Gree GMV6 DC Inverter VRF Units Service Manual
4.2.2 Function Description
Function
Code
Function Name Description
Remarks
A2
Refrigerant
recycle
This function is automatically
started during maintenance. Based
on the system pressure change,
this function recycles all or partial
refrigerant of the faulty module or
the indoor unit pipeline.
— —
This function can
only be set.
A6
Cooling/heating
of the entire
system
The unit can be set to cooling and
heating, cooling only, heating only,
or fan mode for centralized
nA
Cooling and
heating
This function can
be set and
queried.
A7
Outdoor silence
mode
This function sets different silence
modes based on the user's needs.
00 No silence
be set and
A8
After-sales
vacuum pumping
mode
During maintenance, the system
automatically turns on all electronic
expansion valves and solenoid
valves to ensure that all lines can
— —
This function can
only be set.
n0
Auto energy
saving
This function can automatically
reduce power consumption of the
unit based on system operating
01
Capability
priority
control
This function can
be set and
queried.
n3 Forced defrosting
This function forcibly enables
defrosting of the outdoor unit of the
— —
This function can
only be set.
n4
Forced energy
saving
This function forcibly reduces the
maximum power consumption of
10
capability
be set and
n5
Indoor unit
engineering SN
offset
When different refrigerating
systems are controlled in a
centralized manner, this function
avoids the conflict of indoor unit
— —
This function can
only be set.
qJ
One-button
drainage of dual-
heat-source units
This function opens the water
valves of all dual-heat-source
indoor units in the system.
—
—
applicable to
drainage in non-
C8
Compressor
emergency
setting
—
00
operation of
the
—
CA
emergency
— 00
operation of
—
C9
Fan emergency
setting
—
00
operation of
—
1G
Outdoor static
pressure setting
— 00
—
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