Cool & Heat Function - Gree GMV-140WL/A-T User Manual

DC Inverter Multi VRF System User Manual
If then no motion is taken to the master unit 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 collision that is caused by setting
different modes 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 below:
LED1
Function code
A6
Press SW1 button (▲) and SW2 button (▼) to select the following functions:
LED1
Function code
A6
A6
A6
A6
When applicable mode is selected, press SW7 to confirm. The related display is as below:
LED1
Function code
A6
A6
A6
A6
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 then no motion is taken to the master unit 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.
LED2
Current progress
nC
LED2
Display Current progress/mode
On nC
On nH
On nA
On nF
LED2
Display Current progress/mode
On nC
On nH
On nA
On nF
LED3
Display Current status
Blink nC
Display Current status
Blink
Blink
Blink
Blink
Display Current status
On
On
On
On
29
Display
Blink
LED3
Display
nC Blink
nH Blink
nA Blink
nF Blink
LED3
Display
nC On
nH On
nA On
nF On