Shield 1500 Owner’s Manual
DOCXXX Rev 1
©Puralytics 2017
Page 24
Chapter 7: 20-inch NanoMesh Cartridge Maintenance
Introduction
The 20-inch NanoMesh Cartridge is designed to operate with a minimal amount of
maintenance, providing the water quality meets input requirements (see
Facility
Requirements
section).
Ordinary maintenance consists of;
• 20-inch NaonoMesh Cartridge replacement – recommended after 10,000 hours
of operation (approximately 60 weeks of continuous service) or when more than
the top third of the cartridge becomes discolored—whichever happens first.
• Cleaning of the internal reflective surfaces with a clean dry cloth after canister
replacement.
Always disconnect the water supply and completely drain the sump if it will be subjected
to temperatures below the freezing point of water.
20-inch NanoMesh Cartridge
Replacement
1.
Disconnect power to Shield 1500
and
disconnect both the water input and output
connections.
2. Depress the red pressure-relief button on the top
of the unit to relieve the pressure inside the
canister. Depress again as needed through Step
5.
3. Open the access door.
4. Pull the LED electrical lead socket
connector straight down off the bottom of
the sump.
5. Using the sump spanner wrench, twist off (moving wrench handle from right to left)
the sump (for best results hold the wrench near the top of the sump and brace
against the twisting by holding the inlet connection. Some water will spill in the
process of removing the sump.
NOTE: Care should be taken in order to
minimize water spills.
Set the sump on a flat surface. Be careful to not allow it to tip
over. Dry up water from inside the Shield enclosure.
6. Remove the 20-inch NanoMesh Cartridge by pulling it straight up out of the sump.
Figure 17. Depress red pressure-relief button
