MULTI VRF-Ⅱ  INDOOR UNIT SERVICE MANUAL    EUROPEAN/LATIN AMETICA (R410A) 
 
147 
4.10 Slim Duct Type   
Note: The following steps are specific for GMV-ND22PL/B-T units. For other units, the assembly and 
disassembly procedure is similar except the numbers of louvers and motors.   
Precondition: The power supply has been disconnected.
 
1. Remove the 
cover plate of the 
electric box. 
●Disconnect the power 
supply of the IDUs, use a 
screwdriver to unscrew the 
cover plate of the electric 
box, and then remove the 
line connecting to the motor. 
 
2. Remove the 
rear volute casing. 
●Loosen the fasteners that 
connect the rear volute 
casing with the front volute 
casing and remove the rear 
volute casing. 
3. Remove the 
front volute 
casing. 
●Use a screwdriver to 
unscrew the front volute 
casing and then remove the 
volute casing. 
4. Remove the 
louver and motor. 
●Use a screwdriver to 
unscrew the louver and 
loosen the fasteners of the 
motor. 
●Remove  the  motor  from 
the  support  and  remove 
the louver from the motor. 
Then, remove the motor. 
●Install a new motor. 
6. Install units in a 
reverse order of this 
procedure. 
 
 
●Assemble units based 
on the reverse order of 
this procedure and power 
on the units for test.