86 | FOUR-WAY
MUL
TI V Ceiling Cassette Indoor Unit Engineering Manual
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The standard setup height is 8.9 ft. The charts above show the measurement distribution at the ceiling height of 8.9 ft with a high fan
operating mode.
ARNU123TRD4
Discharge angle: 40°
Air velocity ft/s
Temperature (°F)
8.9 ft
6.6 ft
3.3 ft
0
8.2 ft
0 ft
8.9 ft
6.6 ft
3.3 ft
0
6.6
6.6
4.9
4.9
3.3
3.3
1.6
1.6
64.4
64.4
68
68
71.6
71.6
75.2
75.2
Discharge angle: 50°
Air velocity ft/s
Temperature (°F)
8.9 ft
6.6 ft
3.3 ft
0
8.9 ft
6.6 ft
3.3 ft
0
6.6
6.6
4.9
4.9
3.3
3.3
1.6
1.6
91.4
91.4
86
86
80.6
80.6
75.2
75.2
69.8
69.8
g
n
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a
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H
g
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C
Discharge angle: 70°
Air velocity ft/s
Temperature (°F)
0
0
Discharge angle: 70°
Air velocity ft/s
Temperature (°F)
0
0
8.9 ft
6.6 ft
3.3 ft
8.9 ft
6.6 ft
3.3ft
8.9 ft
6.6 ft
3.3 ft
8.9 ft
6.6 ft
3.3 ft
1.6
1.6
4.9
3.3
1.6
4.9
3.3
71.6
71.6
68
64.4
60.8
68
64.4
60.8
4.9
4.9
3.3
4.9
4.9
3.3
4.9
75.2
78.8
82.4
86
89.6
75.2
78.8
82.4
86
89.6
g
n
i
t
a
e
H
g
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il
o
o
C
4.9 ft
4.9 ft
8.2 ft
8.2 ft
0 ft
4.9 ft
4.9 ft
8.2 ft
8.2 ft
0 ft
4.9 ft
4.9 ft
8.2 ft
8.2 ft
0 ft
4.9 ft
4.9 ft
8.2 ft
8.2 ft
0 ft
4.9 ft
4.9 ft
8.2 ft
8.2 ft
0 ft
4.9 ft
4.9 ft
8.2 ft
8.2 ft
0 ft
4.9 ft
4.9 ft
8.2 ft
8.2 ft
0 ft
4.9 ft
4.9 ft
8.2 ft
Figure 63: ARNU123TRD4, continued.
FOUR-WAY CEILING CASSETTE
Air Velocity / Temperature Distribution