Nero 5G Ozone Machine Owner's Manual page 8

When the Nero 5G Ozone Machine
effective, the ozone plates should be
replaced after 6000 hours)
How to replace the ozone plate:
Turn off the local power supply.

Pull out the ozone plate module directly by hand.

Install new ozone plate module

(Be careful not to drop the plate module).
no longer produces enough ozone to be
replaced.
8
(Usually they should be