations may occur in source pressure.
Flow regulator Flow regulator will result in pressure drop when approaching full flow.
High Bacteria Counts
Quartz sleeve is stained or dirty Clean sleeve with scale cleaner and eliminate source of staining problem (ie. soften hard
water, refer to Section 4.2.
Change in feed water quality Have source water tested to ensure that water quality is still within allowable limits for
this system.
Contamination in water lines after UV
system (eg, power failures, plumbing Disinfection system must have a bacterial free distribution system to work effectively.
Refer to Section 3.2
Possible break-through of sediment
through pre-filter Have source water tested for turbidity - may need stepped filtration in order to catch all
sediment entering water system (20 micron filter followed by a 5 micron filter followed by UV
Heated Product Water Common problem caused by infre-
quent use of water
Run water until it returns to ambient temperature.
Water Appears Milky Caused by air in the water lines Run water until air is purged.
Unit Leaking Water
Problem with O-ring seal (on retaining
nut and/or UV sensor)
Ensure O-ring is in place, check for cuts or abrasions, clean O-ring, moisten with water/
lubricant and re-install, replace if necessary (410867).
Condensation on UV chamber caused
by excessive humidity & cold water
Check location of disinfection system and control humidity.
Inadequate inlet/outlet port connec-
tions
Check thread connections, reseal with Teflon® tape and re-tighten
System Shutting
Down Intermittently Interrupted controller
Ensure system has been installed on its own circuit, as other equipment may be drawing
power away from UV (ie. pump or fridge).
UV system should not be installed on a circuit which is incorporated into a light switch.
Loose connection between UV lamp
and connector
Disconnect UV lamp from connector and reconnect, ensuring that a tight fit is accom-
plished
UV lamp Failure Alarm
on - New lamp Moisture build up in connector may
keep UV lamp and connector from
making a solid connection
Eliminate chance of any moisture getting to the connector and/or lamp pins
DISPLAY FAULT MODES
LED display reads "A3" UV lamp life expired - countdown is at "0" days.
Press reset button for a deferred alarm, replace UV lamp
LED display is blank Controller is in UV lamp failure mode.
Power system down, allowing it to reset itself; apply power in order to confirm that the controller is able to power UV lamp
Check to see if there is sufficient power to the UV system UV lamp
17

Specifications: Standard and Validated
Section 7 Manufacturer’s Dose Flow Chart
18
400-USUV-10
400-USUV-20 400-USUV-30

Specifications: Standard and Validated
Section 8 Specifications
Model 400-USUV-10 400-USUV-20 400-USUV-30
Flow Rate
US Public Health 16mJ/cm² @ 95% UVT
16 gpm (60 lpm) (3.6 m3/hr) 34 gpm (130 lpm) (7.8 m3/hr) 40 gpm (151 lpm) (9.1 m3/hr)
US WATER SYSTEMS Standard 30mJ/
cm² @ 95% UVT 9 gpm (34 lpm) (2.0 m3/hr) 18 gpm (70 lpm) (4.2 m3/hr) 30 gpm (113 lpm) (6.7 m3/hr)
NSF/EPA 40mJ/cm² @ 95% UVT 7 gpm (26 lpm) (1.6 m3/hr) 14 gpm (54 lpm) (3.3 m3/hr) 22 gpm (83 lpm) (5.0 m3/hr)
Dimensions
Chamber 45 cm x 8.9 cm (17.8" x 3.5") 59.6 cm x 8.9 cm(23.5" x 3.5") 78 cm x 8.9 cm (30.7" x 3.5")
Controller 100-250 VAC 17.2 cm x 8.1 cm x 6.4 cm
(6.8" x 3.2" x 2.5")
17.2 cm x 8.1 cm x 6.4 cm
(6.8" x 3.2" x 2.5")
22.3 cm x 8.1 cm x 6.4 cm
(8.8" x 3.2" x 2.5")
Inlet/Outlet Port Size¹ Combo 3/4” FNPT/1” MNPT Combo 3/4” FNPT/1” MNPT 1" MNPT
Shipping Weight 5.4 kg (12 lbs) 7.7 kg (17 lbs) 8.6 kg (19 lbs)
Electrical
Voltage² 100-240V/50-60Hz 100-240V/50-60Hz 100-240V/50-60Hz
Power Consumption 35 W 60 W 78 W
UV Lamp Watts 25 W 46 W 58 W
Total Running Time Yes Yes Yes
Maximum Operating Pressure 8.62 bar (125 psi) 8.62 bar (125 psi) 8.62 bar (125 psi)
Ambient Water Temperature 2-40 ºC (36-104 ºF) 2-40 ºC (36-104 ºF) 2-40 ºC (36-104 ºF)
Lamp Type Sterilume™-HO (high-output) Sterilume™-HO (high-output) Sterilume™-HO (high-output)
Visual “Power-ON” Yes Yes Yes
Audible Lamp Failure Yes Yes Yes
Lamp Replacement Reminder Yes Yes Yes
Visual lamp Life Remaining Yes Yes Yes
Total Running Time Yes Yes Yes
Chamber Material Yes Yes Yes
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8.1 Home and Professional - Standard

