Magnum Valve Cartridge - Pentair AUTOTROL MAGNUM 293 Installer Manual

Issue
Loss of water Fouled resin bed due to iron
pressure. accumulation.
Slots in riser pipe or laterals are filled
with resin fines.
Salt in water to The injector is too small for the
service after system size.
regeneration.
Brine draw time excessively long due
to low water pressure.
Restricted drain line.
Insufficient rinse volume.
Plugged injector and/or injector
screen.
10.3

Magnum valve cartridge

The following procedure provides sequential troubleshooting steps to isolate a suspect cartridge.
Info
The dynamic pressure applied to the valve must be greater than 172.4 kPa at all times
when performing the following tests.
If a cartridge needs to be removed, follow the removal procedure in section Cartridge
replacement [
#4 Inlet cartridge
#1 Drain cartridge
There are four symptoms that may require a cartridge to be removed and inspected or replaced.
Ref. MKT-IM-012 / D - 03.02.2022
Installer manual Autotrol Magnum 293 - 298 Logix 742-762 - Troubleshooting
Cause
→ Page 85].
Solution
• Clean Magnum control valve and
mineral bed with cleaner.
• Inspect and clean distributor pipe
slots as needed.
• Install the correct injector.
• Increase water pressure above
172 kPa minimum.
• Remove drain line restriction.
• Increase slow rinse time, fast
rinse time or both.
• Inspect and clean the injector
and/ or injector screen assembly.
#3 Outlet cartridge
#2 Rinse cartridge
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