ATS DWS Series Manuale utente

U.V. Disinfection

INSTALLATION & OPERATION MANUAL

This manual covers installation, operation and maintenance

requirements for DWS/SE/DWSW U.V. Disinfection Units.

Models DWS-7, 15, and SE-7, 15, and DWSW-8, 15

(SE Units: During normal operation, the Green LED will flash every 5 - 10 seconds.)

It is important that those responsible for the installation of this

equipment, as well as the owner / operator, read this manual

and carefully follow the instructions and guidelines.

Revised: 9/14

DWS/SE/DWSW

AQUA TREATMENT SERVICE, INC.

194 HEMPT ROAD

MECHANICSBURG, PA 17050

ph: (717) 697 - 4998

fax: (717) 697 - 5035

Series

EPA PRODUCT REGISTRATION #

062333-PA-001

SAFETY INSTRUCTIONS

WARNING - to guard against injury, basic safety precautions should be observed,

including the following:

1. READ AND FOLLOW ALL SAFETY INSTRUCTIONS.

2. DANGER - To avoid possible electric shock, special care should be taken since water is present

near electrical equipment. Unless a situation is encountered that is explicitly addressed by the

provided maintenance and troubleshooting sections, do not attempt repairs yourself, refer to an

authorized service facility.

3. Carefully examine the disinfection system after installation. It should not be plugged in if there

is water on parts not intended to be wet.

4. Do not operate the disinfection system if it has a damaged power cord or plug, if it is malfunc-

tioning or if it is dropped or damaged in any manner.

5. Always disconnect water flow and unplug the disinfection system before performing cleaning

or maintenance activities. Never yank the power cord to remove it from an outlet. Grasp the

plug and pull to disconnect.

6. Do not use this disinfection system for other than the intended use (potable water applications.)

The use of attachments not approved, recommended or sold by the manufacturer / distributor

may cause an unsafe condition.

7. Intended for indoor use. Do not install this disinfection system where it will be exposed to the

weather. Do not store this disinfection system where it will be exposed to temperatures below

freezing unless all the water has been drained from it and the water supply has been discon-

nected.

8. Read and observe all the important notices and warnings on the water disinfection system.

9. If an extension cord is necessary, a cord with a proper rating should be used. A cord rated for

less Amperes or Watts than the disinfection system rating may over heat. Care should be taken

to arrange the cord so that it will not be tripped over or accidentally pulled from the outlet.

1. SAVE THESE INSTRUCTIONS.

WARNING: The light given off by this unit can cause serious burns to unprotected eyes and skin.

Never look directly at a lit UV lamp. When performing any work on the UV Disinfection System,

always unplug the unit first. Never operate the UV system while the lamp is outside of the UV

chamber.

WARNING: The UV lamp inside of the disinfection system is rated at an effective life of approx-

imately 9,000 hours. To ensure continuous water treatment, replace the UV lamp

annually with the appropriate Aqua Treatment Services UV lamp. Failure to comply may

present a fire hazard.

FUNCTION:

The function of this ultraviolet disinfection unit is to provide in excess of 99% reduction of all water

borne pathogenic (disease causing) bacteria.

Model DWS/SE/DWSW series have a number code designation correspondent to the maximum gpm

(gallons per minute) flow rate of the unit. I.E.- DWS-7 has a maximum flow capacity of 7 gpm.

Applications:

Ultraviolet Germicidal Disinfection

A.T.S. Ultraviolet Disinfection Units are designed to destroy micro-organisms in water supplies. The

Ultraviolet lamp peak radiation of 254 nanometer wavelength (nm) destroys or inactivates the D.N.A.

(deoxyribonucleic acid) which absorbs the Ultraviolet radiation. A.T.S. Germicidal

Disinfection units meet minimum dosages of 30,000 microwatt second per square centimeter.

MAXIMUM CONCENTRATION LEVELS BEFORE ULTRAVIOLET:

Turbidity.................................5 NTU Hardness..........................................7 gpg

Color.......................................None Iron...................................................0.3 ppm

Manganese........................0.05 ppm pH....................................................6.5 - 9.5ppm

Important Note - Pre-filtration equipment may be required if these parameters cannot be maintained.

Flow rate must not exceed rated capacity of the unit.

DESCRIPTION OF EQUIPMENT:

The DWS/SE/DWSW series are of unique design with an ultraviolet germicidal lamp housed within a

single quartz sleeve surrounded by a stainless steel pressure chamber. The chamber is fabricated out of

304 Stainless Steel. A removable stainless steel cover exposes electrical components for servicing,

when required.

