ATS DWS-15, Installation & Operation Manual

9

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.