GREE DC Inverter Multi VRF System II Service Manual
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LED
Function code Display
00~12 ON
Notice: code 00 of LED refers to normal mode. Codes 01~09 refer to smart night silent mode.
Codes 10~12 refer to compulsory silent mode. When setting is finished, master unit will memorize it so
that it can’t be cancelled even when power is on or off.
Then press SW4 on the master unit to return to the previous step. (If this button is pressed when
function is being set, system will return to the previous step. If SW4 is pressed when setting is finished,
system will resume displaying the current operation status.)
If then no motion is taken to the master unit for 5min, unit will exit and resume displaying the current
status.
2.3.7 Cool & Heat Function
Note:
Cool & Heat Function is not available for Cooling only units˗
Cool & Heat Function only work for air conditioning modeˈit doesn’t affect the living warm water and
floor heating functions.
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:
LED
Function code Display
Current status Blink
Press SW1 button (▲) and SW2 button (▼) to select the following functions:
LED
Function code Display
nC Blink
nH Blink
nA Blink
nF Blink
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