HIKVISION DS-8004HCI-S User Manual page 158

Notes:
Place the DVR in well ventilated space and ensure that there is no restriction to air flow around
the unit. Do not place two units closely side by side as this will block the access holes on the sides
of the units. Do not place anything directly on top of the unit that will block the air flow through
the top cover holes.
Install the unit so that it operates within the allowed range of temperature and humidity as in
specification.
Keep liquids away from the unit.
Dust will eventually clog vent holes and cover internal parts. The unit should be cleaned
periodically by a qualified technician.
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