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1. Basic
2. Operating mode selection when performing 2-room operation
operation
1) The outdoor unit operation mode conforms to the instructions of the indoor unit that was pressed first.
2) When combined operation consisting of cooling (dry) and heating, fan and heating, or cleaning
operation and heating is performed, operation conforms to the instructions of the indoor unit that
was pressed first as shown in the following table.
3) The indoor fan stops for the indoor unit that was pressed last and which instructions are ignored.
4) When three or four indoor units are operated concurrently, the priority is also given to operating
mode of the indoor unit which was pressed first as same as the case when two indoor units are
operated concurrently.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3. Cooling/Heating operation
The operations are performed in the following parts by controls according to cooling/heating conditions.
1) Receiving the operation ON signal of the remote controller, the cooling or heating operation signal
starts being transferred form the indoor controller to the outdoor unit.
2) At the indoor unit side, the indoor fan is operated according to the contents of "2. Indoor fan
motor control" and the louver according to the contents of "5. Louver control", respectively.
3) The outdoor unit controls the outdoor fan motor, compressor, pulse Modulating valve and
4-way valve according to the operation signal sent from the indoor unit.
Operation ON
Indoor unit control
Sending of oper
Outdoor unit control
Operation flow and applicable data, etc.
Indoor unit
Set operating mode
Pressed first
Cooling (dry)
Pressed last
Cooling (dry)
Pressed first
Heating
Pressed last
Heating
Pressed first
Fan only
Pressed last
Fan only
Pressed first
Fan only
Pressed last
Cooling (dry)
Pressed first
Cooling (dry)
Pressed last
Fan only
Pressed first
Cooling (dry)
Pressed last
Heating
Pressed first
Heating
Pressed last
Cooling (dry)
Pressed first
Cleaning operation
Pressed last
Cleaning operation
Pressed first
Cleaning operation
Pressed last
Cooling (dry)
Pressed first
Cooling (dry)
Pressed last
Cleaning operation
Pressed first
Cleaning operation
Pressed last
Fan only
Pressed first
Fan only
Pressed last
Cleaning operation
Pressed first
Cleaning operation
Pressed last
Heating
Pressed first
Heating
Pressed last
Cleaning operation
ation command signal
Actual indoor unit operation
Cooling (dry)
Cooling (dry)
Heating
Heating
Fan only
Fan only
Fan only
Cooling (dry)
Cooling (dry)
Fan only
Cooling (dry)
Fan stopped
Heating
Fan stopped
Cleaning operation
Cleaning operation
Cleaning operation
Cooling (dry)
Cooling (dry)
Cleaning operation
Cleaning operation
Fan only
Fan only
Cleaning operation
Cleaning operation
Fan stopped
Heating
Fan stopped
Setup of remote controller
Indoor fan motor control / Louver control / Operation Hz
Control (Requierment)
Compressor revolution control / Outdoor fan motor control /
Operation Hz control (Include limit control)
4-way v
alve control
In cooling operation: ON
[
In heating operation: OFF
Pulse Modulating valve control
–
–
14
FILE NO. SVM-12072
Description
Actual outdoor unit operation
Cooling
Heating
Stopped
Cooling
Cooling
Cooling
Heating
Stopped
Cooling
Cooling
Stopped
Stopped
Stopped
Heating
]
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