Gree UM600PH/A-M, Service Manual

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GREE Duct type Ducted Type Split Air-Conditioner Units
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Select corresponding quiet mode through “SW1” and “SW2”, short press “SW3” to confirm the
selected mode.
NOTE:
code 00 is the normal mode, code 10
～
12 is the compulsory quiet mode, the biggier the numerical
value is, the better quiet effect is. After setting is completed, the master control unit will memorize the
setting, and the setting shall not be cleared even after power outage and energization. The defaulted
factory setting for the unit is 00.
1.5.3 Unit Cooling and Heating Function Setting
This function can conduct compulsory setting to unit operation mode, after entering function setting
(A6), main board indicator of outdoor unit is displayed as follows:
LED
Function code Display method
nC / nH / nA / nF Blink
Select corresponding quiet mode through “SW1” and “SW2”, short press “SW3” to confirm the
selected mode.
NOTE:
“nA” is cooling and heating type; “nC” means cooling only; nH means heat pump; “nF” means air
supply; After setting is completed, the master control unit will memorize the setting, and the setting shall
not be cleared even after power outage and energization.
1.5.4 Mandatory Defrosting Operation
Mandatory defrosting setting is only effective if the compressor of outdoor unit is operating, after
entering the function setting (n3), main board indicator of outdoor unit is displayed as follows:
LED
Function code Display method
n3 Blink
Short press “SW3” to confirm, at this time, the unit will enter mandatory defrosting mode, once
entering mandatory defrosting mode, the exist of the system must meet the defrosting exist condition,
other operations are invalid.
1.5.5 Energy Conservation Operation Setting
The function enables the unit to operate in energy conservation mode, after entering function setting
(n0), main board indicator of outdoor unit is displayed as follows:
LED
Function code Display method
01/02 Blink
Select corresponding quiet mode through “SW1” and “SW2”, short press “SW3” to confirm the
selected mode.
NOTE:
the defaulted factory setting is “capacity comes first”, namely “01”, which means the capacity shall
control preferentially, “02” means the master control unit will memorize the setting after setting energy
conservation control preferentially, and the setting will not be cleared after re-energization.