BWT UV20 User Manual
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BWT UV20 User Manual

Multistage uv filter system
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UV20 MULTISTAGE UV FILTER SYSTEM
USER MANUAL
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Summary of Contents for BWT UV20

  • Page 1 UV20 MULTISTAGE UV FILTER SYSTEM USER MANUAL...

  • Page 2: Table Of Contents

    INDEX INTRODUCTION Pg. 3 PREPARING YOUR SYSTEM Pg. 3 POSITIONING YOUR SYSTEM Pg. 4 ELECTRICAL POWER SURGE PROTECTION Pg. 4 INLET WATER QUALITY Pg. 4 INSTALLATION Pg. 4-7 LAMP BALLAST OPERATION Pg. 7-9 MAINTENANCE Pg. 10 CARTRIDGE REPLACEMENT PROCEDURE Pg. 10 LAMP REPLACEMENT PROCEDURE Pg.

  • Page 3: Introduction

    INTRODUCTION The BWT UV20 is designed to reduce turbidity and to inactivate harmful bacteria and viruses in water supplies. Using UV-C rays, a purification process that’s eco-friendly and chemical-free, DNA and RNA of microrganisms are damaged, resulting in an effective germicidal action. A double-stage pre-filtration unit ensures that particulate matter does not shield micro-organisms from the UV-C light.

  • Page 4: Positioning Your System

    An electrical power surge or spike can travel through the supply lines and cause serious damage to your electrical equipment. The BWT UV20 has a fuse to protect the circuit. The fuse is not a lightning arrestor and may not protect the product if lightning or a very powerful surge hits the unit.

  • Page 5: Installation

    Note: The outlet is always on the UV side of the system. 6. Turn off the water mains. 7. Plumb inlet and outlet pipework to the BWT UV20 unit. The inlet is 1” BSP female and the outlet is 1” BSP male.
  • Page 6 Drain system of water to install lamp and or sleeve. Use gloves to handle the quartz (glass) and lamp surface as marks or fingerprints may interfere with UV transmission. If lamp is soiled, please clean lamp with an alcohol based cleaner. 9.

  • Page 7: Lamp Ballast Operation

    11. Turn-on the water mains, paying attention to completely remove the air left inside the housing using the vent valves / Slowly turn-on a water supply (tap) downstream of the BWT UV20 / Open the vent- valve of the head, wait for air purge from the vent-valve, then screw and tighten the vent-valve. Flush the unit for at least 5 minutes.
  • Page 8 01.0 Display Alarms Alarm 1-AL1 indicates the end of lamp life, the count down display will show 000 days and a buzzer alarm will sound To stop the alarm buzzer. Press and hold the > 5 seconds, buzzer will stop. The buzzer will be stopped for 1 week - will be repeated for 4 more weeks.
  • Page 9 Filter Cartridges to suit UV20 Multistage UV Filter System Performance will vary based on local water conditions. Variables in drinking water can affect the life of the filter cartridge. Please consider the filter life and be aware that a drop in pressure at the outlet or a change in the taste of water can indicate it’s time to change the filter.

  • Page 10: Maintenance

    Maintenance The BWT UV20 series has been designed and manufactured with simple and functional features which make maintenance procedures and periodical servicing simple. To maintain a high quality of disinfected water, cartridges, lamp and quartz-sleeve should be regularly checked/replaced (dependent on water quality and usage).

  • Page 11: Lamp Replacement Procedure

    Important Change the o-ring with a new one and carefully lubricate before tightening the bowl to the head. Make sure that there are no water leaks from the product and be careful not to overtighten the filter bowl. Continue checking there is no water leakage for 48 hours following the installation and start-up. In case of leak, turn off power and water supply, open the housing, remove the o-ring from the bowl, replace with a new o-ring and apply lubricant, then re-tighten the bowl to head and repeat as above.

  • Page 12: Quartz Sleeve Maintenance/Replacement Procedure

    Quartz Sleeve Maintenance/Replacement Procedure Minerals dissoved in water may form a coating on the quartz sleeve. The quartz sleeve must be regularly checked and cleaned to remove this coating in order to maintain correct disinfection performance. 1. Disconnect the power supply and turn off the water. 2.

  • Page 13: Uv System Specifications

    BWT UV20 Specifications GENERAL INFORMATION Max flow rate (95% - 1 cm UV transmittance) 54 l/m (40 mJ/cm ) - 70 l/m (30 mJ/cm ) - 131 l/m (16 mJ/cm UV-C dose 40 mJ/cm - 30 mJ/cm - 16 mJ/cm Water temperature range 4°- 40°...
  • Page 14 Please consider the filter life and be aware that a drop in pressure of the outlet or a change in the taste of water can indicate it’s time to change the filter. Use only original BWT replacement cartridges and spare parts.

  • Page 15: Declaration Of Conformity & Warranty

    BWT is absolved of any and all liability for any use of the product. No liability is accepted where pressure, temperature or other specifications are exceeded.

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