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Gree GVA48AL-M3NNC7A/I User Manual

Gree GVA48AL-M3NNC7A/I
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Service Manual
26
Technical Information
fan motor operates at low speed.
When Tamb.
Tset-2
, the compressor and the ODU fan motor stop, while the IDU fan motor runs at low speed.
In drying mode, the 4-way valve is de-energized (4-way valve is not available for cooling only unit); Temperature setting range is
16
30
. Fan speed can’t be adjusted.
Protection functions (See function protection of this section)
(4)Heating mode(heating mode is not available for cooling only uni)
Operation condition and process
When Tamb.≤Tset-1
, the system starts heating operation. In this case, the 4-way valve is energized. The compressor and the
ODU fan motor operates simultaneously; The IDU fan motor will be started up after delayed for a period of time to make sure the air
conditioner won’t blow out cold wind.
When Tpreset-1
℃<
Tamb.
Tpreset+1
, the system keeps previous operation status.
When Tamb.≥Tpreset+1
, the compressor and the ODU fan motor stop. The 4-way valve is energized all the time. The IDU fan
motor will blow residual heat after operating at set speed for a period of time consecutively to make sure the inner temperature of air
conditioner won’t be too high.
In heating mode, 4-way valve is energized. Temperature setting range is 16
30
.
Defrosting condition and process
In order to ensure heating effect, the unit will proceed defrosting automatically according to the frost situation of outdoor unit. Dual-8
nixie tube displays H1 during defrosting. (For some models, heating icon is bright for a period of time and then OFF).
Protection functions (See function protection of this section)
(5) Fan mode
Operation condition and process
The IDU fan motor operates at set speed, while the compressor, the ODU fan motor and 4-way valve stop.
Protection functions (See function protection of this section)
10S
20S
10S
T
preset
+1
T
preset
-1
Stop heating
Original operating status
Start heating
valve
Outdoor unit
Intdoor unit
Compressor
min.
min.
min.
T
amb
.
.nim.nim
Set fan speedSet fan speed
Reversing
T
preset
T
amb.
+2
T
preset-
2
Cooling
Drying
Stop
6 min
6min.
4min.
4min.
Compressor
Low speed
Outdoor fan motor
Indoor fan motor

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Gree GVA48AL-M3NNC7A/I Specifications

General IconGeneral
BrandGree
ModelGVA48AL-M3NNC7A/I
CategoryAir Conditioner
LanguageEnglish

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