UltraViolet Devices MP22A - Manual (Page 10)

10
1. Disconnect power to water purifier.
2. Shut off water supply to water purifier via inlet and outlet shut off valves. Drain chamber by removing
drain plug. Once the chamber is completely drained, remove any old sealing tape from the threads of the drain
plug, rewrap with 1/2" wide Teflon
®
thread sealing tape, reinstall and tighten the drain plug.
3. Follow the steps in “ Lamp Installation or Replacement ” to remove lamp.
CAUTION:
Lamp and quartz sleeve are easily damaged. Exercise care when removing or replacing lamp.
4. Unscrew static gland nuts from each end of the chamber. Avoid striking quartz sleeve with static gland nut.
5. Remove Teflon
®
washer and o-ring from both ends of quartz sleeve. Teflon
®
washer will sometimes remain with
in the static gland nut. If so, remove Teflon
®
washer from static gland nut before proceeding.
6. Carefully remove quartz sleeve from chamber. NOTE: It is advisable to support the quartz sleeve on the opposite
end with your finger so that it does not drop to the bottom of the chamber as it slides into the chamber.
7. Once the quartz sleeve is removed, clean with alcohol or a mild, non-abrasive detergent. Stubborn stains usually
can be removed with a dilute hydrochloric acid. NOTE: Follow all manufacturer’s instructions and precautions
when handling chemicals.
8. 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.
9. 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.
10. Slowly restore water supply to water purifier and check for leaks.
11. If no leaks occur, reinstall lamp, following the steps in “
Lamp Installation or Replacement ” section.
!
Q
UARTZ
S
LEEVE
C
LEANING OR
R
EPLACEMENT
Figure 4 - Quartz Sleeve Cleaning or Replacement
Step 4 - Remove Gland Nuts Step 6 - Remove Quartz Sleeve Step 5 - Remove Washer & O-Ring