Introduction of HQUA UV Water Sterilizer HQUA-TWS-12

The HQUA UV Water Sterilizer HQUA-TWS-12 is a powerful and effective solution for purifying water in your home or office. This advanced water sterilizer uses ultraviolet (UV) technology to eliminate up to 99.99% of harmful bacteria, viruses, and other microorganisms, providing you with clean and safe drinking water. The estimated price of the HQUA-TWS-12 is around $200 to $250, and it is now available for purchase.

Specifications

Operating Parameters	All models
Maximum operating pressure	125 PSI(862kPa)
Minimum operating pressure	4 PSI(27.5kPa)
Maximum ambientair temperature	122°F(50°C)
Minimum ambient air temperature	32°F (0°C)
Installation	Vertical

HQUA General Information

Accessories list & description

hqua_uv_water_sterilizer_hqua-tws-12-_accessories_list.png

Check the package according the list below. Make sure you get everything ready before installing. If something is lost or damaged, contact the manufacturer and seller or its service agent to get more help.

Stainless Steel Chamber (304, food grade). 20.5*3.5(520*90mm) inch Cylinder with 3/4” MNPT in/outlet.
Quartz Sleeve to protect the UV lamp and guarantee high transmittance. 2PCS 20*0.9(510*23mm) inch with one end. HQUA-TWS-12Q.
UV lamps with 4-pin one end. 2PCS 17.2*0.6 T5 (436*15mm) inch. HQUA-TWS-12L.
Four waterproof O-rings suitable for Quartz Sleeve.
Electronic ballast-power supply with standard U.S. 3-pin plug. HQUA-TWS-5595EB.

Requirement on water quality

Water quality is extremely important for the optimum performance of your UV system. The following levels are recommended for installation:

Water qualityand minerals	Level
Iron	< 0.3ppm (0.3 mg/L)
Hardness	< 7 gpg(120 mg/L)
Turbidity	< 1 NTU
Manganese	< 0.05 ppm (0.05mg/L)
Tannins	< 0.1ppm (0.1 mg/L)
UV Transmittance	> 75%

Notes

Where total hardness is less than 7g pg, the UV unit should be operated efficiently provided the quartz sleeve is cleaned periodically. If total hardness exceeds 7g pg, the water should be softened.
If your water chemistry contains levels in excess of those mentioned above, proper pre-treatment is recommended 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 be used as intended.

Layout of pipe system
We suggest that you build your UV water purification system as shown in the figure below. This design takes testing, maintenance, and water treatment sequences into account. Please take it as a reference:

hqua_uv_water_sterilizer_hqua-tws-12-_layout_of_pipe_system.png

Item	Description	Function
1	Sample Valve	Allow for sampling of raw water.
2	Main Water Shut-off Valve	Allow for maintenance of pre-treatment equipment.
3	Pre-treatment	Refer to the requirement above.
4	Bypass Shut-off Valve	Bypass line and valve are optional, intended to provide emergency water supply in case the UV system is unavailable.

UV System

Shut-off Valve

Allow for maintenance of UV system.

Sample Valve

Allow for sampling of water entering UV chamber;

necessary to confirm whether water treated has adequate quality.

UV chamber

Provide disinfection of the water. Vertical chamber installation is required .

Sample Valve

Allow for sampling of water immediately after UV treatment; necessary to confirm the proper operation of

UV system.

UV System

Shut-off Valve

Required to allow for maintenance of the UV system.

Electronic Ballast

Power supply of the UV lamp. The indicator identifies

the working situation of the unit.

Power Source

Provide power to the controller. For safety reasons the outlet must be protected by a Ground Fault Circuit

Interrupter (GFCI).

Notice: Please choose the metal connector for the in/outlet (plastic connector will degrade at the irradiation of the ultraviolet).

Installation of HQUA UV Water Sterilizer HQUA-TWS-12

Following the installation steps one by one and make sure you understand each step before moving on. Contact the manufacturer and seller or its service agent if you misunderstand any part in this section.

Prerequisites

Measure your water pipe system and make sure you have enough space for this UV unit. Ensure an adequate clearance around the chamber allow for removal of the lamp and quartz sleeve.

Mark the mounting position and drill holes on a flat wall or board. Put four anchor bolts into it.
Make sure you have turned off the main water supply. Release water pressure and drain it from your pipe system.
Pay attention to the labels in the installation procedures. Carefully operate. Hand tighten the cap only- quartz parts damage may result from over-tightening.
Do not connect the UV water sterilizer to electric supply before finishing the installation.
Use Teflon tape and pipe thread sealing compound if in need. Choose the metal connector for the in/outlet (plastic connector will degrade in the irradiation of the ultraviolet).

