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R699870 - Helios User Manual
INSTALLATION GUIDELINES
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2.6  Ceiling Mounting the Unit
When mounting of this unit is required, make use of the 4 screw holes (M5x20 screws) at the bottom of this unit
indicated by the letter A and B. Note that the B holes are initially populated by the bottom feet, remove the feet
before installing.
d
D
A
A
B
B
Remove the rear feet to free the B holes when ceiling mounting this unit.
Precautions for Ceiling-mount
To ceiling-mount this unit, special expertise and techniques are necessary. Be sure to ask your dealer or
specialist to perform mounting. If installation is performed by an unqualied person, it may cause personal
injury or electrical shock.
Do not mount at places that may be subjected to vibration and shock.
Depth of the screw holes (A) is 23 mm. Use at least 13 mm long screws but not longer than 23 mm as you
may damage inside the projector.
Regardless whether the unit is still under guarantee, Dreamvision is not liable for any product damage caused
by mounting the unit with third party ceiling mount or when the environment is not suitable for ceiling-mount.
Dimensions
Distances between left and right holes is D = 337 mm / 13.26 inches.
Distances between front and back holes is d = 290 mm / 11.42 inches.
2.7  ProjectionDistance
Projection Screen
Diagonal Size
(Aspect Ratio 16:9)
Projection Screen
Base Size
(Aspect Ratio 16:9)
Projection Screen
Height
(Aspect Ratio 16:9)
Projection Distance
60” (152 cm) 52.3” (133 cm) 29.4” (747 cm) 1m75 - 3m60
70” (178 cm) 61.0” (155 cm) 34.3” (872 cm) 2m06 - 4m21
83” (211 cm) 72.3” (184 cm) 40.7” (103 cm) 2m45 - 5m01
100” (254 cm) 87.2” (221 cm) 49.0” (125 cm) 2m97 - 6m06
110” (279 cm) 95.9” (244 cm) 53.9” (137 cm) 3m27 - 6m67
138” (350 cm) 120.3” (306 cm) 67.7” (172 cm) 4m10 - 8m33
150” (350 cm) 130.7” (332 cm) 73.5” (187 cm) 4m50 - 9m13
180” (457 cm) 156.9” (306 cm) 88.2” (224 cm) 5m44 - 11m04
200” (508 cm) 174.3” (443 cm) 98.1” (249 cm) 6m02 - 12m21
220” (559 cm) 191.7” (487 cm) 107.9” (274 cm) 6m63 - 13m44
240” (610 cm) 209.2” (531 cm) 117.7” (299 cm) 7m24 - 14m67
260” (660 cm) 226.6” (575 cm) 127.4” (324 cm) 7m86 - 15m90
280” (711 cm) 244.0” (620 cm) 137.4” (349 cm) 8m47 - 17m13
300” (762 cm) 261.5” (664 cm) 147.1” (373 cm) 9m07 - 17m50
The projection screen sizes and projecting distances in the table above are provided only as a guide. Please
use them as reference during installation.
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