Sanitron S17A User manual

1
Owner’s Manual
Owner’s Manual
S IN CE 1963
Manufacturers / Engineers / Sales / Service
Germicidal Ultraviolet - Equipment & Lamps
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Extensive Product Information Available at:
ultraviolet.com
Document No. 98-1377B9 • August 2014 • ©2014 Atlantic Ultraviolet Corporation®
Installation,
Operation
& Maintenance
Read and Follow All Safety Instructions. Save These Instructions
Models S17A, S23A, S37C & S50C
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LTRAVIOLET WATER PURIFIERS
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TABLE OF CONTENTS
SAFETY WARNINGS...........................................................................................................................................................3
SAFETY INSTRUCTIONS ..................................................................................................................................................3
SAFETY LABELING............................................................................................................................................................3
CAUTION...............................................................................................................................................................................3
PRODUCTAPPLICATION .................................................................................................................................................4
CONSTRUCTION ........................................................................................................................................................................................4
PRINCIPLE OF OPERATION ........................................................................................................................................................................4
LIMITATION OF USE..................................................................................................................................................................................4
WATER QUALITY .....................................................................................................................................................................................4
INSTALLATION ...................................................................................................................................................................5
LOCATION .............................................................................................................................................................................5
DIMENSIONAL DATA...............................................................................................................................................................5
INSTALLATION........................................................................................................................................................................6
RECOMMENDED OPTIONS........................................................................................................................................................7
OPTIONALACCESSORIES ...............................................................................................................................................8
MAINTENANCE...................................................................................................................................................................8
INSPECTION ...........................................................................................................................................................................8
DISPOSAL OF MERCURY ADDED LAMP ....................................................................................................................................9
LAMP INSTALLATION OR REPLACEMENT ...................................................................................................................................9
QUARTZ SLEEVE CLEAING USING WIPER MECHANISM ............................................................................................................10
QUARTZ SLEEVE CLEAING OR REPLACEMENT.........................................................................................................................11
REPLACEMENT OF BROOKEN QUARTZ SLEEVE........................................................................................................................12
CLEANING OF OPTIONAL GUARDIANTM ULTRAVIOLET MONITOR SENSOR PROBE........................................................................13
TROUBLESHOOTING......................................................................................................................................................14
TECHNICAL SPECIFICATIONS.....................................................................................................................................15
REPLACEMENT PARTS..............................................................................................................................................16-19
SANITRON® MODELS S17A & S23A.........................................................................................................................16-17
SANITRON® MODELS S37C & S50C.........................................................................................................................18-19
USER ASSISTANCE ...........................................................................................................................................................20
WARRANTY........................................................................................................................................................................20
PATENT NOTICE...................................................................................................................................................................20
These instructions generally describe the installation, operation and maintenance of the SANITRON®line of water purifiers,
Models S17A, S23A, S37C and S50C. Questions that are not specifically answerable by these instructions should be directed to
the Factory.
Atlantic Ultraviolet Corporation takes all possible precautions when packaging equipment to prevent damage. Carefully inspect
and report all damages. Do not install damaged equipment.
Follow all instructions on any labels or tags. Carefully inspect all packing materials before
discarding to prevent the loss of accessories, mounting
hardware, spare parts or instructions.
S IN CE 1963
The information and recommendations contained in this publication are based upon data
collected by the Atlantic Ultraviolet Corporation® and are believed to be correct. However, no
guarantee or warranty of any kind, expressed or implied, is made with respect to the information
contained herein. Specifications and information are subject to change without notice.

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SAFETY WARNINGS
SAFETY INSTRUCTIONS
• All personnel should be alerted to the potential hazards indicated by the product safety labeling on this unit.
• The following conventions are used to indicate and classify precautions in this manual and on product safety labeling. Failure to
observe precautions could result in injury to people or damage to property.
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
WARNING: To guard against injury, basic safety precautions should be observed, including the following:
1. Read and follow ALL safety instructions.
2. Do not use this water purifier for other than its intended purpose as described in this manual.
3. Do not alter design or construction.
4. Do not remove any labels or devices.
5. DANGER: To prevent the risk of severe or fatal electrical shock, special precautions must be taken since water
is present near electrical equipment. Always disconnect power before performing any service or maintenance.
6. WARNING: Avoid exposure to direct or reflected germicidal ultraviolet rays. Germicidal ultraviolet rays are
harmful to the eyes and skin.
7. Intended for indoor use only. The water purifier should be protected from the elements and from temperatures below freezing.
8. Do not operate water purifier if lamp cable, lamp connection, power cord and/or plug are damaged, or if any other damage to
the water purifier is visible or suspected
9. Electrical power supplied, to the water purifier, MUST match power requirements listed on the water purifier.
10. Plug the water purifier only into an approved ground fault circuit interrupt (GFCI) receptacle.
11. WARNING: Do not operate without proper electrical ground.
12. Do not exceed water purifier’s maximum rated flow capacity.
13. Do not exceed maximum operating pressure of 100 PSI.
14. Read and follow all notices and warnings on the water purifier.
15. SAVE THESE INSTRUCTIONS.
This symbol/pictorial is used to identify the need to
wear protective gloves.
!
Caution indicates a POTENTIALLY
hazardous situation, which, if not avoided,
MAY result in minor or moderate injury.
Caution used without the safety alert symbol in-
dicates a potentially hazardous situation, which,
if not avoided, may result in property damage.
This symbol/pictorial is used to identify an
ULTRAVIOLET LIGHT hazard.
This symbol/pictorial is used to identify an ELECTRI-
CAL SHOCK or ELECTROCUTION hazard.
Warning indicates a POTENTIALLY
hazardous situation, which, if not avoided,
COULD result in death or serious injury.
This symbol/pictorial is used to identify the need to
wear approved ultraviolet blocking eyewear. This symbol/pictorial is used to identify the need to
wear approved ultraviolet blocking face shield.
This symbol/pictorial is used to identify components
which must not be disposed of in trash
SAFETY LABELS CAUTION
Danger Label: Hazardous Voltage
and Ultraviolet Radiation (00-0196A1)
It is the user’s responsibility to determine and validate the
suitability of this equipment for use in the user’s system or
process.
No warranty or representation is made by the manufacturer
with respect to suitability or performance of this equipment
or to the results that may be expected from its use.
The user should periodically inspect, clean as necessary
and confirm the presence and good legibility of the product
safety labels. Contact the factory for replacement labels in
the event that any of the labels are missing or illegible.
Danger indicates an IMMINENTLY
hazardous situation, which, if not avoided,
WILL result in death or serious injury.
Location of Danger Label
(00-0196A1)