HQUA UV Water Sterilizer HQUA-TWS-12 Description

The HQUA-TWS-12 is a compact and easy-to-install water sterilizer that is suitable for use with well water, tap water, and other sources of drinking water. It features a high-output UV lamp that produces a UV-C light with a wavelength of 254nm, effectively destroying the DNA of microorganisms and preventing them from reproducing. The sterilizer has a flow rate of up to 12 gallons per minute, making it suitable for use in households and small businesses. It also has a built-in alarm system that alerts you when the UV lamp needs to be replaced, ensuring that your water remains properly sterilized at all times.

Maintenance

Always disconnect the power supply before performing any work on this unit. Wait for 15 minutes let the electronic ballast discharge completely.
Regularly inspect power indicators on the ballast: the green one means the system is working in a good condition. The red light blinks and beeps when the system fails. We suggest you check the UV lamp situation with the protection on your eyes and skin such as long sleeve clothing and sunglasses, make a double check.

Replace the UV lamp

Replacing an UV lamp is quite easy and takes a little while. One UV lamp’s lifetime is about 9000 hours, so it should be replaced annually to keep the enough disinfection for 12GPM water flow. Close all faucets and shut off water supply to make sure the remain water in the system is sterilized. Replace the UV lamp annually (or biennially for seasonal home use) to ensure maximum disinfection.

Dismantle the protective cover, remove the UV lamp from the top of the chamber. Disconnect the used UV lamp from the ballast. Replace it with a new one and connect the terminal of the ballast's output.
Insert the whole UV lamp into the middle hole and cover the protective cap on it.

Debugging
Connect the power supply first, and check the indicator to confirm the HQUA-TWS-12 is working properly. Wait for 5-10 minutes to restart the water supply.

Clean & replace the quartz sleeve

The coating on the quartz sleeve will grow slowly from the mineral in the water. It must be removed since it block the UV irradiation, lower down the performance of the unit. If the sleeve couldn’t be cleaned, it must be replaced

Unscrew the caps of the both ends.
Hold the bottom of the quartz sleeve. Take out the O-ring on the top side.
Take off the quartz sleeve from the chamber carefully.
Clean the quartz sleeve with a cloth soaked in CLR, vinegar or other mild acid and then rinse with water.

Note: Replace the tube if it cannot be cleaned completely, scratched or cracked.
Insert the quartz sleeve into the chamber and finish the rest steps by referring to Section 2.5.

Always shut off water flow and release water pressure before servicing.
Drain all lines around the system, refer to Figure 2.
Place a small pail under the unit in case of any spills.
Remove the UV lamp;

Troubleshooting of HQUA-TWS-12

Problem	Possible Cause	Solution
Indicator shows red and beeps. Eliminate the reasons One by one following the Lead.	GFC Iand/or breaker tripped.	Reset GFCI and/or breaker.
	Connection problem.	Power off & wait for 15 minutes, adjust the connection between UV lamp and ballast. Then try it again.
	Ballast damaged.	Change with your spare UV bulb to check and confirm. Replace ballast and use a TVSS.
	UV lamp damaged or died.	Replace it with a new one.
Indicator shows no red or green.	Indicator failure.	If the UV bulb is still working, it means the system is working in a good condition.
Leakage at inlet or outlet.	Threaded pipe fittings are leaking.	Clean threads, reseal with Teflon tape and retighten.
Leakage at other places.	Wrong cooperation, fitting position or O-ring damaged.
System is operating but water tests show bacterial contamination.	Equipment downstream of UV system is acting as a breeding ground for pathogens.	Ensure UV is the last piece of treatment equipment.
	Serious contamination.	Reduce the flow rate or increase sterilization equipment.

Warranty Coverage

Ten-Year Limited Warranty for HQUA UV Chamber HQUA warrants that the UV chamber of HQUA product is free from defects of material and workmanship for a period of ten (10) years from the date of purchase.

Pros & Cons

Pros

Effectively eliminates up to 99.99% of harmful microorganisms
Compact and easy to install
Suitable for use with a variety of water sources
Built-in alarm system for lamp replacement
Flow rate of up to 12 gallons per minute

Cons

May be more expensive than other water sterilization methods
Requires regular lamp replacement
Not suitable for use with highly turbid water
May not remove all chemical contaminants from water

Customer Reviews about HQUA UV Water Sterilizer HQUA-TWS-12

Customers who have used the HQUA UV Water Sterilizer HQUA-TWS-12 have reported that it is easy to install and use, and that it effectively eliminates bacteria and viruses from their water. Some common complaints include the high cost of replacement lamps and the fact that the sterilizer may not be effective in removing all chemical contaminants from water.

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