Gree GMV-R series User Manual

Multi VRF Indoor
Unit Service Manual
81
Number of indoor unit
dispay
LED6
LED5
LED4 LED3 LED2 LED1
1
dark
dark
dark dark dark light
2
dark
dark
dark dark light dark
3
dark
dark
dark dark light light
4
dark
dark
dark light dark dark
5
dark
dark
dark light dark light
6
dark
dark
dark light light dark
: : : : : : :
: : : : : : :
62
light
light
light light light dark
63
light
light
light light light light
2 AFTER-SALES EMERGENCY MEASURES
When some unrecoverable fault occurs to one module which is connected with several others in parallel,
the following emergency measures are recommended to guarantee the heating or cooling capacity of the indoor
units and the service life of modules except the faulted one are not affected.
Step 1: set all indoor units under “Off” mode and cut off the power supply to the indoor and outdoor units.
Step 2: shut off all cutoff valves of the faulted outdoor unit, including the cutoff valves of the liquid/gas pipe
as well as the oil balancing valve.
Step 3: cut off the air switch of the module.
Step 4: remove the communication line between the faulted module and other modules which are still kept
connected through the communication line.
Step 5: readjust the address and quantity settings on the main board of the modules except the faulted
one.
Step 6: power and restart the unit
3 WIRING DIADRAM
3�1 Cassette Type
3.1.1 Four-way Cassette Type
GMV(L)-R28T/Na-K~GMV(L)-R140T/Na-K.
Manual Panel
4
3
2
1
Limit Switch
Water Level Switch
Swing Motor
Environment
Temp.
sensor
Out
Temp.
sensor
Mid
Temp.
sensor
In
Temp.
sensor

Gree GMV-R series Specifications

General

Brand	Gree
Model	GMV-R series
Category	Air Conditioner
Language	English