Part
2. Functional Specifications
DCM014A51
Design Guide
63
16. Fan Speed
Member number: 16
Object name:
Fan Speed
Object type:
Multistate Value
Description:
Monitors/configures the indoor unit fan speed level.
Present_Value property (Description property string):
1: Low
2: Reserved
3: Medium
4: Reserved
5: High
6: Reserved
7: Reserved
8: Auto
Notes:
1. The indoor unit has separate fan speed settings for "cool mode" and "heat mode". This
object configures and reads the fan speed for the current operation mode.
2. If an Auto-command is sent to an indoor unit without the “auto” fan speed function, the
command is sent but ignored by the indoor unit. The value of the Present_Value is
changed to the current fan speed value returned by the indoor unit.
3. 5-speed indoor unit will be supported in the future; therefore, Present_Value = 2 and 4
are Not Available values.
4. For commands to 2-speed and 3-speed indoor units, use the Present_Values below:
2-speed indoor unit: 1: "Low" 5: "High"
3-speed indoor unit: 1: "Low" 3: "Medium" 5: "High"
Values other than those indicated above are unsupported. If a value other than those
indicated above is sent to the Present_Value in a command in error, it is changed to a
settable value and reflected as follows in the indoor unit.
Present_Value in
the command
1
2
3
4
5
6
7
8
2-speed
1
5
5
5
5
5
5
8
3-speed
1
3
3
5
5
5
5
8
5. When a 5-speed indoor unit is connected to the
iTM
, the
iTM
identifies it as a 3-speed
indoor unit.
The following table shows the corresponding values in commands from the remote
controller to the 5-speed indoor unit, fan speed indications on the
iTM
, and values of the
Present_Value.
Value in command from
the remote controller
1
2
3
4
5
6
7
8
Fan speed indication on
the iTM
1
1
3
3
5
5
5
8
Present_Value
1
1
3
3
5
5
5
8
6. Relinquish_Default property is fixed to "1".
