Glasco UV GUV SHIELD Series Manual

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GUV SHIELD SERIES (30 and 50)
UV WATER DISINFECTION SYSTEM
OPERATION & MAINTENANCE MANUAL
GUV-SHIELD-50 MAN
GUV-SHIELD-50

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Use the attached chart to record lamp changes to the system:
INSTALL DATE:
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
Lamp Change Date
1. Your Disinfection Unit – Pre-Installation
You should have received the following:
A. A disinfection chamber
B. UV lamps
C. Quartz sleeves
D. Compression nuts
E. Power Supply
F. O-rings
G. Wiper rings (if supplied with manual wiper)
Lamp # Quartz # O-ring # Compression Fitting #
GUV SHIELD-30-MAN #2 L-572433 #2 Q-582035 #4 M-75214O #4 M-A100CN
GUV SHIELD 50-MAN #2 L-024433 #2 Q-582035 #4 M-75214O #4 M-A100CN
Your Ultraviolet (UV) water disinfection system has been tested at the manufacturing facility.
The unit has been hydrostatically pressure-tested to 100 psi. In some cases, a small
amount of water may remain in the vessel. In order to insure that the unit works at optimum
performance, please follow the instructions outlined in this manual.
1.1. Warning
UV light is harmful to your eyes and skin. Do not look directly into the light. Always unplug
(disconnect power) your unit before installing or removing a lamp. Your unit may have a
green LED light that indicates that the lamp is operating and the unit has an audible alarm
that will sound in the event of lamp failure. If the LED goes out, contact your dealer for
service. If your unit has an audible alarm and it goes off, contact your dealer.

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Since the unit is run by electricity, please remember to disconnect all power before servicing
the equipment. Failure to do so may result in serious injury or death.
When handling lamps and quartz, use gloves to prevent them from becoming dirty. If they
do, wipe them with alcohol.

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1.2. Your Water Supply
Glasco recommends that trained professionals test and maintain your water supply. In
addition to testing the water to see if UV is appropriate, we recommend pre-filtering systems
(softeners, carbon or reverse osmosis) to help remove tastes, odors, minerals and cysts.
The following parameters are recommended for UV applications:
• Iron: < 0.3 ppm (0.3 mg/L)
• Hardness: < 7 gpg (120 mg/L)
• Turbidity: < 5 NTU
• Manganese: <0.05 ppm (0.05 mg/L)
• Tannins: < 0.1 ppm (0.1 mg/L)
• UV Transmittance: >75% (Lower levels can be treated but the factory should be
consulted to properly size the system)
If your water contains levels in excess of the above levels proper pre-treatment is
recommended to correct these levels prior to the UV system installation. A 20 micron filter is
recommended.
1.3. UV Effectiveness
Your disinfection unit needs to be maintained. Change your lamp on a yearly basis and
insure that the quartz sleeve is cleaned on a regular basis.
Failure to do periodic maintenance will impact your unit’s effectiveness.
1.4. Flow Rate
Your unit has been designed to accommodate a certain flow rate. In order to work effectively,
you may need to install a flow control device. This device attaches to the inlet and controls
the water that enters the system. Note: your system may have come with a flow controller.
Failure to use a flow control (available at most plumbing supply stores) may reduce the
effectiveness of your disinfection unit. It should be noted that many higher flow applications
have a steady flow rate and a flow restrictor may slow down the water too much.
1.5. Inspection
Insure that lamps and quartz have not been broken. We recommend that you use gloves
when handling lamps and quartz sleeves to prevent them from becoming dirty. Dirt and skin
oils will impact the UV output.
A warranty sheet has been included. Please fill out the warranty and send back to
manufacturer or dealer. This warrantees the chamber for 7 years and electrical components
for 1-year.

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1.6. Electrical Requirements
The electronics have been designed to work with standard power supplies. Since the unit is
susceptible to power fluctuations, we recommend that the system be kept off any lines where
there are surges. This includes pumps or motors. If there are fluctuations, please use a
surge suppressor. Systems will come with plugs, which require no “hard wiring”. Please look
at the outside of the electrical “box” for Voltage, Cycle and AMP draw. The ballast control
should be connected to a grounded outlet and for safety purposes the system should be
connected to a ground fault interrupt circuit. If the incoming power is subject to power surges
it is also recommended that a surge suppressor be installed.
1.7. Location of Unit
The UV system is designed for indoor use only and should not be subject to weather
conditions. UV disinfection works best when it is installed closest to point of use. The system
should be installed after any pre-treatment equipment. The system should be installed after
the storage tank and before the water line splits to the hot water heater. When installing,
remember that you will need to be able to remove lamps and quartz as part of a maintenance
schedule. Allow yourself enough room to accomplish these tasks. The chamber can be
mounted vertically or horizontally. When installing horizontally we recommend the Inlet/outlet
can face up to prevent air being trapped in the chamber. When installing vertically we
recommend the inlet be on the bottom for the best hydraulic characteristics. If the system has
been modified with a sensor port please do not install it facing down. The ballast should be
mounted either above or beside the disinfection chamber. It is good practice to provide “drip
loops” for the wiring going to the ballast to prevent any water from entering the ballast control
box.
UV disinfection system outdoors is possible, but the factory will need to know the location.
This will determine the type of electrical enclosure and the fitting required for water proofing
systems from elements.

