Gree GMV-450WM/B-X Service Manual

GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
128
C
Communication failure between indoor and ODUs and IDU's communicator
Communication failure between control board and inverter compressor drive
Communication failure between control board and variable frequency fan drive
No IDU
Indoor unit project number conflict warning
Outdoor unit number inconsistency warning
Compressor emergency
Fan emergency
Module emergency
High rating capacity ratio
No controlling unit
Low rating capacity ratio
Multiple controlling units
System address dial conflict
Multiple master wired controllers
Communication failure between the IDU and receiving light board
IP address allocation overflow
GREE VRF Display Code (6)
Content
symbol
0
1
2
3
4
5
6
7
8
9
A
H
C
L
E
F
J
P
U
b
d
n
y
Distinctiv
e symbol
Statu
s
A
The unit is not commissioned.
After-sales refrigerant recycling
Defrosting
Oil recycling
Cooling and heating setting
Silent mode setting
Vacuum mode
Heating
Cooling
Refrigerant injecting
Ventilation
Filter cleaning reminder
Unit starting commissioning confirmation
Remote emergency shutdown
Emergency shutdown
Restricted operation
n
Economic mode setting
Upper indoor/outdoor capacity ratio
Maximum output capacity
Unite fault enquiry
Unit parameter enquiry
Indoor unit project number enquiry
Cooling and heating model
Heating model
Cooling model
Negative code
Ventilation model
For example, when E4 is displayed on the ODU, find line E and column 4 in the above tables. The fault is
shown in the intersection of the line and column: High exhaust temperature protection.
Note: Previous faults in the system can be queried on the main board of the ODU and commissioning
software. See n6 Fault Enquiry of the ODU or enquiry function of the commissioning software for the
method.

Gree GMV-450WM/B-X Specifications

General

Brand	Gree
Model	GMV-450WM/B-X
Category	Air Conditioner
Language	English