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6
3. MAINTENANCE
Risk of electric shock. Before performing any maintenance or servicing, always disconnect the unit from its power source.
When cleaning the unit, it is recommended to wear safety glasses and gloves.
WARNING
!
3.1 QUARTERLY MAINTENANCE
1. Turn off and unplug the unit.
2. Open the unit door by unlatching its both side latches.
VD0397
3. While retaining the core (), loosen the wing nut () and rotate the core retaining
bracket (shaded part in illustration at right) to disengage it from the core flange.
Slide out the core with its filters.
4. Clean the inside walls and door of the unit with a damp cloth, then wipe with a clean
dry one.
5. Remove both filters from core top and wash them under hot water with mild soap.
Rinse thoroughly and let dry completely before reinstalling on the core.
6. Remove the dust on the core using a vacuum cleaner and a soft brush attachment.
VO0257
Always hold the core when rotating the core retaining bracket; failure to
do so will cause the core to fall out.
WARNING
!
Do not soak the recovery core in water!
CAUTION
Be careful when opening the door; water may be present when outdoor
temperature is cold.
CAUTION
VR0085
SIDE LATCHES
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