The DWS/SE series come with an ultraviolet lamp designed with one pin at each end. This type of lamp

has a socket connected to each pin. The DWSW-8 model comes with a bi-pin connection at each end.

A stainless steel threaded nipple with a brass compression nut and O-Ring is located at each end of the

disinfection chamber.

The quartz sleeve is intended to be placed through the disinfection chamber and will slightly protrude

from each threaded nipple end. The ultraviolet lamp is placed within this quartz sleeve. The U.V. light

shines through this specially designed hard quartz sleeve for maximum disinfection efficiency to meet

the requirements for bacteria reduction in potable water.

The inlet/outlet are located on one side of the chamber and may be interchanged as to designation depen-

dent upon installation. A Site Port is provided for safe and easy view of operation.

GENERAL CONSIDERATIONS FOR ALL DISINFECTION UNITS:

1. When installing the equipment, it is necessary that the unit be isolated from vibration,

heavy equipment, and poorly connected piping.

2. Incoming water temperature to the unit should not exceed 35°minimum to110°maximum

degrees Fahrenheit.

3. The operating pressure should not exceed 100 psi.

4. Before putting the unit into final operation follow sanitation procedures as outlined in this

manual for proper disinfection. Sanitizing all discharge piping and fittings with household

bleach from disinfection unit to point of use removes existing contaminants and gives

the unit a “clean start.” Be sure to rinse with U.V. treated water.

5. A proper flow control must be used to insure only the designated flow through the unit.

GENERAL PRECAUTIONS TO BE FOLLOWED AT ALL TIMES:

1. Always disconnect electrical power to any U.V. unit before servicing.

2. Under no circumstances should personnel look at a U.V. lamp in operation

(EXCEPT through an external Site Port lens located on the outside of the unit).

3. U.V. disinfection units must always be properly grounded.

INSTALLATION:

The DWS/SE/DWSW series are always placed after the pressure tank and any other type of treatment

devices (i.e. softeners, filters).

These units are normally installed in a vertical position in an enclosed area with good ventilation. Allow

clearance of at least the unit’s length at one end for quartz sleeve and bulb replacement. Four (4) anchor

bolt holes are provided for proper wall support. Use wall plugs with screws for sufficient support

(not included).

If your piping system is subject to impulse pressure resulting in a “water hammer” condition, a surge

tank or other means must be provided to remove this condition; otherwise, this extreme shock pressure

condition may rupture or fracture the quartz sleeve.

Make all plumbing connections to allow for ease of service. Be sure to follow all local plumbing codes

and U.V. restriction requirements where specified by local authorities.

On models requiring a U.V. monitor or light detector, the U.V. should be mounted in a vertical position.

STEP BY STEP INSTALLATION:

1. Turn off the water before cutting into the water line.

2. Assess the installation (i.e. type of pipe, size of lines, etc.) and obtain necessary plumbing

fittings for installation. Inlets and outlets on 8 gpm units are ¾" MNPT. Use Teflon tape

on all threaded connections and avoid over tightening.

Note: The flow control is a press in type. Each unit has a ¾" MNPT inlet/outlet machined so

the press in flow control can be easily inserted into whichever port you select for the

inlet. Make sure the rubber part of the flow control is facing outward from the port

selected. Simply hand press or slightly tap in the flow control until it sits on the

inside ledge of the machined port.

3. Using the mounting box provided, secure unit to wall, or other surface. Make sure to

allow enough room to install, replace, and clean the quartz sleeve and bulb. Installing a

water shut-off valve before and after the unit is recommended to make servicing easy.

4. After mounting, install quartz sleeve, O-Ring, and bulb per instructions. Turn on the water

slowly, check for leaks, and repair as needed prior to full service operation.

5. After the unit is full of water, plug it into a grounded 110V outlet. Observe operation

through the safety Site Port. The lamp will show a bright blue glow. If any problems

are noted, consult trouble shooting guide.

GENERAL INSTALLATION DIAGRAM

ATS-280CB

RESET BUTTON

(MOUNTED UNDER TOP PLATE)

OUTLET

MAINS

BALLAST

LAMP

OPERATING INSTRUCTIONS

Your ATS UV System is equipped with the ATS-280CB UV Lamp Detector and Timer circuit board

which is designed to provide a continuous monitoring system of the UV lamp operational status. This

solid state electronic circuit board provides the latest in UV lamp monitoring technology.

