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Test Run
Night silent operation Function
In cooling mode, this function makes the ODU fan operate at low RPM to reduce the fan noise of ODU at
night which has low cooling load.
Max. RPM setting method
Note 1)
Example of Max. RPM Setting
Fan Max. RPM : Step 1
- Night silent operation start
8 hours after max. ODU temp. sensing, the fan max. RPM is operated setting RPM.
- Night silent operation end
9 hours after Night silent operation is started, the function should be stopped automatically.
CAUTION
1. Request installer to set the function during installation.
2. In case the function is not used, set the dip S/W OFF and reset the power.
3. If ODU RPM changes, cooling capacity may go down.
[Note]
1. Select appropriate RPM referencing noise table.
Step
Black button
1
2
3
4
5
6
7
8
9
80
Outdoor Unit
Dip S/W No.12+14 ON
Main PCB Power Reset
Setting the Fan Max. RPM
Setting Complete
Setting
Fan Max
RPM
Red button
1 time
1 time
510
2 times
1 time
510
3 times
1 time
510
4 times
1 time
450
5 times
1 time
450
6 times
1 time
450
7 times
1 time
400
8 times
1 time
400
9 times
1 time
400
Master ODU
SW01B
Master ODU
SW01S
SW01V
SW02V
Judgment
Operation
(hr)
(hr)
8
9
6.5
10.5
5
12
8
9
6.5
10.5
5
12
8
9
6.5
10.5
5
12
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