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PRODUCT APPLICATION
CONSTRUCTION
• The water purifier is designed to mount horizontally.
• The water purifier’s removable chamber head design allows for ease of maintenance. A drain port on the chamber
aids in draining of the purifier.
• The water purifier’s chamber and chamber head are passivated and electropolished type 316 Stainless Steel.
• The ballast housing is a combination of Stainless Steel Type 304 and Aluminum Alloy.
• Coated chambers are available for uses with special applications, consult Factory. Coated chambers are not recommended for
use in drinking water applications or in applications where the treated product is consumed.
• The dual action wiper mechanism allows for quick and easy quartz sleeve cleaning, without interrupting service.
• Easy-off
TM end caps allow for quick and easy lamp change, without disconnecting from the water supply or draining the
purifier. No tools are required.
PRINCIPLE OF OPERATION
The SANITRON®design has been carefully conceived to provide adequate germicidal dosage throughout the disinfection
chamber. The dosage, as it applies to ultraviolet disinfection, is a function of time and the intensity of ultraviolet radiation to
which the water is exposed. The exposure time, in seconds, is the total time it takes the water to flow through the disinfection
chamber exposing it to the germicidal lamp. Exposure time is related to the flow rate; the higher the flow rate, the lower the
exposure time or the lower the flow rate, the higher the exposure time. The ultraviolet intensity is the amount of energy, per unit
time, emitted by the germicidal lamp. The dosage is the product of ultraviolet intensity and the exposure time. The operation of
the SANITRON®is as follows:
• Water enters the purifier and flows into the annular space between the quartz sleeve and the chamber wall.
• Suspended microorganisms are exposed to the ultraviolet rays emitted by the germicidal lamp.
• The translucent sight port, or optional ultraviolet monitor, provides visual indication of germicidal lamp operation.
• The dual action wiper mechanism facilitates periodic cleaning of the quartz sleeve without disassembly or interruption of
purifier operation.
• Water leaving the purifier is instantly ready for use, no further contact time is required.
LIMITATION OF USE
The water purifier is intended for the use with visually clear water, not colored, cloudy or turbid. See “Water Quality” section
below. The water purifier is NOT intended for the treatment of water that has an obvious contamination or intentional source,
such as raw sewage; nor is the unit intended to convert wastewater to microbiologically safe drinking water.
WATER QUALITY
Water quality plays a major role in the transmission of germicidal ultraviolet rays. It is recommended that the water does not
exceed the following maximum concentration levels:
Table 1 - Maximum Concentration Levels
Turbidity < 1 NTU
Manganese 0.05 mg/1
Total Suspended Solids 10 mg /1
pH: 6.5 - 9.5
Color: None
Hardness 6 GPG or 102.6 PPM
Iron 0.3 mg/1
Tannins: < 0.1 ppm (0.1 mg/l)
UV Transmission >85% per cm*
* Contact Factory for recommendations on applications where UV transmission is < 85%
Effectively treating water with higher concentration levels than listed above can be accomplished, but may require added
measures to improve water quality to treatable levels. If, for any reason, it is believed the ultraviolet transmission is not
satisfactory, contact the factory.

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INSTALLATION
LOCATION
1. The water purifier is intended for indoor use only. The water purifier is designed to mount horizontally. The water purifier
should be protected from the elements and from temperatures below freezing. The ambient temperature, in the area
surrounding the water purifier, should be between 35oF and 100oF.
2. Electrical power supplied to the water purifier MUST match power requirements listed on the water purifier. Use of a voltage
surge protector is recommended.
3. Plug water purifier only into an approved ground fault circuit interrupt (GFCI) receptacle.
4. The water purifier should be located in a dry, well-lit area, which provides enough room to perform routine maintenance. This
includes a minimum distance of one chamber length from the wiper end, to allow for cleaning and/or the changing of the
lamp and quartz sleeve as well as a minimum of 6” on the opposite end of the water purifier. Minimum clearance to floor 18’’.
5. The water purifier should always be located closest to the point of use. This reduces the chance of the purified water being
re-contaminated by bacteria in the water distribution system after the water purifier.
6. CAUTION: As with any water handling device, the water purifier should be located in an area where any possible
condensation or leakage from the water purifier, any purifier accessory and/or plumbing will not result in damage to the
area surrounding the water purifier. For added protection, it is recommended that a suitable drain pan be installed under the
purifier. The drain pan must be plumbed to an adequate, free flowing drain to prevent water damage in event of a leak. There
are numerous leak detection/flood stop devices, available on the market today, designed to stop flow of water, reducing the
chance of water damage due to leakage. For more details regarding leak prevention and/or limiting damages due to leaks
please contact factory.
7. The water purifier should be located after all other water devices, such as De-ionizers, Water Softeners, Carbon Filters, Pre-
Filters, Reverse Osmosis, Pressure Tanks, and Pumps. This reduces the chance of the purified water being re-contaminated by
bacteria in any of these units.
DIMENSIONAL DATA
Figure 1 - SANITRON®Dimensional Drawing
Table 2 - SANITRON®Dimensional Data
Model A B C D E F G H J Inlet/Outlet
S17A 8-3/4” 17” 8-3/4” 10” 17-3/8” 3-5/8” 4-5/16” 8-3/16” 7-3/16” 3/4”m NPT
S23A 14-3/4” 23” 13-1/4” 14-1/2” 23-3/8” 3-5/8” 4-5/16” 8-3/16” 10-3/16” 3/4”m NPT
S37C 28-1/2” 37” 16” 18” 37-3/8” 4-15/16” 5-11/16” 9-1/2” 11-1/8” 1”m NPT
S50C 40-7/8” 50” 26” 30” 50-3/8” 4-15/16” 5-11/16” 9-1/2” 13-13/16” 1-1/2”m NPT
All specifications, dimensional data, etc are approximate and subject to change without notice.