UV LAMP / CONTROL BOX START UP PROCEDURE - (4 Step Process)

1. Make sure the UV lamp is inserted per instructions into the quartz sleeve and UV chamber. Then

plug the UV lamp into the lamp connector.

2. Plug the electrical control box into a 120volt wall plug outlet.

3. Upon start up the UV lamp Detector and Timer circuit board will perform a self diagnostic test.

When power is applied the UV lamp will go on and a circuit board output check is performed as follows:

• Quick Beep

• Green LED on, then off

• Red LED on, then off

• Solenoid / Relay connection on, then off

• Pause with beeps

• Green LED on = System Check OK, UV System is operational.

4. Set the 1 Year Lamp Timer – WITH NEW UV LAMP –

Make sure the control box is plugged into the wall outlet and the UV lamp is on. Press and hold the reset

push button. A tone that descends in frequency once per second will be heard. Hold the reset button

down for approximately 5-8 seconds until you hear a continuous tone. At this point release the button.

The 1 year lamp timer has just been reset.

UV lamp Detector and Timer circuit board Lamp Operation and Alarm features:

• UV System OK – Green LED will flash every 5 - 10 seconds.

• 30 Days remaining on Lamp Life – Flashing Yellow LED with an intermittent audible tone.

• End of Lamp Life- Flashing Red LED with an intermittent audible tone.

• Lamp Out- Continuous Red LED with a continuous audible tone.

• If your UV System has a 120Vac Normally Closed Solenoid Valve or Remote Alarm connected to

the UV Unit plug-in connection, this will activate at End of Lamp Life or Lamp Out alarm condi-

tions.

To Silence the Audible Alarm with Snooze Button:

1. 30 Days remaining on Lamp Life Alarm - Push reset button – Silences the audible tone for two

weeks while the Yellow Led continues to Flash. (You can Silence audible alarm 2 times Max.) You

have up to 30 days to replace the lamp. Service Unit - Replace the UV Lamp within 30 Days.

2. End of Lamp Life Alarm - Push reset button- Silences the audible tone for one week while the RED

LED continues to flash. (You can Silence audible alarm 4 times Max.)

Service Unit Immediately - Replace the UV Lamp.

3. Lamp Out Alarm- Push reset button- Silences the audible tone for one week while the continuous

Red LED stays on. (You can Silence audible alarm 1 time only.)

Service Unit Immediately - Replace the UV Lamp.

To Find out how many Months are left on the Lamp Timer - Push the reset button for 1-2 seconds

then release. After an initial sound there will be a pause followed by beeping and a flashing LED. The

number of beeps corresponds to the number of months left on the lamp life.

To Reset 1 Year Lamp Timer – WHEN REPLACING THE UV LAMP. Unplug the control box from

the wall outlet. Unplug the UV lamp from the Lamp connector. Replace with a new UV Lamp. Make

sure the control box is plugged into the wall outlet and the UV lamp is on. Press and hold the reset push

button. A tone that descends in frequency once per second will be heard. Hold the reset button down for

approximately 5-8 seconds until you hear a continuous tone. At this point release the button. The 1 year

timer has just been reset.

LAMP STATUS INDICATOR / UV LAMP ADVISOR:

LED

COLOR

AUDIBLE

ALARM

UNIT

STATUS

GREEN NONE OK

FLASHING

YELLOW

INTERMITTENT

TONE

REPLACE LAMP WITHIN

30 DAYS.

FLASHING

RED

INTERMITTENT

TONE

LAMP HAS EXCEEDED 1 YEAR

OF OPERATION, REPLACE

LAMPS & RESET.

CONTINUOUS

RED

CONTINUOUS

TONE

UV LAMP IS NOT LIT.

NOTE: During normal operation, the Green LED will flash every 5 - 10 seconds.

Please contact your local dealer for replacement UV lamps.

Refer servicing to qualified service personnel.

QUARTZ SLEEVE:

Installation of the Quartz Sleeve:

Always handle quartz sleeves carefully to prevent breaking or chipping. The quartz sleeves are to be

clean and free of fingerprints before installing.

