Shield 1500 Owner’s Manual
DOCXXX Rev 1
©Puralytics 2017
Page 23
QUARTZ SLEEVE CLEANING OR REPLACEMENT
The Shield 1500 has been designed such that the UVC Lamp can be serviced without
removing the sheet metal cover of the Shield 1500.
1.
Disconnect power to Shield 1500
and disconnect
both the water input and output connections.
2. Follow the steps in “
UVC LAMP INSTALLATION OR
REPLACEMENT
” to remove lamp.
CAUTION: Lamp
and quartz sleeve are easily damaged. Exercise
care when handling.
3. Unscrew static gland nuts from each end of the
chamber as shown in the top image of Figure 16. Avoid
striking quartz sleeve with static gland nut.
4. Remove Teflon® washer and O-ring from both ends of
quartz sleeve as shown in the middle image of Figure
16. Teflon® washer will sometimes remain within the
static gland nut. If so, remove Teflon® washer from
static gland nut before proceeding.
5. Carefully remove quartz sleeve from chamber as
shown in the bottom image of Figure 16.
NOTE:
It is
advisable to support the quartz sleeve on the backside
with your finger so that it does not drop to the bottom of
the chamber as it slides into the chamber.
6. Once the quartz sleeve is removed, clean with alcohol
or a detergent. Stubborn stains usually can be removed
with a dilute hydrochloric acid.
NOTE:
Follow all
manufacturer's instructions and precautions when
handling chemicals.
7. Reassemble in reverse order. Make sure the quartz
sleeve protrudes an equal distance past each threaded
nipple. Be sure O-rings are placed on quartz sleeve
before Teflon® washer.
8. Tighten static gland nuts firmly by hand only,
DO NOT USE HAND TOOLS
. Tightening with
hand tools is likely to cause quartz sleeve to break.
9. Reinstall lamp, following the steps in “
UVC LAMP INSTALLATION OR REPLACEMENT
”
section.
WARNING: Germicidal ultraviolet rays are harmful to eyes and skin. Do not restore
power to the Shield 1500 until the UVC lamp and easy-off end caps have been properly
reinstalled.
Figure 16. Replacing quartz sleeve