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INSTALLATION
1. Remove water purifier from shipping carton. Inspect water purifier, power cord and plug for damage. Do not operate if there
is any damage to the purifier, power cord or plug. Models S17A and S23A are shipped with the lamp already installed, while
the lamp in the S37C and the S50C is packed separately. Keep the lamp aside for installation once the purifier has been
properly installed.
2. Units occasionally experience damage in shipment due to the fragility of the quartz sleeve. It is, therefore, recommended
to inspect the water purifier for damage to the quartz sleeve after it has been removed from the shipping carton. Each end
of the unit as well as the inlet and outlet should be viewed to see if the quartz sleeve has experienced damage. If the quartz
sleeve shows signs of damage it should be replaced before the purifier is pressurized. See “Quartz Sleeve Cleaning or
Replacement” in the “Maintenance” section for the proper method of replacing the quartz sleeve in your water purifier.
3. The water purifier should be mounted horizontally on a flat dry surface. Secure the water purifier using the mounting holes
in the ballast housing or with the optional wall mounting kit. The purifier should not be solely supported by its plumbing
connections.
4. The water purifier must be connected to the cold water line only.
5. Installation requires that a 5-micron sediment filter or finer be installed, in line, prior to the water purifier. The sediment filter
will stop or trap large particulates from entering the water purifier. Particulates may cause damage to the quartz sleeve, as
well as interfere with the purifier’s ability to disinfect the water. The sediment filter may also help to reduce the amount of
routine cleaning of the quartz sleeve.
6. Shut off valves should be installed on both the inlet and outlet sides of the water purifier. The use of bypass valves is not
recommended. The shut off valves allow the purifier to be isolated from the water supply, which is required when removing
the quartz sleeve.
7. Unions should be installed on both the inlet and outlet of the water purifier; this will allow easy removal of the water purifier
from the plumbing, if required. Apply Teflon® tape to threads of inlet and outlet ports to ensure a tight seal.
8. When all plumbing connections are complete, allow water to enter the water purifier at a low flow rate, until the purifier is
full. NOTE: Close the purifier outlet valve to pressurize the chamber. With the purifier pressurized, it should be checked
for leaks. Once it is determined that there are no leaks, the inlet valve can be fully opened.
9. For Models with lamps packed separately, install lamp following the steps in “Lamp Installation or Replacement” section.
CAUTION: Lamp and quartz sleeve are easily damaged. Exercise care when handling.
10. Plug water purifier into approved ground fault circuit interrupt (GFCI) receptacle. Confirm lamp operation indication at
sight port. (Continued on Page 7)
°
Incoming
Water
Supply
COMMON
PRE-TREATMENT or
PUMPING DEVICES
1. Deionizer
2. Water Softener
3. Carton Filters (GAC)
4. Pressure Tank
5. Pump
6. Reverse Osmosis
7. Prefilters
Cold Water Line
Ultraviolet Water Purifiers
should be installed closest
to the point of use. (POU)
5 Micron Filter
Valve
Union
Manual Wiper
Elbow
Elbow
OPTIONAL EQUIPMENT
Ultraviolet Monitor
AudioAlarm
OPTIONAL EQUIPMENT
Two Minute Time Delay
Solenoid Valve
Flow Control Valve
OPTIONAL EQUIPMENT
Wall Mounting Kit
Note:
Solenoid plugs into the top of the Time Delay,
and the Time Delay into the Ultraviolet Monitor
Use of Metal Pipe is recommended for 12"
past elbow to the inlet or from the outlet.
(avoids ultraviolet degradation of exposed plastic pipe)
POINT OF USE (POU)
Ultraviolet Water Purifiers
should be installed closest
to the point of use.
Ultraviolet Water Purifier
6" Minimum
Clearance for
GlandAccess
Outlet Line to point of use
to be as short as possible
Recommended Minimum Clearance
For Lamp or Quartz Sleeve Removal
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Valve
Union
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"X"
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Note: Drain Pan
Recommended. Water
Purifier should be
installed at minimum
of 18” above floor.
Figure 2 - Recommended Installation

