Hitachi EP-A7000 instruction manual Dust sensor, Humidity Sensor, Auto Detection

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Dust sensor

Dust sensor is capable of sensing the dusts in the air such as cigarette smoke, house dust, pollen, etc.

Dust sensor may fail to sense the dusts stirred up when you lay out or put away the bedding, which are significantly fewer contaminants than cigarette smoke, etc. In such a case, the displayed air contamination level may appear to be lower.

Carry out the periodical cleaning every 3-6 months. Otherwise poor performance of

the dust sensor will result.

P.E-22

Dust Sensor

Humidity Sensor

The humidity sensor finds the humidity of room air during operation.

Humidity level should be taken as a guide only.

The indication may differ from hygrometer reading.

Humidity will change as temperature changes.

Humidity level may differ between well-ventilated and ill-ventilated places.

Humidity Sensor

Auto Detection

The air purifier performs automatic operation by detecting room air contamination with “Odor Sensor” and room air humidity with “Humidity Sensor”.

In the first 3 minutes after the power cord is plugged in, the unit will check room air condition and save it in memory. During the time, the “Air Sensor” indicator and “Humidity Level 50” indicator will blink. After 3 minutes, both the “Air Sensor” and “Humidity Level 50” indicators will go off and the purifier is now ready to operate.

You may start the operation in less than 3 minutes after plugging the power cord.

In this case too, the “Air Sensor” and “Humidity Level 50” indicators will continue to blink, meaning the unit is checking room air condition. After 3 minutes, the indicators will show your room air conditions.

If you plug in the power cord under contaminated air condition, the sensor sensitivity may be reduced. In such a case, perform High or Max operation. Or you may try to make the room air cleaner by opening a window before plugging the power cord. If the sensor sensitivity remains low after this, change the sensor sensitivity setting.

Using the Control on Purifier Memory Function / Sensors / Auto Detection

E-15

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Contents EP-A7000 Features / Name of Each Component / Accessories Operation Buttons and Indicators Safety Precautions Meanings of SymbolsDefinition of each indication Water Tank, Water Tray and Humidifying Filter To Prevent Floor Scratches or Wall Stains Do not subject water tank to impact Do not subject remote controller to impactDo not directly fan animals and plants Do not run with filter detachedPreparations for Operation Install the Deodorizing filterInstall the dust filter on the unit Reinstall the panel on the unitSet the water tank into the water tank holder Inserting Batteries into Remote ControllerInsert batteries and close the cover Gently remove the water tankInstallation Air Purify mode indicator is lit in greenRemote controller operation is accepted even in this state Orange Installation Using Remote ControllerGreen PollenSilent Medium High Blinking Max Using Remote ControllerAirflow level indicator comes on Airflow rate changes in the following sequenceOperation will stop approx Off-timer 4 hours is setOperation with Max airflow Will continue for about 5 minutesOdor Sensor Using the Control on PurifierMemory Function Air SensorDust sensor Humidity SensorAuto Detection Press button Each operation modeSensor sensitivity can be adjusted in 3-step fashion Factory setting is MediumUseful Feature Indicators are dimmedEvery time you press button, Set and Cancel will alternate When the Clean Humidifying Filter Indicator Comes On CleaningWater Tank Guide for cleaning Daily Humidifying Filter Guide for cleaning Once a monthCleaning Wipe off water and assemble Water Tray / Tray Cover Guide for cleaning Once a monthReplacing Humidifying Filter Do not dispose of the humidifying filter caseReattach the pre-filter Pre-filterGuide for cleaning Once a monthClean the pre-filter Remove the panel. P.E-8 Remove the pre-filterDust sensor Cleaning guide every 3-6 months Purifier Body Guide for cleaning Once a monthFilter Replacement Replacement IntervalPrecautions on Filter Handling It may also be a cause of malfunction Replacing the FilterRemove the panel and the pre-filter Remove the used filter Use a genuine filter for the Hitachi Air PurifierAlert Display Troubleshooting GuideWater leaks Indicator is dim Clean Humidifying Filter indicator does not go offIs there anything nearby that the odor sensor might sense? Following Conditions Are Normal 10kg Length of power cord Approx .8m Deodorizing filterApplicable floor space 50m