Please read the following carefully before installing this unit.
Precautions during Installation
TOPDo not install at the following
This unit is a precision device. Please refrain from installing or using it at the following locations. Otherwise, it may cause fire or malfunction.
Dusty, wet and humid places
Places subject to oily smoke or cigarette smoke
On top of a carpet or bedding, or other soft surfaces
Places exposed to direct sunlight
Places with a high or low temperature
Do not install this unit in a room that is oily or subject to cigarette smoke. Even a small quantity of smoke or oiliness can have a long-term impact on this unit.
This unit produces a great amount of heat, and is designed to take in cool air to cool its optical components. Using the unit at the above locations may cause dirt to attach to the light path, thereby resulting in dark images or dull colors.
Dirt that sticks to the optical components cannot be removed.
Maintain clearance from the wall, etc.
As the unit discharges a large amount of heat, install it with adequate clearance from the surroundings as shown below.
Leave the front area of the unit unblocked.
If there is any obstructing object in front of the exhaust vent, hot air will flow back to the unit and cause it to heat up. Hot air flowing out of the unit may cast shadows on the screen (heat haze phenomenon).
Using the projector
This unit uses a projection lamp, which will heat up when in use.
Please refrain from projecting in the following circumstances. Otherwise, it may cause fire or malfunction.
Projection with the unit stood vertically
Projection with the unit inclined at an angle
Horizontal inclination: within 
5 
Vertical inclination: within 15
Malfunction may occur if the angle is not set within the abovementioned range.
Installing the screen
Install the unit and the screen such that they are perpendicular to each other.
Please choose a screen material with non-uniform patterns. Uniform patterns such as checks may cause interference patterns to occur.
In this case, you can change the size of the screen to make the interference patterns less noticeable.
Using the projector at a high altitude
When using this unit at a location that is higher than 900 m above sea level (low air pressure), set the “High Altitude Mode” to “On”. (LINK)