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11. Once the plumbing hook ups are made, it is a good practice to disinfect the “downstream” plumbing between the purifier
and point of use. This is done by introducing chlorine into the purifier chamber, a 100-ppm of chlorine is suggested. With
the chlorine in the purifier chamber, turn the ultraviolet purifier on. Open the “downstream” outlet until a chlorine odor
is noticed. Close the outlet and allow the chlorine to remain in the plumbing for three (3) hours. Flush the plumbing with
ultraviolet purified water; allow the water to run for a minimum of 5 minutes prior to use (to insure no chlorine smell can be
detected). This will allow the chlorine to be flushed from the pipes. CAUTION: For added protection, a suitable drain
pan must be installed under the purifier. The drain pan must be plumbed to an adequate, free flowing drain to prevent
water damage in the event of a leak. There are numerous leak detection/flood stop devices, available on the market
today, designed to stop the flow of water, reducing the chance of water damage due to leakage. For more details
regarding leak prevention and/or limiting damages due to leaks, please contact the factory.
RECOMMENDED OPTIONS
1. Guardian™ Ultraviolet Monitor*: Visually indicates the level of germicidal ultraviolet energy that penetrates the quartz
sleeve and the water within the water purifier. The ultraviolet monitor is capable of operating an optional audio alarm and/or
solenoid valve. The ultraviolet monitor will detect reduction of ultraviolet levels due to:
• Fouling or deposits on the quartz sleeve.
• Poor ultraviolet transmission through the water; color, turbidity, and organic or other impurities in the water can reduce
or interfere with the transmission of ultraviolet rays.
• Lamp outage or component failure. (Monitor will not function in power outage.)
• Depreciation of the lamp output due to usage or other cause. Lamp output gradually depreciates with use. Lamp
replacement is recommended once each year.
2. Sentry™ Safety Sensor: Indicators provide constant visual monitoring of normal operation. In the event of ballast or lamp
failure the safety sensor indicates an alarm condition. The safety sensor is capable of operating an optional audio alarm and/
or solenoid valve.
3. Steralert™: Lamp Status Alarm produces a high pitched, pulsed tone when the water purifier is no longer functioning due to
lamp or power failure.
4. Sure Flo™ Flow Control Valve*: Limits water flow to the rated capacity of the purifier. The flow control valve is located
in line prior to the water purifier, and should be protected from ultraviolet exposure by the use of a 90-degree elbow fitting
between the flow control valve and the water purifier.
5. Audio Alarm*: Activated by the Ultraviolet Monitor or Safety Sensor, alerts the user to any malfunction detected.
6. Solenoid Valve*: Operated in conjunction with the Ultraviolet Monitor, Safety Sensor or Time Delay Mechanism, this valve
prevents water flow through the water purifier when an abnormal condition is detected or in the event of power failure.
7. Elapsed Time Indicator: A non-resettable display of the water purifier operating hours. Useful for scheduling and recording
maintenance and lamp replacement.
8. Time Delay Mechanism*: Provides a 2-minute warm up period during which the ultraviolet lamp achieves its full
germicidal output before the water is allowed to flow through the water purifier. The time delay mechanism is used in
conjunction with, and is electrically connected to the Solenoid Valve.
9. Wall Mount Kit: Stainless steel wall brackets provide quick and easy installation and professional finish. Pre-drilled and
ready to install. Optimizes free air circulation to cool ballast housing.
10. Quantum Thermal Optimizer: Thermal relief valve used to help regulate the water temperature inside the water purifier’s
disinfection chamber. Since the relative ultraviolet output, of a germicidal lamp, is affected by temperature it is important to
keep the lamp’s temperature within the peak output temperature range.
11. Safety Goggles: Safety eyewear should be used as general-purpose safety protection and for additional shielding from
Ultraviolet rays
12. Gloves: Gloves should be worn to offer hand protection from sharp threats like glass, wire, and metal.
* Use of this option is recommended by U.S. Public Health Service “Criteria for Acceptability of an Ultraviolet Disinfection
Unit.” Originally issued April, 1966.
NOTE: The recommended options above are available fromAtlantic Ultraviolet Corporation or a distributor of Atlantic
Ultraviolet Corporation’s products. For the other devices that may be required for your application, please contact your
local water treatment dealer, plumber or plumbing supplier.

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OPTIONAL ACCESSORIES
Table 3 - Optional Accessories
Optional Accessories Available For:
Guardian™ Ultraviolet Monitor -Analog/Digital S17A through S50C
Sentry™ Safety Sensor S17A through S50C
Steralert™ S17A through S50C
Audio Alarm S17A through S50C
Elapsed Time Indicator Universal Input S17A through S50C
Wall Mounting Kit S17A through S50C
Time Delay Mechanism S17A through S50C
Quantum Thermal Optimizer: S17A through S50C
Solenoid Valve - Brass
S17A (3/4”)
S23A (3/4”)
S37C (1”)
S50C (1-1/2”)
Sure Flo™ Flow Control Valve

S17A (3/4”)
S23A (3/4”)
S37C (1”)
S50C (1-1/2”)
Most optional accessories are
available for operation at 120v 60Hz
or 220v 50Hz. Please specify.
Consult Factory for 12v DC or other
special input power requirements.
Unless otherwise specified PVC
flow control valves are supplied.
All PVC and Stainless Steel flow
control valves are male NPT.
Consult Factory for other flow
control valves
MAINTENANCE
The water purifier is designed to operate with a minimal amount of maintenance, providing the water quality does not exceed
maximum concentration levels, see “Water Quality” in the “Product Application” section. Ordinary maintenance consists of;
• Lamp replacement is recommended every 10,000 hours of operation, approximately 12 months of continuous service.
• Cleaning of the quartz sleeve, when conditions warrant. It is recommended that the inspection of quartz sleeve be performed
after one month of use. If quartz sleeve is found to be coated (not clear), then frequency of cleaning must be done more often.
Deposits or discoloration on the surface of quartz sleeve are caused by excessive levels of the subject contaminant within
the water that is in contact with the quartz sleeve. Most often false deposits on the quartz sleeve are caused by an excess of
calcium (hardness), iron or manganese. Table 1 on Page 4 lists the maximum recommended concentration of these minerals
in the water that passes through the ultraviolet purifier. If you encounter difficulty due to deposits on the quartz sleeve, your
dealer will be able to recommend suitable pretreatment to reduce or eliminate the offending contaminant. If quartz sleeve is
clean (clear) then frequency of cleaning may be extended. NOTE: SANITRON® Ultraviolet water purifiers are equipped
with a manual wiping mechanism making the process of routine cleaning easier and therefore, recommended weekly
or at the very least monthly to insure your performance. NOTE: The use of optional Guardian™ Ultraviolet Monitor
will detect loss of transmission due to coating on the quartz sleeve.
• Always disconnect the water supply and completely drain the water purifier if it will be subjected to temperatures below
freezing.
• Contact factory with questions.
INSPECTION
1. Regularly inspect the water purifier to ensure that the germicidal lamp is still in operation.
• On purifiers not equipped with the Ultraviolet Monitor, lamp operation can be verified by a visible glow through the
translucent sight port. This provides an indication of lamp operation and does not indicate the level of ultraviolet
intensity or transmission through the water.
• On purifiers so equipped, the Guardian™ Ultraviolet Monitor provides visual indication of the ultraviolet intensity
through the quartz sleeve and water in the purifier chamber.
2. To ensure proper operation of the water purifier, regular biological testing should be performed on a schedule recommended
by local public health authorities, or at minimum; at installation, quarterly for the first year of service and annually, at lamp
replacement, for the life of the water purifier.
3. Additional testing should be performed whenever modifications, change, or additions are made to plumbing system, pumps,
well source water etc. to ensure adequate disinfection under new condition.