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2. Your Disinfection Unit – Installation
If you are attempting to install the unit by yourself and you have questions, please call your
water quality or plumbing professional. Improper installation can cause potential water
damage to your property and can also reduce the effectiveness of the UV disinfection
system.
2.1. Recommended Supplies
Before getting started, you will need the following:
• Screws to bolt the unit into place and the power supply
• Teflon tape to insure quality sealing
• Shutoff values for both the inlet and outlet
• Unions before and after the unit
• Optional: Flow control (from dealer or plumbing supply house) Note: many
units come with this as a standard accessory. It looks like a brass disk with a
rubber insert. This will be press fit into the inlet and outlet.
2.2. Mounting the Vessel - Plumbing
Your unit may be installed under the sink or where the water enters the building. In either
case, we recommend that shutoff valves be installed before the inlet and after the outlet.
This allows for easier yearly servicing and allows you to shut off the water supply if you have
a problem with the unit.
Mount the chamber to the wall using the mounting brackets attached to the chamber. Various
connections may be used for the water inlet/outlet but be sure to perform any solder
connections without the quartz sleeve and O-ring installed to prevent any damage from the
heat generated.
A damaged quartz sleeve can cause a potential leaking problem. An unchecked leak can
lead to severe flooding.

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2.3 Mounting the Power Control Center
The unit will come with a remote Ballast Control Center (BCC). This is an enclosure that
houses the electronics. The UV lamps are powered thru the use of electronic ballasts. The
BCC will display lamp operating status in the form of a GREEN LED indicating lamp is
operating. The system will also have a non-resettable digital run time meter that should be
used to change your lamps every 9,000 hours.
2.4 Quartz for Open-ended Units (creating a watertight unit)
An open system has openings on each end of the unit. The quartz will also have openings
on both ends.
The unit will have come with compression nuts that are in place and hold O-rings. Remove
the nut and the O-ring. Insert the quartz into the unit. Use your fingers on both sides to
guide it into place. Move the quartz so it comes out of the unit at equal lengths on both sides.
Making sure that the O-ring is sitting properly in the compression nut, loosely hand tighten
each nut into place. Before tightening, re-check to insure that the quartz is extending equally
out of each side. You can do this by inserting your fingers on both sides and judging the

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appropriate distance. Once done, tighten until you have a secure fit. Create a tight seal, but
not too tight as you may crack the quartz sleeve.
Now that it is in place, you can test the unit to see if it is watertight. Slowly pressurize the unit
by allowing water to run through the unit for five minutes. As this is happening, check to see
if the seal is dry. If it is not, you will need to redo the seal. If it is dry, you are prepared for
lamp installation.

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Removable Head with Gasket for systems with manual wipers
Front Head (removable if
equipped with wiper)
Back Head (welded closed)

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2.4 Installing the Lamp
Carefully slide the lamp into the quartz (dropping the lamp can break the quartz). Once it is
in place, connect the lamp to the socket. When you have done that, tighten the cap to the nut
and then plug in the unit. For systems that are designed for outdoor use, the cap will have a
strain relief to prevent water from infiltration.
3. Maintenance –(optional quartz sleeve wiper)
As noted in this manual, your lamp needs to be replaced on a yearly basis to insure proper
disinfection. The quartz sleeve should be inspected and cleaned at this time. Depending on
the water quality the quartz sleeve may need to be cleaned on a more frequent basis.
The quartz may have “build up” on it. If it does, clean it with soap and water. If the quartz is
stained, use a product like CLR or Lime-A-way (both available at the grocery store).
In many projects, the unit has come equipped with a manual quartz cleaning system. This
plunger allows the operator to push a yoke back and forth to clean the UV systems quartz
sleeves.
When using the wiper system, insure that the Blades are not parked in front of the UV sensor
as this will provide false readings.
When you remove the quartz, please follow the same instructions as above in reverse.
Track you maintenance record on the front page of this manual.
4. Operation Status and Alarms
Basic systems come with lamp status displays LEDs. The Green LED indicates that the
lamp is operating. In the event that it goes out, it may mean that the lamp is out.
A run time meter allows the user to track the operating hours of the system and allows the
operator to track the 9,000 hours and allows the operator to replace the lamp at the right
time.
5. Service Instructions
•Disconnect power to the system
•Remove expired lamp from the system
•Depressurize, drain chamber and inspect clean the quartz sleeve if necessary.
•Reassemble quartz sleeve, pressurize and inspect for leaks.
•Install new UV lamp and securely attach lamp connector.
•Power the system back up

