DC Inverter Multi VRF System
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If selection is made for 5min, unit will exit and resume displaying the current status.
8.2 Cool & Heat Function
This function can set operation modes and prevent mode conflict that is caused by different
settings for different indoor units. It is especially suitable for hotels and other small business areas.
There are 3 levels for this setting:
Level A
—
Mode Lock Control
Upon entering this function setting, main board of outdoor unit will display as shown below:
LED1
LED2
LED3
Function code Current progress Display Current status Display
A6
nC
Blink
nC
Blink
Press SW1 button (
▲
) and SW2 button (
▼
) to select the following functions:
LED1
LED2
LED3
Function code Display Current progress/mode Display Current status Display
A6
On
nC
Blink
nC
Blink
A6
On
nH
Blink
nH
Blink
A6
On
nA
Blink
nA
Blink
A6
On
nF
Blink
nF
Blink
When applicable mode is selected, press SW7 to confirm. The related display is as shown
below:
LED1
LED2
LED3
Function code Display Current progress/mode Display Current status Display
A6
On
nC
On
nC
On
A6
On
nH
On
nH
On
A6
On
nA
On
nA
On
A6
On
nF
On
nF
On
This setting will be memorized by master unit and can’t be cancelled even when power is on
or off.
Then press SW6 on the master unit to return to the previous step.
If no selection is made for 5min, unit will exit and resume displaying the current status.
(If this button is pressed when function is being set, system will return to the previous step. If
SW6 is pressed when setting is finished, system will resume displaying the current operation
status.)
Default setting is “nA” cooling and
heating type.
Level B
—
IDU Mode Auto Control
When Level A is disabled or outdoor unit is set to be cooling and heating type, the operation
mode within one system depends on the master-salve setting of indoor units.
8.3 Forced Defrosting
This function can only be set when outdoor compressor is running.
Upon entering this function, main board of outdoor unit will display as shown below:
LED1
LED2
LED3
Function code Display Current progress/mode Display Current status Display
n3
On
00
Blink
00
Blink
