Maintenance; Quartz Sleeve Cleaning; Winterizing - Pentair SMART UV EU18-U Installation And User Manual

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MAINTENANCE

Quartz Sleeve Cleaning

It is recommended that the quartz sleeve be visually
inspected for cleaning once every six months of
operation. Even the slightest layer of material (slim/
dirt) coating the outside of the quartz sleeve can
have a substantial effect on UV-C light transmittance
through the glass and into the water.
Cleaning frequency is also dependent on how well
water is being filtered before reaching the SMART
UV Systems UV Sterilizer. Water that contains solid
®
waste will deposit greater amounts of material onto
the quartz sleeve and will increase the frequency of
necessary cleaning.
To Clean the Quartz Sleeve (for above water-level
installations only):
1. Disconnect power to the UV sterilizer and pool
pump at the circuit breaker.
2. Relieve any residual pressure that may remain in
the system.
3. Unthread the Black Retaining Nut and gently
remove the Quartz Sleeve Assembly and lamp
from the UV vessel.
4. Inspect the Quartz Sleeve and clean as needed
with a soft, clean cloth.
5. If calcium deposits are present use vinegar or
a mixture of water and muriatic acid to dissolve
the deposits. If using muriatic acid a ratio of four
parts water to one part acid should suffice. Always
introduce acid to the water and never introduce
the water to the acid.
Muriatic acid is corrosive and can lead
to inflammation or burns to body tissue.
ALWAYS wear rubber gloves, safety
glasses and an N-95 dust mask when
handling acid to prevent serious bodily
injury.
To prevent degradation of the acid by UV
light, store muriatic acid in an opaque
container and away from direct sunlight.
6. Remove ALL vinegar or acid from the quartz sleeve
assembly before reassembling.
SMART UV® UV DISINFECTION STERILIZER Installation and User's Guide

Winterizing

Using the SMART UV Disinfection Sterilizer in
extremely cold temperatures can cause damage to
the unit, especially if the water is allowed to freeze
inside the equipment. Please note that damage to
the product due to freezing is not covered under
warranty.
Pentair recommends shutting the UV system down
when the temperature consistently falls below 40°F
(4°C).
1. Drain all water from the UV system.
2. Disassemble the entire unit and carefully clean
both the outside and interior of the UV body and
components.
3. Once clean and dry, store the UV vessel and power
supply in a dry place for the winter.
4. Return the UV system to service when temperatures
consistently return to 40°F (4°C) or greater.
NOTE: Be sure to replace the quartz sleeve gasket and
perform a leak test prior to operating the equipment.