11
Quartz Sleeve Cleaning (three monthly):
If dirt is allowed to build up on the quartz sleeve it will impair the UV output. The
quartz sleeve should be removed after one month and inspected for deposits.
Clean with methylated spirits (5% hydrochloric acid if heavily fouled) and carefully
dry. Handle the sleeve with tissue to keep it clean. The sleeve should be cleaned
every three months or as required.
Sleeve removal (use care-fragile):
CAUTION: Handling lamp and quartz sleeve. Keep the
quartz components free of finger marks to avoid loss
of output through dirt or grease shadows - handle the
lamps by their ends where possible. Wipe lamp and
sleeve with clean cloth or tissue if needed. The orings
should be replaced annually or if damaged - do not
grease the orings.
1. Remove lamp as described
2. Remove drain port cap and empty water from chamber
3. Undo nut at one end of the chamber and remove oring, repeat with nut at
other end and remove oring, withdraw sleeve carefully
4. Inspect orings for damage, replace annually
NOTE: When withdrawing sleeve take care not to
let the end drop into the chamber as it could break
- a clean dowel inserted right through the sleeve to
support it is useful.
Reverse procedure when replacing sleeve.
When replacing quartz sleeve after cleaning, the sleeve should stick out about
1cm at each end. Place oring over closed nut end and fit closed nut, fastening it
hand tight. Hold the other end of the sleeve in position during the tightening with
the other hand, then fit open end oring and cap.
A tiny amount of silicon spray or CRC in the end of aluminum endcap threads will
aid easy tightening. Do not use excessive force when tightening nuts. Do not re-
use quartz sleeve or orings if damaged.
