Hydrotech PURA ABuv 6_8_12 - Manual (Page 3)

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Safety Instructions
WARNING:
To guard against injury, basic safety precautions should be observed, including the following:
1. Read and follow all safety instructions.
2. CAUTION - Always disconnect power before servicing.
3. DANGER - To avoid possible electric shock, special care should be taken since water is present near electrical equip-
ment. Unless a situation is encountered that is explicitly addressed by the provided maintenance and troubleshooting
sections, do not attempt repairs by yourself, refer to an authorized service facility.
4. Carefully examine the disinfection system after installation. It should not be plugged in if there is water on parts not
intended to be wet such as, the ballast or lamp connector.
5. Do not operate the disinfection system if it has a damaged cord or plug, if it is malfunctioning or if it has been dropped
or damaged in any manner.
6. Always disconnect water flow and unplug the disinfection system before performing any cleaning or maintenance
activities. Never yank the cord to remove from an outlet; grasp the wall plug and pull to disconnect.
7. Do not use this disinfection system for other than intended use (potable water applications). The use of attachments not
recommended or sold by the manufacturer/distributor may cause an unsafe condition.
8. Intended for indoor use only. Do not install this disinfection system where it will be exposed to the weather or to tempera-
tures below freezing. Do not store this disinfection system where it will be exposed to the weather or to temperatures
below freezing unless all water has been drained from it and the water supply has been disconnected.
9. Read and observe all the important notices and warnings on the water disinfection system.
10. 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 overheat. Care should be taken to arrange the cord so that it will not be tripped
over or pulled. Circuit breaker must not exceed power cord current rating (ie - 15A for North American NEMA 5-15P).
11. SAVE THESE INSTRUCTIONS
WARNING:
The UV light given off by this unit can cause serious burns to unprotected eyes and skin. Never look directly at an illuminated
UV lamp. When performing any work on the UV disinfection system always unplug the unit first. Never operate the UV system
while the UV lamp is outside of the UV chamber.
Conditions For Use
IMPORTANT: Water quality is extremely important for the optimum performance of your UV system. The following levels are
recommended for installation:
If your water chemistry contains levels in excess of those mentioned above, proper pre-treatment is recommended to cor-
rect these water problems 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 operate as intended.
Note: The UV lamp inside the disinfection system is rated at an effective life of approximately 9000 hours. To ensure
continuous protection, replace the UV lamp annually.
Iron (Fe) < 0.3 ppm (0.3 mg/L)
Hardness* < 7 gpg (120 mg/L)
Turbidity < 1.0 NTU
Manganese (Mn) < 0.05 ppm (0.05 mg/L)
Tannins < 0.1 ppm (0,1 mg/L)
UV Transmittance > 75%**
* Where total hardness is less than 7 gpg, the UV unit should operate efficiently provided the quartz
sleeve is cleaned periodically. If total hardness exceeds 7 gpg, the water should be softened.
**Call customer service for recommendations on applications where UVT < 75%.