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EXCEPTION FOR MUL Tl SPLIT TYPE
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 wil
l
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 f irst indoor unit that is turned
ON from Stand By
.
The following tab le shows the indoor unit operation modes
that can be operated per active system mode :
System Active Mode
Cooling
Heating
Ventilation
v
X
Requested
Cooling
X
v
indoor unit
Heating
v
X
operation
Dry
v
(cooling onl
y)
v
(h eating
only)
mode
Auto Cool/Heat
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:
1.Louver opens
;
2.Green(OPER)LED blinks once in two seconds
;
3.1ndoor fan is forced
off.
-20-
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