Remove the compression nut. Install the quartz sleeve through the stainless steel threaded nipple

allowing an equal amount to extend beyond each nipple. Install the O-Ring down the top of the

nipple. Avoid riding the O-Ring on any threaded part of the nipple. Hand-tighten each compression

nut to form a compression seal around the quartz sleeve. Avoid overtightening the nuts, which may

cause a fracture on the end of the quartz sleeve. Under normal operation conditions, hand-tightening

will provide a 100 psi seal. Do not use any devices to tighten end nuts. Repeat this procedure at the

opposite end of the chamber.

After you have tightened the compression nut and all other plumbing connections, open the outlet valve.

Slowly open the inlet valve and flush out all remaining air. Then close the outlet valve and

slowly open the inlet valve fully. Check the unit for leaks. If you find a leak at the compression nut,

tighten the nut further. If the leak continues, drain the unit and inspect the quartz O-Ring and quartz

sleeve for proper seal. Once you complete checking the unit, reassemble O-Ring and tighten gland nut.

Repressurize the unit and check again.

REQUIREMENTS FOR CLEANING THE QUARTZ SLEEVE:

As water passes through the U.V., minerals, debris and other matter in the water may deposit onto the

quartz sleeve. After sufficient film has formed on the quartz sleeve, the ability of the ultraviolet

germicidal rays to pass though the quartz sleeve and into the water may be impaired. Therefore, it is

necessary to determine a cleaning schedule for the quartz sleeve. The frequency will depend on the

specific type of water conditions. If the water has been processed through deionization, reverse

osmosis, or is distilled, cleaning may be required only once per year. If untreated water is used, the

cleaning frequency will vary. A minimum of once yearly is standard recommendation for cleaning and

lamp replacement. Contact your local dealer for scheduling this service. Your specific situation will

vary the frequency time according to the water quality of the home or facility application.

QUARTZ SLEEVE CLEANING PROCEDURES:

To clean the quartz sleeve, turn off the water flow to the disinfection unit, turn power off, and disconnect

the electrical service to the lamp pins. Carefully remove the U.V. lamp. Loosen the compression nuts

with O-Rings and remove the quartz sleeve while draining the water from the chamber. The quartz

sleeve may then be washed with a mild soap and hot water solution and rinsed clean with hot water.

Should this be insufficient to clean the quartz sleeve, a mild acid may be used (i.e. vinegar). Be certain

to follow all recommended safety and handling procedures on the acid container. It is important to

handle the quartz sleeve with care to prevent breakage. Make certain that all finger prints are wiped

clean before reinstalling (see installation of the quartz sleeve). Replace O-Rings [ATS8-544(1)] every

time a quartz sleeve is cleaned or replaced.

U.V. LAMPS:

INSTALLATION OF THE ULTRAVIOLET LAMPS:

**DO NOT PUT POWER ON AT THIS TIME!**

CAUTION: Never look directly at a operating U.V. lamp operate a U.V. lamp outside the

disinfection chamber.

Make sure unit is unplugged when installing or servicing ultraviolet lamp. Remove any paper tabs on

the U.V. lamp and avoid allowing fingerprints and other debris to deposit. Carefully place the bulb

inside the quartz sleeve leaving enough space to connect the socket connector to the lamp pins. Insert

the protective polyurethane endcaps into the quartz open ends to secure the lamp(s) in place or reinstall

brass dust covers.

ULTRAVIOLET LAMP MAINTENANCE REQUIREMENTS:

The U.V. lamp is rated for 9,000 hours of continuous use. After this period of time, the U.V. lamp has

undergone a photochemical change. While the lamp will not normally be burned out, the lamp quartz

may no longer emit the 254-nm shortwave U.V. to effectively kill bacteria. Failure to replace the U.V.

lamps every 9,000 hours may cause bacteriological breakthrough. Should the use of the disinfection

unit be intermittent, in no case should the U.V. lamp be used for more than 24 months regardless of the

number of hours of operation due to normal shelf life degradation of the U.V. bulb. Changing the quartz

sleeve should be done at the same time U.V. lamp replacement is scheduled.

It is recommended that your water supply be tested periodically (yearly) through your local health

department or approved certified laboratory.

ELECTRICAL:

The DWS/SE/DWSW series are furnished with 6' line cord that will plug into a 110V outlet. Electrical

receptacles must be properly grounded for safe operation. Improper grounding will void any warranty.

When possible use a separate breaker to minimize voltage fluctuations and avoid accidental shut off.

After unit is installed and water is turned on, plug the unit into 110V wall receptacle. View lamp

operation through safety Site Port lens. NOTE: Avoid exposing your eyes to U.V. light.

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