DC Inverter Multi VRF System
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8 Function Setting of Outdoor Unit
When debugging is finished, press SW3 on the master unit and unit will be ready for function
setting. Default display of outdoor unit’s main board is as below:
Then press SW1 button(▲) and SW2 button(▼) on the master unit to switch function codes of
LED1 to select relevant functions.
Function setting includes: outdoor silent mode setting (A7), heating and cooling function
setting (A6), compulsory defrosting (n3)
After selecting relevant functions, press SW7 to confirm and start setting this function. Main
board of outdoor unit will display as below:
8.1 ODU Quiet Function
This function is suitable for projects that have strict requirements for noise. It includes two
modes: smart night silent mode, compulsory silent mode.
When unit enters function setting, main board of outdoor unit will display as below:
Press SW1 button (▲) and SW2 button (▼) to select the following silent modes.
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