10
EXCEPTION FOR MULTI SPLIT TYPE
ln multi split applications where more than a single indoor unit is connected to the same
outdoor unit, it may happen that the requested operation mode can not be operated.
The reason for that is that the system is currently operating in a different mode.
The system operation mode can be either cooling or heating and is set by the outdoor unit
controls, based on indoor and outdoor unit settings.
The rules for the mode settings may be different from one application to another.
In most applications the system operation mode will not be changed as long as there is an
operating indoor unit requesting the active mode.
The operation mode in such application will be set by the first indoor unit that is turned ON
from Stand By.
The following table shows the indoor unit operation modes that can be operated per active
system mode:
System Active Mode
Cooling
Heating
Requested
indoorunit operation
mode
Cooling
V
X
Heating
X
V
Dry
V
X
Auto Cool/Heat
v (cooling only)
v (heating only)
Ventilation
V
X
(v - enabled indoor unit operation mode,X - disabled indoor unit operation mode)
Indoor unit operation when the requested mode is disabled is as following:
Louver opens;
●
Green (OPER) LED blinks once in two seconds;
●
Indoor fan is forced off;
●
Содержание DHA series
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