9
DISPOSAL OF MERCURY ADDED LAMPS
Germicidal ultraviolet lamps, like standard fluorescent lamps contain small amounts of mercury. Mercury added lamps
should not be placed in the trash. Dispose of properly. For further information regarding the disposal and recycling of
lamps containing mercury, along with Federal and State requirements visit http://www.lamprecycle.org. Product Data
Sheets for germicidal ultraviolet lamps can be found in the “PDF Library for Ster-L-Ray®Germicidal Ultraviolet
Lamps” section of http://www.ultraviolet.com.
LAMP INSTALLATION OR REPLACEMENT
SAFETY EQUIPMENT REQUIRED TO PERFORM TASK
1. WARNING: Disconnect power to water purifier.
2. Remove both EASY-OFFTM end caps by pulling each cap off static gland nut. Slide each end cap along the wire away from
the socket.
3. Carefully withdraw lamp approximately 2 inches from chamber while feeding lamp socket and lead wire on opposite end of
chamber.
4. While holding lamp end, carefully remove lamp socket on end now exposed.
5. Next, carefully slide lamp back into chamber, until approximately 2 inches of the lamp is exposed on the opposite end. Hold
lamp and remove lamp socket.
6. Lamp should now be disconnected on both ends. Carefully remove lamp from chamber. Be sure to withdraw lamp straight
out without angling until completely clear of quartz sleeve.
CAUTION: Lamp and quartz sleeve are easily damaged. Exercise care when handling.
7. Reinstall lamp in reverse order.
WARNING: Germicidal ultraviolet rays are harmful to eyes and skin. Do not restore power to water purifier until
lamp and both EASY-OFFTM end caps have been properly reinstalled.
Step 2 - Remove End -Cap
Step 6 - Remove LampStep 4 & 5 - Remove SocketsStep 3 - Withdraw Lamp
Figure 3 - Lamp Replacement

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QUARTZ SLEEVE CLEANING USING WIPER MECHANISM
Step 3 - Push wiper back inStep 2 - Gently pull wiper knob outStep 1 - Lift wiper clip up
Figure 4 - Quartz Sleeve Cleaning
Routine cleaning of the quartz sleeve is easily accomplished, using the dual action wiper mechanism.
1. Lift wiper clip up and away from wiper rod.
2. Grasp wiper knob and gently pull out, away, from the purifier until it reaches its stop.
3. Push wiper back in, toward the purifier until it reaches its second stop.
4. Repeat steps 2 and 3 as necessary.
5. Holding wiper in place, return wiper clip and snap over wiper rod, in front of the wiper lock spacer.

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QUARTZ SLEEVE INSTALLATION OR REPLACEMENT
Step 6 - Remove Quartz SleeveStep 5 - Remove Washer & O - RingsStep 4 - Remove Gland Nuts
Figure 5 - Quartz Sleeve Cleaning or Replacement
SAFETY EQUIPMENT REQUIRED TO PERFORM TASK
1. WARNING: Disconnect power to water purifier.
2. Shut off water supply to water purifier via inlet and outlet shut off valves. Drain chamber by removing drain plug. Once
the chamber is completely drained, remove any old sealing tape from the threads of the drain plug, rewrap with 1/2” wide
Teflon® thread sealing tape, reinstall and tighten the drain plug.
3. Follow the steps in “Lamp Installation or Replacement” to remove lamp.
CAUTION: Lamp and quartz sleeve are easily damaged. Exercise care when handling.
4. Unscrew static gland nuts from each end of the chamber. Avoid striking quartz sleeve with static gland nut.
5. Remove Teflon® washer and o-ring from both ends of quartz sleeve. Teflon® washer will sometimes remain within the static
gland nut. If so, remove Teflon® washer from static gland nut before proceeding.
6. Carefully remove quartz sleeve from chamber. NOTE: It is advisable to support the quartz sleeve on the opposite end
with your finger so that it does not drop to the bottom of the chamber as it slides into the chamber.
7. Once the quartz sleeve is removed, clean with alcohol or a mild, non-abrasive detergent. Stubborn stains usually can be
removed with a dilute hydrochloric acid. NOTE: Follow all manufacturer’s instructions and precautions when handling
chemicals.
8. Reassemble in reverse order. Make sure the quartz sleeve protrudes an equal distance past each threaded nipple. Be sure
o-rings are placed on quartz sleeve before Teflon® washer.
9. Tighten static gland nuts firmly by hand only, DO NOT USE HAND TOOLS. Tightening with hand tools is likely to cause
quartz sleeve to break.
10. Slowly restore water supply to water purifier and check for leaks.
11. If no leaks occur, reinstall lamp, following the steps in “Lamp Installation or Replacement” section.
WARNING: Germicidal ultraviolet rays are harmful to eyes and skin. Do not restore power to water purifier until
lamps and both EASY-OFFTM end caps have been properly reinstalled.
W