Manufacturer’s Warranty
Section 9 Manufacturer’s Warranty
Our Commitment
US WATER SYSTEMS is committed to ensuring your experience with our products and organization exceeds your expectations.
We have manufactured your UV disinfection system to the highest quality standards and value you as our customer. Should you
need any support, or have questions about your system, please contact our Technical Support team at 1.800.608.8792 or and we
will be happy to assist you. We sincerely hope you enjoy the benefits of clean, safe drinking water after the installation of your US
WATER SYSTEMS disinfection system.
How to Make a Warranty Claim Note
To maximize the disinfection performance and reliability of your US WATER SYSTEMS product, the system must be properly
sized, installed and maintained. Guidance on the necessary water quality parameters and maintenance requirements can be found
in your Owner's Manual. In the event that repair or replacement of parts covered by this warranty are required, contact our
Technical Support team at 1.800.608.8792 or e-mail [email protected]. Our fully trained technicians will help you
troubleshoot the problem and identify a solution. Please have available the model number (system type), the date of purchase, as
well as a description of the problem you are experiencing. To establish proof of purchase when making a warranty claim, you will
either need your original invoice or the billing name of the purchaser.
Specific Warranty Coverage
Coverage Warranty coverage is specific to the US WATER SYSTEMS range of products. Warranty coverage is subject to the
conditions and limitations outlined under "General Conditions and Limitations".
Lifetime Limited Warranty for US WATER SYSTEMS UV Chamber
US WATER SYSTEMS warrants the UV chamber on the US WATER SYSTEMS product to be free from defects in material and
workmanship for the lifetime of the original purchaser at their original address. During this time, US WATER SYSTEMS will repair
or replace, at its option, any defective US WATER SYSTEMS UV chamber. You must first return the defective part. If this product
is used in a commercial application, the warranty on the chamber is 10 years.
Ten-Year Limited Warranty for Ballast, Electrical and Hardware Components
US WATER SYSTEMS warrants the electrical (controller or ballast) and hardware components to be free from defects in material
and workmanship for a period of ten (10) years from the date of purchase, providing that purchaser uses bulbs and sleeves
purchased from US Water. During this time, US WATER SYSTEMS will repair or replace, at its option, any defective parts covered
by the warranty. Please return the defective part to process your claim. If this product is used in a commercial application, the
warranty on the chamber is 10 years.
One-Year Limited Warranty for UV lamps, Sleeves, and UV Sensors
US WATER SYSTEMS warrants UV lamps, sleeves, and UV sensors to be free from defects in material and workmanship for a
period of one (1) year from the date of purchase. During this time, US WATER SYSTEMS will repair or replace, at its option, any
defective parts covered by the warranty. You must return the defective parts so that we can advise whether the item is indeed
defective. If this product is used in a commercial application, the warranty on the ballast and electronics is 3 years.
Note: Use only genuine US WATER SYSTEMS replacement lamps and sleeves in your system. Failure to do so will seriously
compromise disinfection performance and deny warranty coverage.
General Conditions and Limitations
None of the above warranties cover damage caused by improper use or maintenance, accidents, acts of God or minor scratches or
imperfections that do not materially impair the operation of the product. The warranties also do not cover products that are not
installed as outlined in the applicable Owner's Manual. Parts repaired or replaced under these warranties will be covered under
warranty up to the end of the warranty period applicable to the original part.
The above warranties do not include the cost of shipping and handling of returned items. The limited warranties described above
are the only warranties applicable to the US WATER SYSTEMS range of products. These limited warranties outline the exclusive
remedy for all claims based on a failure of or defect in any of these products, whether the claim is based on contract, tort (including
negligence), strict liability or otherwise. These warranties are in lieu of all other warranties whether written, oral, implied or statutory.
Without limitation, no warranty of merchantability or of fitness for a particular purpose shall apply to any of these products. US
WATER SYSTEMS does not assume any liability for personal injury or property damage caused by the use or misuse of any of the
above products.
US WATER SYSTEMS shall not in any event be liable for special, incidental, indirect or consequential damages.US WATER
SYSTEMS's liability shall, in all instances, be limited to repair or replacement of the defective product or part and this liability will
terminate upon expiration of the applicable warranty period.
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