80
Outdoor Unit
80
Outdoor Unit
Test Run
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.
[Note]
1. Select appropriate RPM referencing noise table.
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.
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.
Main PCB Power Reset
Setting the Fan Max. RPM
Setting Complete
Dip S/W No.12+14 ON
Master ODU
SW01S
Master ODU
SW01B
SW01V
SW02V
Note 1)
Max. RPM setting method
Example of Max. RPM Setting
1 time
1 time
1 time
1 time
1 time
1 time
1 time
1 time
Red button
Black button
10.5
9
12
10.5
9
12
10.5
9
Operation
(hr)
6.5
400
8 times
8
1 time
12
5
400
9 times
9
8
400
7 times
7
5
450
6 times
6
6.5
450
5 times
5
8
450
4 times
4
5
510
3 times
3
6.5
510
2 times
2
8
510
1 time
1
Judgment
(hr)
Fan Max
RPM
Setting
Step
Night Low Noise Function
