N O T E
When the indoor unit fan is stopped due to another control, it
is not available to operate the indoor fan.
6.3.2 Night-shift (Low noise)
Press PSW3 and select the setting for condition “1” of the night shift (low noise) “
ni
” consequently, the function can be set.
The outdoor fan operation is controlled by the fan controller, with the sequence shown in the picture.
The night shift operation shall be applied in case the cooling capacity has the allowed range to decrease the capacity and
the low noise level operation is required especially at night.
1 Outdoor fan
(
o
C)
A
Maximum rotation (Rotation ratio)
B
Outdoor temperature
N O T E
Maximum rotation is always 100% (rotation ratio) for the standard unit. (No limitation of the outdoor
temperature).
2 Frequency range (cooling operation)
When Night Shift is not Set ni=0
When Night Shift is Set ni=1
Outdoor unit
capacity (HP)
Minimum
frequency (Hz)
Maximum
frequency (Hz)
Conditions
Outdoor unit
capacity (HP)
Minimum
frequency (Hz)
Maximum
frequency (Hz)
Conditions
8
15
80
Except the
conditions on the
right
8
15
60
-
10
90
10
60
12
100
12
60
14
140
14
75
16
150
16
75
18
160
18
75
Start at Random
operate
stop
(min.)
6
2
6
2
6
6
2
6 Optional functions
131
SMGB0065 rev. 1 - 12/2010
6
