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COPYRIGHT 2008, ALL RIGHTS RESERVED, Original Instructions
PERMA PURE LLC
Zero-Air™ Generator User’s Manual
Doc. ZA-MAN-001 REV 01
Page 7 of 10
Maintenance
WARNING !!
De-pressurize and unplug the ZAG before attempting any maintenance or
removing the top or bottom panels!
Routine maintenance consists of periodic carbon replacement and outlet filter replacement.
Under normal, intermittent use, desiccant should last up to six months.
Activated carbon/alumina replacement
Activated carbon canister is located behind top panel. Top half of canister is exposed to
allow visual inspection of mixture. As the mixture is used, its color changes from purple to
brown. When ¾ of the canister has changed to brown, replace mixture. The mixture can not
be regenerated and must be discarded.
Replacing the mixture
1.
Place towel or cloth across bottom panel to prevent scratches.
2.
Disengage four (4) panel screws by turning ¼ turn counterclockwise.
3.
Pull panel out and lay down on top of bottom panel.
4.
Unscrew nuts off brackets.
5.
Detach tubing by loosening compression fittings using 5/8” wrench.
6.
Remove canister from panel.
7.
Remove bottom black plug using 7/8” wrench.
8.
Pour out pellets while tapping canister lightly.
9.
Re-fill canister by slowly pouring in fresh activated carbon/impregnated alumina
mixture.
10.
Tap side of canister while filing to settle mixture and reduce air pockets.
11.
Apply Teflon® tape to the plug and replace in bottom of canister and tighten.
12.
Reverse procedure to install canister to ZAG.
