Gree GMV5 Series Service Manual page 88

2. Introduction to Functions
2.1 List of functions
Function
Code Function Name
Refrigerant
A2 recovery operation
Unit
cooling/heating
A6 function
Outdoor silent
A7 mode
Aftersales
A8 vacuuming mode
Conservation
n0 control 1
Forcible defrosting
n3 operation
Conservation
n4 control 2
Indoor unit project
n5 number offset
n6 Fault query
n7 Parameter query
Indoor unit project
n8 number query
Online IDU
n9 quantity query
Outdoor unit bar
code function
nb query
2.2. Description of Functions
(1) A2 Refrigerant recovery operation
This function partially recovers refrigerants in a faulty module or IDU pipeline during unit maintenance.
The refrigerant recovery volume of each basic module is as follows:
GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
Function Meaning
Fully or partially recovers
refrigerants in a faulty module
or IDU pipeline according to
the system pressure after
automatic startup during
maintenance.
Sets the unit to
cooling/heating,
single-cooling,
single-heating, or air supply
mode for centralized
management.
Sets different silent modes to
meet users' noise
requirements.
Automatically
enables all electronic
expansion valves and
electromagnetic valves
during maintenance to
guarantee vacuum
processing in all pipelines.
Automatically decreases the
power consumption of the
unit according to system
operation parameters.
Forcibly enables ODU
defrosting operation.
Forcibly decreases
the maximum power
consumption of the unit.
Prevents IDU project number
conflicts when different
refrigerating systems are
controlled in a centralized
manner.
Queries historical fault
information of the ODU.
Queries real-time operation
parameters of the ODU.
Displays project numberes of
all IDUs through ODU
operations.
Displays the number of
online IDUs.
Queries the entire-unit bar
code and controller bar code
of ODU.
Factory Settings
Code Meaning
—— ——
Cooling/Heating
nA function
No silent
00 settings
—— ——
No automatic
conservation
01 settings
—— ——
No capacity
output limitation
00 settings
—— ——
—— ——
—— ——
—— ——
—— ——
—— ——
85
Remark
It can only
be set.
It can be set
and queried.
It can be set
and queried.
It can only
be set.
It can be set
and queried.
It can only
be set.
It can be set
and queried.
It can only
be set.
It can only be
queried.
It can only be
queried.
It can only be
queried.
It can only be
queried.
It can only be
queried.