12
REPLACEMENT OF BROKEN QUARTZ SLEEVE
Figure 6 - Quartz Sleeve Cleaning
SAFETY EQUIPMENT REQUIRED TO PERFORM TASK
CAUTION: Broken Quartz is SHARP. It is recommended that protective goggles and gloves are worn when handling.
WARNING: Disconnect power to water purifier. Shut off water supply to water purifier via inlet and outlet shut
off valves. Drain chamber by removing drain plug.
Follow the steps in “Quartz Sleeve Installation or Replacement” to remove lamp and quartz sleeve.
1. To prevent damage to the electrical components, it is necessary to separate the ballast housing from the purifier chamber.
• On SANITRON®Models S17A, and S23A, the ballast housing is mounted to the purifier chamber using four (4) No. 8 x
3/8” long screws. Using a Phillips cross point screwdriver, carefully remove the four (4) screws, from along the sides of
the ballast housing, and set aside. Separate the housing from the chamber.
• On SANITRON®Models S37C and S50C, the ballast housing is mounted to the purifier chamber using four (4) 1/4”-20
x 3/8” long hex head bolts. Using a 7/16” wrench or an adjustable wrench, carefully remove the four (4) bolts with the
lock and flat washers, from along the top of the ballast housing, and set aside. Separate the housing from the chamber.
• Keep ballast housing and mounting hardware in a clean, dry area.
2. CAUTION: Carefully remove as much of the broken quartz sleeve as possible, from each end of the chamber.
3. Remove chamber head clamp, by using a 7/16” wrench to loosen and remove the 1/4” nut from the head clamp
4. Withdraw chamber head and wiper assembly, from the chamber.
5. Any broken pieces of the quartz sleeve can now be removed through the open end of the purifier chamber. Flush water
through chamber being careful to remove all quartz fragments from the interior of the chamber.
6. Carefully discard all pieces of the broken quartz sleeve.
7. Inspect the large O-ring used to seal the chamber and the chamber head. Make sure the O-ring is seated properly between the
chamber head ring and the flare of the chamber head.
8. Insert replacement quartz sleeve through each Teflon® wiper segment, starting from the furthest segment working towards
the chamber head. Twisting the quartz sleeve will help work the quartz sleeve through the Teflon segments. Align the end of
the quartz sleeve with the threaded gland nipple of the chamber head, and pass the quartz sleeve through the chamber head.
9. To re-install, carefully slide the chamber head and wiper rod assembly, into the chamber, with drain port pointing down; using
your finger, support the far end of the quartz sleeve when passing it through the gland fitting of the chamber. Push chamber
head flange into the chamber until flared end, of the chamber and the head, mate against the O-ring.
10. Replace the head clamp around the flared end of the head and chamber. Install the 1/4” nut and tighten, using a 7/16” wrench,
until approximately 3/4” to 7/8” of the bolt protrudes past the nut.
11. Center the quartz sleeve in the chamber, making sure the quartz sleeve protrudes an equal distance past each threaded gland
fitting, of the chamber. (Continued on Page 13)

13
If after cleaning the quartz sleeve, there is no significant improvement in the ultraviolet intensity, as shown on the intensity meter,
it may be necessary to clean the Ultraviolet Monitor’s sensor probe. The sensor probe body mounts in a fitting, located in the
center of the disinfection chamber, and protrudes into the chamber.
1. WARNING: Disconnect power to water purifier.
2. Shut off water supply to the water purifier via the inlet and outlet shut off valves. Drain the chamber by removing the drain
plug. Once the chamber is drained, remove any old sealing tape from the threads of the drain plug, rewrap with 1/2” wide
Teflon® thread sealing tape, reinstall and tighten the drain plug.
3. Disconnect power to the Ultraviolet Monitor; remove from chamber by loosening the two setscrews on the aluminum collar
and lifting it free from probe body.
4. Unscrew the sensor probe and remove from the chamber.
5. Remove the quartz rod sensor probe cap, from the probe body. Take care not to damage the quartz rod, o-ring or the threads
of the probe body. NOTE: It is recommended, when servicing the sensor probe, to work in a clean, dry area.
6. Once the quartz rod is removed, clean with alcohol or a mild detergent, and rinse with clean water. Stubborn stains usually
can be removed with a dilute hydrochloric acid. NOTE: Follow all manufacturer’s instructions and precautions when
handling chemicals. Once the quartz rod has been cleaned, handle the rod by the sides, to avoid getting fingerprints on the
quartz rod faces.
7. Clean the probe body, by removing any dirt or deposits on all surfaces. O-rings should be inspected and can be replaced if
worn or damaged.
8. Reassemble, replacing the o-rings, quartz rod and securing in place with the quartz rod sensor probe cap. Tighten the quartz
rod sensor probe cap by hand only, DO NOT USE HAND TOOLS. Tightening with hand tools may damage the quartz rod
or o-ring seal.
9. Reinstall sensor probe into the center fitting of the chamber and hand tighten.
10. Slowly restore water supply to the water purifier, pressurize, and check for leaks. Once it is determined that there are no
leaks, inlet valve can be fully opened.
11. Reposition Ultraviolet Monitor on probe body and tighten set screws.
12. Restore power to the water purifier and ultraviolet monitor. If after the cleaning of the quartz rod, there is still no significant
improvement in the ultraviolet intensity, as shown on the intensity meter, proceed to the “Troubleshooting” section.
12. Re-install o-rings, Teflon® washers, and static gland nuts. Be sure o-rings are placed on quartz sleeve before Teflon® washer.
Tighten static gland nuts firmly by hand only, DO NOT USE HAND TOOLS. Tightening with hand tools is likely to cause
quartz sleeve to break.
13. Re-assemble ballast housing to purifier chamber, using hardware removed in Step 2. NOTE: When re-assembling ballast
housing to purifier chamber, electrical power cord should exit ballast housing from the end mounted opposite the drain plug.
14. When all connections are complete, allow water to enter the water purifier at a low flow rate until the purifier is pressurized.
With the purifier pressurized, it should be checked for leaks.
15. See “Lamp Installation or Replacement” section to properly re-install the lamp into the water purifier.
OPTIONAL GUARDIANTM ULTRAVIOLET MONITOR SENSOR PROBE CLEANING
Figure 7- Ultraviolet Monitor and Sensor Probe Figure 8 - Sensor Probe

14
TROUBLESHOOTING
WARNING: Always disconnect power to the water purifier before performing any service or maintenance.
IMPORTANT: This unit is to be serviced ONLY by qualified, and appropriately licensed, personnel.
Table 4 - Troubleshooting
Problem Possible Cause Corrective Action
Purifier not operating No electrical power.... Verify that the purifier is connected to a live power
source.
Water leaking into/from purifier.
Cracked or broken quartz sleeve... Shut down purifier, drain, and replace quartz sleeve. See “Quartz Sleeve Installation or
Replacement” in the “Maintenance” section
Quartz sleeve sealing o-ring (s) worn,
damaged...
Shut down purifier, drain, and remove static
gland nut, replace sealing o-ring. See “Quartz
Sleeve Installation or Replacement” in the
“Maintenance” section
Poor, or loose, connections or ttings
Tighten suspect connection or tting; or shut down
purier, drain, and remove tting or connection.
Clean threads; reapply thread sealing tape and
reinstall.
Poor purifier performance AND/OR Low UV intensity (As
indicated on optional GuardianTM Ultraviolet Monitor)
Quartz sleeve fouled... Clean quartz sleeve, see “Quartz Sleeve
Cleaning” in the “Maintenance” Section.
Sensor Probe, if equipped, lens
fouled...
Clean lens or Quartz Rod, see “Optional
Ultraviolet Monitor Sensor Probe Cleaning” in
the “Maintenance” section
Germicidal lamp output depreciating... Replace lamp, as it nears its end of life (EOL). See “Lamp Installation or Replacement” in the
“Maintenance” section.
Germicidal lamp not functioning... Replace lamp. See “Lamp Installation or
Replacement” in the “Maintenance” section
Low input voltage... Verify input voltage to purifier.
Change in water quality.... Have water tested to confirm that it does not exceed maximum recommended concentration
levels for use with this purifier.