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6. Recommendations
• Use a licensed plumber or qualified water professional to do the installation.
• Check the unit on a regular basis to see if the lamp is on (the green LED
indicator will tell you if the lamp is working).
• When first installing the unit, you will need to make insure that all plumbing after
the unit has been sanitized. This will make sure that all microorganisms have
been destroyed. Plumbers often fill the UV chamber with disinfectant and flush
out the pipes. They do this by opening all spigots and allowing the disinfectant
to run its course through the pipes. Professionals should do this because many
disinfectants can be harmful or fatal if swallowed.
• Install carbon filters, softeners and reverse osmosis systems BEFORE the UV
system. These types of filters can breed microorganisms.
• Use a flow control device that is rated for your unit’s GPM flow rate.
7. Options
Your system may have come with optional equipment. If it did, instructions for these options
are attached.
Manual Quartz Cleaning System
Your system may have come with an optional manual quartz cleaning system. This device
will allow you to clean the quartz sleeve without having to disassemble the disinfection
chamber.
! WARNING ! The plunger may be forced out when water pressure builds up. When
installing the unit, make sure that you stand clear of the plunger when pressurizing the
system.
In order for the system to work at optimum performance, you must clean the quartz on a
periodic basis. To clean quartz, pull the plunger toward you and then push it in again. Do this
a few times a month.
You may need to change the o-rings on the wiper on a periodic basis. Please open the
system once a year to inspect the quartz and the wiper rings.

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UV monitoring system
A sensor will view one lamp and provide an output from 0-100%. The meter will display the
output. In the event of a low reading, it may mean that the lamp is getting toward the end of
its life, the quartz sleeve has become fouled or the water quality may have changed.
Hand Off Auto
A hand off auto switch can be integrated to allow for remote On/Off.
Automatic Shut-off Valve aka Normally Closed Solenoid
Your system may have come with an optional automatic solenoid valve.
This device will stop the water flow if the UV lamp goes out or if the UV intensity falls. It is
considered a “normally closed” valve. This means that when there is no power to it, it closes.
This will occur during a power outage or lamp failure.
The solenoid will work off of a signal from the ballast, which indicates lamp out. If lamp fails,
then the solenoid will shut off the water supply.
The solenoid will also work off of a signal from the UV monitor, when the UV intensity has
fallen to an unsafe level. In the event of water stoppage, you will need to correct the
problems.
Reasons for stoppage include: Power failure, Lamp is out, Ballast is out, UV lamp is failing,
Solenoid is damaged
There is a manual override on some of the valves. Call your water professional in case of an
emergency. The manual valve is a white toggle switch. In order to open the valve, it must
have power. This is generally provided by the UV system, but in emergencies, power can be
brought directly to the valve.
The main power box control will have leads for attaching the solenoid. These leads will need
to be connected to the leads on the actual solenoid valve. The solenoid will have come with
connectors.
The solenoid valve will have an arrow on it indicating flow direction. Please install it the
solenoid so that the path of the water goes with the arrow.

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WARRANTY REGISTRATION
MODEL NUMBER/TYPE: ________________________
DEALER NAME: ___________________________
PURCHASE DATE:_________________________
NAME:______________________________________________________________
ADDRESS:___________________________________________________________
CITY: STATE: ______POSTAL CODE: ___
COUNTRY:_______________
PHONE:_______________ EMAIL:__________________________
Please fill out the above information and forward it to your dealer. This will provide you with a
7-year warranty on the stainless steel chamber and a 1-year warranty on the electrical
components. UV lamps are warranted for 30 days. After the initial 30 days of operation,
replacement or refund will be pro-rated based on the expected lamp life of 9,000 hours.
In addition, this will allow your dealer to remind you when it is time to replace your lamp and
quartz.
This warranty applies to equipment that has been installed and maintained according to the
instructions in this manual. Manufacturer is not responsible for damage due to improper use,
operation or installation.
This warranty needs to be received by American UV within 25 days of initial operation. The
warranty applies to replacing defective equipment.
AUV shall have no liability hereunder, either direct or contingent, for any consequential
damages. AUV recommends that you use pre-filters, flow-control devices and inspect the
lamp to insure that it is functioning.
GLASCO UV glascouv.cm 201 934-3348 Fax [phone] [e-mail]
126 Christie Avenue, Mahwah NJ 07430