GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 
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Step 1  Step 2 
 
Step 3                                                              Step 4 
                                                                             
Step 5                                                                  Step 6 
 
Method 2: Remove the unit top case. Detailed operations are as follows: 
(1)  Install the ODU (2) and steel-plate ventilating duct (1). Take out the grille from the top of the top 
case component. Use the prepared canvas casing inside out (4) to cover the surroundings over 
the top of the unit. Keep the top of canvas casing (4) 30 to 50 mm higher over the top of the