15
TECHNICAL SPECIFICATIONS
Table 5 - Technical Specifications
Model: S17A S23A S37C S50C
Flow Rate (GPM): 3 6 12 20
Inlet\Outlet Size: 3/4”m NPT 3/4”m NPT 1”m NPT 1-1/2”m NPT
Number of Lamps: 1111
Lamp Model No.: 05-1098-R 05-1097-R 05-1343-R 05-1334-R
Length: 17-3/8” 23-3/8” 37-3/8” 50-3/8”
Width: 4-5/16” 4-5/16” 5-11/16” 5-11/16”
Height: 8-3/16” 8-3/16” 9-1/2” 9-1/2”
Chamber Diameter: 4-1/4” 4-1/4” 4-1/4” 4-1/4”
Shipping Weight: 11 Lbs 14 Lbs 22 Lbs 36 Lbs
Voltage: 120V 120V 120V 120V
Amps: .23A .33A .65A .42A
Frequency: 60Hz 60Hz 60Hz 60Hz
Power Consumption: 18 Watts 25 Watts 48 Watts 65 Watts
Lamp Watts: 14 Watts 21 Watts 41 Watts 55 Watts
Max Operating Pressure: 100 PSI 100 PSI 100 PSI 100 PSI
Ambient Temperature: 33° F - 100° F 33° F - 100° F 33° F - 100° F 33° F - 100° F
Quartz Sleeve: 11 1 1
Drain Plug: 1/4” NPT 1/4” NPT 1/4” NPT 1/4” NPT
Lamp Out Indicator: Translucent Sight Port Translucent Sight Port Translucent Sight Port Translucent Sight Port
Ultraviolet Monitor: Optional Optional Optional Optional
Flow Control Valve: Optional Optional Optional Optional
Audio Alarm: Optional Optional Optional Optional
Solenoid Valve: Optional Optional Optional Optional
Time Delay Mechanism: Optional Optional Optional Optional
Elapsed Time Indicator: Optional Optional Optional Optional
Quantum Thermal Optimizer: Optional Optional Optional Optional
220V 50Hz, 220V 60Hz, 12V, or 24V DC units are also available. Consult Factory for specific voltage requirements.
Use of this option is recommended by U.S. Public Health Service “Criteria for Acceptability of an Ultraviolet Disinfection Unit.”
Originally issued April, 1966.
Total power consumption, including ballast loss (based on 120V unit).
All specifications, dimensional data, etc are approximate and subject to change without notice.

16
REPLACEMENT PARTS
SANITRON®MODELS S17A & S23A
Figure 9 - Exploded View S17A & S23A

17
Table 6 - Replacement Parts S17A & S23A
Item No. Description S17A S23A
Quantity Part Number Quantity Part Number
1 Easy-Off End Cap 2 25-1499A1 2 25-1499A1
2 Rubber O-ring, Static Gland 2 00-1108B 2 00-1108B
3 Lamp Spacer 2 25-0210A 2 25-0210A
4 Lead Wire & Socket 2 05-1219B2 2 05-2223A
5 Lamp 1 05-1098-R 1 05-1097-R
6 Static Gland Nut 2 25-1492D 2 25-1492D
7Teflon® Washer 2 25-1235A 2 25-1235A
8 Rubber O-ring, Quartz Sleeve 2 00-1238A 2 00-1238A
9 Quartz Sleeve 1 15-1051A2 1 15-1051A3
10 Head, Flared 1 25-1302A 1 25-1302A
11 Rubber O-ring, Flared Head 1 00-0028A 1 00-0028A
12 Chamber Head Clamp 1 25-1506B1 1 25-1506B1
13 Wiper Rod Assembly 1 25-0083A 1 25-0084A
14 Sight Port Plug 1 30-1075 1 30-1075
15 Chamber 1 25-1524D1 1 25-1523E1
16 Wiper Knob 1 25-1222 1 25-1222
17 Wiper Lock Spacer 1 25-1512A1 1 25-1512A1
18 Wiper Clip 1 25-1507C1 1 25-1507C1
19 Dynamic Gland, Wiper Lock 1 25-1510C1 1 25-1510C1
20 Drain Plug 1 27-1216 1 27-1216
21 Screw, No. 8 x 3/8” long 4 50-1323 4 50-1323
22 Speed Nut, 6-32 2 50-1314 2 50-1314
23A Ballast, 120v 60Hz 1 10-0137 1 10-0137
23B Ballast, 220v 50Hz 1 10-0136 1 10-0136
24 Screw, Mounting 2 50-0376 2 50-0376
25 Ballast Housing 1 25-1105C 1 25-1544E
26 Pushnut 8 50-1223A 8 50-1223A
27 Welded Wiper Rod 1 25-1535A1 1 25-1536A1
28 Teflon® Wiper Segment 4 25-1241A 4 25-1241A
29 Wiper Backup Ring 2 25-1381A 2 25-1381A
30 Rivet 8 50-1300A 8 50-1300A
31A* Power Cord 6’(120v 60Hz) 1 35-1100 1 35-1100
31B* Power Cord 6’(220v 50Hz) 1 35-1452-R 1 35-1452-R
32 Standoff, Mounting 2 50-0375 2 50-0375
* not depicted in drawing
All specifications, dimensional data, etc are approximate and subject to change without notice.

