PLZ-4W Maintenance and Calibration 8-3
2. Remove the dust filter from the inside of
the louver and clean it.
Remove the dust on the dust filter such as by
using a vacuum cleaner. If the filter is
extremely dirty, clean it using a water-diluted
neutral detergent and dry it completely.
• When the PLZ-4W is in operation, air is sucked through the dust filter to
cool the PLZ-4W. If moister is included in the dust filter, the temperature or
humidity inside the PLZ-4W increases and may cause a malfunction.
3. Attach the dust filter to the louver.
Attach it so that the tab on the louver fits into the cut on the dust filter.
4.
Attach the louver to the panel by
pulling up on the louver while
holding the 2nd level of the louver
with your hand until the pin is fixed
in place.
8.1.3 Inspecting the Power Cord
Check the power cord for breaks in its protective cover, cracked plugs or rattling,
and loosened screws.
8.1.4 Internal Inspection
The electrolytic capacitors, fan motor, and battery for memory backup inside the
PLZ-4W are consumable parts.
It is recommended that the PLZ-4W be overhauled every 10000 operating hours
along with internal inspection and cleaning. For overhauling your PLZ-4W, contact
your Kikusui agent or distributor.
Backup battery
The PLZ-4W employs a lithium battery for memory backup.
The battery life depends on the operating conditions. Three years after purchase is a
good estimation. If the panel settings are different at the time the power is turned off
and at the time the power is turned on again, the battery is already dead.
To replace the battery, contact your Kikusui agent or distributor.
Dust filter
Louver
Tab
Cut
Fig. 8-2 Dust filter
CAUTION
Pin
Fig. 8-3 Attaching the louver
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