5
MAINTENANCE
The basic unit is designed to operate with minimal maintenance requirements providing the
minimum water characteristics are met as are outlined in the section “Application Guidelines”.
However there are two regular maintenance requirements common to all UV systems: quartz
cleaning and lamp replacement.
Cleaning
Unless using deinozed or RO permeate water, minerals in the water will eventually coat the quartz
sleeve (which protects the lamp). This coating must be cleaned off periodically because it reduces
the amount of UV light reaching the water, thereby reducing disinfection performance.
Periodically, check the sleeve and clean it if you can see a mineral coating starting to form. If sleeve
requires cleaning, refer to below instructions but re-install the original lamp.
Quartz Sleeve Replacement/Cleaning
1.
If the lamp is in the system, remove the lamp and carefully set it aside as described in the lamp
installation/replacement section.
2.
Shut off the upstream water supply that feeds water into the reactor chamber. Depressurize and
drain the system by disconnecting the inlet/outlet from the reactor chamber.
3.
Unscrew and remove the QG sealing nut from the top of the reactor (Figure 1). Make sure to
remove the QG sealing O-ring and keep it carefully (Figure 2).
4.
Carefully slide the sleeve out of chamber (Figure 3). In case it is initially tight, gently try rotating
the QG while also pulling it out. Also make sure that the sleeve is
not at an angle
as otherwise
pressure will be applied on the sides of the sleeve and against the reactor chamber causing the
sleeve to fracture.
5.
Clean the quartz sleeve, or replace them with a new one. To clean the sleeve, use a mild acid
solution such as 10% Citric Acid or household cleaners such as vinegar.
6.
Reinstall the quartz sleeve in reverse order.
Carefully
slide the quartz sleeve into the reactor
through the QG socket until it is locked into place in the internal QG holder. Ensure that the
sleeve is inserted straight and
not at an angle
as doing so will put pressure on the wall of the
sleeve and can cause it to crack. Install the quartz sealing o-ring [7] onto the sleeve until it rests
against the QG socket.
7.
Reinstall the QG socket compression nuts by turning clockwise. This nut should be hand
tightened only.
8.
Slowly turn on the water and pressurize the reactor to verify that there are no leaks.
9.
Reinstall the lamp as described in the lamp installation/replacement section and reconnect all
the electrical connections to ensure that the system is operating properly.
Figure 1
Figure 2
Figure 3