18
SANITRON®MODELS S37C & S50C
Figure 10 - Exploded View S37C & S50C

19
Table 7 - Replacement Parts S37C & S50C
Item No. Description S37C S50C
Quantity Part Number Quantity Part Number
1 Easy-Off End Cap 2 25-1499A1 2 25-1499A1
2 Rubber O-ring, Static Gland 2 00-1108B 2 00-1108B
3 Lamp Spacer 2 25-0210A 2 25-0210A
4 Lead Wire & Socket 2 05-1218A2 2 05-1218A2
5 Lamp 1 05-1343-R 1 05-1334-R
6 Static Gland Nut 2 25-1492D 2 25-1492D
7Teflon® Washer 2 25-1235A 2 25-1235A
8 Rubber O-ring, Quartz Sleeve 1 00-1238A 1 00-1238A
9 Quartz Sleeve 1 15-1051A4 1 15-1051A5
10 Head, Flared 1 25-1302A 1 25-1302A
11 Rubber O-ring, Flared Head 1 00-0028A 1 00-0028A
12 Chamber Head Clamp 1 25-1506B1 1 25-1506B1
13 Wiper Rod Assembly 1 25-0085A 1 25-0086A
14 Sight Port Plug 1 30-1075 1 30-1075
15 Chamber 1 25-1522G1 1 25-1521F1
16 Wiper Knob 1 25-1222 1 25-1222
17 Wiper Lock Spacer 1 25-1512A1 1 25-1512A1
18 Wiper Clip 1 25-1507C1 1 25-1507C1
19 Dynamic Gland, Wiper Lock 1 25-1510C1 1 25-1510C1
20 Drain Plug 1 27-1216 1 27-1216
21 Screw, 1/4”-20 x 3/8” long 4 50-1034 4 50-1034
22 Lock Washer, 1/4” 4 50-1321 4 50-1321
23 Flat Washer 1/4” 4 50-1317 4 50-1317
24 Ballast Housing Cover 1 25-0394A 1 25-0350A
25 Screw, No. 8 x 3/8” long 8 50-1323 8 50-1323
26 Speed Nut, 6-32 2 50-1314 2 50-1314
27A Ballast, 120v 60Hz 1 10-0137 1 10-0091
27B Ballast, 220v 50Hz 1 10-0136 1 10-0127
28 Ballast Housing 1 25-0395D 1 25-0351B
29 Screw, Mounting 2 50-0376 2 50-0376
30 Pushnut 12 50-1223A 16 50-1223A
31 Welded Wiper Rod 1 25-1537A1 1 25-1538A1
32 Teflon® Wiper Segment 6 25-1241A 8 25-1241A
33 Wiper Backup Ring 3 25-1381A 4 25-1381A
34 Rivet 12 50-1300A 16 50-1300A
35A* Power Cord 6’(120v 60Hz) 1 35-1100 1 35-1100
35B* Power Cord 6’(220v 50Hz) 1 35-1452-R 1 35-1452-R
36 Standoff, Mounting 2 50-0375 2 50-0375
* not depicted in drawing
All specifications, dimensional data, etc are approximate and subject to change without notice.

20
USER ASSISTANCE
WARRANTY
We warrant that this product will be free from defects in material and workmanship for a period of one year from the date of
shipment thereof or the product’s total rated life, whichever first occurs. Within the warranty period we shall repair or replace such
products, which are returned to us with shipping charges prepaid, and which are determined by us to be defective. This warranty
will not apply to any product, which has been subjected to misuse, negligence, or accident; or misapplied; or modified; or repaired
by unauthorized persons; or improperly installed.
The Buyer shall inspect the product promptly after receipt and shall notify us at our main office in writing of claims,
including claims of breach of warranty, within thirty (30) days after the Buyer discovers or should have discovered the facts upon
which the claim is based. Failure of the Buyer to give written notice of a claim within the time period shall be deemed to be a
waiver of such claim.
The provisions of the above warranty are our sole obligation and exclude all other remedies or warranties, expressed or
implied, including warranties of merchantability and fitness for a particular purpose, whether or not purposes or specifications
are described herein. We further disclaim any responsibility whatsoever to the customer, or to any person, for injury to person,
damage to, or loss of property or value caused by any product which has been subjected to misuse, negligence, accident; or
modified or repaired by unauthorized persons; or improperly installed.
Under no circumstances shall the Atlantic Ultraviolet Corporation®be liable for any incidental, consequential or special
damages, losses or expenses arising from the contract for this product, or in connection with the use of, or inability to use, our
product for any purpose whatsoever.
PATENT NOTICE
No attempt has been made to determine the patent status of applications illustrated or described in this publication. Inclusion
in this publication of any design or method of use, which may be patented, is not to be construed as promoting or sanctioning
unauthorized use.
Atlantic Ultraviolet Corporation®
makes every effort to ensure that
the SANITRON®Ultraviolet Water
Purifiers are products of superior
quality and workmanship. This manual
describes the installation, operation
and maintenance of the SANITRON®
Ultraviolet Water Purifiers
Please read and become familiar with
the contents of this manual before
installing or using this unit. If after
reading the manual you still have
questions, or concerns, regarding the
installation or use of this unit, contact
our offices, weekdays between 8:30 am
and 5:00 pm Eastern Time, at:
Atlantic Ultraviolet Corporation®
375 Marcus Boulevard
Hauppauge, New York, 11788
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
Website:www.ultraviolet.com
www.buyultraviolet.com
PRODUCT REGISTRATION
Please REGISTER your product immediately - you can do this in a number of ways. Go online to Ultraviolet.com and on the
bottom left of each page either click on “Fill out Warranty Reg. Form on-line!” complete and hit submit or click on “Download
a PDF of the Warranty Reg. card” which you can print, fill out and mail in. If you prefer to register over the telephone please call
631-273-0500.
Atlantic Ultraviolet Corporation®takes all possible precautions when packaging equipment to prevent damage. Carefully
inspect and report all damage. Do not install damaged equipment. Follow all instructions on any labels or tags. Carefully inspect
all packing materials before discarding to prevent the loss of accessories, mounting hardware, spare parts or instructions.
For your convenience, record the following information below. The model and serial number can be found on a label located
on the SANITRON®Ultraviolet Water Purifier. Keep this manual, along with proof of purchase, handy when contacting our
offices.
Purchased From: Date:
Model: Serial No.: