Ensure the projector operates between ambient temperatures (5 ºC to 35 ºC).
Do not try to touch the ventilation outlet as it can become very hot after the
projector has been turned on or immediately after it is turned off.
Do not look into the lens while the projector is on as it may cause injury to your
Do not place any objects near or in front of the projector or cover its lens while the
projector is on as the heat may cause the object to melt or burn.
Do not use the wireless projector near cardiac pacemakers.
Do not use the wireless projector near medical equipment.
Do not use the wireless projector near microwave ovens.
• Do not attempt to wall mount the projector yourself. It should be installed
by a qualified technician.
• Recommended Projector Ceiling Mount Kit (P/N: C3505). For more
information, see the Dell Support website at support.dell.com.
• For more information, see the Safety Information that shipped with your
• The 4220/4320 projector can only be used indoors.
Your Dell Projector